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3 years ago

9

What is a benchmark in mathematics

1 answer:

Helga [31]3 years ago

4 0

The three most common benchmarks are 0 1/2 and 1. These are used to estimate number and or fractions.

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Can someone help me with this problem pls

GREYUIT [131]

Answer:

my answer was 7.5

Step-by-step explanation:

2

2b+3b-10

4b+3b-10

10-7b=3b fraction bar means divide so...

3b

__ 2

4b because... b-2b=4b and 8-4b=4b

3/4 =7.5 because 4 cant go into three so you add a decimal and a zero and move decimal up and 4 can go into 30 7 time which equals 28 and 30-28 is 2 add another zero and its 20 and 4 goes in 5 times which equals 20 and 20-20=0 so its 7.5 (i hope this helps ;)

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3 years ago

38x60 using area model

tamaranim1 [39]

Answer:

Step-by-step explanation:

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3 years ago

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What is the midpoint of (2, -3) and (4, 1)

daser333 [38]

Answer:

The answer is

<h2>( 3 , - 1)</h2>

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

$M = ( \frac{x1 + x2}{2} , \: \frac{y1 + y2}{2} )\\$

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(2, -3) and (4, 1)

The midpoint is

$M = ( \frac{2 + 4}{2} \: , \: \frac{ - 3 + 1}{2} ) \\ = ( \frac{6}{2} \: , \: - \frac{2}{2} )$

We have the final answer as

<h3>( 3 , - 1)</h3>

Hope this helps you

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3 years ago

If f(x)=×^2-81andg(x)

defon

9514 1404 393

Answer:

the correct choice is marked

Step-by-step explanation:

$f(x)\cdot g(x)=(x^2-81)\dfrac{x+9}{x-9}=\dfrac{(x-9)(x+9)(x+9)}{(x-9)}\\\\=\boxed{(x+9)^2}$

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3 years ago

What is -12.33 - 7.21?

Ostrovityanka [42]

It would be, -12.33-7.21 = -19.54

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3 years ago

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