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3 years ago

What is 7 times (12+8)-6

Mathematics

2 answers:

Soloha48 [4]3 years ago

7 0

The answer is 134. :)

Alexandra [31]3 years ago

3 0

Answer:

134

Step-by-step explanation

1) 7(12+8)-6

2) 7*20-6

3) 140-6=134

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Maria is ordering copy paper for her office. The office is low on white paper and on blue paper. She will pay $3.50 per ream of

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6 reams of white paper and 4 reams of blue paper

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3 years ago

Use the quadratic formula to solve the equation -3x2-x-3=0

Novosadov [1.4K]

Answer:

$x=\frac{1+\sqrt{35}i}{-6}\,\, and\,\, x=\frac{1-\sqrt{35}i}{-6}\\$

Step-by-step explanation:

the quadratic formula is:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

a= -2, b = -1 and c =-3

Putting values in the formula

$x=\frac{-(-1)\pm\sqrt{(-1)^2-4(-3)(-3)}}{2(-3)}\\x=\frac{1\pm\sqrt{-35}}{-6}\\x=\frac{1+\sqrt{-35}}{-6}\,\, and\,\, x=\frac{1-\sqrt{-35}}{-6}\\We\,\, know \,\,that \,\,\sqrt{-1} = i \\x=\frac{1+\sqrt{35}i}{-6}\,\, and\,\, x=\frac{1-\sqrt{35}i}{-6}\\$

So, $x=\frac{1+\sqrt{35}i}{-6}\,\, and\,\, x=\frac{1-\sqrt{35}i}{-6}\\$

5 0

3 years ago

Read 2 more answers

Which translation is used to map triangle ABd onto triangle IGH?

Archy [21]

Answer:

Six units to the right. Answer C

Step-by-step explanation:

The image is IGH, which is the triangle ABD shifted to the right 6 units

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4 years ago

Write a verbal statement that represents the expression h ÷ 8.

ElenaW [278]

Here's two ways you could write h÷8 in a verbal statement:
1. The quotient of a number and 8.
OR
2. A number divided by 8.

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3 years ago

he temperature at any random location in a kiln used in the manufacture of bricks is normally distributed with a mean of 925 and

Leviafan [203]

Answer:

The proportion of bricks that crack during the firing process is 0.0001 = 0.01%.

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 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.

Mean of 925 and a standard deviation of 60 degrees.

This means that $\mu = 925, \sigma = 60$