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2 years ago

Anybody willing to help me?

Mathematics

2 answers:

MissTica2 years ago

7 0

Answer:
A. 64.7
Step-by-step explanation:
This is a trig question. So you know that you will be using either Sine, Cosine, or Tangent. Since you are dealing with a obtuse and a opposite side to the angle that measures 18 degrees. So it would be Opposite over Hypothenuse which means you are using Sine. With So your equation would look like this Sine (18) = 20/x. After that you will input Sine (18) into the calculator and get 0.30901699437. Then you can multiply x on both sides. Making your new Equation 0.30901699437x=20. Then you can divide 0.30901699437 on both sides giving you 64.72282. When rounded to the nearest tenth it gives you 64.7. Making your answer A.

eimsori [14]2 years ago

6 0

Answer:

Step-by-step explanation:

Taking the sine value of the given angle :

sin 18° = 20/x
0.31 = 20/x
x = 20/0.31
x = <u>64.7</u> (nearest value)

Read more about scale ratio at:

brainly.com/question/12416132

#SPJ1

8 0

2 years ago

Any expression with a __________ exponent is equal to ________.

Elza [17]

1st one: zero
2nd one: one

6 0

4 years ago

Read 2 more answers

How do you work out the rate, time and principal from the compound interest formula?

wlad13 [49]

Answer:

Part 1) $P=A/(1+\frac{r}{n})^{nt}$ (see the explanation)

Part 2) $r=n[\frac{A}{P}^{1/(nt)}-1]$ (see the explanation)

Part 3) $t=log(\frac{A}{P})/[(n)log(1+\frac{r}{n})]$ (see the explanation)

Step-by-step explanation:

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

Part 1) Find the Principal P

The values of A,r,n and t are given

Isolate the variable P

$A=P(1+\frac{r}{n})^{nt}$

Divide both side by $(1+\frac{r}{n})^{nt}$

$P=A/(1+\frac{r}{n})^{nt}$

Part 2) Find the rate r

The values of A,P,n and t are given

Isolate the variable r

$A=P(1+\frac{r}{n})^{nt}$

Divide both sides by P

$\frac{A}{P} =(1+\frac{r}{n})^{nt}$

Elevated both sides to 1/(nt)

$\frac{A}{P}^{1/(nt)} =(1+\frac{r}{n})$

subtract 1 both sides

$\frac{A}{P}^{1/(nt)}-1 =\frac{r}{n}$

Multiply by n both sides

$r=n[\frac{A}{P}^{1/(nt)}-1]$

Part 3) Find the time t

The values of A,P,r and n are given

Isolate the variable t

$A=P(1+\frac{r}{n})^{nt}$

Divide both sides by P

$\frac{A}{P} =(1+\frac{r}{n})^{nt}$

Apply log both sides

$log(\frac{A}{P})=log(1+\frac{r}{n})^{nt}$

Apply property of exponents

$log(\frac{A}{P})=(nt)log(1+\frac{r}{n})$

Divide both side by $(n)log(1+\frac{r}{n})$

$t=log(\frac{A}{P})/[(n)log(1+\frac{r}{n})]$

3 0

3 years ago

What is 6 3/4 as an improper fraction

Kobotan [32]

<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ Improper fractions are sometimes called 'top heavy fractions'

You'll see why below

Multiply 6 by 4:

6 x 4 = 24

Add 3 :

24 + 3 = 27

The improper fraction would be 27/4

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

8 0

3 years ago

Read 2 more answers

If Karen finished watching a movie at 1:10 pm, and it lasted 1 hour 38 minutes, then what time did she start the movie

expeople1 [14]

Answer:

11.32pm

Step-by-step explanation:

1.10pm - 1hr = 12.10pm

12.10pm - 38min = 11.32pm

6 0

3 years ago

Read 2 more answers