All categories

3 years ago

-4(5x-3)+15 is equivalent to

Mathematics

1 answer:

podryga [215]3 years ago

8 0

Answer:

-20x+27

Step-by-step explanation:

-4(5x-3)+15 Distribute First

-20x+12+15 Simplify

-20x+27 All Done!

You might be interested in

A bee flies at 10 feet per second directly to a flower bed from its hive. The bee stays at the flower bed for 13 minutes, and th

rosijanka [135]

Answer:

barbilat hahaha

baho bilat

7 0

2 years ago

The equation of the graph shown plotted in the coordinate plane is y = x + 4. What statement is not true about this graph? A. Ea

frez [133]

Definately option C

As it's mentioned y=x+4 it must be function
So in function every domain has its unique range.
Hence here the slope is not constant

The graph shown is a parabola which is not y=x+4

So option C is wrong

7 0

2 years ago

Read 2 more answers

What is the probability of flipping exactly 6 heads when you flip 6 coins? Please explain your answer and those who waste an ans

kolbaska11 [484]

Binomial probability states that the probability of x successes on n repeated trials in an experiment which has two possible outcomes can be obtained by

(nCx).(p^x)⋅((1−p)^(n−x))

Where success on an individual trial is represented by p.

In the given question, obtaining heads in a trial is the success whose probability is 1/2.

Probability of 6 heads with 6 trials = (6C6).((1/2)^6).((1/2)^(6–6))

= 1/(2^6)

= 1/64

6 0

2 years ago

Guide

Tema [17]

Answer:

Step-by-step explanation:

4 0

2 years ago

The U.S. Energy Information Administration (US EIA) reported that the average price for a gallon of regular gasoline is $3.94 (U

tekilochka [14]

Answer:

a) 25

b) 49

c) 97

Step-by-step explanation:

The sample size is calculated using the formula, n = $(\frac{\sigma\times z}{\textup{Margin of error}})^2$

Now,

for 95% confidence level value of z-factor = 1.96

Given:

Mean = $3.94

standard deviation = $0.25

thus,

a) for margin of error = $0.10

n = $(\frac{\sigma\times z}{\textup{Margin of error}})^2$

n = $(\frac{0.25\times1.96}{\textup{0.10}})^2$

n = 4.9²

n = 24.01 ≈ 25 (Rounded off to next integer)

b) for margin of error = $0.07

n = $(\frac{\sigma\times z}{\textup{Margin of error}})^2$

n = $(\frac{0.25\times1.96}{\textup{0.07}})^2$

n = 7²

n = 49

c) for margin of error = $0.05

n = $(\frac{\sigma\times z}{\textup{Margin of error}})^2$

n = $(\frac{0.25\times1.96}{\textup{0.05}})^2$

n = 9.8²

n = 96.04 ≈ 97 (Rounded off to next integer)

6 0

3 years ago