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Olin [163]
3 years ago
7

Find f(5). f(x) = x^2 + 2x

Mathematics
1 answer:
natka813 [3]3 years ago
7 0
Put 5 where x is and do the arithmetic.

f(5) = 5^2 +2*5
f(5) = 25 +10 . . . . . evaluate the products
f(5) = 35 . . . . . . . . evaluate the sum
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3. Alyssa has to make 70 pancakes, how many cups of flour will she have to use?
Sonbull [250]

Answer:

14 cups

Step-by-step explanation:

3 0
3 years ago
Plz tell me how to do question 18
bagirrra123 [75]

Answer:

750kmph

Step-by-step explanation:

Average is sum of all parts divided by the number of parts.

Let Stot be average speed for total trip (800kmph).

Let S1 be speed for first quarter of trip (950kmph).

Let S2, S3, and S4 be the speeds of each of the remaining quarters respectively.

Let Sans be the average speed for the remaining three quarters of the trip (a.k.a. The Answer!).

Stot = (S1 + S2 + S3 + S4) / 4

800kmph = (950kmph + S2 + S3 + S4) / 4

3200kmph = 950kmph + S2 + S3 + S4

3200kmph - 950kmph = 2250kmph = S2 + S3 + S4

Divide both sides by 3.

2250kmph / 3 = (S2 + S3 + S4) / 3 = Sans

Sans = 750kmph

8 0
3 years ago
What is the volume of a rectangular pyramid with a height of 5.2 meters and a base 8 meters by 4.5 meters
dezoksy [38]

Answer:

62.4

Step-by-step explanation:

1/3*5.2*4.5*8=62.4

7 0
3 years ago
Read 2 more answers
Monica has a triangular piece of fabric. The height of the triangle is 15 inches and the triangle's base is 6 inches. Monica say
Natalka [10]

Answer:

the formula is base × height ÷ 2, 15×6=90. 90÷2=45, 45 is the answer, she forgot to divide it by 2

Step-by-step explanation:

I hope this helps..

7 0
3 years ago
Read 2 more answers
Which choice is equivalent to the quotient below?
Gnom [1K]
The answer is B. 1/3


√5/√45 <— simply both terms by 5

= √1/√9 <— √5÷5 = 1 and √45 ÷ 5 = √9

= 1/√9

= 1/3



√1 = 1
(you can write 1 directly instead of √1)

√9 = 3
5 0
3 years ago
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