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Westkost [7]
3 years ago
6

What is 3x²+5x+25 when x equals 3

Mathematics
2 answers:
Ksivusya [100]3 years ago
8 0

Answer: 67

Step-by-step explanation:

3x^2 + 5x + 25

x = 3

3(3)^2 + 5(3) + 25

3^2 = 9

3(9) + 5(3) + 25

3 * 9 = 27

27 + 5(3) + 25

5 * 3 = 15

27 + 15 + 25

27 + 15 = 42

42 + 25 = 67

babymother [125]3 years ago
4 0

Answer; 67

Step-by-step explanation:

put into the calculator 3(3)^2+5(3)+25 sub the number 3 for x and the answer will come out to 67

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a rectangle swimming pool is 4 ft deep. one side of the pool is 2.5 times longer than the other. the amount of water needed to f
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Find the are of the pool by dividing the volume by the depth:

1960 / 4 = 490

The pool is 490 square feet.


Area is found by multiplying the length by the width.

Let the width = X

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So we now have 2.5x * x = 490


2.5x * x = 2.5x^2


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find X by taking the square root of 196:

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8 0
3 years ago
The mean number of people per day visiting a museum in July was 120. If 20 more people each day visited the museum in August, wh
-BARSIC- [3]
The correct answer is 140 because the mean, average, number from July per day represents how many people would have visited each day if they were all even.

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Answer:

75°

Step-by-step explanation:

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Reference angle = ? = θ

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