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4 years ago

Help! Answer in box is wrong

Mathematics

1 answer:

Mice21 [21]4 years ago

5 0

Answer:

are u in college?

Step-by-step explanation:

answer i got from m a t h w a y was 1

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Please help due in 3 minutes will give brainliest.

Ann [662]

It is number 3 like the 3rd option

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3 years ago

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Use the Distributive Property to expand this expression.

viktelen [127]

Answer:

C is the correct answer

Step-by-step explanation:

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3 years ago

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7 students have 5 blocks each. Which helps you find the total number of blocks? 7 - 5 7 ÷ 5 7 × 5 7 + 5

Ber [7]

Answer:

7 X 5

You use multiplacation to find the total number of blocks

7 0

3 years ago

Decide whether the pair of lines is parallel, perpendicular, or neither.

maw [93]

The lines are: B) Perpendicular

Step-by-step explanation:

we have to convert both lines in slope-intercept form to find slopes

So,

$3x - 6y = -13\\-6y = -3x-13\\\frac{-6y}{-6} = \frac{-3x-13}{-6}\\\frac{-6y}{-6} = \frac{-3x}{-6}+\frac{-13}{-6}\\y = \frac{1}{2} +\frac{13}{6}$

Let m1 be the slope of first line

$m_1 = \frac{1}{2}$

For the second line:

$18x + 9y = 5\\9y = -18x+5\\\frac{9y}{9} = \frac{-18x+5}{9}\\\frac{9y}{9} = \frac{-18}{9}x+\frac{5}{9}\\y = -2x+\frac{5}{9}$

Let m2 be the slope of line 2

So,

If the lines are parallel, their slopes are equal

If the lines are perpendicular, product of their slopes is -1

We can see that

$\frac{1}{2} * -2 = -1$

Hence,

The lines are: B) Perpendicular

Keywords: Slopes, Parallel lines

Learn more about slopes of lines at:

#LearnwithBrainly

6 0

3 years ago

A company has 10 male and 11 female employees, and needs to nominate 2 men and 2 women for the company bowling team. How many di

Anvisha [2.4K]

2475 different teams can be formed.

Combination is the way in which items can be selected from a collection. If we have n total objects and r objects want to be selected, the number of combinations is:

$C(n,r)=\frac{n!}{(n-r)!(r)!}$

Since we need to nominate 2 men from a company of 10 males, the number of ways this can be done = $C(10,2)=\frac{10!}{(10-2)!(2)!} =45\ ways$

Also, we need to nominate 2 women from a company of 11 females, the number of ways this can be done = $C(10,2)=\frac{11!}{(11-2)!(2)!} =55\ ways$

Therefore the total number of different teams that can be formed = 45 ways * 55 ways = 2475 ways

Find more at: brainly.com/question/8018593

3 0

3 years ago