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WITCHER [35]
3 years ago
15

I need to find the area.

Mathematics
1 answer:
Dima020 [189]3 years ago
8 0

Answer:

Step-by-step explanation:

side of square=10+10+20=40 m

area of square=40×40=1600 m²

area of small square=π10²=100 π m²

area of bigger semi circle=1/2 ×π×20²=200 π m²

reqd. area of shaded region=1600-(100π+200π)=1600-300π m²

≈1600-300×3.14

≈1600-942

≈658 m²

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Kira, goran, & joe sent a total of 90 text messages during the weekend. Goran sent 5 fewer messages than Kira. Joe sent 3 ti
MissTica

Answer:

Kira sent 19 text messages, Goran sent 14  text messages  and Joe sent 57  text messages.

Step-by-step explanation:

Let be "k" the number of text messages that Kira sent during the weekend, "g" the number of text messages that Gora sent during the weekend and "j" the number of text messages that Joe sent during the weekend.

We know know that they sent a total of 90 text messages then:

k+g+j=90

Goran sent 5 fewer messages than Kira. This is:

g=k-5

And Joe sent 3 times as many messages as Kira. Then:

j=3k

The steps to solve this are:

- Substitute the second equation and the third equatio into the first equation  and then solve for "k":

k+(k-5)+(3k)=90\\\\5k-5=90\\\\5k=90+5\\\\k=\frac{95}{5}\\\\k=19

- Substitute this value into the second equation to find "g":

g=19-5=14

- Substitute the value of "k" into the third equation to find "j":

j=3(19)=57

4 0
3 years ago
Allison drew a triangle with 2 congruent sides and one obtuse angle. Which term accurately describe the triangle. Select all tha
Digiron [165]

Answer: B. Isoceles

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please help!!! i’ll give brainliest.
S_A_V [24]

Answer:

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7 0
3 years ago
Find the domain and range of the relation: {(–20, 11), (6, –8), (1, –20), (–13, 13)}
user100 [1]

Answer:

D: {-20, -13, 1, 6}

R: {-20, -8, 11, 13}

Step-by-step explanation:

Given the relation, {(–20, 11), (6, –8), (1, –20), (–13, 13)}, all x-values (inputs) make up the domain of the relation while all y-values make up the range of the relation.

Therefore:

Domain: {-20, -13, 1, 6}

Range: {-20, -8, 11, 13}

4 0
3 years ago
Please help me with this question
Dmitrij [34]

Answer:

a) number 2 and 3 appeared a minimum number of times

b) number 5 appeared a maximum number of times

c) number 1, 4 and 6 appear an equal number of times (4 times). Also number 2 and 3 appear an equal number of times (1 time)

d) Even numbers turned up 9 times. The even numbers in a dice are 2 4 and 6. Add up how many times they came up: 1+4+4=9

f) Odd numbers turned up 11 times. The odd numbers in a dice are 1, 3 and 5. Add up how many times they came up: 4+1+6=11

7 0
2 years ago
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