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sertanlavr [38]
2 years ago
12

Pleaseee help me I’ll give brainliest find the sum of 4x^2-7 and 6x^2-5

Mathematics
2 answers:
Rus_ich [418]2 years ago
7 0

Answer:

10x² - 12

Step-by-step explanation:

4x² - 7 + 6x² - 5  

10x² - 12

lora16 [44]2 years ago
7 0
2(2x^2-1) and the other I’m not sure
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What is -7v(v+7)-2(1+4v)
son4ous [18]

Answer:

-7v² - 57v - 2

Step-by-step explanation:

-7v² - 49v - 2 - 8v

-7v² - 57v - 2

5 0
2 years ago
Please Find the distance between the two points rounding to the nearest tenth (if necessary).
Sphinxa [80]

Answer:

10.29 u

Step-by-step explanation:

<u>Given :- </u>

  • Two points (7,4) and (-2,9) is given to us.

And we need to find out the distance between the two points . So , here we can use the distance formula to find out the distance. As,

:\implies D = √{(x2-x1)² + (y2-y1)²}

:\implies D =√[ (7+2)² +(9-4)²]

:\implies D =√[ 9² +5²]

:\implies D =√[ 81 +25]

:\implies D = 10.29

<h3>Hence the distance between the two points is 10.29 units .</h3>
8 0
3 years ago
Read 2 more answers
PLS HELP ME ASAP I WiLL MARK THE BRAINLIEST
Fittoniya [83]

Answer:

1400 is the volume and the surface area 980

Step-by-step explanation:

4 0
2 years ago
How do I solve this? I will mark answer brainiest pls respond asap!
Illusion [34]

The line of the best fit is y = 4.71x—30.31 and at x = 9.5 inches the value of y is 14.5 oz.

<h3>What is the line of best fit?</h3>

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

First, we need to find the line of best fit:

Let's suppose the line of the best fit is:

y = mx + c

We can find the value of m:

\rm m = \dfrac{n\sum xy-\sum x \sum y}{n\sum x^2 - (\sum x)^2}   and

\rm c = \dfrac{\sum y -m \sum x}{n}

After calculating, we will get:

m = 4.71

d = -30.31

y = 4.71x—30.31

Plug x = 9.5

y = 14.43 ≈ 14.5 oz

Thus, the line of the best fit is y = 4.71x—30.31 and at x = 9.5 inches the value of y is 14.5 oz.

Learn more about the line of best fit here:

brainly.com/question/14279419

#SPJ1

6 0
2 years ago
Order the side/angles from smallest to largest
Goryan [66]

Answer:

the order is the option a. the smallest is T and the largest is S

7 0
2 years ago
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