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kipiarov [429]
4 years ago
15

If 375 miles in 5 hours how many miles per hour

Mathematics
2 answers:
horrorfan [7]4 years ago
8 0
75 mi/hr

375 ÷ 5 = 75
lawyer [7]4 years ago
4 0

Answer:

75

Step-by-step explanation:

375 divided by 5 is 75.


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If a polynomial function f(x)has root -2 + square root 8 and 9 what must be a factor of f(x)
Rasek [7]

Answer:

(x+2-\sqrt{9}) , (x-2+\sqrt{9}) ,(x-9)

Step-by-step explanation:

Given that f(x) is a polynomial function.

This implies that f(x) has x terms of positive integral degrees and also rational coefficients only.

Since an irrational root is given a root of f(x), we find that its conjugate also should be a root of f(x)

i.e. If -2+\sqrt{8} is a root, then -2-\sqrt{8} is also a root.

(Because this only when multiplied will make coefficients rational)

So the factors of f(x) should be atleast

(x+2-\sqrt{9}) , (x-2+\sqrt{9}) ,(x-9)

There can be other factors also but this is compulsory

7 0
3 years ago
Devon records 4 hours of reality shows on her DVR she records comedy shows for 3/8 of that amount of time. Devon watches all the
Alenkinab [10]

The number of half-hour sittings needed to watch all the shows by Devon is 11

<u>Solution:</u>

Given, Devon records 4 hours of reality shows on her DVR  

she records comedy shows for 3/8 of that amount of time.  

\rightarrow \frac{3}{8} \text { of } 4 \text { hours } \rightarrow \frac{3}{8} \times 4 \rightarrow \frac{3}{2} \text { hours }

Devon watches all the reality and comedy shows in half-hour sittings.

We have to find the number of half-hour sittings needed to watch all the shows

Now, number of half hour sittings is given as

=\frac{\text { total time of videos }}{\text { time for hlaf hour sitting }}

\begin{array}{l}{=\frac{4 \text { hours for reality shows }+\frac{3}{2} \text { hours for comedy shows }}{\frac{1}{2} \text { hours for each sitting }}} \\\\ {=\frac{4+\frac{3}{2}}{\frac{1}{2}}=\frac{\frac{8+3}{2}}{\frac{1}{2}}=\frac{\frac{11}{2}}{\frac{1}{2}}=\frac{11}{2} \times \frac{2}{1}=11}\end{array}

Hence Devon needs 11 sittings

3 0
3 years ago
The value is $400 invested at 4% interest compounded monthly for 10 years.
svetoff [14.1K]
The equation for interest is 
'Initial amount (interest rate in decimal form) ^ times compounded EX: years'

your equation would be
400(1.04)^10

which equals 592.097713 (not rounded)
8 0
4 years ago
ben has 3 cookies for each guest plus a 5 extra cookies for each guest write a word problem to solve this
quester [9]

Answer: Three plus Five equals Eight or 3= a · 5= 5a

Step-by-step explanation:

7 0
3 years ago
What answer is it and how would I solve it
Nataly_w [17]
The answer to the equation is c
7 0
3 years ago
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