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3 years ago

A. -12 5 b. -12 - c. 12. (-4) d.-12. (-5)

Mathematics

1 answer:

Roman55 [17]3 years ago

4 0

Step-by-step explanation:

-12=12i^2, 5
-12-=12i^2*i^2
12(-4)=-48=48i^2
-12(-5)=60

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Write three fractions that are equivalent to 3 over 11 , but written in higher terms. One of them must

Alinara [238K]

Answer:

Three fractions that are equivalent to $\frac{3}{11}$ are: $\frac{6}{22}$ , $\frac{24}{88}$ and $\frac{144}{528}$ .

Step-by-step explanation:

Equivalent fractions are set of fractions in which when simplified, they have the same answer.

Given: $\frac{3}{11}$

i. multiply the numerator and denominator of $\frac{3}{11}$ by 2,

= $\frac{3*2}{11*2}$ = $\frac{6}{22}$

i. multiply both the numerator and denominator of $\frac{6}{22}$ by 4,

= $\frac{6*4}{22*4}$ = $\frac{24}{88}$

ii. multiply the numerator and denominator of $\frac{24}{88}$ by 6,

= $\frac{24*6}{88*6}$ = $\frac{144}{528}$

So that;

$\frac{3}{11}$ = $\frac{6}{22}$ = $\frac{24}{88}$ = $\frac{144}{528}$ .

Three fractions that are equivalent to $\frac{3}{11}$ are: $\frac{6}{22}$ , $\frac{24}{88}$ and $\frac{144}{528}$ .

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3 years ago

What type of triangle is formed by joining the points D(7, 3), E(8, 1), and F(4, -1)?

attashe74 [19]

$D(7,3) \\
E(8,1) \\
F(4,-1)$

The lengths of the sides of the triangle:
$\overline{DE}=\sqrt{(8-7)^2+(1-3)^2}=\sqrt{1^2+(-2)^2}=\sqrt{1+4}=\sqrt{5} \\ \\
\overline{DF}=\sqrt{(4-7)^2+(-1-3)^2}=\sqrt{(-3)^2+(-4)^2}=\sqrt{9+16}=\sqrt{25}=5 \\ \\
\overline{EF}=\sqrt{(4-8)^2+(-1-1)^2}=\sqrt{(-4)^2+(-2)^2}=\sqrt{16+4}=\sqrt{20}= \\
=\sqrt{4 \times 5}=2\sqrt{5}$

No sides are equal to each other, so it's a scalene triangle.

Check if the sides satisfy the Pythagorean theorem:
$(\sqrt{5})^2 + (2\sqrt{5})^2=5^2 \\
5+20=25 \\
25=25 \\
true$
They do, so it's a right triangle.

The triangle is a right scalene triangle.

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After 1 second, the ball is 121 feet in the air; after 2 seconds, it is 224 feet in the air.Find the height, in feet, of the bal

qwelly [4]

I'm gonna hazard a guess at 309.
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Can you please help me with this and thank you

katrin2010 [14]

The length is 14 how I know it.

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if you do not know this process in detail leave it in the comments and I'll explain it, for now the value of length will be 14

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