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3 years ago

What is the y-intercept of the line

Mathematics

1 answer:

pychu [463]3 years ago

4 0

My guess would be -54 because we are starting with -54

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Which table shows a proportional relationship?? help asap

larisa [96]

Answer:

i wanna say its the first one if its wrong im very sorry

Step-by-step explanation:

5 0

3 years ago

The maximum value of the function: f(x)= -5 x ^2 +30x-200 is?

VARVARA [1.3K]

Answer:

$\displaystyle - 155$

Step-by-step explanation:

we are given a quadratic function

$\displaystyle f(x) = - 5 {x}^{2} + 30x - 200$

we want to figure out the minimum value of the function

to do so we need to figure out the minimum value of x in the case we can consider the following formula:

$\displaystyle x _{ \rm min} = \frac{ - b}{2a}$

the given function is in the standard form i.e

$\displaystyle f(x) = a {x}^{2} + bx + c$

so we acquire:

b=30
a=-5

thus substitute:

$\displaystyle x _{ \rm min} = \frac{ - 30}{2. - 5}$

simplify multiplication:

$\displaystyle x _{ \rm min} = \frac{ - 30}{ - 10}$

simply division:

$\displaystyle x _{ \rm min} = 3$

plug in the value of minimum x to the given function:

$\displaystyle f (3)= - 5 {(3)}^{2} + 30.3 - 200$

simplify square:

$\displaystyle f (3)= - 5 {(9)}^{} + 30.3 - 200$

simplify multiplication:

$\displaystyle f (3)= - 45 + 90- 200$

simplify:

$\displaystyle f (3)= - 155$

hence,

the minimum value of the function is -155

5 0

3 years ago

A market buys mixed nuts at $16 per pound. In order to make a 75% profit, how much will the market charge you per pound?

drek231 [11]

For this, all you'll wanna do is add the answer to this problem to your original number...

16× .75 = 12

now add...

16 + 12 = 28$ per pound...

to make a 75% profit on the markets investment....I think I'll have a salad instead at that price...

5 0

3 years ago

A square sheet of rubber has sides that are 20 cm long. What is the area of the square of rubber in cm squared?

adoni [48]

Answer:

$area \: = side \times side \\ area = 20 \times 20 \\ area = 400 \: {cm}^{2}$

8 0

3 years ago

Read 2 more answers

What is the length of Line segment A C? Round to the nearest tenth. 3.0 cm. 9.8 cm. 10.5 cm. 12.8 cm.

Simora [160]

Answer:

10.5 cm

Step-by-step explanation:

A line segment is defined as a part of a line. It is a straight line having two end points. The only difference between a line and line segment is that a line is continuous with indefinite length whereas a line segment has a definite length to it between the two points.

In the figure, the length of the line segment is 10.5 cm (rounded to the nearest tenth).

5 0

3 years ago

Read 2 more answers