Mathematics: I need help on this please

I need help on this please - id7902665, jnglauda

zmirandalove100

03.02.2022

$\frac{3}{7}$ × $\frac{5}{4}$

Step-by-step explanation:

Step 1. Turn the second fraction upside down (it becomes a reciprocal):

$\frac{4}{5}$ becomes $\frac{5}{4}$

Step 2. Multiply the first fraction by that reciprocal:

$\frac{3}{7}$ × $\frac{5}{4}$ = ?

3 x 5 = 15

7 x 4 = 28

$\frac{3}{7}$ × $\frac{5}{4}$ = $\frac{15}{28}$

Step 3. Simplify the fraction:

$\frac{15}{28}$ = $\frac{15}{28}$ You can't simplify this fraction

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cutebabyolivia

06.08.2020

x is 10.66

Step-by-step explanation:

What are complementary angles?

They are angles that up to 90

So we have Sin A and Cos B

4x + 10+ 2x + 16= 90

collect like terms

6x+ 26= 90

6x= 90-26

6x= 64

x= 64/6

x= 10.66

Hence the value of x is 10.66

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