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3 years ago

BRAINLIEST!!! +15 POINTS!!! REAL ANSWERS ONLY!!!

Mathematics

2 answers:

kramer3 years ago

3 0

Answer:

Step-by-step explanation:

Yanka [14]3 years ago

3 0

The top one. Just get 1 to the left and plug into the quadratic formula

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The number 72 is between what two perfect squares? Enter a numerical answer only.

jasenka [17]

Well a perfect square looks like this:

6 x 6
2 x 2

So the number 72 is between the PRODUCT of two perfect squares such as those.

One product has to be above 72, and the other below it.

So lets multiply.

8 x 8 = 64
9 x 9 = 81

Oh look at that, 72 is between 64 and 81.

7 0

3 years ago

Read 2 more answers

Write as a fraction in simplest form.

seropon [69]

Answer:

2/4=1/2

3/6=1/2

4/16=1/4

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3 years ago

Joel earns a commission of 5% on the audio equipment he sells , and the store keeps the rest . He sells a $750 amplifier. A. How

den301095 [7]

Answer:

Joel earns $35.00 commission and the store keeps $715.

Step-by-step explanation:

You need to figure 5% of what he sold - or 5% of $750.

Of course, you can use a calculator, or multiply $750 by .05. I prefer to think of 10 percent ($75.00) and half that to get 5%. $35.00.

Joel earns $35.00 on the sale. Not bad!

If he gets to keep $35, deduct this from the price to find out how much the store will keep.

$750 - $35 - $715.

5 0

3 years ago

Read 2 more answers

5. A ski slope is 310 yards long with a vertical drop of 220 yards. Find the

OleMash [197]

It helps to draw a picture so you can see which trig ratios to use but...

310 is the hypotenuse of the ski slope and the side length across from the angle you’re looking for is 220, the vertical drop.

You can use sin to find theta.

sinx= 220/310

sinx=0.70967...
x = sin inverse of 0.70967....
x = 45°

6 0

3 years ago

Explain how to write 1.25 times 10 to the negative third power in standard form

OleMash [197]

This is called "Scientific Notation"

$1.25 \times {10}^{ - 3}$
So you will always see the 10... Don't worry about it but worry if it is negative or positive because the sign will determine how to move the decimal point.

So, since it is negative then we will be moving the decimal point to the left. And, if it was a positive 3 then we'd move the decimal point to the right!

We will be moving it to the left "3" times because it says - 3 not - 5, etc...
$1.25 \times {10}^{ - 3} = 0.00125$
So just move the decimal 3 times in this case and there you go, your standard form. I forgot what the other form is but I can still solve for it...

I hope this helped if you have any questions then feel free to ask!!

8 0

3 years ago