3 years ago

1) Which expression is a DIFFERENCE?

Mathematics

1 answer:

katovenus [111]3 years ago

7 0

Answer:

B, a difference is a result of subtraction

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For f(x)=2x+1 and g(x)=x^2-7, find (f.g)(x)

hram777 [196]

Option C (in the figure) is correct.

Step-by-step explanation:

We need to find (f.g)(x)

Given that $f(x)=2x+1\\g(x)= x^2-7$

Now finding (f.g)(x)

$(f.g)(x)= f(x).g(x)$

$(f.g)(x)= (2x+1)(x^2-7)\\(f.g)(x)=2x(x^2-7)+1(x^2-7)\\(f.g)(x)=2x^3-14x+x^2-7\\(f.g)(x)=2x^3+x^2-14x-7$

So, $(f.g)(x)=2x^3+x^2-14x-7$

Option C (in the figure) is correct.

Learn more about Composite Functions at:

brainly.com/question/10772025

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Keywords: Composite function

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3 years ago

True or false I need help plzzz

Stels [109]

Answer:

i cant rlly see it

Step-by-step explanation:

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3 years ago

Column A

Yuri [45]

Answer:

a. vertical angles

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3 years ago

△DEF≅△PQR<br><br> What is the length of PQ?<br><br> (DF is 25cm and RQ is 24cm)

Stells [14]

Since the triangles are similar, they have the same ratio to all corresponding sides. Let's find the ratio of ΔDEF to ΔPQR.

DF/RQ = 25/24

Similarly,

DE/PQ = 25/24

Thus,

PQ = 24/25 DE
PQ = 0.96DE

This means that the length of PQ is 96% of the length of DE.

I hope I was able to help you. Have a good day.

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3 years ago

The temperature on a winter night was -23 degrees. The temperature rose by 5 degrees when the sun came up. When he sun set again

dexar [7]

-23+5-7=-25...................

4 0

4 years ago