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3 years ago

Who can help me with problem 2 you can earn 11 points

Mathematics

1 answer:

stealth61 [152]3 years ago

7 0

Answer:

m∠ADC = 90°

5x-5 = 90

x = 19

Step-by-step explanation:

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20 is 60% of what number

Lilit [14]

Answer:

33.33

Step-by-step explanation:

60% of 33.33 is 20. 100% of 33.33 is 33.33, therefore 60 percent of 33.33 equals 20.

3 0

3 years ago

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The radius of a circle is 3 cm. Find it's area in terms of pi. 28.27 cm2 is wrong

sladkih [1.3K]

Answer:

9 $\pi$

Step-by-step explanation:

The reason why that is wrong is because it says in terms o pi which means you do NOT multiply pi by the radius squared.

EQUATION FOR AREA OF A CIRCLE: $\pi r^{2}$

When you put it all together you get: $\pi * 3^{2}$ which equals $9\pi$

DO NOT MULTIPLY 9 AND PI. IT'S JUST 9 $\pi$

hope this helped :)

5 0

3 years ago

The sum of angle 1 and angle 4 and the sum of angle 3 and angle 4 are each equal to 180 degrees by the definition of supplementa

S_A_V [24]

Supplement Postulate? they are supplementary.

4 0

4 years ago

If there is no number in front of a letter, it is really number 1

erik [133]

Answer: Yes, if there is no number in front of a variable(or letter, as you said), it is actually 1.

a = 1a

x^2 = 1x^2

2m + n = 0 means 2m + 1n = 0

Step-by-step explanation:

4 0

3 years ago

GUYS PLS HELP URGENT

DaniilM [7]

Answer:

$\boxed{0.2}$

Step-by-step explanation:

Put -2 where x is in the function and do the arithmetic. Any number of calculators will compute this for you.

x ≈ 0.23781036584 ≈ 0.2

_____

<em>Comment on the above result</em>

The number above came from the Google calculator (2nd attachment). Surprisingly, it is rounded incorrectly in the last displayed digit. To 20 significant digits, the value is ...

0.23781036584658190876

It appears the Google calculator didn't carry enough digits to get the answer correct in the last displayed decimal place.

8 0

3 years ago

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