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Tju [1.3M]
2 years ago
9

I need help pls !!!!!

Mathematics
2 answers:
spin [16.1K]2 years ago
6 0

Answer:

a=7

Step-by-step explanation:

90=52+5a+3

90=55+5a

35=5a

/5

a=7

Murrr4er [49]2 years ago
3 0

Answer:

a=5

Step-by-step explanation:

right angel=90%

90-52=28

28-3=25

5(5)=25

hope this helps

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Find the measure of angle C of a triangle ABC, if: d m∠A = 60°+α, m∠B = 60°−α
snow_lady [41]

Answer:

m∠C  =  60°

Step-by-step explanation:

we know that sum of angles of a traingle is 18 degrees.

given

m∠A = 60°+α,

m∠B = 60°−α

we have to find  m∠C

m∠A + m∠B +  m∠C = 180

60°+α +  60° - α +m∠C = 180

+α and -α gets cancelled

120°+m∠C = 180

=> m∠C  =  180° -  120° =  60°

Thus, measure of angle c is  60°.

8 0
2 years ago
Find the inverse: f(x)= x+2/3
Kobotan [32]
I’m not sure if this is right but f(x) = 1/x + 3/2 ?
4 0
2 years ago
2x+5y=-55 y=3x+6 What is the solution
Arlecino [84]
Let: eq 1:2x+5y=-55
eq 2:y=3x+6
by substituting eq 2 in eq 1 we get,
2x+5(3x+6)=-55
2x+15x+30+55=0
17x + 85=0
x=-85/17
x=-5
By substituting x value in eq 2,
we have,
y=3(-5)+6=-15+6=-9
3 0
2 years ago
Read 2 more answers
NEED HELP QUCKILY PLZ HURRY
wariber [46]

I want to say 17 but I don't know for sure

4 0
3 years ago
Read 2 more answers
3. Here is a list of exam scores for Mr. Kraft's calculus class:
Alja [10]

Answer

15%

Step-by-step explanation:

I think the answer is 15% because when we talk about percentile, we are actually subtracting from 100% in simpler terms. If we say a 85th percentile, it actually means 15%.

4 0
3 years ago
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