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lys-0071 [83]
4 years ago
14

2x - y = 10 y = -x - 1 Solve the system of equations

Mathematics
1 answer:
alekssr [168]4 years ago
8 0
X= 9<span> and y= </span><span>8 ----------------------------------------------------------</span>
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dont want to go to summer school would be so thankful to anyone who could help me with this math problem
Zigmanuir [339]
Looks like you going to summer school
4 0
3 years ago
Identify the height of a triangle in which b=(x−2) m and A=(x2−4) m2. A) h = (2x + 4) m B) h = (2x + 2) m C) h = (x + 2) m D) h
hjlf

Answer:we know that

area of triangle=b*h/2

b=(x-2) m

Area=(x²-4) m²

h=?

(x²-4)=(x+2)*h/2

but remember that

(x²-4)=(x+2)*(x-2)

so

subsititute

(x+2)*(x-2)=(x+2)*h/2

(x-2)=h/2

h=2*(x-2)

the answer is

the height of a triangle is 2*(x-2)

Step-by-step explanation:

<h2>hope its right</h2>
8 0
3 years ago
Find the measure of angle A.<br> 1<br> 32<br> 58
Vladimir79 [104]

Answer:

The measure of angle A is 32 degrees

Step-by-step explanation:

The picture of the question in the attached figure

In the right triangle of the figure

The tangent of angle A is equal to

tan(A)=\frac{5}{8} ----> by TOA (opposite side divided by the adjacent side)

Find the measure of angle A

using a calculator

A=tan^{-1}(\frac{5}{8})=32^o

6 0
3 years ago
Donna wants to give her child some cough medicine. However, she is unsure about the dosage, so she reads the directions. She not
Leokris [45]

Answer:

C

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
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Iteru [2.4K]

Answer:

Step-by-step explanation:

Original price = x

75% of 70% of x = $42

0.75*0.70x =$42

x = $42/(0.75*0.70) =$42/0.525 = $80

7 0
4 years ago
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