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Scrat [10]
3 years ago
8

Evaluate the function. Find f(5). f(x)=2x2-1. The second 2 is a exponent

Mathematics
1 answer:
nata0808 [166]3 years ago
4 0

Answer:

f(x)=2x^2-1\\f(5)=2(5)^2-1\\f(5)=2(25)-1\\f(5)=50-1\\f(5)=49

Step-by-step explanation:

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pam cuts 75 inches of ribbon into 6 equally sized pieces with no ribbon left over whats the length in inches of each piece of ri
Elden [556K]

Answer:

12.5 inches? I think

Step-by-step explanation:

gotta go do my work

5 0
3 years ago
Read 2 more answers
I don't know how to solve this
sergiy2304 [10]
The answer that I got was side  WX = 12 inches

It says that WY is congruent to XY which means that they are the same. That means that XY is also 3m-4. It also says that the perimeter of the triangle is 76 inches.

With this information I set up an equation:

3m-4 + 3m-4 +m = 76

(The number on the right side is the perimeter given to us in the problem and the numbers on the left side are the 3 side lengths).

I combined like terms on the left side and ended up with:

7m-8=76 

I added 8 to both sides of the equation and got 7m=84.

Finally I divided both sides by 7 and got m=12

m is equivalent to side WX..

Hope this helps!
4 0
3 years ago
In an examination , ten students scored the following marks : 60 , 58 , 90 , 51 , 47 , 81 , 70 , 95 , 87 , 99.
Feliz [49]

Answer:

Range = highest data - lowest data

99-47=

52

5 0
3 years ago
If PQ=7 and QR=10, then PR=
Cloud [144]

Answer:

PR=PQ+QR

=7+10

=17

Hope this will help:)

8 0
3 years ago
Read 2 more answers
1. What is the binomial expansion of (x + 3)5? ​
lara [203]

Answer:

5x + 15

Step-by-step explanation:

To expand the binomial, you need to multiply each term inside the parentheses by 5.

(x + 3)5

= (x * 5) + (3 * 5)

= 5x + 15

4 0
2 years ago
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