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notsponge [240]
2 years ago
12

Please help and thank you

Mathematics
2 answers:
m_a_m_a [10]2 years ago
7 0

Answer:

C

Step-by-step explanation:

Given

5² + (x ÷ 3) ← substitute x = 15 into the expression

= 25 + (15 ÷ 3)

= 25 + 5

= 30 → C

ICE Princess25 [194]2 years ago
4 0

Answer:

30

Step-by-step explanation:

15/3=5

5 x 5 = 25

25 + 5 = 30

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Evaluate f3 + 11g - 4h when f = 3,9 = 2 and h = 7.
Vilka [71]

Answer:

i got u my g

Step-by-step explanation:

so its 9+22-28=3

6 0
3 years ago
Read 2 more answers
Evaluate using <br> Definite integrals
swat32

Since [0,4]=[0,1]\cup(1,4], we can rewrite the integral as

\displaystyle \int_0^1f(t)\;dt + \int_1^4 f(t)\; dt

Now there is no ambiguity about the definition of f(t), because in each integral we are integrating a single part of its piecewise definition:

\displaystyle \int_0^1f(t)\;dt = \int_0^11-3t^2\;dt,\quad \int_1^4 f(t)\; dt = \int_1^4 2t\; dt

Both integrals are quite immediate: you only need to use the power rule

\displaystyle \int x^n\;dx=\dfrac{x^{n+1}}{n+1}

to get

\displaystyle \int_0^11-3t^2\;dt = \left[t-t^3\right]_0^1,\quad \int_1^4 2t\; dt = \left[t^2\right]_1^4

Now we only need to evaluate the antiderivatives:

\left[t-t^3\right]_0^1 = 1-1^3=0,\quad \left[t^2\right]_1^4 = 4^2-1^2=15

So, the final answer is 15.

4 0
3 years ago
In an area of the Midwest, records were kept on the relationship between the rainfall (in inches) and the yield of wheat (bushel
dusya [7]

Answer:

The correct answer is 36.2

Step-by-step explanation:

Hello!

Given the data:

Rainfall(inch) x: 10.5, 8.8, 13.4, 12.5, 18.8, 10.3, 7.0, 15.6, 16.0

Yield (bushels per acre) y: 50.5, 46.2, 58.8, 59.0, 82.4, 49.2, 31.9, 76.0, 78.8

The response variable is

Y: Yield of wheat (bushels per acre)

Explanatory variable:

X: Rainfall in a certain period (inch)

I've calculated the equation of regression using a statistics software, the estimated equation is:

^Y= 4.27 + 4.38X

To calculate the value that will take the response variable for a given value of X:

^Y= 4.27 + 4.38*7.3= 36.24 bushels per acre.

I hope it helps!

5 0
3 years ago
Kevin weighed his loaded truck at a weigh station. It weighed 14 tons 500 lbs 9 oz. His empty truck weighed 2 tons 600 lbs 12 oz
LenaWriter [7]
None of these are correct my calculations are 11 tons 2138 Ibs 28 oz
7 0
3 years ago
If an airplane can fly 700 miles with the wind in the same time it takes to fly 580 miles against the wind. If the plane flies 1
SVETLANKA909090 [29]
44 mph take 700 divide it by 160
4 0
3 years ago
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