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notsponge [240]
3 years ago
14

If f(x)=2xsquared-10, find f(5) A.90 B.10 C.7.5 D.40

Mathematics
1 answer:
inessss [21]3 years ago
5 0

Answer:

D.40

Step-by-step explanation:

2(5)squared -10

2(25)-10

50-10=40

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Six times a number increased by 20 is four less than eight times the number. Find the number
DaniilM [7]
Greetings!

"<span>Six times a number increased by 20 is four less than eight times the number. Find the number."...

This would be, as an equation:
</span>6x+20=8x-4

Solve:
Add 4 and -6x to both sides.
(6x+20)+4+(-6x)=(8x-4)+4+(-6x)
Simplify.
24=2x
Divide both sides by 2.
(24)/2=(2x)/2
Simplify.
12=x
x=12
<span>
x=12

Hope this helps.
-Benjamin

</span>
4 0
3 years ago
Which fraction is equivalent to 4/6? 2/4 2/3 1/3 1/2​
swat32

Answer:

2/3

Step-by-step explanation:

Your answer would be 2/3 because is you divide 4 and 6 by 2 you get 2/3! Hope This Helped! Happy Friday!

6 0
3 years ago
Can somebody plz help answer the number 10’s questions using the diagram from the bottom left side (only if u know how to do thi
Lana71 [14]

Answer:

10a: △ABC is an Equilateral triangle with all acute angles.

10b: △BCD is A scalene triangle with all acute angles.

10c: △BDE is An Isosceles triangle with one obtuse angle.

Step-by-step explanation:

10) Looking at the diagram at the bottom left;

- △ABC has 3 equal internal angles and as such, it means it will have 3 equal angles.

Thus, we can classify it as; Equilateral triangle with all acute angles.

- △BCD has 3 unequal angles. Thus, it's 3 sides are not equal. Also all the angles are less than 90°.

We can classify it as;

A scalene triangle with all acute angles

- △BDE has 2 equal angles and one angle greater than 90°. This means it has 2 equal sides.

Thus, we can classify it as;

- An Isosceles triangle with one obtuse angle.

8 0
3 years ago
Can anybody help with this
iris [78.8K]
100 =d


your welcome lol
8 0
3 years ago
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LiRa [457]

Answer:

C

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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