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3 years ago

Anyone help me solve this? And show work please

Mathematics

1 answer:

inessss [21]3 years ago

4 0

Answer:

A) 2a + 6

Step-by-step explanation:

(5a + 3) + (2a + 3) + x = 9a + 12

Add both side lengths plus the unknown side to equal the perimeter.

7a + 6 + x = 9a + 12

-7a -6 -7a -6 Subtract 7a + 6 on both sides

x = 2a + 6 This is the missing side length.

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Please Assist!<br>What is the answer to this question???<br>

Phoenix [80]

Answer:

$(-5,\frac{1}{2} )$

Step-by-step explanation:

Midpoint Formula: $(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} )$

Simply plug in your coordinates into the midpoint formula to find midpoint:

R(-2, 3)

S(-8, -2)

$(\frac{-2+-8}{2},\frac{3+-2}{2} )$

$(\frac{-10}{2},\frac{1}{2} )$

$(-5,\frac{1}{2} )$

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2 years ago

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Fantom [35]

Answer:

Step-by-step explanation:

$m\angle ABZ+m\angle ZBC=m\angle ABC \\ \\ 12x+55=16x+15 \\ \\ 4x=40 \\ \\ x=10 \\ \\ \therefore m\angle ABZ=120^{\circ}$

8 0

1 year ago

What is the answer to x-2=7

saul85 [17]

x-2=7

apply additon property of equality

x-2+2=7+2

x=9

6 0

3 years ago

Solve for x and why please using these!!!

krok68 [10]

Answer:

$x = 40$

$y = 5$

Step-by-step explanation:

$4x = 2x+80\\2x = 80\\x = 40$

Edit: Solve for Y

A straight line is 180 degrees so one side (the x side) is 160°, The Y side is 20, and you can work backwards by -

$8y - 20 = 20\\8y = 40\\y = 5$

4 0

2 years ago

Margo borrows $1900, agreeing to pay it back with 4% annual interest after 9 months. How much interest will she pay?

lana66690 [7]

1900*4%

1900*0.04

76 (interest for a year)

76*3/4 (3/4 because 9 months is 3/4 of a year)

57 (9 months interest)

Margo will pay $57 in interest

5 0

2 years ago