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oksian1 [2.3K]
2 years ago
10

Find the value of x.

Mathematics
2 answers:
ziro4ka [17]2 years ago
7 0
Use math-way or desmos it should help to find the value of x
anygoal [31]2 years ago
5 0
Just do each number to they square root
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3<br> Solve y - 18 = -3.<br> a) 15<br> 6<br> b) 21<br> 9<br> Oc) -21<br> 12<br> d) -15
Phantasy [73]
The answer d)
Explaining
y = -18 + 3
y= -15
8 0
3 years ago
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O is the center of the regular octagon below. Find its area. Round to the nearest tenth
Sedbober [7]

Answer:229.1

Step-by-step explanation: to much work I thought to hard that’s the answer your welcome buddy

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2 years ago
Which table contains ordered pairs that lie in the graph of a line but not in the graph of a linear function?
Marizza181 [45]

Answer:

B)

Step-by-step explanation:

Again, in this case, you are looking for the undefine <em>rate of change</em> [<em>slope</em>], meaning that there are repetitive x-coordinates. With that being said, you have your answer.

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3 0
3 years ago
Convert the complex number z = -12 + 5i from rectangular form to polar form.​
Paha777 [63]

Answer:

z=13(\cos 157\degree +i\sin157\degree)

Step-by-step explanation:

The given complex number is

z=-12+5i

The polar form of this complex number is;

z=r(\cos \theta +i\sin \theta), where

r=\sqrt{(-12)^2+5^2}

r=\sqrt{144+25}=\sqrt{169}=13

and

\theta =\tan^{-1}(\frac{5}{-12})

This implies that;

\theta=157\degree to the nearest degree.

Hence the polar form is

z=13(\cos 157\degree +i\sin157\degree)

7 0
3 years ago
Marvin used the money he received from
Kay [80]

Answer:

<em>Correct choice: C. $320</em>

Step-by-step explanation:

<u>Simple Interest</u>

Definition: Interest calculated on the original principal only of a loan or on the balance of an account.

Unlike compound interest where the interest earned in the compounding periods is added to the new principal, simple interest only considers the principal to calculate the interest.

The interest earned is calculated as follows:

I=P.r.t

Where:

I = Interest

P = initial principal balance

r = interest rate

t = time

Marving is saving money in a savings account with a simple interest rate of r=7.5%=0.075. It's known that after t=12 years, the account had earned $288 interest. Substituting in the formula:

288 = P*0.075*12

Calculating:

288 = 0.9P

Dividing by 0.9:

P = $320

Correct choice: C. $320

7 0
3 years ago
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