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3 years ago

Someone plz help meee

Mathematics

1 answer:

coldgirl [10]3 years ago

7 0

Answer:

The second one

Step-by-step explanation:

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(-2x-5)=23 solve for it step by step please

expeople1 [14]

Answer: $x=-14$

Step-by-step explanation:

Get rid of parentheses: $-2x-5-23=0$

Add all the numbers together, and all the variables: $-2x-28=0$

Move all terms containing x to the left, all other terms to the right:

$-2x=28$

$x=28/-2$

$x=-14$

7 0

3 years ago

Read 2 more answers

Find the area or this triangle

Arlecino [84]

Answer:

Area of triangle = 15 square units

Step-by-step explanation:

We need to find area of the triangle, given the vertices:

A=(4,0)

B=(1,5)

C=(7,5)

The formula used is: $Area\:of\:triangle=\frac{1}{2}(x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2))$

We have: $x_1 =4, y_1 =0, x_2 =1, y_2=5, x_3=7 , y_3=5$

Putting values and finding area

$Area\:of\:triangle=\frac{1}{2}(x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2))\\Area\:of\:triangle=\frac{1}{2}(4(5-5)+1(5-0)+7(0-5))\\Area\:of\:triangle=\frac{1}{2}(4(0)+1(5)+7(-5))\\Area\:of\:triangle=\frac{1}{2}(0+5-35)\\Area\:of\:triangle=\frac{1}{2}(-30)\\Area\:of\:triangle=-15$

We will be ignoring negative sign, because area of triangle is positive.

So, Area of triangle = 15

3 0

2 years ago

What is 4/2/7 as an improper fraction

Zanzabum

If "4/2/7" is all we have to work with, then PEMDAS rules will save the day. Do the division from left to right.

4/2 becomes 2. Then we have 2/7, a proper fraction. I don't see where an improper fraction would come from in this case.

3 0

3 years ago

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By installing efficient water fixtures the average American can reduce water use to about 45 gallons of water per day.Using such

zimovet [89]

Hello there.

By installing efficient water fixtures the average American can reduce water use to about 45 gallons of water per day.Using such water fixtures about how many gallons of water would the average American use in December

D about 2000 gallons

6 0

3 years ago

PLEASE HELP !! Image attached

OLEGan [10]

Answer:

C = 31.4 inches

Step-by-step explanation:

The circumference of a circle is found by

C = pi *d

C =3.14 * 10

C = 31.4 inches

3 0

3 years ago

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