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tresset_1 [31]
3 years ago
6

PLEASE HELP ME SOLVE THIS! -2.7f+0.7f-16-6

Mathematics
2 answers:
Klio2033 [76]3 years ago
5 0

Answer:

-2.4f - 21

Step-by-step explanation:

please mark brainliest

yawa3891 [41]3 years ago
4 0
-2.7 + 0.7- 16 - 6= -24
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Auden rolled two number cubes and recorded the results. What is the experimental probability that the sum of the next two number
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Francis walks 300 meters each morning.How many millimeters does he walk in a week
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3 years ago
A stadium has 52,000 seats. Seats sell for $35 in section A , $30 in section B, and $25 in section C. The number of seats in sec
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4 years ago
The lengths of the sides of a triangle are 11.25 inches, 9.25 inches, and 10.25 inches. What is the perimeter of the triangle?
solong [7]

Perimeter of the triangle is 30.75 inches.

Step-by-step explanation:

  • Step 1: Given sides of the triangle = 11.25 in, 9.25 in, 10.25 in
  • Step 2: Formula for perimeter of triangle = length of sides of the triangle
  • Step 3: Substitute in the formula

Perimeter = 11.25 + 9.25 + 10.25

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8 0
3 years ago
A fourth grade class of 28 students is given a standardized math test. The mean score of the 12 boys is 25 with a standard devia
Mashcka [7]

Answer:

The standard error for the sampling distribution is 1.323.

Step-by-step explanation:

Let <em>X</em> = scores of girls and <em>Y</em> = scores of boys.

The information provided is:

\bar x=24\\s_{x}=4\\n_{x}=16\\\bar y=25\\s_{y}=3\\n_{y}=12

As the population standard deviations are not known, use a pooled standard deviation to estimate the standard error of the sampling distribution.

The formula of pooled standard deviation is:

S_{p}=\sqrt{\frac{s_{x}^{2}}{n_{x}^{2}}+\frac{s_{y}^{2}}{n_{y}^{2}}}

Compute the standard error for the sampling distribution as follows:

SE=\sqrt{\frac{s_{x}^{2}}{n_{x}^{2}}+\frac{s_{y}^{2}}{n_{y}^{2}}}=\sqrt{\frac{4^{2}}{16}+\frac{3^{2}}{12}}=\sqrt{1+\frac{9}{12}}=\sqrt{\frac{21}{12}}=1.323

Thus, the standard error for the sampling distribution is 1.323.

7 0
3 years ago
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