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Damm [24]
3 years ago
13

21x+9 = Help please

Mathematics
1 answer:
matrenka [14]3 years ago
4 0

Answer:

3

Step-by-step explanation:

cross multiply

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xeze [42]
You have to solve this integral

\int\limits^7_{0.5} {525600(0.42 t^{2} +2.7t-1)} \, dt

That integral is easy to solve:

525600[0.42 t^3/3 + 2.7t^2/2 - t] eavluated between the limits of the integral, i.e. 7 and 0.5
6 0
4 years ago
67.498 to the nearest whole number
insens350 [35]

Answer:

67

Step-by-step explanation:

To round 67.498 to the nearest whole number consider the tenths’ value of 67.498, which is 4 and less than 5. Therefore, we have to round down: the whole number ones place value of 67.498, 67, remains 67, and the decimal point and all digits (.498) are removed.

67.498 rounded to the nearest whole number = 67

8 0
3 years ago
Expand and simplify (x+5)(x-2)
lukranit [14]

Answer:

x² + 3x - 10

Step-by-step explanation:

Each factor in the second factor is multiplied by each term in the first factor, that is

x(x - 2) + 5(x - 2) ← distribute each parenthesis

= x² - 2x + 5x - 10 ← collect like terms

= x² + 3x - 10

7 0
3 years ago
Least Common Multiple of 9 and 45 ​
N76 [4]

Answer: 45

Step-by-step explanation:

3x3x5

7 0
4 years ago
> Reflect the shape A in the 3-axis.
suter [353]

Answer:

(4,3)

Step-by-step explanation:

y axis for away straight line down.

7 0
3 years ago
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