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3 years ago

PLEASE HELP MEEEEEEEEEEEEEEEEEEEEEE

Mathematics

1 answer:

dezoksy [38]3 years ago

6 0

45+35=80

100-80=20

360×20/100

72 so the answer is this and the formula E=T×%/100

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Simplify 1/4-7i to get a complex number in standard a + bi form.

Romashka [77]

Answer:

$\frac{1}{4-7i}=\frac{4}{65}+\frac{7}{65}i$

Step-by-step explanation:

we are given

$\frac{1}{4-7i}$

Firstly, we will get rid of imaginary term from denominator

so, we will multiply conjugate to both top and bottom term

$\frac{1}{4-7i}=\frac{1\times (4+7i)}{(4-7i)\times (4+7i)}$

$\frac{1}{4-7i}=\frac{4+7i}{4^2-(7i)^2}$

$\frac{1}{4-7i}=\frac{4+7i}{16+49}$

$\frac{1}{4-7i}=\frac{4+7i}{65}$

we can also write as

so, we get

$\frac{1}{4-7i}=\frac{4}{65}+\frac{7}{65}i$

7 0

3 years ago

Solve for y: 3y+4y=56

nydimaria [60]

Add 3y and 4y: 7y=56
Divide by 7: y=8

4 0

4 years ago

Hey can you please help me posted picture of question

lukranit [14]

C because there are 7 days in a week and Monday is one of them

6 0

3 years ago

Read 2 more answers

The isosceles triangle is a scale drawing of a flag.

Zolol [24]

Answer:

Scale factor = $\frac{1}{2}$

Step-by-step explanation:

Perimeter of the actual flag = 22 in.

Perimeter of the scale drawing of the flag = 11 in.

Since, perimeter of a triangle = Sum of all three sides of the given triangle

Therefore, scale factor of the drawing

= $\frac{\text{Measure of the side of drawing}}{\text{Measure of the side of actual}}$ = $\frac{\text{Perimeter of drawing}}{\text{Perimeter of actual}}$

= $\frac{11}{22}$

= $\frac{1}{2}$

Therefore, scale factor of the drawing will be $\frac{1}{2}$ .

Each side of the scaled triangle will be half of the actual triangle.

6 0

3 years ago

William had a board that was 5 ft. 3 in. long. He cut off a piece that was 2 ft. 8 in. long. How much board does he have left

Mrac [35]

All you have to do here is convert the mixed number measurements to inches. Because there are 12 inches in a foot, 5ft. 3in. becomes 63 inches. 2ft. 8in. becomes 32 inches. 63-32=31 inches, which is 2ft. 7in.

4 0

3 years ago