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3 years ago

Number 2 please. Please explain how you got the answer please

Mathematics

1 answer:

bija089 [108]3 years ago

4 0

Basically when you divide a decimal number with a number you then find out where the decimal of that number goes

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In △ABC, m∠A=44°, m∠B=48°, and a=25. Find c to the nearest tenth.

Nookie1986 [14]

Answer:

=36.0

Step-by-step explanation:

We use the sine rule to find the missing sides as follows;

Lets find the missing angle C by using the summation of interior angles in a triangle.

C=180-(44+48)

=88°

Then,

a/Sin A=c/Sin C

25/Sin 44=c/Sin 88

c=(25 Sin 88)/Sin 44

c=35.97

The side c=36.0 to the nearest tenth.

8 0

3 years ago

Write the polar form of a complex number in standard form for <img src="https://tex.z-dn.net/?f=8%5Bcos%28%5Cfrac%7B%5Cpi%7D%7B2

laila [671]

Answer:

Solution : 8i

Step-by-step explanation:

We can use the trivial identities cos(π / 2) = 0, and sin(π / 2) = 1 to solve this problem. Let's substitute,

$8\left[cos\left(\frac{\pi }{2}\right)+isin\left(\frac{\pi \:}{2}\right)\right]$ = $8\left(0+1i\right)$

And of course 1i = i, so we have the expression 8(0 + i ). Distributing the " 8, " 8( 0 ) = 0, and 8(i) = 8i, making the fourth answer the correct solution.

7 0

3 years ago

Factor the expression <br> 5x^2 -22x -15

Murljashka [212]

$5x^2-22x-15=5x^2\underbrace{-25x+3x}_{-22x}-15\\\\=(5x^2-25x)+(3x-15)=5x(x-5)+3(x-5)\\\\=\boxed{(x-5)(5x+3)}$

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3 years ago

1. Sarah purchased her first car and her goal is to pay it off as soon as possible. Some months she pays

Aleksandr-060686 [28]

Answer:

Step-by-step explanation:

6 0

3 years ago

Product of 7.69×5 be greater or less than its estimate of 8×5?

spayn [35]

The product is a bit less than the estimate. In fact, 7.69 is less than 8, and if you start with an equality, i.e.

$7.69 < 8$

you can multiply both sides by a positive number, and the inequality will still hold:

$7.69 \cdot 5 < 8 \cdot 5$

8 0

3 years ago