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zmey [24]
3 years ago
11

4(a + 2) = -4 whats A

Mathematics
2 answers:
OLga [1]3 years ago
4 0
The answer is -3 because -3+2=-1 then -1(4)=-4
weeeeeb [17]3 years ago
3 0

Answer:

Step-by-step explanation:

use the distributive property first; distribute 4 TO a+2

4(a+2) = 4a+8

once you have got your answer, make the new equation

4a + 8= - 4

Now, solve the equation

4a + 8= - 4

4a = -4-8

4a = -12

a = -12/4   ( always remember to put the sign )

a = -3

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Lisa [10]

Answer:

what? what is this supposed to be?

4 0
3 years ago
Please help with math
densk [106]

Answer:

The triangular prism is a better deal because you get 204 in³ for the same price you would pay for 128 in³ with a trapezoidal prism.

Step-by-step explanation:

The trapezoidal prism has volume 32*4=128 cubic inches. The triangular prism has volume 34*6=204 inches. Since the triangular prism is more voluminous, it is the better deal. Hope this helps!

3 0
3 years ago
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Which graphs have rotational symmetry? Check all of the boxes that apply.
ivanzaharov [21]

Answer:

The correct option are;

On a coordinate plane, a cubic function has an x-intercept of (0, 0)

On a coordinate plane, an oval is in quadrant 1

Step-by-step explanation:

Rotational symmetry of a shape is a shape that when it is rotated on its axis to a given angle less than one complete revolution, the shape looks exactly like the pre-image or original appearance of the shape

For a cubic function that has x-intercept = (0, 0) we have;

y = f(x) = a·x³ + b·x² + c·x

Has the shape f a fan blade and therefore, looks the sane when rotated when rotated through 180°

The shape of an oval looks the same when rotated through 180°

8 0
3 years ago
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A square has a side of 6.25 feet. What is the area in square feet? Round to the correct significant digits.
OleMash [197]
The area of a square is s•s.
A= 6.25•6.25
A= 39.0625
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(I'm assuming rounding to the significant digits means rounding to the hundredths since 6.25 is rounded to the hundredths.)
7 0
3 years ago
Help me please !!!!!!!
AfilCa [17]

Use the given times and velocities to make two points:  (1,4) and (2,2)   

Part A: 

Slope is the change in Y over the change in X from the two pints you made:

 Slope =  (2-4) / (2-1 )= -2

Now you have the slope, calculate the Y-intercept

y = -2x + b

Using (1,4)

4 = -2(1) + b = 4 =-2 +b. b = 6

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Part B:

using the above equation replace x with 1, 2, 3, and 4 and solve for the Y

 then plot those onto a graph

6 0
3 years ago
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