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Lostsunrise [7]
3 years ago
11

What is the value expression for |-8|

Mathematics
1 answer:
Alenkinab [10]3 years ago
8 0

Answer:

8

Step-by-step explanation:

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What is 5(h-4)=8?????????????????????
IRINA_888 [86]
5(h-4)=8\\
5h-20=8\\
5h=28\\
h=\dfrac{28}{5}
7 0
3 years ago
NEED HELP ASAPPP!!!! Get brainlist!
tangare [24]

Answer:

394.9 cm

Step-by-step explanation:

The formula for a cone's surface area is A = π r ( r + √r^2 + h^2 ).

r = radius

h = height

The Pythagorean theorem, a^2 + b^2 = c^2, will be needed to find the height.

Plug in the values.

a(unknown)^2 + 6^2 = 15^2

A + 36 = 255

255 - 36 = 189

√189 ≈ 13.7

Surface area formula, plug in the values.

A = 3.14 × 6 ( 6 + √6^2 + 13.7^2 )

*PEMDAS*

A = 3.14 × 6 ( 6 + √36 + 187.69 )

A = 3.14 × 6 ( 6 + √223.69 )

A = 3.14 × 6 ( 6 + 14.95 )

A = 3.14 × 6 ( 20.96 )

A = 3.14 × 125.76

A = 394.8864

*round to nearest tenth*

A = 394.9 cm

Hope this helps! :)

8 0
3 years ago
If p(a)=a^3-6a^2+11a-9 and p(a)=-3,find the value of a?​
Colt1911 [192]
Correct because if you do the math correctly you solve it
8 0
1 year ago
Solve (x-3)^2=5<br>give your solutions correct to 3 significant numbers​
Novosadov [1.4K]

Answer:

(x-3)^2=5=>

(x-3)=±square root of 5

x=+sqr.root5+3 or x=-sqr.root5+3

4 0
2 years ago
Amy has a box containing 6 white, 4 red, and 8 black marbles. She picks a marble randomly. It is red. The second time, she picks
Sladkaya [172]
After the 3rd pick we have: 4 white, 3 red and 8 black marbles.
The probability that the 4th marble is black is:
P ( Black ) = 8 / 15 = 0.5333
After the 4th pick we have: 4 white, 3 red and 7 black marbles.
P ( Red or Black ) = 10 / 14 = 5 / 7 = 0.7143
6 0
2 years ago
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