3 years ago

What does (5+2)(10+2) equal?

Mathematics

2 answers:

ale4655 [162]3 years ago

5 0

The answer is 84
5+2=7
10+2=12
7(12)
7 times 12=84

KatRina [158]3 years ago

4 0

The answer would be 84

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The fish population of a lake is decreasing each year. A study is conducted. But, unfortunately some data was lost. The research

Solnce55 [7]

Answer:

$F(t) = 18000(0.6666)^{t}$

Step-by-step explanation:

The fish population after t years can be modeled by the following equation:

$F(t) = F(0)(1-r)^{t}$

In which F(0) is the initial population and r is the constant rate of decay.

Year one the fish population was 18000

This means that $F(0) = 18000$

In year three the fish population was 8000 fish.

Two years later, so $F(2) = 8000$

$F(t) = F(0)(1-r)^{t}$

$8000 = 18000(1-r)^{2}$

$(1-r)^{2} = 0.4444$

$\sqrt{(1-r)^{2}} = \sqrt{0.4444}$

$1 - r = 0.6666$

$r = 0.3334$

$F(t) = 18000(0.6666)^{t}$

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3 years ago

Graph y=2x+1 on a number line<br> Will give brainliest if right.

sdas [7]

This is the awnser too this one

8 0

3 years ago

ANSWER QUICK!

GREYUIT [131]

The actual answer is 5.66666666
The reason is that because he made 238 over 42 months you divide 238$ by 42 months

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3 years ago

What quadrilateral has exactly one pair of parallel sides

Karo-lina-s [1.5K]

A trapezoid is a quad that has exactly one pair of parallel sides

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3 years ago

Simplify (7+5)^2 divided by 4 x 3 + 9

MaRussiya [10]

((7 + 5)^2) / (4 * 3 + 9) =
(12^2) / (12 + 9) =
144 / 21 reduces to 48/7 or 6 6/7

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3 years ago