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rosijanka [135]
2 years ago
8

(Express these ratios in their simplest form)

Mathematics
1 answer:
igor_vitrenko [27]2 years ago
8 0

Answer:

3:4 itself.

3:4 itself.

Step-by-step explanation:

3:4 itself.

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Find the equation of the line with the given slope that passes through the given point. Write the
allsm [11]

Answer:

y + 3 = 2(x + 1)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = 2 and (a, b) = (- 1, - 3), thus

y - (- 3) = 2(x - (- 1)), that is

y + 3 = 2(x + 1)

5 0
3 years ago
Which of the following is a perfect square trinomial?
yanalaym [24]
Your answer is D. 16x² - 56xy + 49y².

A perfect square trinomial is the result of a squared binomial, like (a + b)². Using this example, the perfect square trinomial would be a² + 2ab + b², as that is what you get when you expand the brackets.

Therefore, to determine which of these is a perfect square trinomial, we have to see if it can be factorised into the form (a + b)².

I did this by first square rooting the 16x² and 49y² to get 4x and 7y as our two terms in the brackets. We automatically know the answer isn't A or B as you cannot have a negative square number.

Now that we know the brackets are (4x + 7y)², we can expand to find out what the middle term is, so:

(4x + 7y)(4x + 7y)
= 16x² + (7y × 4x) + (7y × 4x) + 49y²
= 16x² + 28xy + 28xy + 49y²
= 16x² + 56xy + 49y².

So we know that the middle number is 56xy. Now we assumed that it was (4x + 7y)², but the same 16x² and 49y² can also be formed by (4x - 7y)², and expanding this bracket turns the +56xy into -56xy, forming option D, 16x² - 56xy + 49y².

I hope this helps!
6 0
3 years ago
Read 2 more answers
Help plz:)))I’ll mark u Brainliest
MaRussiya [10]

Answer:

8times 10 times 4 divided by 2 pplus 8 times 8 equals 64 + 80 = 144 m squared

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
6th grade math help me pleaseeee
spayn [35]
The answer is D , start from 2 and count to 8 and it gives you your answer
4 0
2 years ago
Read 2 more answers
If the sale price is $40 and the discount is 25%, what is the original price?
sveta [45]
Use this equation to solve the problem:

x - (x * .25) = 40

This equation is saying the original price times itself by 25% is 40.

x - (x * .25) = 40
Simplify.
x - .25x = 40
.75x = 40
Divide both sides by .75.
x = 53.33

The original price was $53.33
3 0
3 years ago
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