Can someone pls pls pls help, i will mark brainliest if right and show work

Mathematics

1 answer:

daser333 [38]3 years ago

3 0

Answer:

∠7 = 81°

Step-by-step explanation:

∠1 = ∠7

3x + 18 = 2x + 39

3x - 2x = 39 - 18

x = 21

∠7 = 2x + 39

∠7 = 2(21) + 39

∠7 = 42 + 39

∠7 = 81°

You might be interested in

A pizza place charges $5.00 for a cheese pizza and $1.75 for each additional topping. Which equation models the total price of a

inysia [295]

Answer:

Step-by-step explanation: This is c because 1.75 t is right because they don't know how many toppings you are going to put on but they do know how much you will automatically have to pay for the pizza itself. That is why it is 1.75t(toppings) plus the 5 dollars for pizza.

Hope this helps!

4 0

3 years ago

What is the area of the trapezoid shown below?

andrew-mc [135]

Ok so the triangle part is 10 but I don’t know what the rectangle part is but the formula for a rectangle is A=base x high

5 0

3 years ago

Which expressions are equivalent to 10a - 25 + 5b

sergey [27]

Answer:

Step-by-step explanation:

$10a-25+5b\\\\-2(-5a-25+5b)=(-2)(-5a)+(-2)(-25)+(-2)(5b)\\=10a+50-10b\qquad NOT\\\\(2a-5+b)(5)=(2a)(5)+(-5)(5)+(b)(5)=10a-25+5b\qquad YES\\\\10(a-2.5+0.5b)=(10)(a)+(10)(-2.5)+(10)(0.5b)\\=10a-25+5b\qquad YES\\\\(-2a+5-b)(-5)=(-2a)(-5)+(5)(-5)+(-b)(-5)\\=10a-25+5b\qquad YES\\\\-10(-a-2.5-0.5b)=(-10)(-a)+(-10)(-2.5)+(-10)(-0.5b)\\=10a+25+5b\qquad NOT$

5 0

3 years ago

PLZ HELP QUICK WILL MARK BRAINLIEST

slega [8]

For the Fist One it’s Pentagonal Pyramid

5 0

3 years ago

Show on a number line 2/3 's?

Alexxandr [17]

It would be In between 1/2 and 2

6 0

3 years ago