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EleoNora [17]
3 years ago
13

What is the value of the expression 8a + 16c if a = -5 and C = -1

Mathematics
1 answer:
marysya [2.9K]3 years ago
3 0

Answer:

-4 is the answer

Step-by-step explanation:

Mark brainliest please if my answer is correct

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Work out the area of this quarter circle take pie to be 3.142 radius in image attached thanks (:
iVinArrow [24]

Answer:

<h2>38.4895 cm^2</h2>

Solution,

Radius(R)= 7 cm

Area of quarter circle:

\frac{\pi \:  {r}^{2} }{4}

=  \frac{3.142 \times 49}{4}

= 38.4895 \:  {cm}^{2}

Hope this helps...

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Order the group of quadratic functions from widest to narrowest graph <br> y=3^2, y=5^2, y=7^2
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3 years ago
If angle e = 130 degrees and angle h = 45 degrees, what is the measure of angle g?
Nataliya [291]
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7 0
3 years ago
If y= 1/5 when x=3, find y when x=4, given that y varies directly with x
lisov135 [29]

Answer:

<h2>y =  \frac{4}{15}</h2>

Step-by-step explanation:

To find y when x=4, we must first find the relationship between them

The statement

y varies directly with x is written as

<h3>y  \:  \:  \:  \alpha  \: \:   \: kx</h3>

where k is the constant of proportionality

From the question

when y = 1/5

x = 3

Substitute the values into the above formula and solve

That's

<h3>\frac{1}{5}  = 3k \\ 15k = 1 \\ k =  \frac{1}{15}</h3>

So the formula for the variation is

<h3>y =  \frac{x}{15}</h3>

From the question

when x = 4

<h3>y =  \frac{4}{15}</h3>

Hope this helps you

5 0
3 years ago
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