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2 years ago

I need a break down on how to do my home work step by step. Ex. (8)(-5)+(-7)(3)

1 answer:

5 0

Let's break this problem down and solve it step-by-step.

STEP-BY-STEP SOLUTION:

Keep in mind the following:

Two positives together or two negatives together = positive

One positive and one negative together = negative

Okay, now let's begin solving the problem.

= ( 8 ) ( - 5 ) + ( - 7 ) ( 3 )

First we will multiply the brackets together.

= ( - 40 ) + ( - 21 )

Next we will remove the brackets and change the positive ( + ) and negative ( - ) symbol into just a negative symbol, as a positive and negative always equals a negative as stated previously.

= - 40 - 21

Now we will simply subtract 21 from - 40 to achieve our final answer.

= - 61

Hope this helps! :)
Have a lovely day! <3

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I tried to answer this one and got it wrong the question is “find the measure of each angle indicates”

kondor19780726 [428]

Answer:

Step-by-step explanation:

Hi!

Remember, the sum of the angles on a straight angle is 180 degrees. Additionally, the sum of the measures of a triangle are 180 degrees.

Now, let's label the angles of the given triangle.

<DCE = y and <CDE=x

x+y+92=180

x+y= 88

Now, y+140 = 180 --> y= 40

x+40 = 88

x=48

The answer is 48 degrees.

Hope this is correct! Have a good day!

6 0

3 years ago

One half of the birds at the pet store are yellow. Tara buys one of the yellow birds. Then one third of the birds at the store a

Viktor [21]

Well, y=ny
2(y-1)=ny
(where ny is not-yellow)
You get y=2y-2 or y=2. You had two yellow birds and two other types.

3 0

3 years ago

Read 2 more answers

Given f(x)=4x^2 and g(x)=-1/5x^2 choose true or false

mamaluj [8]

it is gonna be c trust me I know for a fact

7 0

2 years ago

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What's the volume of this rectangular prism?

Snowcat [4.5K]

1. Find the length, width, and height of the rectangular prism.
2. Multiply the length, width, and height.
3. Write the answer in cubic units. For example: 60 inches3.

The length is the longest side of the flat surface of the rectangle on the top or bottom of the rectangular prism.

Ex: Length = 5 in.

The width is the shorter side of the flat surface of the rectangle on the top or bottom of the rectangular prism. Ex: Width = 4 in.The height is the part of the rectangular prism that rises up. Imagine that the height is what stretches up a flat rectangle until it becomes a three-dimensional shape. Ex: Height = 3 in.You can multiply them in any order to get the same different result. The formula for finding the volume of a rectangular prism is the following: Volume = Length * Height * Width, or V = L * H * W. Ex: V = 5 in. * 4 in. * 3 in. = 60 in.Since you're calculating volume, you're working in a three-dimensional space. Just take your answer and state it in cubic units. Whether you're working in feet, inches, or centimeters, you should state your answer in cubic units. 60 will become 60 in3.

5 0

3 years ago

Read 2 more answers

Heather makes $6.50 per hour. Every three months, she is eligible for a 2% raise. How much will she make after 2 years if she ge

sammy [17]

Answer:

$7.62 per hour

Step-by-step explanation:

Since, Heather gets a raise every 3 months, in 2 years, she will get a raise 8 times (2years = 24 months, 24 divided by 3 is 8).

Now it becomes a compound growth problem. We can use the formula shown below to solve these type of problems.

$F=P(1+r)^t$

Where,

F is the future value (what we want to find)
P is the present rate ($6.5)
r is the rate of growth, in decimal (2% growth means 0.02)
t is the time frame, number of times compounding occurs (for our case we have figured it to be 8)

Now plugging in all the info, we get the value of F:

$F=P(1+r)^t\\F=6.5(1+0.02)^8\\F=6.5(1.02)^8\\F=7.62$

Thus, after 2 years, Heather's hourly rate will be $7.62

7 0

3 years ago