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goldfiish [28.3K]

3 years ago

15

Write a slope-intercept equation for a line perpendicular to f(x) = −2x + 4 and

1 answer:

Ierofanga [76]3 years ago

6 0

Answer:

y-(-1)=-2(x-(-4))

Step-by-step explanation:

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A group of friends were working on a student film. They spent all their budget on props and costumes. They spent $693 on props,

sergeinik [125]

Answer:

The total budget is $1260

Step-by-step explanation:

Given

$Props = \$693$

$Costumes = 45\%$

Required

Determine the total budget

Since all budgets was spent on Props and Costumes only.

We have that.

$\%Props + \%Costumes = 100\%$

$\%Props + 45\%= 100\%$

$\%Props= 100\% -45\%$

$\%Props= 55\%$

In other words, 55% was spent on Props

Let the total budget be x, we have:

$55\% * x = \$693$

Make x the subject

$x = \$693/55\%$

$x = \$1260$

Hence, the total budget is $1260

5 0

3 years ago

A fair coin is flipped twelve times. What is the probability of the coin landing tails up exactly nine times?

seraphim [82]

Answer:

$P\left(E\right)=\frac{55}{1024}$

Step-by-step explanation:

Given that a fair coin is flipped twelve times.

It means the number of possible sequences of heads and tails would be:

2¹² = 4096

We can determine the number of ways that such a sequence could contain exactly 9 tails is the number of ways of choosing 9 out of 12, using the formula

$nCr=\frac{n!}{r!\left(n-r\right)!}$

Plug in n = 12 and r = 9

$=\frac{12!}{9!\left(12-9\right)!}$

$=\frac{12!}{9!\cdot \:3!}$

$=\frac{12\cdot \:11\cdot \:10}{3!}$ ∵ $\frac{12!}{9!}=12\cdot \:11\cdot \:10$

$=\frac{1320}{6}$ ∵ $3!\:=\:3\times 2\times 1=6$

$=220$

Thus, the probability will be:

$P\left(E\right)=\frac{n\left(E\right)}{n\left(S\right)}$

$=\frac{220}{4096}$

$=\frac{55}{1024}$

Thus, the probability of the coin landing tails up exactly nine times will be:

$P\left(E\right)=\frac{55}{1024}$

4 0

3 years ago

Help me please, I need help with this it's a major grade so please don't joke around I will give brainliest and 5 stars

erma4kov [3.2K]

Answer:

D

Step-by-step explanation:

a clockwise rotation 90 degrees results in a transformation like this:

$(x,y)$ ⇒ $(y,-x)$

plz mark me brainliest. :)

3 0

2 years ago

What is 9+5x-5+3x? What could it be

qwelly [4]

8x+4 would be the answer if you combine like terms

6 0

3 years ago

Find the force it would take to accelerate an 800-kg car at a rate of 5 m/s^2.

Mars2501 [29]

800/5 which is 160!!!!!!!!

5 0

3 years ago