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2 years ago

help! what do i do

Mathematics

1 answer:

Sloan [31]2 years ago

5 0

Switch the y and x then solve for y, so I believe b.

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Math help pls!!<br> i have no clue how to do this

REY [17]

Answer:

I THINK it's A

Step-by-step explanation:

6 0

3 years ago

What does m equal and please show how to do it: m-4=2m

Tju [1.3M]

Answer:

$m - 4 = 2m \\ m - 2m = 4 \\ m(1 - 2) = 4 \\ m( - 1) = 4 \\ - m = 4 \\ m = - 4$

8 0

3 years ago

Expand the expression and combine like terms

____ [38]

But what is the expression, you have to tell me so I can do it.

4 0

3 years ago

Solve this inequality: 3b – 7 < 32

butalik [34]

It's a lot like solving equations.

3b-7 < 32
Add 7 to each side.
3b < 39
Divide by 3 on each side.
b < 13

Hope this helps :)

6 0

3 years ago

Read 2 more answers

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

￼help! what do i do

help! what do i do