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Nikolay [14]
3 years ago
5

Help pls will give brainliest

Mathematics
1 answer:
olchik [2.2K]3 years ago
7 0

Answer:

b

Step-by-step explanation:

area of triangle = 1/2 x c x d =cd/2

area of semicircle = 1/2 x π x r^2 = 1/2 x π x (a/2)^2 = 1/2 x π x a^2/4 =πa^2/8

area of shape = area of triangle + area of semicircle

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What is the factor tree of 99 and 165 and what is the GCF?
Shtirlitz [24]
99
/ \
11 9
/ \
3 3

165
/ \
33 5
/ \
3 11

GCF=3
5 0
3 years ago
Billy is hiking in Colorado. He walks eastward four miles, then turns $60$ degrees northward and walks six miles. How far is he
nikklg [1K]

He is  2√19 miles far way from starting point.

Suppose Billy starts at point A, turns at point B, and ends at point D, as shown below.

If Billy turns 60◦ northward and walks six miles, then we can draw a 30 − 60 − 90 triangle whose hypotenuse is 6 miles

It follows that Billy traveled 6/2 = 3 miles eastward during these 6 miles, and that he traveled 3√3 miles northward during these 6 miles. In total, Billy traveled 4 + 3 = 7 miles  eastward and 3√ 3 miles northward.

By the Pythagorean Theorem, the distance from his starting point is q:

(7)2 + (3√3)2

=√49 + 27

= √76

= 2√19 .

Learn more about Pythagorean Theorem on:

brainly.com/question/20545047

#SPJ4

5 0
2 years ago
Randy said that the number 0.03 has a value 10 times greater than 0.003 is he correct.
pishuonlain [190]
Yes, he is correct. 0.003 * 10 = 0.03
5 0
3 years ago
The area of a rectangle is greater than or equal to 90 square centimeters. The width of the rectangle is 9 centimeters and the l
IRINA_888 [86]

Answer:234

Step-by-step explanation:

XY>=90

9x>=90

x>=10

possible solutions include 134131413 4234234232 342342423 2342423423 342423432 42342423 23423424 23424242234 244324242424234 2342 and 497553452353570542389579523954875923759237529

7 0
3 years ago
Please help me quick
Ainat [17]

For this case we must indicate the factors of the following expression:

x ^ 2-12x-20

To factor we must find two numbers that when multiplied result in -20 and when added, result in -12.

There are no two numbers that meet this condition. Thus, the expression is not factorizable with rational numbers.

Answer:

The expression is not factorizable with rational numbers.

3 0
3 years ago
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