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3 years ago

True or Fasle

Mathematics

1 answer:

Mnenie [13.5K]3 years ago

5 0

1. True.

2. False. x² + 4 = (x+2)(x-2)

3. True.

4. False. It gives (x²-9) which is a binomial.

<em>Feel free to mark this as brainliest! :D</em>

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IDENTIFY THE SLOPE AND Y- INTERCEPT 0F Y-16 = -4X

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Measure of each interior angle of 28 sided polygon

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3 years ago

I don’t understand this I would like some help plz!!!

Andrew [12]

So basically, these questions want you to find the variable<em> x</em>, which you can do by isolating the variable.

3) x * 1/2 = 1/3 <-- To isolate the x in this case, you want to divide both sides by 1/2, aka multiply by 2.

x = 2/3

4) x * 3 = 2 <-- To isolate x, you want to divide both sides by 3

x = 2/3

5) 1/4 * x = 1/6 <-- To isolate x, you want to divide both sides by 1/4, aka multiply by 4.

x = 4/6 = 2/3

6) 4 1/2 * x = 1 1/2 <-- First, let's make these into improper fractions

9/2 * x = 3/2 <-- To isolate x, you want to divide both sides by 9/2, or multiply both sides by 2/9

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3 years ago

What is the answer to this in cm

jasenka [17]

The hardest part is finding the length of the curve at the top. To find arc length, multiply the circumference by the arc angle divided by full angle (360°) in a circle. Or:
$s = (2\pi r)( \frac{x}{360})$
x, the arc angle in a semicircle, is 180°.
r, the radius is 7/2 = 3.5.
Now just plug the numbers in and solve for arc length, s.

s = 2π(3.5)(1/2) ≈ 11.00

Now just add up all the sides. 11cm + 10cm + 10cm + 7cm = 38 cm.

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3 years ago

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To solve this, you must find a common denominator (the number on the bottom of the fraction) before adding the numbers. The easiest was to do this is multiply the denominators together to get a common product. You then multiply by that number over itself, because that is equivalent to 1. So in this problem, you would multiply 3/4 by 19/19 and 18/19 by 4/4. Once you do this, you can add the fractions together.

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3 years ago