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OLEGan [10]
3 years ago
13

Math written response questions, please help :)) ty

Mathematics
1 answer:
notka56 [123]3 years ago
7 0
Question 10:
ABC=ABD+DBE+EBC \\  180°=42°+5x+7x+6° \\  12x=138° \\  x=11° \\  CBD=5x+7x+6=12*11+6=138°

Question 11:
WZ=WX+XZ\\ 28=a+1+2(2a+1)\\ 5a+3=28\\ a=5\\ XY=2*5+1=11
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Please help with math problem
Lady_Fox [76]

try and see if it =0

Step-by-step explanation:

This deals with factoring multi-variable polynomials.

7 0
3 years ago
9. If f(x) = 5x-4 and f(2a) =156 , then what is the value of a?
solmaris [256]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

f(x) = 5x - 4

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f(2a) = 5(2a) - 4

f(2a) = 10a - 4

156 = 10a - 4

10a - 4 = 156

Add sides 4

10a - 4 + 4 = 156 + 4

10a = 160

Divide sides by 10

\frac{10a}{10}  =  \frac{160}{10}  \\

a = 16

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7 0
3 years ago
2. Two angles have a common vertex but no common side. How can you tell whether the angles are vertical angles?
Maksim231197 [3]

Explanation:

The angles are <em>vertical angles</em> if the opposites of the rays forming one of the angles are the rays forming the other angle.

More formally, if V is the common vertex, and ...

  • R is a point on one of the rays forming Angle 1
  • S is a point on the ray that is the opposite of ray VR
  • T is a point on the other ray forming Angle 1
  • U is a point on the ray that is the opposite of ray VT

Then angle RVT and angle SVU are vertical angles.

___

Another way to say this is that points R, V, S are collinear, as are points T, V, U, and the two angles of interest are RVT and SVU.

If the above conditions cannot be met, then the angles are not vertical angles.

7 0
3 years ago
noah saved $47 in june, $36 in july, and $27 in august. Then noah spent $18 on school supplies and $36 on new clothes. How much
Rashid [163]
$56
47 + 36 + 27 = 110
110 - 18 - 36 = 56
4 0
2 years ago
Which is longer between 500 feet and 350 yards<br>​
Mariana [72]

Answer:

350 yards

Step-by-step explanation:

3 0
2 years ago
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