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3 years ago

HELP PLZ

Mathematics

1 answer:

Alja [10]3 years ago

3 0

B. the number of accidents was produced by 0.67 per every month

would most like be your answer.

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How do you answer rhis

Igoryamba

You answer this problem bye cost i already got my answer though thanks for trying...

5 0

3 years ago

If a+b=9 and ab=18,find the value of a and b.

Blizzard [7]

Answer:

Given:

a + b = 9

=> a = 9 - b

Given:

a x b = 18

=> (9 - b) x b = 18

=> 9b - b^2 = 18

=> b^2 - 9b + 18 = 0

=> (b - 3)(b - 6) = 0

=> b = 3 => a = 6

=> b = 6 => a = 3

Hope this helps

3 0

4 years ago

In Jessi's neighborhood, the ratio of families with kids to families without

romanna [79]

Answer:

there are 15 families with kids and 10 families without kids.

Step-by-step explanation:

what you would do is divide 15 by 5 and then add 5 + 5 + 5 which would be 15. so there are 15 families with kids. to get the other one then you would add 5 + 5 which is 10

3 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 circular fountain has a diameter of 8 feet there is a flower garden planted around the fountain. if the garden extends 12 feet

LuckyWell [14K]

Answer:

753.98 square feet

Step-by-step explanation:

Diameter of the fountain =8 inches

Therefore Radius of the fountain, =8/2=4 Inches

The flower garden extends 12 feet beyond the fountain, therefore:

Radius of the flower garden=4+12 =16 Inches

Let the fountain be the inner circle with radius r and the larger circle which includes the garden have a radius, R. Then:

Area of the flower garden $=\pi (R^2-r^2)$

$=\pi (16^2-4^2)\\=240\pi\\=753.98$ square feet$

7 0

3 years ago