Is the expression a difference of squares? Do not factor the expression. 49-64y^(2) Yes No

Answers

Answer 1

Yes, the expression 49-64y^(2) is a difference of squares.


A difference of squares is an expression that can be written in the form a^(2) - b^(2), where a and b are any expressions. In this case, 49 can be written as 7^(2) and 64y^(2) can be written as (8y)^(2). Therefore, the expression can be rewritten as 7^(2) - (8y)^(2), which is in the form of a difference of squares.

It is important to note that a difference of squares can be factored into the product of two binomials, (a+b)(a-b), but the question specifically asks not to factor the expression.

In conclusion, yes, the expression 49-64y^(2) is a difference of squares.

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Related Questions

Find the second smallest number that has 1, 2, 3, 4, and 5 as factors...

Answers

The second smallest number that has 1, 2, 3, 4, and 5 as factors is 360.

What is factorization?

A number or other mathematical object is factorization or factored when it is written as the product of numerous factors, often smaller or simpler things of the same sort.

To find the smallest number that has 1, 2, 3, 4, and 5 as factors, we can simply multiply these numbers together, since they are all factors of their product:

1 × 2 × 3 × 4 × 5 = 120

Now we need to find the second smallest number with these factors. One way to approach this is to list out the multiples of 120 until we find a number that also has the factors 1, 2, 3, 4, and 5, and is larger than 120.

Multiplying 120 by 2, 3, 4, 5, and 6 gives us the multiples:

240, 360, 480, 600, 720

Checking each of these multiples, we see that only 360 has all the factors 1, 2, 3, 4, and 5. Therefore, the second smallest number that has 1, 2, 3, 4, and 5 as factors is 360.

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A jar contains 54 coins consisting of quarters and dimes. The total value of the coins is $16.85. Which system of equations can be used to determine the number of quarters, q, and the number of dimes, d, in the
jar?

Answers

4. / \\_ _// _//\\

Answer:

Let q be the number of quarters in the jar and d be the number of dimes in the jar.

The total number of coins in the jar is given as 54, so we can write:

q + d = 54

The total value of the coins is $16.85. We can express this as the sum of the values of the quarters and the dimes in the jar:

0.25q + 0.10d = 16.85

Therefore, the system of equations that can be used to determine the number of quarters and dimes in the jar is:

q + d = 54

0.25q + 0.10d = 16.85

help plsssss brother im dyinggg

Answers

Answer:

mAngle EFG = 139°

mAngle IFH = 49°

Step-by-step explanation:

First, just look at the top half of the diagram. Straight across D, F, G is a straight line. That's 180° We can write an equation with the two marked angles added up, equal to 180° to solve for x and to solve for those two angles. See image.

Then look for two crossing lines that makes a giant x (not a variable, on the image) That's EH and DG. The angles that are across from each other are called Vertical angles and they are equal to each other. See image.

Last, see the bottom part of the image where an angle is marked with a little tiny square. That means its a right angle and is 90°. We can subtract to find the second angle that we're being asked to find. See image.

Help please it would mean a lot

Answers

Answer:

2. (x^2 + 3y)(x^2 - 3y)

Step-by-step explanation:

According to algebraic formula:

x^2 - y^2 = (x + y)(x - y)

We have x^4 - 9y^2 => (x^2)^2 - (3y)^2

=> (x^2 + 3y)(x^2 - 3y) or  (x^2 - 3y)(x^2 + 3y)

Answer:

(2) (x²-3y)(x²+3y)

Step-by-step explanation:

x⁴-9y²

Factor/GCF:

x⁴ = (x²)(x²)

-9y² = (-3y)(3y)

Combine:

(x²-3y)(x²+3y)

I need your help with dis math

Answers

Answer: C. 1/2

Step-by-step explanation:

The coefficient is the number being multiplied by q. The sum is the additive total. To add fractions, they need a common denominator.

2/3 = 4/6

Adding a negative is the same as subtracting.

4/6 + (-1/6) = 4/6 - 1/6 = 3/6 = 1/2

Hope this helps!

Identify the coefficient and the degree of each term of the polynomial. Then find t polynomial. 80x^(9)y^(2)-6x^(4)yz-8

Answers

The coefficient of the first term is 80, and the degree is 9; the coefficient of the second term is -6, and the degree is 4; the coefficient of the third term is -8, and the degree is 0. The polynomial is 80x^(9)y^(2)-6x^(4)yz-8.


The coefficient of a term in a polynomial is the number that is multiplied by the variable(s) in the term. The degree of a term is the sum of the exponents of the variables in the term.

In the first term, 80x^(9)y^(2), the coefficient is 80 and the degree is 9 + 2 = 11.

In the second term, -6x^(4)yz, the coefficient is -6 and the degree is 4 + 1 + 1 = 6.

In the third term, -8, the coefficient is -8 and the degree is 0 since there are no variables.

The polynomial is already in standard form, so there is no need to find the polynomial. It is simply 80x^(9)y^(2)-6x^(4)yz-8.

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Find out what X and Y equal.

x =

y =

Answers

The measures of the two interior angles are:

x = 62°

y = 118°

How to find the values of x and y?

We can see a cuadrilateral, if the sides are parallel like in this case, opposite interior angles have the same measure, then:

x = 62°

And we know that adjacent angles should add up to 180°, then:

y+ 62° = 180°

y = 180° - 62° = 118°

These are the measures of the two interior angles.

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HELP THIS IS DUE TOMORROW USE ANY STRATEGIE

Answers

Answer: See attached.

Step-by-step explanation:

     The first one is incorrect because this equation shows 5 / 2, not 2/5.

     The second one is correct. 7/4 = 7/4.

     The third one is also correct. 12/4 = 12/4.

     It can help to rewrite both sides of the equation in the same format to make it easier to compare.

PLEASE HELP I NEED THIS DUE FIR TMRRRRRRRRRRRR

Answers

A. Plug in the numbers

If there are 16 cups in one gallon how many cups are there in three gallons

Answers

Answer:

48 cups

Step-by-step explanation:

‐-------------------

consider the system obtained from the following augmented matrix
1 2 -1 4
0 -1 1 3
0 0 k^2-2k -3 k-3
for which values of k will the corresponding system be inconsistent

Answers

The values of k that make the system inconsistent are k = 0 and k = 2.

The system obtained from the given augmented matrix is:
```
1 2 -1 | 4
0 -1 1 | 3
0 0 k^2-2k | -3k-3
```
For the system to be inconsistent, the last equation must be a contradiction, meaning that the coefficients of the variables are all zero but the constant term is nonzero. In other words, we need `k^2-2k = 0` and `-3k-3 ≠ 0`.

Solving for k in the first equation, we get:
```
k^2-2k = 0
k(k-2) = 0
```
So k = 0 or k = 2.

However, we also need `-3k-3 ≠ 0`, which means that k ≠ -1. Therefore, the values of k that make the system inconsistent are k = 0 and k = 2.

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Select the correct answer. Which graph represents this equation? A. A parabola declines through (negative 4, 10), (negative 3, 4), (negative 2, 0), (negative 0 point 5, negative 4), (0, negative 6), (2, negative 8), (4, negative 6), (6, 0), (8, 10) on the x y coordinate plane. B. A parabola declines through (negative 12, 10), (negative 11, 8), (negative 10, 0), (negative 8, negative 6), (negative 4, negative 10), and rises through (0, negative 6), (2, 0) and (3, 6) on the x y coordinate plane. C. A parabola declines through (negative 3, 8), (negative 2, 0), (0, negative 6) and (4, negative 10) and rises through (8, negative 6), (10, 0) and (11, 6) on the x y coordinate plane. D. A parabola declines through (negative 8, 10), (negative 7, 4), (negative 6, 0), (negative 4 negative 6) and (negative 1, negative 8) and rises through (1, negative 4), (2, 0), (3, 4) and (4, 8) on the x y coordinate plane.

Answers

The graph of the quadratic function y = 1.5x² + 4x - 2 is given by the image shown at the end of the answer.

How to obtain a graph of a quadratic function?

The function for this given problem is defined as follows:

y = 1.5x² + 4x - 2.

a 1.5, b 4, c -2.

By Solving the equation we get these values,

x = -3.09, hence function passes through the point (-3.09, 0).

x = 0.43, hence function passes through the point (0.43, 0).

The y-intercept of this function is given by coefficient c = -2, hence the function also passes through the point (0, -2).

The x-coordinate vertex is given as follows:

x = -b/2a = -4/3 = -1.33.

Hence the y-coordinate vertex is of:

y = 1.5(-1.33)² + 4(-1.33) - 2 = -4.67.

Missing Information

The problem asks for the graph of the following function is given below:

y = 1.5x² + 4x - 2.

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find and explain the error in the work below. multiply: (2x-3)(6x+2)
2x(6x)+2x(2)-3(6x)+3(2)
12x^2+4x-18x+6
12x^2-14x+6
find and explain the error in the work for the given problem.

Answers

Step-by-step explanation:

the error happened in line 2 :

(2x - 3)(6x + 2)

= 2x6x + 2×2x - 3×6x - 3×2 (instead of +3×2)

the error was using the wrong sign for the term 3×2. it was created by -3 multiplied by +2 = -3×2.

FIND THE VALUE OR EXPRESSION FOR 0

Answer options
28
62
90 - y
55
35

Answers

The trigonometric ratios of sine and cosines indicates that we get;

θ = 35 degreesθ = 62 degreesθ = 90 - yWhat are trigonometric ratios?

Trigonometric ratios specify the relationship between two sides of a right triangle and the acute angle in the right triangle.

The specified equations are presented as follows;

1. sin(55) = cos(θ)

The sine of an angle is the ratio of the opposite side to the angle in a right to the hypotenuse side of the right triangle

The trigonometric ratio of the cosine of an angle is the ratio of the adjacent side to the angle to the hypotenuse side in a right triangle

The acute angles in a right triangle are complementary

Let A and B represent the acute angles of a right triangle, we get;

The adjacent side to the angle A is the opposite side to the angle B

The hypotenuse side remains the same, therefore;

cos(A) = sin(B), and sin(A) = cos(A)

Which indicates; sin(55) = cos(90 - 55) = cos(35)

sin(55) = cos(θ) = cos(35)

θ = 35

2. cos (28) = sin(90 - 28) = sin(62)

cos(28) = sin(62)

sin(θ) = sin(62) = cos(28)

θ = 62

3. cos(y) = sin(θ)

cos(y) = sin(90 - y)

cos(y) = sin(90 - y) = sin(θ)

90 - y = θ

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Let x be the smallest number which when added to 2000 makes the resulting number divisible by 12,16,18 and 21 the sum of the digits of x is

Answers

The sum of the digits of the number which when added to 2000 makes the resulting number divisible by 12,16,18 and 21 is 7

The smallest number which when added to 2000 makes the resulting number divisible by 12, 16, 18, and 21 is 312. The sum of the digits of x is 3 + 1 + 2 = 6.

To find the smallest number x that can be added to 2000 to make the resulting number divisible by 12, 16, 18, and 21, we need to find the least common multiple (LCM) of these numbers.

The LCM of 12, 16, 18, and 21 is 1008. Then we need to find the smallest multiple of 1008 that is greater than 2000. This is 1008 * 3 = 3024. The difference between 3024 and 2000 is 1024, so x = 1024.The sum of the digits of x is 1 + 0 + 2 + 4 = 7. Therefore, the sum of the digits of x is 7.

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What is the absolute deviant of 18, 13, 20, 14, 12, 6, 11, 5, 15, 10

Answers


For your dataset [18, 13, 20, 14, 12, 6, 11, 5, 15, 10], the mean is (18+13+20+14+12+6+11+5+15+10)/10 = 12.4.

The absolute deviations for each data point are [5.6, 0.6, 7.6, 1.6, 0.4 ,6.4 ,1.4 ,7.4 ,2.6 ,2.4].

Your friend, Tomato Head paid $17 for a shirt. This amount was 85% of the total amount
Tomato Head spent while shopping. How much money did Tomato Head spend?

Answers

Tomato head spent $20

17/x = 85/100
17x100=1700
1700/80=20
Your welcome

The deepest lake in the world is Lake Baikal, in Russia. It has a depth of 5369 ft.
Canada’s deepest lake is Great Slave Lake, named after the Slavey (Dene Tha) peoples
who live there. It is located in the Northwest Territories and has a depth of 2015 ft.
Quesnel Lake, south of Prince George, BC, is the deepest fjord lake in the world. It has
a depth of 506 m.
Compare as ratios, the depth of Quesnel Lake to the depth of Lake Baikal and the depth
of Quesnel Lake to the depth of Great Slave Lake. Give your answers as decimals
rounded to the nearest hundredth of a metre.

Step #1: Determine the ratio of Quesnel Lake : Lake Baikal. *Careful with units!*

Step #2: Determine the ratio of Quesnel Lake : Great Slake Lake. *Careful with units*

Answers

The response to the given question would be that As a result, when equation comparing their depths, Quesnel Lake is substantially shallower than Lake Baikal yet deeper than Great Slave Lake.

What is equation?

When two statements are connected by a mathematical equation, the equals sign (=) implies equality. An equation in algebra is a mathematical statement that proves the equivalence of two mathematical expressions. For instance, the equal sign separates the numbers in the equation 3x + 5 = 14. It is possible to determine the relationship between the two sentences on either side of a letter using a mathematical formula. The logo for the particular piece of software is frequently the same. as 2x - 4 = 2, for instance.  

From Quesnel Lake to Lake Baikal, the distance is 506 metres.

Lake Baikal is 5369 ft (or 1637.74 m) deep (one foot is equal to 0.3048 m).

Ratio of depths is 506 / 1637.74 0.31 (Depth of Quesnel Lake/Deep of Lake Baikal).

Around 31% of Lake Baikal's depth is in Quesnel Lake.

Great Slave Lake to Quesnel Lake: Quesnel Lake is 506 metres deep.

Great Slave Lake's depth is 2015 feet, or 614.18 metres (1 foot = 0.3048 m).

Ratio of depths is 506 / 614.18 0.82 (Depth of Quesnel Lake / Depth of Great Slave Lake).

Hence, Quesnel Lake's depth is equivalent to 82% of Great Slave Lake's depth.

As a result, when comparing their depths, Quesnel Lake is substantially shallower than Lake Baikal yet deeper than Great Slave Lake.

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the polynomial in factored form as a produ f(x)=12x^(5)+5x^(4)-39x^(3)+9x^(2)+19x-6

Answers

The polynomial in factored form as a product can be found by using the factor theorem and synthetic division. The factor theorem states that if f(a) = 0, then (x-a) is a factor of f(x). We can use synthetic division to find the factors of f(x)=12x^(5)+5x^(4)-39x^(3)+9x^(2)+19x-6.

First, we need to find a value of x that makes f(x) = 0. We can use the rational root theorem to find possible rational roots. The possible rational roots are ±1, ±2, ±3, ±6. We can use synthetic division to test these possible roots.

Using synthetic division with x = 1, we get a remainder of -1, so x = 1 is not a root. Using synthetic division with x = -1, we get a remainder of 0, so x = -1 is a root and (x+1) is a factor of f(x).

Now we can divide f(x) by (x+1) using synthetic division to get the quotient 12x^(4)-7x^(3)-32x^(2)+41x-6. We can repeat the process of finding possible rational roots and using synthetic division to find the factors of this quotient.

The possible rational roots of the quotient are ±1, ±2, ±3, ±6. Using synthetic division with x = 1, we get a remainder of 8, so x = 1 is not a root. Using synthetic division with x = -1, we get a remainder of 0, so x = -1 is a root and (x+1) is a factor of the quotient.

We can divide the quotient by (x+1) using synthetic division to get the new quotient 12x^(3)-19x^(2)-13x+6. We can repeat the process of finding possible rational roots and using synthetic division to find the factors of this new quotient.

The possible rational roots of the new quotient are ±1, ±2, ±3, ±6. Using synthetic division with x = 1, we get a remainder of -14, so x = 1 is not a root. Using synthetic division with x = -1, we get a remainder of 0, so x = -1 is a root and (x+1) is a factor of the new quotient.

We can divide the new quotient by (x+1) using synthetic division to get the new quotient 12x^(2)-31x+6. We can repeat the process of finding possible rational roots and using synthetic division to find the factors of this new quotient.

The possible rational roots of the new quotient are ±1, ±2, ±3, ±6. Using synthetic division with x = 1, we get a remainder of -13, so x = 1 is not a root. Using synthetic division with x = -1, we get a remainder of 49, so x = -1 is not a root. Using synthetic division with x = 2, we get a remainder of 0, so x = 2 is a root and (x-2) is a factor of the new quotient.

We can divide the new quotient by (x-2) using synthetic division to get the new quotient 12x-3. This quotient cannot be factored further, so the factors of f(x) are (x+1)(x+1)(x+1)(x-2)(12x-3).

Therefore, the polynomial in factored form as a product is f(x) = (x+1)(x+1)(x+1)(x-2)(12x-3).

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216,777777 to 2 decimal places​

Answers

The round-off of the number 216,777777 to 2 decimal places​ is 216.78.

What is the rounding off to the number?

When a number is rounded off, its value is preserved while it is moved closer to the next number. simplifying the number. It is done for whole numbers as well as decimals at different places of hundreds, tens, tenths, and so on.

A number can be rounded off to its lower value if the number after the decimal is between 0 and 4. If the number after it is between 5 and 9, it will be rounded up to its higher value.

To round 216,777777 to 2 decimal places, we look at the third decimal place, which is 7. Since 7 is greater than or equal to 5, we round up the second decimal place, which is 7. Therefore, 216,777777 rounded to 2 decimal places is 216,78.

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Please help!! Math inequalities. I have freebies you can answer after this in my 'questions'
An inequality is shown.
Select the statement(s) and number line(s) that can represent the inequality. Click all that apply.

Answers

The solution set is {6, 7, 8, …} for x ∈ N and the value of a number substituted for x is greater than 6.

What is inequality?

An inequality is a relation that compares two numbers or other mathematical expressions in an unequal way. The majority of the time, size comparisons between two numbers on the number line are made.

Here, we have

Given: Inequality:

12+11/6x ≤  5+3x

We have to determine the statement(s) and number line(s) that can represent the inequality.

12+11/6x ≤  5+3x

12(6x) + 11 ≤  6x(5+3x)

72x +132 ≤ 30x + 18x²

42x + 132 ≤ 18x²

7x + 22x ≤  3x²

we concluded that the value of a number substituted for x is greater than 6.; b. The solution set is {6, 7, 8, …} for x ∈ N." These are the statements and number lines that can represent inequality.

Hence, the solution set is {6, 7, 8, …} for x ∈ N, and the value of a number substituted for x is greater than 6.

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PLEASEEEEE HELPPPP PLEASEEE

Answers

Minimum - 2

First Quartile - 4

Median - 8

Third Quartile - 13

Maximum - 15

The question is in the screenshot:

Answers

Answer:

13

Step-by-step explanation:

First drop the line.

How many units is it from Point [tex]r[/tex] to the x axis?

12.

How many units is it from Point [tex]r[/tex] to the y axis?

5.

Now we can use the Pythagorean Theorem.

[tex]12^5+5^2=c^2[/tex]

[tex]144+25=c^2[/tex]

[tex]c^2=169[/tex]

[tex]c=13[/tex]

plssssssss help, Geometry

Answers

Answer:

2 tangents

with common points p and O touching both the circles only 2 tangets can be drawn

HELP ASAP

The hypotenuse of a right triangle measures 2√15 centimeters and its shorter leg measures 2√6
centimeters. What is the measure of the larger acute angle of the triangle? Round your answer to the nearest tenth of a degree.

Answers

Answer: Let's use the trigonometric ratio of sine to find the measure of the larger acute angle of the right triangle. We have:

sin(theta) = opposite / hypotenuse

where theta is the measure of the larger acute angle, and opposite is the length of the shorter leg of the right triangle. Substituting the given values, we get:

sin(theta) = 2sqrt(6) / 2sqrt(15)

          = sqrt(2/5)

Using a calculator, we can find the value of theta to the nearest tenth of a degree:

theta = arcsin(sqrt(2/5))

     ≈ 38.2°

Therefore, the measure of the larger acute angle of the right triangle is approximately 38.2 degrees.

Step-by-step explanation:

Complete the table to find the unit rate.
The table shows the number of students and teachers.
Teachers |
5
10
15
20
Students
130
390
A
The unit rate is
students per teacher.
If there are 17 teachers, how many students are there?

Answers

There will be 663 pupils if there are 17 instructors.

What does maths for students mean?

The discipline and study of character, structure, area, and change is mathematics. Mathematicians use rigorous deduction from carefully selected axioms and definitions to look for patterns, make new hypotheses, and establish the veracity of their findings.

Teachers Students

5                   130

10                   390

15                   585

20                   780

To find the unit rate, we need to divide the number of students by the number of teachers. For example, for the first row, the unit rate would be:

Unit rate = students/teachers = 130/5 = 26 students per teacher

We can repeat this calculation for each row:

For the second row, the unit rate is 390/10 = 39 students per teacher.

For the third row, the unit rate is 585/15 = 39 students per teacher (same as the previous row).

For the fourth row, the unit rate is 780/20 = 39 students per teacher (again, the same as the previous rows).

So, the unit rate is 39 students per teacher.

If there are 17 teachers, we can use the unit rate to find the number of students:

Number of students = unit rate x number of teachers

Number of students = 39 x 17 = 663

Therefore, if there are 17 teachers, there are 663 students.

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Lester paid $31.00 for 5 pens and 4 books altogether . A book cost $1.00 more than a pen .Stephan bought 6 pens and 3 books at the same price . How much will Stephan pay

Answers

Stephan will pay 30$

Given the impact of television on children’s attitudes and behavior, an important concern of behavioral scientists is the amount of time that children of various ages spend watching television. The following data are representative of weekly viewing time (in hours) of a sample of 12-year-olds:
15, 10, 7, 24, 22, 12, 17, 10, 21, 23, 26, 21
a) Calculate the three measures of central tendency (averages) for these data. (15 points)
b) Calculate the range, interquartile range, variance and standard deviation for these data. Use the definition formula for calculating the SS for the variance and standard deviation,(15 points

Answers

a) The three measures of central tendency are the 18 (mean), 14.5 (median, and 10 and 21 (mode).

(b) The range, interquartile range, variance and standard deviation for these data is 19, 12, 39.636, and 6.296, respectively.

(a) The three measures of central tendency are the mean, median, and mode.

Mean: (15 + 10 + 7 + 24 + 22 + 12 + 17 + 10 + 21 + 23 + 26 + 21)/12 = 18

Median: (12 + 17)/2 = 14.5

Mode: 10 and 21 (both appear twice in the data set)

b) Range: 26 - 7 = 19

Interquartile Range: Q3 - Q1 = 22 - 10 = 12

Variance: SS/11 = (15-18)² + (10-18)² + (7-18)² + (24-18)² + (22-18)² + (12-18)² + (17-18)² + (10-18)² + (21-18)² + (23-18)² + (26-18)² + (21-18)² / 11 = 39.636

Standard Deviation: √39.636 = 6.296

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7. Solve the radical equations: (a)x2+3​=x+4(b)2x−1​−x−4​=2

Answers

a. The equation "(a) x2+3​=x+4" gives the solution as x = 1.

b. The equation "(b) 2x-1​-x-4=2" gives the solution as x = -1.

To solve these radical equations, we will need to isolate the radical on one side of the equation and then square both sides to get rid of the radical. After that, we can solve for x using standard algebraic methods.

(a) x2+3​=x+4


First, we will isolate the radical on one side of the equation:
x2+3​=x+4
x2=x+4-3
x2=x+1


Now, we will square both sides of the equation to get rid of the radical:
(x2)2=(x+1)2
x4=x2+2x+1


Next, we will rearrange the equation and set it equal to zero:
x4-x2-2x-1=0


Now, we can use the quadratic formula to solve for x:
x=(-(-2)±√((-2)2-4(1)(-1)))/(2(1))
x=(2±√(4+4))/(2)
x=(2±√8)/(2)
x=(2±2√2)/(2)
x=1±√2


So, the solutions for x are 1+√2 and 1-√2.

(b) 2x−1​−x−4​=2


First, we will isolate the radical on one side of the equation:
2x−1​=x−4+2
2x−1​=x−2


Now, we will square both sides of the equation to get rid of the radical:
(2x−1)2=(x−2)2
4x2-4x+1=x2-4x+4


Next, we will rearrange the equation and set it equal to zero:
3x2=3


Now, we can solve for x by dividing both sides of the equation by 3 and taking the square root:
x2=1
x=±√1
x=±1


So, the solutions for x are 1 and -1.

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9 = ? − 30..................................................................................................

Answers

Answer:  39

Step-by-step explanation:   9 = ? - 30, add 30 on both sides you get 39=?

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