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3 years ago

Number 9 on my integrated geometry test

Mathematics

1 answer:

Advocard [28]3 years ago

4 0

Answer:

4/5

Step-by-step explanation:

With reference angle E

Sin E = FG / EF

= 4/5

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Construct the 270 degrees rotation of the square ABCD abojt point p

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Answer:

Step-by-step explanation:

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3 years ago

Each morning papa noted the birds feeding on his birdfedder . So far this month he had seen 59 blue jays ,68 black crows , 12 re

Oduvanchick [21]

To solve this question, you need to first look at the total amount of birds and then at the percentage of the blue jays that fed on the bird feeder out of all the other birds.

To calculate the total you add them all together:
59+68+12+1 = 140 birds

Then the percentages of the blue jays that fed on his bird feeder are:
59/140 *100 = 42.143%

You want to see how many blue jays we can expect to see out of 300 birds.
So you divide 300 by 100 to see what 1% is = 3 birds

Then you multiply this amount (1% = 3 birds) by 42.134% which is the percentage of blue jays we can expect to see out of the 300 birds.
3*42.134 = 126.43

You round this off to 126 because you cant expect to see half a bird. Even if the answer had been 126.9, you would have rounded it of to 126 because no matter how close it is to the next whole number; you either have a whole bird or you don't.

Final Answer = 126

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3 years ago

Find two consecutive even integers such that the square of the second, decreased by twice the first is 52

Fiesta28 [93]

Let the first integer be $x$ . So, the next even number is $x+2$

Let's translate the formula: the square of the second is $(x+2)^2$ , twice the first is $2x$ . So, the equation is

$(x+2)^2 - 2x = 52$

Expand the square to get

$x^2+4x+4-2x = 52 \iff x^2+2x+4 = 52 \iff x^2+2x - 48 = 0$

The solutions to this equations are

$x = -8,\quad x = 6$

So, the possible consecutive even numbers are

$-8\text{ and } -6\quad\text{or}\quad 6\text{ and } 8$

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3 years ago

A certain video game costs $12 today. Tomorrow the store will have a promotion and the same video game will cost $8. What is the

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Step-by-step explanation:

<h3>game cost = $12 with 0% discount</h3><h3 /><h3>so, on putting x% discount videogame cost become $8</h3><h3>x% discount = x/ 100 × $12 = $8</h3><h3>x% discount = 66.66%</h3>

<h2>MARK ME AS BRAINLIST</h2>

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3 years ago

What is 0.00000000472 estimated as the product of a single digit and a power of 10?

Vesnalui [34]

$0\underbrace{.000000004}_{9\to}72=4.72\cdot10^{-9}$

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3 years ago

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