3 years ago

Find the sum. (7/4x - 5) + (2y - 3.5) + (-1/4x + 5) =

Mathematics

2 answers:

garri49 [273]3 years ago

6 0

Answer:

1 1/2x-3.5+2y

Step-by-step explanation:

Combine like terms

gtnhenbr [62]3 years ago

3 0

1/12 that the a lolol Rick rolled lol kk

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The radioactive element carbon-14 has half of 5750 years. A scientist determined that the bones from a mastodon has lost 56.6% o

IRISSAK [1]

Answer:7881 years

Step-by-step explanation:

You can use the equation

fraction remaining = 0.5n where n is # of half lives elapsed

n = ?

fraction remaining = 1 - 0.612 = 0.388

0.388 = 0.5n

n = 1.37 = the # of half lives

1.37 x 5750 yrs = 7881 years

8 0

3 years ago

Select the GCF of these numbers

GenaCL600 [577]

Answer:

Step-by-step explanation:

3⁶ * 4² * 12 = 3⁶ * 4² * 4*3 = 3⁷ * 4³

3³ * 4 * 5

GCF= 3³ * 4

Only common factor with minimum power

4 0

3 years ago

Graph this function:f(x)=x^2-4x-5

defon

A= 1 b= -4.
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3 years ago

Select the correct answer.

sleet_krkn [62]

Answer: Factors are the numbers and/or variables between your transactions (division, multiplication, addition, and subtraction signs). So the answer would be x2, 16x, and 64.

Step-by-step explanation:

You welcome

Can I get brainliest when sun else answers?

6 0

3 years ago

If a = 5^x, b = 5^y and a^y×b^x = 25 then prove that: xy =1

avanturin [10]

$a = {5}^{x} \\ b = {5}^{y} \\ {a}^{y} \times {b}^{y} = 25 \\ prove \: ( {5}^{x} )^{y} \times ( {5}^{y} ) ^{x} = 25 \\ {5}^{xy} \times {5}^{yx} = {5}^{2} \\ {5 }^{xy + yx} = 5^{2} \\ 5^{2xy} = {5}^{2} \\ is \: \: 2xy = 2 \\ xy = \frac{2}{2} \\ xy = 1$

3 0

3 years ago