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Rzqust [24]
3 years ago
14

Factor x2 + 2x - 15.

Mathematics
1 answer:
dalvyx [7]3 years ago
4 0

Answer:

\large\boxed{D)\ (x+5)(x-3)}

Step-by-step explanation:

x^2+2x-15=x^2+5x-3x-15=x(x+5)-3(x+5)\\\\=(x+5)(x-3)

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If sin(x) = cos(y) for acute angles x and y, how are the angles related?
Vesnalui [34]

Answer:

b. complementary

Step-by-step explanation:

-Complementary angles are angles that add up to 90°.

-These are usually the two acute angles in the right triangle.

#To verify, lets take the two angles 30° and 60°:

Cos \ 60\textdegree=0.5\\\\Sin \ 30\textdegree=0.5\\\\\therefore Sin \ 30\textdegree=Cos \ 60 \textdegree=0.5

#We can reverse as:

Sin \ 60\textdegree=0.86603\\\\Cos \ 30\textdegree=0.86603\\\\\therefore Sin \ 60\textdegree=Cos \ 30\textdegree=0.86603

Hence, two angles are said to be complimentary if they sum up to 90°.

6 0
3 years ago
What fraction is the greatest in this row? 12/4, 4/4, 2 2 / 4, 1/4. also 2 2 /4 is a mixed number
kakasveta [241]

Answer:

12/4

Step-by-step explanation:

4/4 is 1

1/4 is well 1/4

2 2/4 is 2 1/2

12/4 is 3

the greatest fraction is 3

4 0
3 years ago
Read 2 more answers
Find the domain and range of the exponential function h(x) = 125x.
Yanka [14]
H would decrease either way because h is a variable for a certain number. that number would usually be divided from both sides. you would be eliminating x from the equation. 125x/h. by dividing you are creating a smaller number. by dividing you are decreasing. you're welcome. :)
8 0
3 years ago
On Saturday, Conner drives 62 1/4 miles each hour. If he travels for 4 hours, how many miles does he travel altogether? please h
Taya2010 [7]
You would multiply 62 1/4 and 4. Which you cant do that so you would have to make it into a inproper fraction so that will be 249/4 times 4/1 then you can multiply which your answer would be 996 /4 and then in simplest form would be 249/1= 249
8 0
3 years ago
Read 2 more answers
There's got to be someone who can answer this
Sphinxa [80]
Yes based on ja 82 and it can be added
4 0
3 years ago
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