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Ivahew [28]
3 years ago
13

Can someone please help?

Mathematics
2 answers:
Scorpion4ik [409]3 years ago
8 0
It’s the third one. .
mylen [45]3 years ago
7 0

9 \times  \frac{1}{4}  =  \frac{9}{4}✅

<h3>Step-by-step explanation:</h3>

Option A⤵

5 \times  \frac{1}{2}  =  \frac{1}{10}  \\ ⇢  \frac{5}{2} ≠ \frac{1}{10}

Option B⤵

4 \times  \frac{1}{3}  =  \frac{4}{12}  \\ ⇢ \frac{4}{3} ≠ \frac{4}{12}

Option C⤵

9 \times  \frac{1}{4}  =  \frac{9}{4}  \\ ⇢ \frac{9}{4}  =  \frac{9}{4}

Option D⤵

8 \times  \frac{1}{ 5}  =  \frac{9}{5} \\ ⇢  \frac{8}{5} ≠ \frac{9}{5}

Hence, option C is correct.

\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘

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Answer:

<em><u>slope is -7/8</u></em>

Step-by-step explanation:

ok

first remember these to formulas:

m= \frac{y2-y1}{x2-x1}

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3 years ago
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3 0
3 years ago
A circular mirror is surrounded by a metal frame. The radius of the mirror is 2x. The side length of the metal frame is 12x. Wha
meriva

Answer:

Area\ of\ th\e metal\ frame = 65.5x^{2}\ (unit)^{2}

Step-by-step explanation:

Assuming that the metal frame is a square metal frame because the length of the side of the metal frame is given.

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Radius of the mirror = 2x unit

Side length of the square metal frame = 12x unit

We need to find the area of the metal frame.

Solution:

First we find the area of the circular mirror, using area formula of the circle.

A_{c} = \pi r^{2}

Where, r = Radius of the object.

Substitute r = 2x in above equation.

A_{c} = \pi (5x)^{2}

A_{c} = \pi (25x^{2})

A_{c} = 25\pi x^{2}\ (unit)^{2}

Now, we find the area the square, using area formula of the square.

A_{S} = (Side\ length)^{2}

A_{S} = (12x)^{2}

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A_{f}=(144-25\pi) x^{2}

A_{f}=(144-25\times 3.14) x^{2}

A_{f}=(144-78.5) x^{2}

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Therefore, the area of the metal frame is 65.5x^{2}\ (unit)^{2}.

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