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3 years ago

Rewrite the expression 4×12 two different ways to show the distributive property over both addition and subtraction

Mathematics

1 answer:

Alex787 [66]3 years ago

5 0

For addition: 12+12+12+12
Subtraction: not sure sry

:) hope this helps tho

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Segment BD is an altitude of triangle ABC. Find the area of the triangle.

Sever21 [200]

Answer: The correct option is A, i.e., 7.5.

Explanation:

It is given that ABC is a triangle and BD is an altitude.

Since BD is an altitude, therefore the height of the triangle is BD and the base of the triangle is AC.

The distance formula to find the distance between two points is,

$D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

First, we find BD, where B(-1,4) and D(2,4).

$BD=\sqrt{(2+1)^2+(4-4)^2}=\sqrt{9} =3$

So, the height of the triangle is 3.

Now, we find the value of AC, where A(2,1) and C(2,6).

$AC=\sqrt{(6-1)^2+(2-2)^2}=\sqrt{25} =5$

So, the base of the triangle is 5.

The formula to find the area of a triangle is,

$A=\frac{1}{2}\times {\text{base}}\times {\text{height}}$

$A=\frac{1}{2}\times 5\times 3=\frac{15}{2}=7.5$

Therefore, the area of the triangle is 7.5 unit square and the correct option is A.

6 0

3 years ago

Read 2 more answers

NEED HELP ASAP!!! ALGEBRA 1 STUFF (20pts.)

3241004551 [841]

It's not actually 20 pts it's 10 pts if you send a question and you want 20 pts off it would be 10 for other ppl. like

10pts off = 5
20pts off = 10
30pts off = 15

and so on so it's like counting by 5's each time you lose points

4 0

3 years ago

Simplify the given expressions. express all answers with positive exponents. b^2/3 b^1/2

mixas84 [53]

I am assuming 33 is B^(2/3) times B^(1/2)
See the following image

6 0

3 years ago

12.2z + 19.4 = -2.7z + 93.9

Digiron [165]

Answer:

z=5

Step-by-step explanation:

12.2z+ 19.4 = -2.7z + 93.9

14.9z=74.5

z=5

3 0

3 years ago

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How do you solve x - 1 + 5x = 23

Roman55 [17]

Answer:

X=4

Step-by-step explanation:

First you add like terms, in this case 5x and x. Then you have 6x-1=23. You then add 1 from both sides so you end up with 6x=24. This then results in X=4

8 0

3 years ago

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