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Valentin [98]
3 years ago
12

If a b and c d which pair of angles are congruent

Mathematics
1 answer:
lara [203]3 years ago
3 0
A. 1 and 16

C. 9 and 11

D. 12 and 13 are all correct I believe.
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Brain enjoys hang gliding on his last flight, he jumped off a cliff 520 high he landed 450 from the base of the cliff how far di
belka [17]

Answer:

Brain travelled 687.68 from the cliff.

Step-by-step explanation:

Given that:

Height of the cliff = 520

Base of the cliff = 450

The distance will form the hypotenuse of right angled triangle.

Pythagorean theorem states square of hypotenuse of right angled triangle is equal to the sum of squares of base and height of triangle.

Using pythagorean theorem;

a = 520, b=450, c = hypotenuse

a^2+b^2=c^2\\(520)^2+(450)^2=c^2\\270400+202500=c^2\\472900=c^2\\c^2=472900

Taking square root on both sides

\sqrt{c^2}=\sqrt{472900}\\c=687.68

Hence,

Brain travelled 687.68 from the cliff.

6 0
3 years ago
The number a exceeds the number b by 50 percent. By what percent is the number b smaller than the number a?
inna [77]

Answer:

   33 1/3 percent smaller

Step-by-step explanation:


The number a exceeds the number b by 50 percent.

a = b + b*.5

a = b(1.5)

Divide by 1.5

a/1.5 = b

2/3a =b



We want to find (a-b)/a  to find the percent decrease

                           (a-2/3a)/a *100percent

                             (1/3a)/a* 100 percent

                                  1/3 * 100 percent

                                     33 1/3 percent smaller

5 0
3 years ago
What is the MINIMUM of the data set: 35, 20, 30,25, 20?"
Romashka [77]

Answer:

B) 20

<u>The minimum of a data set is the </u><u>smallest</u><u> term of that set.</u>

We arrange the terms in ascending order

→ 20,20,25,30,35

So, the minimum is 20

<u>--------------------------------</u>

<u>hope it helps...</u>

<u>have a great day!!</u>

3 0
3 years ago
Please do your best to give me the correct answer! thank you so much! :)
Nataliya [291]
Answer: m= -1/8

Good luck !
6 0
3 years ago
Does square root of 162 = square root of 81 and square root of 81 added
madam [21]
No.
.. √162 = (√2)*(√81)
.. √81 +√81 = 2√81 = √324

Square root is a non-linear function. sqrt(a +b) ≠ sqrt(a) +sqrt(b)
5 0
3 years ago
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