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4 years ago

Perform the indicated operation 3+(-4)

Mathematics

2 answers:

Degger [83]4 years ago

8 0

3+(-4) means 3-4, so the answer is -1. Hope it helped!

Viefleur [7K]4 years ago

3 0

3 + (-4) is the same thing as 3 - 4.

3 - 4 = -1

Hope this helped :)

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Q1: Write the sum of numbers as a product of their GCF and another sum. 24+16 Q2: Write the sum of numbers as a product of their

Anastaziya [24]

Answer:

for the points

Step-by-step explanation:

u dumb tbh

7 0

3 years ago

What is solute<br><img src="https://tex.z-dn.net/?f=2x%20%5E%7B2%7D%20%20-%2032%20%2B%203x%20%7B%7D%5E%7B2%7D%20" id="TexFormula

lawyer [7]

Answer:

5 x^2 - 32

Step-by-step explanation:

Simplify the following:

3 x^2 + 2 x^2 - 32

Grouping like terms, 3 x^2 + 2 x^2 - 32 = (2 x^2 + 3 x^2) - 32:

(2 x^2 + 3 x^2) - 32

2 x^2 + 3 x^2 = 5 x^2:

Answer: 5 x^2 - 32

6 0

4 years ago

The average student loan debt for college graduates is $25,150.

Aleks04 [339]

Using the normal distribution, it is found that:

a) $X \approx N(25150, 12050)$

b) There is a 0.5859 = 58.59% probability that the college graduate has between $14,200 and $33,950 in student loan debt.

c) Low: $23,519.65, High: $26,580.35.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by:

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

The z-score measures how many standard deviations the measure is above or below the mean.

Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

$\mu = 25150, \sigma = 12050$ .

Hence the distribution of X can be described as follows:

$X \approx N(25150, 12050)$

The probability that the college graduate has between $14,200 and $33,950 in student loan debt is the <u>p-value of Z when X = 33950 subtracted by the p-value of Z when X = 14200</u>, hence:

X = 33950:

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

$Z = \frac{33950 - 25150}{12050}$

Z = 0.73

Z = 0.73 has a p-value of 0.7673.

X = 14200:

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

$Z = \frac{14200 - 25150}{12050}$

Z = -0.91

Z = -0.91 has a p-value of 0.1814.

0.7673 - 0.1814 = 0.5859.

There is a 0.5859 = 58.59% probability that the college graduate has between $14,200 and $33,950 in student loan debt.

Considering the symmetry of the normal distribution, the middle 10% is between the 45th percentile(X when Z = -0.127) and the 55th percentile(X when Z = 0.127), hence:

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

$-0.127 = \frac{X - 25150}{12050}$

X - 25150 = -0.127(12050)

X = $23,519.65.

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

$0.127 = \frac{X - 25150}{12050}$

X - 25150 = 0.127(12050)

X = $26,580.35.

More can be learned about the normal distribution at brainly.com/question/4079902

#SPJ1

5 0

2 years ago

Johnny scored a total of 130 points in basketball this season. He scored 117 of those points in the regular season, and the rest

Dimas [21]

Answer:

90%

can u plz make me brainliest?

Step-by-step explanation:

$\frac{117}{130} = \frac{x}{100} \\\\Cross multiply \\ \\11700=130x\\\\Divide on both sides by 130\\\\x=90$

8 0

3 years ago

The area of trapezium is 352 cm2. The distance between the parallel

Naddik [55]

Answer:

18cm

Step-by-step explanation:

Area of Trapezium = 1/2(a + b) h

Where:

A = 352cm^2

h = distance between parallel sides = 16cm

a = 25cm

b = ?

352 = 1/2 (25 + b) 16

352 = (25 + b) 8

352 = 200 + 8b

352 - 200 = 8b

152 = 8b

152/8 = b

19= b

→b = 19cm

The other parallel side is 19cm.

5 0

3 years ago