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3 years ago

Pls help I’m failing I’ll brainlest and add extra points ASAP help with both

Mathematics

2 answers:

Pie3 years ago

8 0

9) +1/6 if it’s not fractions tell me

Fittoniya [83]3 years ago

7 0

Answer:

The slope of the one of the top is -1/4

The slope of the one on the bottom is 1/6

Step-by-step explanation:

The one on the top goes down by 1 (negative) and goes 4 to the right (positive), which can be written as -1/4, which is the slope.

The one on the bottom goes up by 1 (positive) and goes to the right by 6 (positive), which can be written as 1/6, which is is the slope.

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A car repair shop charged $80 per hour for labor and $210 for the parts of a car. If the total cost of repair for the car was $4

ohaa [14]

Hello!

$\bf Answer:$

It took $\boxed{ \bf 3.5}$ hours to repair the car.

$\bf Explanation:$

First, subtract the cost of car parts from the total amount spent:

490 - 210 = 280

Divide this by cost of labor per hour:

280 ÷ 80 = 3.5

8 0

3 years ago

Solve for n: -4(3n+3)=5(-2-6n)-2

STALIN [3.7K]

Answer:

n=0

Step-by-step explanation:

We want to solve for n in the equation

-4(3n+3)=5(-2-6n)-2

We expand using the distributive property to obtain:

-12n-12=-10-30n-2

We group similar terms to get:

-12n+30n=-10+12-2

We simplify to get:

18n=0

Divide through by 18 to get:

n=0

8 0

3 years ago

Solve the following system of equations algebraically. <br><br> y=2x-12<br> y=x+22+3

kirill [66]

Answer:

x=37

Step-by-step explanation:

because

y=y

or as, 2x-12=x+22+3

or as, 2x-x=12+22+3

or as, x = 37

4 0

3 years ago

If 1 - cosA= 1/2 show that tan²A + 4sin²A = 6

pav-90 [236]

$\text{Given that,}\\\\1-\cos A = \dfrac 12\implies \cos A = 1-\dfrac 12 = \dfrac 12\\\\\text{L.H.S}\\\\=\tan^2 A + 4 \sin^2 A\\\\=\dfrac{\sin^2 A}{\cos^2 A}+4(1-\cos^2 A)\\\\\\=\dfrac{1-\cos^2 A}{\cos^2 A} +4-4\cos^2 A\\\\\\=\dfrac{1-\left( \dfrac 12 \right)^2 }{\left(\dfrac 12 \right)^2 } +4 -4 \left( \dfrac 12 \right)^2\\\\\\=\dfrac{1- \dfrac 14}{\dfrac 14}+4-4\cdot \dfrac 14\\\\\\=\dfrac{\tfrac 34}{\tfrac 14}+4-1\\\\\\=\dfrac 34 \cdot 4 +3\\\\=3+3\\\\=6\\\\=\text{R.H.S}$

3 0

2 years ago

What is the value? <br> 5x+3=4x ?? bit confused

Irina-Kira [14]

Minus 4x from both sides
x+3=0
minus 3 from both sides
x=-3

5 0

3 years ago