All categories

2 years ago

MATH PLEASE HELP

Mathematics

1 answer:

BlackZzzverrR [31]2 years ago

5 0

Answer:

$122.10

Step-by-step explanation:

Note cm is changed to ft

Perimeter of the garden:

P = 2(14 + 23) = 74 ft

The price of fencing:

74*$1.65 = $122.10

You might be interested in

−4(m+6)=−8 plz answer

dangina [55]

Answer:Divide both sides by the numeric factor on the left side, then solve.

−

Step-by-step explanation:

5 0

3 years ago

A board is 48 in long. It must be divided into 4 pieces of equal length, and each cut will cause a waste of 3/16 in. How long wi

NISA [10]

Answer:

12 pieces

Step-by-step explanation:

Total length of the board = 48 in

It must be divided into 4 pieces of equal length

This means, there will be 3 cut to have 4 pieces

Each cut will cause a waste of 3/16 in.

Total waste = 3 cut × 3/16 in

= (3*3)/16

= 9/16 in

Length of board remaining = Total length of the board - Total waste

= 48 - 9/16

= (768-9)/16

= 759/16 in

How long will each piece be after the cuts are made?

Length of each piece after the cut = Length of board remaining / 4

= 759/16 ÷ 4

= 759/16 × 1/4

= 759/64

= 11.859375

Approximately 12 pieces to the nearest whole number

7 0

2 years ago

Suppose that you are an elementary school teacher and you are evaluating the reading levels of your students. You find an indivi

aleksklad [387]

Answer:

The child's reading level is at the 3.4th percentile.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

You do some research and determine that the reading rates for their grade level are normally distributed with a mean of 90 words per minute and a standard deviation of 24 words per minute.

This means that $\mu = 90, \sigma = 24$

You find an individual that reads 46.4 word per minute. At what percentile is the child's reading level?

The percentile is the p-value of Z when X = 46.4, multiplied by 100. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{46.4 - 90}{24}$

$Z = -1.82$

$Z = -1.82$ has a p-value of 0.034.

0.034*100 = 3.4

The child's reading level is at the 3.4th percentile.

6 0

2 years ago

bill can paint a room in 6 hours, but bills father could do it in four. if the two work together, how long would it take them to

aleksley [76]

Answer:

3 hrs thats my anwser

Step-by-step explanation:

brainliest if right

3 0

3 years ago

-4x - 5y=-7 -x+5y=17

ahrayia [7]

Answer:

X=-2,y=3

Step-by-step explanation:

8 0

3 years ago