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2 years ago

9

I need help i have to show my work

1 answer:

goldfiish [28.3K]2 years ago

3 0

Answer:

0.25cm^3 (aka 1/4 cm^3)

Step-by-step explanation:

the basic formula for volume is length × width × height.

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Creat an equation for a cubic function, in standard form, that has x- intercept given by the set {-3,1,7} and which passes throu

prohojiy [21]

Given :

Set of x-intercepts {-3,1,7},

point through which it passes (-2,54)

Now,

Step 1: Substitute value of x intercepts in equation, $y=a(x-p)(x-q)(x-r)$ , we get,

$y=a(x-(-3))(x-1)(x-7)$

$y= a(x+3)(x-1)(x-7)$ ... equation (1)

Step 2: substitute x an y with the point through which it passes,

$54=a((-2)+3)((-2)-1)((-2)-7)$

$54 = 27a$

∴ $a=2$

Step 3: Now, substituting value of a in equation (1), we have

$y=(2x+6)(x^{2} -8x+7)$

$y=2x^{3}-10x^{2} -34x +42$ (Requited cubic equation)

6 0

3 years ago

What is the equation of the line that contains the point (-5, -1) and has a slope of 4? Write in slope-intercept form.

Zarrin [17]

$\huge{\boxed{\text{B.}\ y=4x+19}}$

Point-slope form is $y-y_1=m(x-x_1)$ , where $m$ is the slope and $(x_1, y_1)$ is a point on the line.

Substitute the values. $y-(-1)=4(x-(-5))$

Simplify the negative subtraction. $y+1=4(x+5)$

Distribute the $4$ . $y+1=4x+20$

Subtract $1$ on both sides. $\boxed{y=4x+19}$

3 0

3 years ago

Read 2 more answers

I need the answer to all of these with work shown. Thanks!!

professor190 [17]

This is for question 3a.

6 0

3 years ago

−1 + 6 = 5 + 8 + 4<br> Group of answer choices

Stella [2.4K]

Step-by-step explanation:

your answer is 22.

if you have -1 + 6 = 5 theres your first answer 5

5 + 8 is equal to 13

13 + 5 + 4 = 22

<h3 /><h3>your answer would be a total of 22</h3>

7 0

3 years ago

What operation do you use to convert 50 cups to gallons?

zzz [600]

Division can be used. For example

50/16=3.125gallons

or you could use multiplication

50*1/16=3.125gallons

5 0

3 years ago

Read 2 more answers