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Crazy boy [7]
3 years ago
5

Need help ASAP!

Mathematics
2 answers:
LekaFEV [45]3 years ago
7 0
Int this problem you will have 3 equations since BOTH expressions are inside absolute values they can be equal IF they are both negative, both positive or one of each.
Setup as follows
5y - 2 = 4y + 7          5y - 2 = -(4y + 7)        -(5y - 2) = 4y + 7
5y = 4y + 9               5y - 2 = -4y - 7            -5y + 2 = 4y + 7
y = 9                         5y = -4y - 5                 -5y = 4y + 5
                                 9y = -5                        -9y = 5
                                 y = -5/9                        y = -5/9

We just have 2 solutions (since one repeated) of y = 9 and -5/9
Sav [38]3 years ago
6 0
Simplifying
5y + -2 = 4y + 7

Reorder the terms:
-2 + 5y = 4y + 7

Reorder the terms:
-2 + 5y = 7 + 4y

Solving
-2 + 5y = 7 + 4y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-4y' to each side of the equation.
-2 + 5y + -4y = 7 + 4y + -4y

Combine like terms: 5y + -4y = 1y
-2 + 1y = 7 + 4y + -4y

Combine like terms: 4y + -4y = 0
-2 + 1y = 7 + 0
-2 + 1y = 7

Add '2' to each side of the equation.
-2 + 2 + 1y = 7 + 2

Combine like terms: -2 + 2 = 0
0 + 1y = 7 + 2
1y = 7 + 2

Combine like terms: 7 + 2 = 9
1y = 9

Divide each side by '1'.
y = 9

Simplifying
y = 9
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Answer:4.375

Step-by-step explanation:

4 0
2 years ago
Solve the triangle. Round your answers to the nearest tenth. A. m∠A=43, m∠B=55, a=16 B. m∠A=48, m∠B=50, a=23 C. m∠A=48, m∠B=50,
alexgriva [62]

Answer:

D. m∠A=43, m∠B=55, a=20

Step-by-step explanation:

Given:

∆ABC,

m<C = 82°

AB = c = 29

AC = b = 24

Required:

m<A, m<C, and a (BC)

SOLUTION:

Find m<B using the law of sines:

\frac{sin(B)}{b} = \frac{sin(C)}{c}

\frac{sin(B)}{24} = \frac{sin(82)}{29}

sin(B)*29 = sin(82)*24

\frac{sin(B)*29}{29} = \frac{sin(82)*24}{29}

sin(B) = \frac{sin(82)*24}{29}

sin(B) = 0.8195

B = sin^{-1}(0.8195)

B = 55.0

m<B = 55°

Find m<A:

m<A = 180 - (82 + 55) => sum of angles in a triangle.

= 180 - 137

m<A = 43°

Find a using the law of sines:

\frac{a}{sin(A)} = \frac{b}{sin(B)}

\frac{a}{sin(43)43} = \frac{24}{sin(55)}

Cross multiply

a*sin(55) = 25*sin(43)

a = \frac{25*sin(43)}{sin(53)}

a = 20 (approximated)

8 0
3 years ago
Help me plssss it’s due tonight
Varvara68 [4.7K]

Answer:

Answer choice A

Step-by-step explanation:

This is the midpoint of both coordinates.

4 0
3 years ago
What is the value of x?
vredina [299]
Add all the angle and =to 180 because all the angle in a triangle add up to 180 then put all numbers on one side and all x terms on the other side then you find x
8 0
3 years ago
THIS IS URGENT. A sign at the grocery store says that 3 cucumbers costs $3.60. How much would it cost for 5
Solnce55 [7]

Answer:

18

Step-by-step explanation:

just multiply

8 0
3 years ago
Read 2 more answers
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