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2 years ago

Do you know what is 1/5 of 35

Mathematics

2 answers:

deff fn [24]2 years ago

7 0

Answer:

Step-by-step explanation:

Because 35/5=7 so 1/5 of 35 would = 7

VashaNatasha [74]2 years ago

7 0

Step-by-step explanation:

<h2>1/5 of 35</h2><h2>divide 35 by 5 = 7</h2><h2>7 ✖️ 1=7</h2><h2>your answer is 7</h2>

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Factor this expression:<br><br> mn - 4m - 5n + 20

andrey2020 [161]

Answer:

(m-5) (n-4)

Step-by-step explanation:

mn - 4m - 5n + 20

We will factor by grouping

mn -5n -4m +20

Factor an n out of the first 2 terms and a -4 out of the last 2 terms

n (m-5) -4(m-5)

Now factor out a m-5

(m-5) (n-4)

6 0

2 years ago

If x+1/x= 3, then prove that m^5+1/m^5= 123

alina1380 [7]

9514 1404 393

Explanation:

We can start with the relations ...

$\displaystyle\left(x+\frac{1}{x}\right)^3=\left(x^3+\frac{1}{x^3}\right)+3\left(x+\frac{1}{x}\right)\\\\\left(x+\frac{1}{x}\right)^5=\left(x^5+\frac{1}{x^5}\right)+5\left(x^3+\frac{1}{x^3}\right)+10\left(x+\frac{1}{x}\right)\\\\\textsf{From these, we can derive ...}\\\\x^5+\frac{1}{x^5}=\left(x+\frac{1}{x}\right)^5-5\left(\left(x+\frac{1}{x}\right)^3-3\left(x+\frac{1}{x}\right)\right)-10\left(x+\frac{1}{x}\right)$

$\displaystyle x^5+\frac{1}{x^5}=\left(x+\frac{1}{x}\right)^5-5\left(x+\frac{1}{x}\right)^3+5\left(x+\frac{1}{x}\right)\right)\\\\x^5+\frac{1}{x^5}=3^5 -5(3^3)+5(3)\\\\=((3^2-5)3^2+5)\cdot3=(4\cdot9+5)\cdot3=(41)(3)\\\\=\boxed{123}$

7 0

2 years ago

Convert to pints 7 quarts

Margaret [11]

14 pints. You multiply by 2. :-)

8 0

2 years ago

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I’m not sure how to do this please help

Nikolay [14]

Answer:

B :step 2 she didnt collect all the like terms and calculate

Step-by-step explanation:

first rewrite remove all ( )Parentheses

2nd collect all like terms and calculate

a^4 + 7a -16 -12^a^3 + 5a -3

a^4 + 12a - 19 - 12a^3 ( Like terms are 7a +5a and -16 +-3)

so she skipped the second step

3 0

2 years ago

How do you determine if the line segments are congruent

Gemiola [76]

You must calculate the length of the segments.

Suppose segments AB and CD
Being A (m, n), B (p, q) C(r,s) and D(t,u)
<span>
They are congruent if:

</span> $\boxed{(p-m)^2+(q-n)^2=(t-r)^2+(u-s)^2}$ <span>

</span>

4 0

2 years ago

Read 2 more answers