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3 years ago

Simplify the expression.

Mathematics

1 answer:

natulia [17]3 years ago

6 0

Just subtract 6 from 18 and the answer is twelve 12.

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The position of an open-water swimmer is shown in the graph. The shortest route to the shoreline is one that is perpendicular to

Stolb23 [73]

Answer:

Step-by-step explanation:

To define the perpendicular line we need to first know the slope of the reference line graphed.

m=(y2-y1)/(x2-x1) we have points (0,5) and (2,1)

m=(1-5)/(2-0)

m=-4/2

m=-2

For lines to be perpendicular their slopes must satisfy

m1m2=-1, we have a line with a slope of -2 so

-2m=-1

m=1/2, so our perpendicular line is so far

y=x/2+b, it must have point (3,2) so we can solve for b

2=3/2+b

b=1/2, so the swimmer will travel along the line

y=x/2+1/2

6 0

3 years ago

What is the answer to 7x-7=12x+13

QveST [7]

Answer:

x = − 4

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

A group pre-orders 8 tickets for a sightseeing tour, even though they don't have the money to pay for them yet. Each ticket cost

katen-ka-za [31]

Answer: -$266

Explanation: -32x8 because of 8 tickets, add 10 to the total debt because of the fee.

7 0

3 years ago

What is the value of each expression (-3)2

k0ka [10]

First you had to remove parenthesis first.

$-3*2=-6$

Multiply by the numbers.

$3*2=6$

Final answer $\boxed{=-6}$

$6/3=2$

$2*3=6$

$6/2=3$

Hope this helps!

And thank you for posting your question at here on brainly, and have a great day.

-Charlie

5 0

3 years ago

A trapezoid has a perimeter of 14 feet. What will the perimeter be if each side length is increased by a factor 7? 21 feet 98 fe

natka813 [3]

Answer:

Correct choice is B

Step-by-step explanation:

Let a, b, c and d be the trapezoid's sides lengths.

The perimeter of the trapezoid is the sum of all sides lengths, thus,

$a+b+c+d=14\ ft.$

If each side length is increased by a factor 7, then new sides have lengths 7a, 7b, 7c and 7d. The perimeter of new trapezoid is

$7a+7b+7c+7d.$

Use the distributive property for this expression:

$7a+7b+7c+7d=7(a+b+c+d).$

Since $a+b+c+d=14\ ft,$ then

$7a+7b+7c+7d=7(a+b+c+d)=7\cdot 14=98\ ft.$

7 0

2 years ago

Read 2 more answers