If a = -3, find the value of (the 2 on b and c is squared) a) 2a b) a2 c) 3a2​

Answers

Answer 1

Answer:

4, -4, 36

Step-by-step explanation:

a) a*2 = -2*-2 = 4

b) a^2 = -2^2 = -4

c) a*3^2= 3*-2^2 = -36


Related Questions

Consider the functions p(x) = 5x3 + 6x2 + 4x and qx) = 5640.
-
1. Use graphing technology to find a value of that makes p(x) = q() true.

Answers

In order to make p(x) = q(x) true, x would have to equal 181.935

Graphing technology used in image below

What does 2-for-1 split mean

Answers

Answer:

you two shares for every one share of a company you own

Step-by-step explanation:

On Mrs. Sean's desk,
there are pink and yellow
markers. The ratio of pink
markers to total markers
is 1:3. If there are 16
yellow markers, then how
many markershare pink?

Answers

Since the ratio of pink markers to total markers is 1:3, then there are 8 pink markers.

Number of yellow markers given = 16

Based on the information given, therefore, the pink markers will be half of the yellow markers. This will be:

= 1/2 × 16

= 8 markers

Therefore, the total markers will be:

= 8 + 16 = 24

In conclusion, pink markers will be 8/24 = 1/3. Therefore, the number of pink markers is 8.

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[tex] \sqrt{5.29} = [/tex]
a) 2.3
b) 2.4
c) 2.5
d) 2.6​

Answers

Answer:

2.3

Step-by-step explanation:

In this case we are going to use the 'Babylonian Method' to get the square root of any positive number.

We must set an error for the final result. Say, smaller than 0.01. In other words we will try to find the square root value with at least 1 correct decimal places.

Step 1:

Divide the number (5.29) by 2 to get the first guess for the square root .

First guess = 5.29/2 = 2.645.

Step 2:

Divide 5.29 by the previous result. d = 5.29/2.645 = 2.

Average this value (d) with that of step 1: (2 + 2.645)/2 = 2.3225 (new guess).

Error = new guess - previous value = 2.645 - 2.3225 = 0.3225.

0.3225 > 0.01. As error > accuracy, we repeat this step again.

Step 3:

Divide 5.29 by the previous result. d = 5.29/2.3225 = 2.2777179763.

Average this value (d) with that of step 2: (2.2777179763 + 2.3225)/2 = 2.3001089882 (new guess).

Error = new guess - previous value = 2.3225 - 2.3001089882 = 0.0223910118.

0.0223910118 > 0.01. As error > accuracy, we repeat this step again.

Step 4:

Divide 5.29 by the previous result. d = 5.29/2.3001089882 = 2.299891017.

Average this value (d) with that of step 3: (2.299891017 + 2.3001089882)/2 = 2.3000000026 (new guess).

Error = new guess - previous value = 2.3001089882 - 2.3000000026 = 0.0001089856.

0.0001089856 <= 0.01. As error <= accuracy, we stop the iterations and use 2.3000000026 as the square root.

So, we can say that the square root of 5.29 is 2.3 with an error smaller than 0.01 (in fact the error is 0.0001089856). this means that the first 3 decimal places are correct. Just to compare, the returned value by using the javascript function 'Math.sqrt(5.29)' is 2.3.

Note: There are other ways to calculate square roots. This is only one of them.

Normal:

The square root of 5.29 is defined as the only positive real number such that, multiplied by itself, it is equal to 2.3.

The square root of 5.29 can be written as (5.29)1/2. So,

(5.29)1/2 = (2.3 × 2.3)1/2

(5.29)1/2 = [(2.3)2]1/2

(5.29)1/2 = (2.3)2/2

(5.29)1/2 = (2.3)1

Thus,

√5.29 = 2.3

When a 3-digit number is rounded to the nearest ten and the nearest hundred, the difference is 50. What is the number?

Answers

Answer: 150?

Step-by-step explanation:

150 -> 200 200-150=50

150-> 150 200-150=50

Please need it fast will give brainliest At 5:00 A.M. the temperature in Phoenix, Arizona, was already 80°F. By 3:00 P.M. the
temperature had risen to 97°F. What is the difference in the temperatures?

Answers

Answer:

The difference is 17 degrees.

Step-by-step explanation:

You want to take your final temperature which in this case is 97°F, and then subtract it from the starting temperature which is 80°F. Doing this will help you find your difference.

97-80 = 17°F

I hope this helps! :)

The first day of Sam's vacation was a Monday.
What was the day of the week on Sam's 36
day of vacation?

Answers

Answer:

I think it was monday also

Answer:

The day of the week on Sam's 36th

day of vacation would be Tuesday.

please help me with this sum​

Answers

Step-by-step explanation:

2667

1884

1953

782

2046

3105

8559

5368

963

3367

Answer:

381 x 7 = 2667

471 x 4 = 1884

651 x 3 = 1971

391 x 3 = 1173

341 x 6 = 2046

Hope its help full

The ratio of the height of an object in a photograph to the actual height is 1:200. The height of a statue in the photograph is 5 cm. How tall is the statue?

Answers

Answer:

1,000 cm

Step-by-step explanation:

5 x 200 = 1000

If f(x)=3x-2 and g(x)=2x+1, find (f+g)(x)

A. 5x - 3
B. x - 3
C. x - 1
D. 5x - 1

brainliest for help!!

Answers

Answer:

D. 5x - 1

Step-by-step explanation:

To solve this, you need to add together f(x) and g(x)

f(x) + g(x) = (3x - 2) + (2x + 1)

3x + 2x = 5x

-2 + 1 = -1

The answer is 5x - 1

rewrite 5% as a decimal number

Answers

Answer:

5% as a decimal number is 0.05.

What are the terms in the expression 2d + 7 + 5f?

ASAP

2 and 5

d and f

2d, 7, and 5f

2, 7, and 5

Answers

2d, 7, and 5f i hope this helps

Answer:2d,7,and 5f

Step-by-step explanation:

Find the Area of the figure below, composed of a rectangle with a semicircle removed from it. Round to the nearest tenths place.

Answers

The required area of the figure is 100.75 units².

What is area?

Area of an object shows that how much space it can cover.

Given is figure, made by scooping out a semicircle from a rectangle of length 14 units and width 10 units,

We need to find the area of the figure,

To find the same, we will find the area of whole rectangle and then subtract the area of the semicircle from it,

Area of a rectangle = length × width = 14 × 10 = 140 units²

Area of a semicircle = π × radius² / 2

Here the diameter of the semicircle will be the width of the rectangle,

So,

Diameter = 10

Radius = 5

Area of a semicircle = 3.14 × 25/2 = 39.25 units²

Now,

The area of the figure = 140 - 39.25 = 100.75 units²

Hence, the required area of the figure is 100.75 units².

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<1 and <2 are complementary. Solve for the measure of <1.

<1 = 12x + 4
<2 = 9x + 2

A. 52
B. 4
C. 38
D. 8.3

Answers

I think it’s letter b 4

What methods do you know that can be used to solve a quadratic equation?

Answers

Answer: If the quadratic equation has real, rational solutions, the quickest way to solve it is often to factorise into the form (px + q)(mx + n), where m, n, p and q are integers. This is especially true where the coefficient of x2 is 1.

Example 1 - Solve x2+7x+12=0

Step-by-step explanation:

that's the only one I remember

Answer:

factoring, using the square roots, completing the square and the quadratic formula.

Step-by-step explanation:

Evaluate.
plz help
12⋅(14+13)2+23

Enter your answer as a mixed number in simplest form by filling in the boxes.

Answers

Answer:

52

Step-by-step explanation:

14+13= 27+2=29+23=52

The value of the numerical expression 12 ⋅ (14 + 13)² + 23 will be 8771.

What is the value of the expression?

When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.

The expression is given below.

⇒ 12 ⋅ (14 + 13)² + 23

Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction are all part of the PEMDAS formula. To answer the problem properly and accurately, this rule must be followed.

⇒ 12 ⋅ (14 + 13)² + 23

⇒ 12 ⋅ (27)² + 23

⇒ 12 ⋅ 729 + 23

⇒ 8748 + 23

⇒ 8771

The value of the numerical expression 12 ⋅ (14 + 13)² + 23 will be 8771.

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Find the unit price in dollars per ounce).
A 24-ounce can of pineapple for $1.08
PLS PLS HELPME ASAP

Answers

Answer:

$0.05 per ounce

Step-by-step explanation:

To find the price in dollars per ounce, divide the price by the number of ounces.

[tex]\frac{1.08}{24}[/tex] = $0.045 per ounce = $0.05 per ounce

what should she do next?

Answers

Answer:

(-2) *6 = -12

Step-by-step explanation:

4 + (2-4) *6 , solve the subtraction in parenthesis

4 + (-2)*6, solve the multiplication of (-2) *6

4 - 12, solve the subtraction

-8

pls help i am in k12
Refer to the equation 2x − 6y = 12.

Write the equation in Slope Intercept Form.






Find the x-intercept and the y-intercept?





Create a table of values for 4 points. You can include the intercepts. Show your work.


X

Y

Answers

Answer:

(Hope this helps can I pls have brainlist (crown)☺️)

Step-by-step explanation:

To find the x-intercept, substitute in  0  for  y yand solve for  x . To find the y-intercept, substitute in  0  for  x and solve for  y .

x-intercept(s):  ( 6 , 0 )

y-intercept(s):  ( 0 , − 2 )

Use the slope-intercept form  y = m x + b to find the slope  m and y-intercept  b .

Slope: [tex]\frac{1}{3}[/tex]

graph in pic

(Credit: M a t h w a y)

what is the length of segment XZ?
192
12
8
144

Answers

Answer:

12 is the length of XZ

Step-by-step explanation:

Pythagorean Theorem Formula: a² + b² = hypotenuse²

x² + 5² = 13²

x² + 25 = 169

x² + 25 - 25 = 169 - 25 (subtract 25 in both sides)

x² = 169 - 25

√x² = √144

x = 12

2xy-yz=8 solve for z

Answers

The answer is: z = -8/y + 2x

The solution of the equation in terms of z will be; z = 2x - 8/y

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

A mathematical equation is a statement with two equal sides and an equal sign in between. An equation is, for instance, 4 + 6 = 10. Both 4 + 6 and 10 can be seen on the left and right sides of the equal sign, respectively.

We are given the equation as;

2xy-yz=8

Now we have to solve for z;

2xy-yz=8

-yz = 8 - 2xy

Then divide by y on both sides;

z = 2xy/y - 8 / y

z = 2x - 8/y

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5x + 2 = 3x + 4(2x - 1)

show steps

Answers

Answer:

x=1

Step-by-step explanation:

5x+2=3x+4(2x-1)

5x+2=3x+8x-4

5x+2=11x-4

5x-11x=-4-2

-6x=-6

6x=6

x=1

Which statement is true about the expressions below?

Answers

Is there a attachment because I don’t see anything

Place the <,> or = symbols between the following:
A) 4/3 ? 2/3
B) 4/3 ? 80%
C.) 3/4 ? 65%
D.) 4/8 ? 50 %

Please help

Answers

The choice A will be the correct choice dealing with proportion

How much of the circle is shaded? Write your answer as a fraction in simplest form.

Answers

Answer:

3/8\

Step-by-step explanation:

you do one half minus one eight and you get 3/8

the sum of three consecutive even integers if the largest number is y

Answers

Answer:

y

Step-by-step explanation:

4y=6 sorry thats all i know

Can I get help with 1C please?

Answers

Answer:

14

Step-by-step explanation:

A cylinder with a radius of 10ft has a volume of 2, 198.0013
What is the height of the cylinder

Answers

Answer:

~7 ft

Step-by-step explanation:

2,198.0013 = pi × 10^2 × h

h = 2198.0013 / (3.1416 × 100)

h = 6.996 ft ~ 7 ft

Cookies are on sale! Today each cookie costs $0.75 less than the normal price, Right now if you buy 7 of
them it will only cost you $2.80
Write an equation to determine the normal price of each cookie (c),
Find the normal price of each cookie,

Answers

Answer:

2.80$ dived by 7 to get 40 cents each on sale. add 75 sents to each cookie. 40 plus 75 in cents. your left with 1.15$ per cookie. 1.15 times 7 is 8.05

Step-by-step explanation:

Answer:

The normal price of each cookie is n = c = $1.15.

Step-by-step explanation:

Represent the normal cookie price by n.

Then the sale price today is n - $0.75 each, and so 7 cookies will cost you 7(n - $0.75), or $2.80, or, as an equation, 7(n - $0.75), or $2.80.

We simplify this equation by dividing both sides by 7, which results in:

n - $0.75n = $0.40.

Combining like terms, we get

n = $1.15

The normal price of each cookie is n = c = $1.15.

STEP By Step Explaination needed
NO sp.am
No Go.ogle
Solve it
[tex]\frac{5}{11} + \frac{3}{11} [/tex]

Answers

Answer:

8/11

Step-by-step explanation:

5+3=8

Answer:

[tex]\sf\huge\longmapsto \: \frac{8}{11} [/tex]

Step-by-step explanation:

[tex]\sf\huge\longmapsto \: \: \frac{5}{11} + \frac{3}{11} [/tex]

[tex]\sf\huge\longmapsto \: \frac{5 + 3}{11} [/tex]

[tex]\sf\huge\longmapsto \: \frac{8}{11} [/tex]

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