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3 years ago

How to solve 3a - ( -1 ) = -5

1 answer:

3 0

You start by removing the parenthesis. Then, move to the constant right.
Next, divide both sides by 3.
So then you get your answer a=-2

Your welcome

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The function f(x) is the total amount spent at a store, when purchasing x items that are $5 each and the items are not taxable

Keith_Richards [23]

F(x)=5x

normal domain: all real numbers
practical domain: all positive integers

becasue we can substituent with any positive integer in the place of x

3 0

3 years ago

Read 2 more answers

cuboid of length 24cm and volume 768cm^3 the width and hight are not equal.give a pair of possible values for their length.

Brilliant_brown [7]

Answer:

Possible values of dimensions are (24,16,2) or (24,8,4)

Step-by-step explanation:

We are given the volume of the Cuboid and length . We are required to find the possible values of width and height from this information.

Let us say that the width is x and height is y

Length = 24

Volume of a cuboid = length * width * height

Volume = 768

768=24*x*y

$xy=\frac{768}{24}\\xy=32\\$

xy=32

Now the possible factors of 32

32=1*32 ( Which shall not be taken into consideration as length is already given as 24 and width or height can not be more length)

32=2*16

32=4*8

Hence the possible values width are 8, 16 and that of height 4 and 2

Hence the possible values of dimensions are (24,16,2) or (24,8,4)

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3 years ago

A car wash detailed 264 cars in 8 hours. At what rate did the car wash detail cars in cars per hour?

sergey [27]

Answer:

Step-by-step explanation:

264/8= 33

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2 years ago

Read 2 more answers

PLEASE HELP! Doing a geometry crossword...

Irina-Kira [14]

Hey what part of geomatry are u doing

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3 years ago

Assume that the engine component of a spacecraft consists of two engines in parallel. If the main engine is 95% reliable, the ba

rodikova [14]

Answer:

a) 0.04

b) 0.19

c) 0.01

d) 0.8

Step-by-step explanation:

Hi,

Let's make our data, considering two rules of probability:

The total probability of any event is 1.
Percentages are converted to decimal.

P(M) = 0.95
P(M')=0.05
P(B)=0.80
P(B')=0.20

- where M → Main Engine works, B → Back Up Engine works, M' → Main Engine will not work and B' → Back Up Engine will not work.

Remember for cases with and, we multiply; for cases with or, we use addition.

a) For this part, we know that Main Engine will work and Back-up engine will not work:

P(M' and B): 0.05 x 0.80 = 0.04

b) Back up will not work and Main will work:

P(M and B') = 0.20 x 0.95 = 0.19

c) We know the probability of entire component working, which is 0.99.

So to find the probability of entire component failing, we need to subtract 0.99 from 1. (Since the total probability is always 1)

P(Entire component will fail) = 1 - 0.99 = 0.01

d) This is a typical case of conditional probability, to calculate a conditional probability we use the following formula: $P(A|B) = \frac{P(A\ and\ B)}{P(B)}$