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3 years ago

Use the table and the graph to answer the questions.

Mathematics

1 answer:

Darya [45]3 years ago

8 0

Answer:

55774210778899900000

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What is the slope and y-intercept of 2y-10=-4x

geniusboy [140]

Answer:

y=-2x+5

Slope: -2

y int. 5

Step-by-step explanation:

Convert to slope intercept form

2y-10=-4x

Add 10 to both sides

2y-10+10=-4x+10

Simplify

Divide both sides by 2

$\bold{\frac{2y}{2}=-\frac{4x}{2}+\frac{10}{2}}$

Simplify

y=-2x+5

Slope: -2

y intercept: 5

8 0

4 years ago

Read 2 more answers

(1) The roots of 3x - 5 = 7 is x = 4

aivan3 [116]

Answer:

it's right

Step-by-step explanation:

3x - 5 = 7

3x = 7 + 5

3x = 12

x = 12/3

x = 4

6 0

4 years ago

Leo is purchasing a bike that is on sale for 30% off. He knows the function that represents the sale price of his bike is c(p) =

Umnica [9.8K]

Answer:

f[c(p)] = 0.784p

Step-by-step explanation:

sales discount = 30%

sales tax = 12%

c(p) = 0.7p where p is the original price

f(c) = 1.12c where c is the sales price of the bike.

f[c(p)] = 1.12(0.7p)

f[c(p)] = 0.784p Last option.

Assume: p = 100

c(100) = 0.7(100) = 70

f(70) = 1.12(70) = 78.4

f[70(100)] = 0.784(100) = 78.4

7 0

3 years ago

Complete the identity

spin [16.1K]

Answer: $cos(\pi-x)=-cos(x)$

Step-by-step explanation:

We need to apply the following identity:

$cos(A - B) = cos A*cos B + sinA*sin B$

Then, applying this, you know that for $cos(\pi-x)$ :

$cos(\pi-x)=cos(\pi)*cos(x)+sin(\pi)*sin(x)$

We need to remember that:

$cos(\pi)=-1$ and $sin(\pi)=0$

Therefore, we need to substitute these values into $cos(\pi-x)=cos(\pi)*cos(x)+sin(\pi)*sin(x)$ .

Then, you get:

$cos(\pi-x)=(-1)*cos(x)+0*sin(x)$

$cos(\pi-x)=-1cos(x)+0$

$cos(\pi-x)=-cos(x)$

8 0

3 years ago

PLZ HELPPPP HElPPPPPPPPPPP HELPPPP ME

qwelly [4]

Answer:#1.

A=the amount of miles traveled and gallons of fuel

B=Y is the first one it is the amount of miles traveled

C=30x 150

#2.

A=3x 602

B=height of tree inches

C= the number of months

Step-by-step explanation:

i have already had this question

3 0

3 years ago