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3 years ago

PLEASE ANSWER QUICK!!!!!!!!

Mathematics

2 answers:

zhenek [66]3 years ago

5 0

The answer is A I believe :)

vodka [1.7K]3 years ago

3 0

Answer:

Step-by-step explanation:

hvjhfsjhsf vj ssjbvjha fihb aijfbv ilaebvsafa

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Find the least common denominator 3/5+4/7

Levart [38]

Answer:

Step-by-step explanation:

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3 years ago

I feel like a complete idiot for not know this. help..please.

Serjik [45]

Answer:

B. x+60+90=180

Step-by-step explanation:

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A line will always equal 180 and we are given three things that must equal 180. Also, what is on the top is the same as the bottom so x applies.

x+60+90=180

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3 years ago

Which statement is not used to prove that ΔFGH is similar to ΔFIJ? triangles FGH and FIJ in which point I is between points F an

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Answer:

Points F, J, and H are collinear

Step-by-step explanation:

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4 0

3 years ago

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Your mother gave you $13.32 with which to buy a present. This covered 3/5 of the cost. How much did the present cost? 8TH GRADE

Natasha2012 [34]

3/5x = 13.32
x = 22.2

Answer: $22.20

4 0

4 years ago

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Find the value c that will make 9x^2 +30x+c a perfect square trinomial

anzhelika [568]

Answer:

$c = 25$

Step-by-step explanation:

Given :-

A quadratic equation is given to us.
The equation is 9x² + 30x + c .

And we need to find out the value of c for which the given trinomial is a perfect square. On looking at the given expression all the terms are having positive signs before them .So we can rewrite it on the basis of ,

Identity :-

$\implies (a+b)^2=a^2+b^2+2ab$

Let's try to set the equation on this Identity .

The firsr term is 9x² . We can write it as ,

$\implies 9x^2=(3x)^2$

Hence the middle term here should contain 3 and 2 as their factors. Let's Break the middle term .

$\implies 30x = 2.3x.5$

Therefore in order to make the whole expression as perfect square 5² must be replaced by c . The expression would become ,

$\implies 9x^2+30x + 5^2 \\\\\implies (3x)^2+2.3x.5 +5^2\\\\\implies (3x+5)^2$

Hence the value of c should be 25 .

8 0

3 years ago

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