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Rina8888 [55]
4 years ago
10

Help needed ASAP will give you BRAINLIEST and 5 stars rate

Mathematics
1 answer:
Phoenix [80]4 years ago
6 0

Option D, 8 dollars per hour

320/40= 8

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if f(1) = -5 and f(n) = f(n-1) +7, find the first four terms and the common difference of the sequence
Alex_Xolod [135]

Answer:

- 5, 2, 9, 16 and d = + 7

Step-by-step explanation:

to obtain the first four terms substitute n = 2, 3, 4 into the recursive formula

f(1) = - 5 ← given

f(2) = f(1) + 7 = - 5 + 7 = 2

f(3) = f(2) + 7 = 2 + 7 = 9

f(4) = f(3) + 7 = 9 + 7 = 16

common difference d = 16 - 9 = 9 - 2 = 2 - (- 5) = 7



6 0
3 years ago
Rupert is copying some files from his computer to a compact disc, like the one shown above.
My name is Ann [436]

Option B: 11,304 \mathrm{mm} ^2 is the area of the compact disc.

Explanation:

The diameter of the compact disc is 120mm.

To determine the area of the compact disc, let us substitute the values in the area of the circle formula,

A=\pi r^2 where r=\frac{d}{2}

Substituting the value of d in r=\frac{d}{2}, we get,

r=\frac{120}{2} =60

Thus, r=60 and \pi=3.14. Let us substitute these values in A=\pi r^2, we get,

A=3.14\times(60)^2

Simplifying, we have,

A=3.14\times3600

Multiplying, we get,

A=11304mm^2

Thus, the area of the compact disc is 11,304 \mathrm{mm} ^2

Hence, Option B is the correct answer.

3 0
3 years ago
A swimmer swam 48 kilometers inns days. What is the value of d if the swimmer swam an average of 3.2 kilometers daily?
ankoles [38]
The answer will be of the kilometers daily will be 153.6 Hopes this helps. :)
5 0
3 years ago
Rewrite <img src="https://tex.z-dn.net/?f=f%28x%29%3D%28x%2B7%29%5E2-9" id="TexFormula1" title="f(x)=(x+7)^2-9" alt="f(x)=(x+7)^
horrorfan [7]

Answer: f(x)=x^(2)+14x+40

8 0
3 years ago
If x*y=60 and x+y=17
e-lub [12.9K]

Answer:

the first one is 10*6 and the second one is 10+7

Step-by-step explanation:

8 0
3 years ago
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