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Mama L [17]
3 years ago
9

What does (x^2 - 3x + 1) + (2x^2 + 5x + 7) equal?

Mathematics
2 answers:
alisha [4.7K]3 years ago
5 0

Answer:

3x^2+2x+8

Step-by-step explanation:

1. x^2+2x^2=3x^2

2. -3x+5x=2x

3.1+7=8

quester [9]3 years ago
3 0

Answer:

3x^2+2x+8

Step-by-step explanation:

You just add the values if it were subtraction then you would distribute the negative.

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8y - 3y Combining like terms
Alchen [17]

Answer:

5y

Step-by-step explanation:

subtract 8 from 3

8 0
3 years ago
Read 2 more answers
A giraffe can run 32 miles per hour. What is the speed in feet per second? (1 mile = 5280 ft)
velikii [3]

Set up your conversion using dimensional analysis. That's just a fancy way of saying set up your values so you cancel what you don't need and keep what you do. If we want to convert miles per hour to feet per second, we need to convert the miles to feet using the fact that there are 5280 feet in 1 mile, and then convert the hours to seconds using the fact that there are 3600 seconds in an hour. Your set up will look like this (it's all about setting up the fractions correctly): \frac{32miles}{hour}*\frac{5280feet}{1mile}*\frac{1hour}{3600seconds}. If you look at that closely, you can see the there is a label of miles on the top in the first fraction and on the bottom in the second fraction. Those cancel each other out by reducing. Then in the bottom of the first fraction there is hours and in the top of the last fraction there is hours. Those cancel out. From top to bottom or bottom to top you can cancel like labels. This leaves us with feet in the top and seconds in the bottom. Now it's a matter of doing the math. You multiply straight across the top and straight across the bottom. \frac{168960feet}{3600seconds}. Simplifying you get 46.933 feet per second.

4 0
3 years ago
Read 2 more answers
In Exercises 1 and 2, identify the bisector of ST. Then find ST.
Lemur [1.5K]

Given:

A bisector is a line or point that divides a line in half. So point M is in the middle of the entire line ST.

The bisector would be the line MW

This means line MT is half of the enitre line ST so then the entire line is 19*2.

Answer:

ST = 38

Bisector is line MW

3 0
1 year ago
A hair salon serviced 24 customers in a day for a total profit of $846. Haircuts are $22 and hair coloring is $75. If none of th
ser-zykov [4K]
D. because c represents the customers a day and 75 is hair coloring and 22 is hair cuts
7 0
4 years ago
Avg these<br> 190258.50<br> 152698.00<br> 122753.00<br> 220523.00<br> 231951.00
Andre45 [30]
To get an average, you must do the following steps.

step 1:add all the numbers together.
190258.50+152698.00+122753.00+220523.00+231951.00= 918183.5Step 2: divide the ANSWER you get by the amount of numbers there are:
(in this case, it will be 5, because you added 5 numbers together)
918183.5/5


your answer is: 183636.7
that is your average

hope this helps :D
6 0
3 years ago
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