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krok68 [10]
3 years ago
12

PLEASE HELP ME OUT I’ll GIVE YOU BRAINLIEST ASAP

Mathematics
2 answers:
Natalija [7]3 years ago
4 0
10 because x+x = 20
a+b=c
Ahat [919]3 years ago
3 0

Answer:

x ≈ 14.1

Step-by-step explanation:

Use Pythagorean theorem.

2x² = 20²

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There are 4 white marbles and 6 blue marbles in a bag. Jamie will randomly pick two marbles out of the bad without replacing the
zepelin [54]

Step-by-step explanation:

Total marbles = 10

No of white marbles = 4

No of blue marbles = 6

Probability of 2 white marbles = 4/ 10 = 2/5

8 0
3 years ago
A right triangle has coordinates A(6, 0), B(0, 0), and C(0, 8). What is the perimeter of the triangle?
dimulka [17.4K]

Answer:

C

Step-by-step explanation:

From the given coordinates

A(6, 0), B(0, 0) then AB = 6 - 0 = 6

B(0, 0), C(0, 8) then BC = 8 - 0 = 8

To calculate AC use Pythagoras' theorem on the right triangle formed

AC² = AB² + BC² = 6² + 8² = 36 + 64 = 100

Take the square root of both sides, hence

AC = \sqrt{100} = 10

Perimeter = AB + BC + AC = 6 + 8 + 10 = 24 → C

5 0
3 years ago
The following are quiz scores: 85, 88, 89, 96, 91, 77, 79, 98, 86, 99. What is the standard deviation of the given test scores?
ArbitrLikvidat [17]

Answer:

7.1

Step-by-step explanation:

- Find mean

- For each number you subtract the mean and square the result.

- Work out the mean of those squared differences and find square root of that.

- Hope that helped! Let me know if you need further explanation.

5 0
3 years ago
Can some one hel me plz.
alekssr [168]
1.4,6,8
2.3,7,1 that how you get your answer
5 0
3 years ago
Find the exact value in the picture above
fomenos

Answer:

A and B

Step-by-step explanation:

You can take a look at a unit circle to find the solution to this problem (see below).

\cos^{-1}\left( \dfrac{\sqrt{2}}{2} \right)= \\\\\\\pm \dfrac{\pi}{4}= \\\\\\\dfrac{\pi}{4}, \dfrac{7\pi}{4}

Hope this helps!

7 0
3 years ago
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