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ss7ja [257]
3 years ago
12

Combine like terms. 7a^2 - a^2 + 16 z^2 + z + 4z^3 + 4z^2 1/4(16 + 4p)

Mathematics
1 answer:
Ronch [10]3 years ago
5 0
1. -a^2+7x^2+16
2. 4z^3+5z^2+z
3. p+4
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nexus9112 [7]
The answer is 'F'.......
4 0
3 years ago
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What is the area of a regular nonagon (9 sides) with side length of 15 cm and apothem of 20.6 cm? Round the answer to the neares
Triss [41]
We know that

<span>The nine radii of a regular Nonagon divides into 9 congruent isosceles triangles
</span>therefore
[the area of <span>a regular nonagon]=9*[area of isosceles triangle]

</span>[area of isosceles triangle]=b*h/2------> 15*20.6/2----> 154.5 cm²
so
[the area of a regular nonagon]=9*[154.5]------> 1390.5 cm²

the answer is
1390.5 cm²

5 0
3 years ago
Write the equation<br>x - 4y = 16 in<br>slope-intercept form.​
e-lub [12.9K]

<u><em>Good morning</em></u>,

Step-by-step explanation:

Look at the photo below for the Answer.

:)

3 0
3 years ago
HELP! The rule as a mapping for the translation of a rectangle is (x, y) → (x – 2, y 7). Which describes this translation?a tran
kipiarov [429]

Answer:

Notation Rule A notation rule has the following form ry−axisA → B = ry−axis(x,y) → (−x,y) and tells you that the image A has been reflected across the y-axis and the x-coordinates have been multiplied by -1. Reflection A reflection is an example of a transformation that flips each point of a shape over the same line.

Step-by-step explanation:

8 0
2 years ago
For which value of a does the following system of equations have no solution? -x+6y=7 , -5x+10ay=32
dlinn [17]

Remark

If the lines are parallel, there are no solutions to the system of equations. Start with the equation you know the most about.

x + 6y = 7                Subtract x from both sides

x - x + 6y = 7 - x      Combine

6y =  - x + 7             Switch and divide by 6

y = -x / 6 + 7/6

The general equation for a line is y = mx + b where m is the slope of the line.

m = - 1/6

================

Now look at the second equation

10ay - 5x = 32               Add 5x to both sides

10ay = 5x + 32              Divide by 10a

y = (5/10a)x + 32/(10a)  

===============

Now you must make

5/10a = - 1/6                     Cross Multiply

5* 6 = - 10a * 1

30 = - 10a                        Divide by - 10

a = 30 / - 10

a = - 3

So these two equations will have no solution when a = - 3



8 0
3 years ago
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