Pls help my grades are bad

Answer:

area of the rectangle will be 175 square feet

Answer:

A is the answer

Step-by-step explanation:

Here is one way     pick two easy points  (-4,0) and  (0,-3)

  and sub into each of the equations until you find the one that 'fits'

Answer:

(x + 2)

Step-by-step explanation:

x² - 8x - 20

consider the factors of the constant term (- 20) which sum to give the coefficient of the x- term (- 8)

the factors are - 10 and + 2 , since

- 10 × + 2 = - 20 and - 10 + 2 = - 8 , then

x² - 8x - 20 = (x - 10)(x + 2)

Answer:

(×+ 2)

Step-by-step explanation:

just did that trust me

Answer:  [tex]\sqrt{14}[/tex]

Work Shown:

[tex]\text{x} = \text{geometric mean of A and B}\\\\\text{x} = \sqrt{A*B}\\\\\text{x} = \sqrt{2*7}\\\\\text{x} = \sqrt{14}\\\\[/tex]

Answer: 26 + 13 + 26 + 13 + x =180

Step-by-step explanation:

Answer:

m<1=32

Step-by-step explanation:

Just do 102-38÷2 to get the measure

Answer:

X = 10

Step-by-step explanation:

Since 2x = 20

we can divide 2 from both sides giving us x = 20/2

Therefore , x = 10 because 20 divided by 2 is 10

Answer:

X= 10

Step-by-step explanation:

2X=20

Then Divide both sides by 2 in order to find the value of X

2X/2=20/2

X= 10

Answer:

231

Step-by-step explanation:

The pattern is add 6. But it is more easier to use the linear function: 6x+9. Since this starts with 0, we plug in 37 for x instead of 38.

Answer:

y = x^2 + 3x - 18

Step-by-step explanation:

A parabola with zeroes at  x = - 6  and 3  would look like this:

(x+6)(x-3) = x^2 + 3x -18

Answer: l08

Step-by-step explanation: It's becuase 36 x 3 is 108

Answer:

Step-by-step explanation:

Given equation

Simplify it to get

We have both sides equal, if we simplify further it will result in correct equation

Regardless the value of m, the equation remains correct. It means it has infinite solutions

Correct choice is D

Both sides are equal equation has infinite solutions

Answer:

Assuming you mean e to the power of 3/2, your answer should be 4.5. (4.482 rounded to the tenth.)

Step-by-step explanation:

"e" is simply 10 with an exponent. "e" to the power of 3/2 means [tex]10^{3/2}[/tex].

Plugging this in comes up with approximately 4.482 which can be rounded to 4.5.

Answer:

4.5

Step-by-step explanation:

Answer:

145600000

Step-by-step explanation:

Please mark as branliest !

Answer:

The area of the rectangle is 24.

Step-by-step explanation:

To find the area it is Legth x Width

Therefore, 4 * 6 is 24

Answer:

Answer is D. [tex]\frac{121}{49}a^8b^2[/tex]

Step-by-step explanation:

We expand the powers.

[tex]\frac{11}{7}^2*(a^4)^2*(b)^2\\\frac{11}{7}*\frac{11}{7}*(a^4)(a^4)*(b*b)\\\frac{121}{49}*(a^8)*(b^2)[/tex]

when doing variable power you add them together.

a^4*a^4=a^(4+4) , b^1*b^1=b^(1+1)

Answer:

n

=

1

→

a

1

=

−

2

←

given value

n

=

2

→

a

2

=

−

2

+

4

=

2

n

=

3

→

a

3

=

−

2

+

4

+

4

=

6

n

=

4

→

a

4

=

−

2

+

4

+

4

+

4

=

10

Step-by-step explanation:

brainlist me

Answer:

No, it will quadruple.

Step-by-step explanation:

If a figure is scaled up by some amount x(by multiplying), while still being the same shape, the surface area will scale up by x^2, and the volume will scale up by x^3.

Answer(s):

What is the dependent variable of an equation?

The dependent variable of an equation is the variable that is completely isolated on one side.

What is the independent variable of an equation?

The independent variable is the variable that is not isolated. The independent variable can either have a cooeficient or has some operation (+ - × ÷) included on that side of the equation.

Determining the independent and dependent variable

In this equation, we can see that "v" is completely isolated on one side and "t" has a cooeficient of 68. Thus, the dependent variable is "v" and the independent variable is "t".

The Probability of red light is 0.3

P(red) = 0.3

The probability that out of the next eight eastbound cars that arrive randomly at the light, exactly three will be stopped by a red light be 0.25.

P(exactly three get stopped by red light)=0.25

The correct option is (d) P(red)=.3,P(exactly 3 get stopped)=.25

A binomial distribution can be thought of as simply the probability of a SUCCESS or FAILURE outcome in an experiment or survey that is repeated multiple times.

The occurrence,

p= probability of a red light

 =[tex]\frac{15}{15+5+30}[/tex]

 = [tex]\frac{15}{50}[/tex]

 = 0.3

Hence, Probability of getting red light be,

P (red)= 0.3

Now, the Binomial distribution formula,

Probability=( [tex]_r^nC[/tex])[tex]\;p^{r} \;q^{n-r}[/tex]

where, r = number of times for a specific outcome within n trials

[tex]_r^nC[/tex]   = number of combinations

p = probability of success on a single trial

q = probability of failure on a single trial

n = number of trial

According to question,

          = 1- 0.3

          = 0.7

Now using the formula, ( [tex]_r^nC[/tex])[tex]\;p^{r} \;q^{n-r}[/tex]

P( exactly 3  get stopped) = ( [tex]_3^8C[/tex])[tex]\;(0.3)^{3} \;(0.7)^{8-3}[/tex]

                                            = [tex]\frac{8!}{3!(8-3)!}[/tex] [tex](0.027) \; (0.7)^{5}[/tex]

                                           =  [tex]\frac{8!}{3!(5)!}[/tex][tex](0.027) \; (0.16807)[/tex]

                                           = [tex]\frac{8 * 7 * 6 }{3 * 2}[/tex] x 0.027 x 0.16807

                                           = 56 x 0.00453789

                                           = 0.25412184

                                          ≈ 0.25

Hence, Probability of next eight eastbound so that exactly three will stopped by a red light be 0.25.

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To find the average number of pages the student read from day 2 to day 6, add the total pages in these days and divide by 5 days.

This is a very common word used in mathematics and stadistics to refer to the mean value in a set of values.

Add the pages the person read these days and then divide by 5 (total of days).

For example:

35 + 45 + 10 +25 + 20 = 135 / 5 = 27 pages

Note: This question is incomplete because the table is missing; due to this, the answer is based on general knowledge.

Learn more about average in: https://brainly.com/question/2426692

Answer:

Brand A is the better deal!

Step-by-step explanation:

Let's start by comparing.

We know brand B has the following cost: 5 ounces = $3.75

10 ounces $7.50 and 16 ounces = $12

Now check the graph.

6 ounces cost $3

12 ounces cost $6

20 ounces cost $10

I don't think we need to look any further but brand A is the better deal!

The answer will be option A Yes, the test value is in the rejection region.

A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of values.

here the formula will be

[tex]Z=\dfrac{X-\mu}{\dfrac{\sigma}{\sqrt {n}}}[/tex]

[tex]Z=\dfrac{100-110}{\dfrac{5}{\sqrt{100}}}[/tex]

[tex]Z=-20[/tex]

Z critical value =-1.645

Z calculated> Z critical value so we will reject.

Hence the answer will be option A Yes, the test value is in the rejection region.

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Answer:

%70

Step-by-step explanation:

percentage can be found by dividing the values than multiplying the values by 100

Formula: (value/totalvalue)100

plug in the formula with what we have;

28/40(100)

→ First step; dividing our value by total value (28/40)

28/40 = 0.7

  → Second step; multiplying our value by 100 (0.7)

0.7 * 100 = 70

Therefore cora got %70 correct on her grammar sheet

Answer:

70% correct

Step-by-step explanation:

We know that there are 40 questions on her grammar worksheet.

Out of those 40 questions, she got 28 right so 28/40 equals 0.7

Answer:

i will give it to you

Step-by-step explanation:

that's it for you dear

The relationship between food purchased and food eaten by dogs can be written as, 162 biscuits ≥ 80 biscuits

The fundamental concept of repeatedly adding the same number is represented by the process of multiplication. The results of multiplying two or more numbers are known as the product of those numbers, and the components that are multiplied are referred to as the factors.

First, let's calculate the total number of dog biscuits that Jim has bought:

= 6 bags × 27 biscuits per bag

= 162 biscuits

Next, let's calculate how many biscuits the dog will eat in 4 weeks:

= 4 weeks × 5 biscuits per day

= 20 biscuits per week

20 biscuits per week × 4 weeks = 80 biscuits

So, Jim has bought 162 biscuits and his dog will eat 80 biscuits in 4 weeks. This means that Jim has brought enough dog biscuits for his dog for 4 weeks.

162 biscuits ≥ 80 biscuits

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[tex]\qquad\qquad\huge\underline{\boxed{\sf Answer}}[/tex]

Let's evaluate ~

[tex]\qquad \tt \dashrightarrow \:6 \frac{5}{8} + 4 \frac{3}{4} [/tex]

[tex]\qquad \tt \dashrightarrow \: \frac{53}{8} + \frac{19}{4} [/tex]

[tex]\qquad \tt \dashrightarrow \: \frac{53 + 38}{8} [/tex]

[tex]\qquad \tt \dashrightarrow \: \frac{91}{8} [/tex]

[tex]\qquad \tt \dashrightarrow \: 11\frac{3}{8} [/tex]

[tex]6 \frac{5}{8} + 4 \frac{3}{4} [/tex]

the simplest form.

[tex] \frac{53}{8} + \frac{19}{4} [/tex]

[tex] = \frac{(53 \times 4) + (19 \times 8)}{8 \times 4} [/tex]

[tex] = \frac{212 + 152}{32} [/tex]

[tex] = \frac{364}{32} [/tex]

[tex] = 11 \frac{3}{8} [/tex]

Answer:

Option A :- [tex] \sf {a}^{\frac{1}{12}} [/tex]

Step-by-step explanation:

[tex] \hookrightarrow \sf \: \frac{ {a}^{ \frac{1}{3} } }{ {a}^{ \frac{1}{4} } } [/tex]

Simplify the expression

[tex] \hookrightarrow \sf \: {a}^{ \frac{1}{3} - \frac{1}{4} }[/tex]

Transform the Expression

[tex] \hookrightarrow \sf \: {a}^{ \frac{4 - 3}{12} }[/tex]

Calculate

[tex] \hookrightarrow \sf {a}^{\frac{1}{12}} [/tex]

Answer:

Option A

Step-by-step explanation:

Exponent Law: In exponent division, if base are same, subtract the powers

[tex]\sf \dfrac{a^m}{a^n}=a^{m-n}[/tex]

[tex]\sf \dfrac{1}{3}-\dfrac{1}{4}=\dfrac{1*4}{3*4}-\dfrac{1*3}{4*3}[/tex]

          [tex]\sf =\dfrac{4}{12}-\dfrac{3}{12}\\\\=\dfrac{1}{12}[/tex]

[tex]\sf \dfrac{a^{\frac{1}{3}}}{a^{\frac{1}{4}}}=a^{\frac{1}{3}-\frac{1}{4}}[/tex]

     [tex]=a^{\frac{1}{12}}[/tex]

Answer:

67.5 kg

Step-by-step explanation:

To determine the weight of 45 books, we need to determine the weight of one book, using the equation (30 books = 45 kg). This can be done by dividing 30 to both sides of the equation. Therefore,

We obtained the following equation;

Now, multiply both sides by 45 to determine the weight of 45 books.

Therefore, the weight of 45 books is 67.5 kg.

Answer:

[tex]\huge\boxed{\bf{45books = 67.5kg}} [/tex]

Step-by-step explanation:

Given:-

To find:-

Ans:-

30books = 45kg

45books = y kg

Let's find 45 books (y)

[tex]\sf \to \frac{30}{45} = \frac{45}{y}[/tex]

[tex]\sf \to 45*45 = 30*y[/tex]

[tex]\sf \to 2,025 = 30*y[/tex]

[tex]\sf \to y = \frac{2,025}{30}[/tex]

[tex]\sf \to y = 67.5kg[/tex]

~therefore 45books = 67.5kg

[tex]\:[/tex]

[tex]\huge\colorbox{red}{BlackPain}[/tex]

The formula which can be used to find the centripetal acceleration is:

ac = startfraction v superscript 2 baseline over r endfraction

This is simply the acceleration of an object moving in a circulation motion.

The centripetal acceleration can be expressed mathematically as

a꜀ = v² / r

Where

With the above formula, we can conclude that the correct answer to the question is:

ac = startfraction v superscript 2 baseline over r endfraction

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Answer:

(c)

Step-by-step explanation:

I took the test

Answer:

Slope-Intercept Form: [tex]y = 2*x -3[/tex]

or

Point-intercept form: [tex]y-(-3)=2(x-0)[/tex]

Step-by-step explanation:

Slope-Intercept Form: [tex]y=mx+b[/tex]

Start from the Y-axis where [tex]b=-3[/tex] then rise/run to the next point. making that our slope.

Point-intercept form: [tex]y-y_0=m(x-x_0)[/tex]

Solve the slope using the two points.

[tex](0,-3)[/tex] and [tex](2,1)[/tex] plug those values into the formula. Make [tex](x,y)=(0,-3)[/tex] and [tex](x_0,y_0)=(2,1)[/tex]

[tex]-3-1=m(0-2)[/tex]

[tex]-4=m(-2)[/tex]

[tex]m=-2[/tex]

[tex]y-(-3)=-2(x-0)[/tex]