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arsen [322]
3 years ago
15

1. Find the values of x.

Mathematics
1 answer:
yawa3891 [41]3 years ago
7 0

Answer:

x = 9√3

Step-by-step explanation:

x^2 = 18^2 - 9^2

x^2 = 324 - 81

x^2 = 243

x = 9√3

You might be interested in
Solve x in the diagram below
zzz [600]

A straight line is 180°, so you add these two angles together because they make a straight line:

3x° + 75° = 180°        

To find "x", isolate/get the variable "x" by itself in the equation. Subtract 75° on both sides

3x° + 75° - 75° = 180° - 75°

3x° = 105°      Divide 3 on both sides to get "x" by itself

x = 35°

PROOF

3x° + 75° = 180°   Substitute/plug in 35 into "x" since x = 35°

3(35)° + 75° = 180°

105° + 75° = 180°

180° = 180°

8 0
4 years ago
PLEASE HELP WITH MIDDLE SCHOOL MATH 1 Q THATS MULTIPLE CHOICE I NEED HELP PLEASE FOR BRAINLIEST*(08.06 MC)
Bess [88]
All you have to do is try out both of the equations with each of the different choices.

200 = 45 (3) + 20
200 = 135 + 20
200 = 155

200 = 35 (3) + 60
200 = 105 + 60
200 = 165
So, this one does not work.
--------------------------------------------
180 = 45 (3) + 20
180 = 135 + 20
180 = 155

180 = 35 (3) + 60
180 = 105 + 60
180 = 165
So, this one does not work.
----------------------------------------------
200 = 45 (4) + 20
200 = 180 + 20
200 = 200

200 = 35 (4) + 60
200 = 140 + 60
200 = 200
So this one works.

The answer would be C.

I hope this helps and I'm sorry it took so long!
7 0
4 years ago
Read 2 more answers
Isaac records the following temperatures (in degrees Fahrenheit) at noon during one week:
Alecsey [184]

Answer:

first, we put them in order

78,[80],83,(85),86,[87],90

Q1 = 80

Q2 (median) = 85

Q3 = 87

Interquartile range (IQR) = Q3 - Q1 = 87 - 80 = 7 <==

Hope this helps!

5 0
3 years ago
$800 at 4.25% simple interest for 6 years
charle [14.2K]
A = $992.00

(I = A - P = $192.00)

Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 4%/100 = 0.04 per year.

Solving our equation:
A = 800(1 + (0.04 × 6)) = 992 
A = $992.00

The total amount accrued, principal plus interest, from simple interest on a principal of $800.00 at a rate of 4% per year for 6 years is $992.00.
5 0
3 years ago
If Donald were two times as old as he was five years ago, he will be ten less than two times his age now. How old is Donald?
Zigmanuir [339]

Answer: The answer is 5

Step-by-step explanation:

2(n-5) - 10 +2N

5 0
4 years ago
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