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Yuliya22 [10]
3 years ago
7

Need help please thanks

Mathematics
2 answers:
dmitriy555 [2]3 years ago
6 0
A is the answer cause 5x6 equals 30 and you have to multiple the top by 6 two which will give you 12 (2x6)
julia-pushkina [17]3 years ago
5 0

Answer:

12 because 12/30 is equal to 40% and 2/5 is is equal to 40% too

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Cuanto es la raíz cuadrada de 3
marshall27 [118]
La raíz cuadrada de 3 es 1.73
7 0
3 years ago
EXPERT HELP: DON'T GUESS and SHOW YOU WORK
Tamiku [17]

Answer:

3

Step-by-step explanation:

the mean is 103, as a result you must find the distance.

from 100 to 103 is 3

from 194 to 103 is 1

from 107 to 103 is 4

Then find the mean again youll get 18/6 which is 3

3 0
2 years ago
Read 2 more answers
Bonnie planted a garden in her backyard. Both the garden and the backyard are right triangles. The garden is proportional to the
Mandarinka [93]
You can find the area of Bonnue's backyard by comparing the hypotenuse of the garden to the hypotenuse of the back yard.  If the hypotenuse of the garden is 10 (with the side lengths being 6, 8 and 10 - the longest is always the hypotenuse) and the hypotenuse of the back yard is 30, this is a scale factor of 3 (3 times longer).

This means the other two sides would also be 3 times longer.

6 yards x 3 = 18
8 yards x 3 = 24

To find the area using these dimensions, you will use the formula for finding the area of a triangle.

A = 1/2bh
A = 1/2 x 18 x 24
A = 216 square yards

The area of the backyard is 216 square yards.
8 0
3 years ago
An electric sale gives a reading equal to the true weight plus a random error that isnormally distributed with mean 0 and standa
Pepsi [2]

Answer:

a) 95% confidence interval estimate of the true weight is (3.026, 3.274)

b) 99% confidence interval estimate of the true weight is (2.944, 3.356)

Step-by-step explanation:

Confidence Interval can be calculated using M±ME where

  • M is the mean of five successive weightings (3.150)
  • ME is the margin of error from the mean

And margin of error (ME) can be calculated using the formula

ME=\frac{t*s}{\sqrt{N} } where

  • t is the corresponding statistic in the given confidence level and degrees of freedom(t-score)
  • s is the standard deviation of the random error (0.1)
  • N is the sample size (5)

Using the numbers 95% confidence interval estimate of the true weight is:

3.150±\frac{2.776*0.1}{\sqrt{5} }≈3.150±0.124

And 99% confidence interval estimate of the true weight is:

3.150±\frac{4.604*0.1}{\sqrt{5} }≈3.150±0.206

3 0
3 years ago
What is (-8)to the power of 2 equal??
Vladimir79 [104]
(-8)^2
(-8)(-8)
64

Hope this helps!
3 0
2 years ago
Read 2 more answers
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