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amm1812
4 years ago
7

Please help asap i will mark branlist promise

Mathematics
1 answer:
Sergeeva-Olga [200]4 years ago
8 0
The answer is C, 2.50t+330 = 3t+225
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Peter is making an "X marks the spot" flag for a treasure hunt. The flag is made of a square white flag with sides of 121212 inc
My name is Ann [436]
He will need 17 inches of ribbon.

The diagonal splits the square into two right triangles.  We can then use the Pythagorean theorem to find the length of the diagonal (the hypotenuse of the triangle):

12² + 12² = x²
144 + 144 = x²
288 = x²

Take the square root of both sides:
√288 = √x²
16.97 = x
17≈x
8 0
4 years ago
From a sample with n=32, the mean duration of a geyser's eruption is 3.81 minutes and the standard deviation is 1.07 minutes. Us
Damm [24]
Notice that

1.67=3.81-2\times1.07
5.95=3.81+2\times1.07

This means you are looking for

\mathbb P(1.67

Chebyshev's theorem states that for any constant k>0,

\mathbb P(|X-\mu|

which means

\mathbb P(1.67

In other words, at least 75% of the geysers will have eruptions lasting between 1.67 and 5.95 minutes. Out of 32 geysers, then, one can expect at least 24 of them to have eruptions with between these durations.
5 0
3 years ago
Write 125 as a repeated multiplication 5s. Then write it as a power.
Maru [420]

Answer:

125 = 5 * 5 * 5 = 5^3

Step-by-step explanation:

125 is equal to 5 times 5 times 5, and a power is a way to write repeated multiplication, just by saying what number it is and the putting a ^ sign and then saying how many times there is that number. There is 5 three times, so the power is 5^3.

7 0
3 years ago
Read 2 more answers
Write each phrase as a variable expression <br> 25 less than a number
Andrew [12]

Answer:

25 < number

Step-by-step explanation:

hope it will help you

4 0
3 years ago
Phred has already graded 40 papers and he still needs to grade more. Write an equation for how many papers he is grading if he c
vladimir2022 [97]

y=4x+40

x represents the number of minutes

y is the total

40 because he already graded 40 papers, and 4x because that's how many phred grades times the number of minutes

5 0
4 years ago
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