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3 years ago

How to find area of a composite shape

Mathematics

1 answer:

AlekseyPX3 years ago

7 0

You need to cut the shape into other shapes that you know the formula off

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PLZ HELP!! ALGEBRA! WILL GIVE U BRAINLIEST!

miss Akunina [59]

Answer:

a. -21 b. 14

Step-by-step explanation:

For a, -3x4=-12, and then -12-9=-21. For b, -1/3x-3=1, and then 1+13=14. Hope it helps!

3 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=-2cos%5E%7B2%7D%20x-6sinx-1%3D0" id="TexFormula1" title="-2cos^{2} x-6sinx-1=0" alt="-2cos^{2}

seropon [69]

<h3> Answer;</h3>

<h3> Domain x ER</h3>

<h3> Vertical intercept (0,--3</h3>

<h3> I solved it by graph and trust my</h3><h3>answer </h3>

like my answer and brainliest

6 0

3 years ago

Is the percent increase from 50 to 70 equal to the percent from 70 to 50explain.

Mrac [35]

Answer:

20/50=40% So 50 to 70 percent increase is 40%.

20/70=about 28.57% decrease for 70 to 50.

So they aren't the same because the hundred percent are different numbers in this case.

8 0

3 years ago

The McConnell's records for January, February, March, and April show that their expenditures totaled $2,004, $1,897, $2,345, and

andrew11 [14]

Answer: $ 2,168

Step-by-step explanation:

As we know,

Average = $\dfrac{\text{Sum of terms}}{\text{Number of terms}}$

Given: The McConnell's records for January, February, March, and April show that their expenditures totaled $2,004, $1,897, $2,345, and $2,426, respectively.

Average monthly expenditure for the four months

$=\dfrac{2004+1897+2345+2426}{4}\\\\=\dfrac{8672}{4}\\\\=2168$

Hence, their average monthly expenditure for the four months = $ 2,168.

5 0

3 years ago

****PLEASE HELP**** Meghan spends 25% more each year for auto insurance than Scott, and together they spend $1237.50 per year. H

s344n2d4d5 [400]

Answer: Meghan spent $687.5 per year.

Step-by-step explanation:

Let x represent the amount of money that Scott spends per year for auto insurance.

Meghan spends 25% more each year for auto insurance than Scott. The value of 25% of the amount that Scott spends per year is

25/100 × x = 0.25 × x = 0.25x

Therefore, the amount that Meghan spends would be

x + 0.25x = 1.25x

If the amount that they spent together is $1237.50 per year, it means that

x + 1.25x = 1237.5

2.25x = 1237.5

x = 1237.5/2.25

x = 550

The amount that Meghan spent per year would be

1.25 × 550 = 687.5

6 0

4 years ago