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3 years ago

Which algebraic equation models the English sentence, a number subtracted from 8 is equal to 4?

Mathematics

2 answers:

bezimeni [28]3 years ago

8 0

Answer:

8-x = 4

Step-by-step explanation:

took the test and got it correct

kykrilka [37]3 years ago

3 0

let's x represent a number

8-x = 4

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Can you please help me?

Harlamova29_29 [7]

Answer: No

Step-by-step explanation: Because.

8 0

3 years ago

Read 2 more answers

The weight for crates of apples is normally distributed with a mean weight of 34.6 pounds and a standard deviation of 2.8 pounds

Tatiana [17]

Answer:

42.22% probability that the weight is between 31 and 35 pounds

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 34.6, \sigma = 2.8$

What is the probability that the weight is between 31 and 35 pounds

This is the pvalue of Z when X = 35 subtracted by the pvalue of Z when X = 31. So

X = 35

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

$Z = \frac{35 - 34.6}{2.8}$

$Z = 0.14$

$Z = 0.14$ has a pvalue of 0.5557

X = 31

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

$Z = \frac{31 - 34.6}{2.8}$

$Z = -1.11$

$Z = -1.11$ has a pvalue of 0.1335

0.5557 - 0.1335 = 0.4222

42.22% probability that the weight is between 31 and 35 pounds

6 0

3 years ago

When the definition of a function involves a fraction, the function is undefined at any value that would make the denominator of

QveST [7]

When the definition of a function involves a fraction, the function is undefined at any value that would make the denominator of the function is; a) 0

What is an Undefined Function?

A function that is a fraction is said to be undefined when the denominator is equal to zero. If there are variables in the denominator, the point at which the expression in the denominator is zero is the point where that function is undefined.

From the question, we want to know what the value of the denominator of a fraction will be to make that fraction undefined. From the definition above, it is clear that the value would be zero.

Read more about Undefined function at; brainly.com/question/13136492

#SPJ1

5 0

1 year ago

Five times the sum of a number and three is the same as three times the difference of twice the number and one what is the numbe

cupoosta [38]

Answer:

the number is 105

Step-by-step explanation:

5(x+3) = 3(2x - 1)

5x + 15 = 6x - 3

15 = 1x - 3

(15 + 3)

x = 18

3 0

2 years ago

All three sides of a triangle are initially 5.0 long. One of the triangle's sides is oriented horizontally. The triangle is scal

zlopas [31]

Answer:

h = 3.62

Step-by-step explanation:

First, as both triangles have the same angles we can use the relationship of areas and sides corresponding to similar triangles as follows:

$relation\ between\ areas=( relation\ between\ sides)^2\\\frac{0.7A}{A}=(\frac{s}{5})^2\\s= 5\sqrt0.7= 4.18$

Now we know that the new triangle has sides of 4.18. Then, as these triangles are equilateral we can use the Pythagorean Theorem to find the height:

$4.18^2=h^2+(\frac{4.18}{2})^2\\h=\sqrt (4.18^2-2.09^2)=3.62 m\\h= 3.62$

Finally the height of this new triangle is 3.62 cm

6 0

3 years ago