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2 years ago

Find the area of the triangle.

Mathematics

1 answer:

KengaRu [80]2 years ago

7 0

Answer:

10 Square feet or square meter

Step-by-step explanation:

Area of a triangle = bh / 2

b represents the base which is 4

h represents the height which is 5

bh / 2 = 4 × 5 / 2

Area = 20 / 2

Area = 10

:. The Area of the triangle is 10 square feet or square meter

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What is the slope of the line represented by the equation y = -1.8x - 2?

rusak2 [61]

Answer:

y = mx + b

-1.8 is the slope

-1.8 in fraction form is -9/5

-9/5

Step-by-step explanation:

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2 years ago

I solved this problem : 33 + 45 + 78 how could i check my answer?

Vlad [161]

Step-by-step explanation:

So the answer for 33+45+78 is 156.

If you want to check that, you can use inverse operations, so subtract.

156-78=78. (Check 78)

78-45=33 (Check 45 and 33)

Well, now it's checked because we used all the factors of the equation!

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3 years ago

Read 2 more answers

I need help with three and four

mart [117]

Answer:

3: $a^{2}+2ab+b^{2}$

4: $8x^{3} -12x^{2}+6x-1$

Step-by-step explanation:

Question 3 can be re-written as:

$(a+b)(a+b)$

which equals:

$a^{2}+2ab+b^{2}$

Question 4 can be re-written as:

$(2x-1)(2x-1)(2x-1)$

Doing the first 2 brackets gives us:

$(4x^{2} -4x+1)(2x-1)$

Expanding these two:

$8x^{3} -4x^{2} -8x^{2} +4x+2x-1$

Simplifying it:

$8x^{3} -12x^{2}+6x-1$

4 0

2 years ago

Read 2 more answers

last question. thanks for wasting your time answering my questions that I could probably answer my self if I wasn't such a lazy

Alina [70]

Lol I'm glad to answer your questions :D

So in the last question, it uses the word "per" which basically means you would have to multiply the number of pounds times 1.69

So it would be $1.69a

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3 years ago

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Novosadov [1.4K]

Answer:

Step-by-step explanation:

Sorry i cannot showy solution

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3 years ago