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shtirl [24]
2 years ago
11

Can someone pls tell me if this is right? if its not then what is the right answer?

Mathematics
2 answers:
Lena [83]2 years ago
6 0

Answer:

B. 1/4

Step-by-step explanation:

Your answer was right. It is B. 1/4


I hope it helps!

Muffin<3

noname [10]2 years ago
3 0

Answer:

It's right :)

Explanation:

  • Dilation along the x-axis = (-7-1)/(-1-1) = 2/8 = 1/4
  • Dilation along the y-axis = (-7-1)/(-1-1) = 2/8 = 1/4

Thus, the overall dilation is 1/4

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PLEASE HELP!!!!!!!Find the length of the missing sides. Round your answers to the nearest tenth. (Hint: Always make sure to labe
Reptile [31]

Answer:

(9.37, 17.7) ; (14.10, 19.42); (20.8, 22.3)

Step-by-step explanation:

For the first picture :

The missing angle :

180 - (32 + 90)

180 - (122) = 58°

To obtain the length of side x:

From ptthagoras:

Tan58° = opposite / Adjacent

1.6003345 = 15 / x

x = 15 / 1.6003345

= 9.37

y = sqrt(15^2 + 9.37^2)

y = sqrt(312.7969)

y = 17.7m

2)

Missing angle :

From ptthagoras :

Sin54° = opposite / hypotenus

0.8090169 = y/ 24

y = 0.8090169 * 24

y = 19.42

x = sqrt(24^2 - 19.42^2)

x = sqrt(198.8636)

x = 14.10

3)

Sin21° = opposite / hypotenus

0.3583679 = 8 /y

y = 8 / 0.3583679

y = 22.3

x = sqrt(22.3^2 - 8^2)

x = sqrt(433.29)

x = 20.8

7 0
3 years ago
The ratio of boys and teacher in a school is 2:3 the ratio of teachers to the girls is 4:5.Find the ratio of all the three in a
Scorpion4ik [409]

Answer:

Step-by-step explanation:

2:3 boy:teacher 8:12

4:5 teacher:girl 12:15

8:12:15 boy:teacher:girl

7 0
2 years ago
What is the exact volume of a sphere with a diameter of 36 in.?
dalvyx [7]
The answer is 24438.412799999995 cubic inches 
6 0
3 years ago
Four members from a 50 person committee are to be randomly selected to serve as chairperson, vicechairperson, secretary, and tre
alexdok [17]

Answer:

So, exists 5527200 different leadership structures.

Step-by-step explanation:

We know that four members from a 50 person committee are to be randomly selected to serve as chairperson, vicechairperson, secretary, and treasurer. The first perosn to be selected is the chairperson, the second to be selected as vice chairperson, the third is secretary, and the fourth is treasurer.

Since the order of the people is important to us, we have the following:

50·49·48·47=5527200

So, exists 5527200 different leadership structures.

3 0
3 years ago
A long distance phone service charges $0.30 for the first 10 minutes and $0.05 for each additional minute or fraction thereof. U
olga nikolaevna [1]

Answer: Our Cost function is discontinuous at every integer after x>10.

Step-by-step explanation:

Since we have given that

For the first 10 minutes , the service charges = $0.30

Let the number of additional minute be 't'.

Amount charge for each additional minute = $0.05

Using the greatest integer function:

So, Cost C of a call in terms of time 't' minutes would be

C=0.03+0.05\left \lceil t-10 \right \rceil

As we know that Greatest integer is discontinuous at every integer.

So, our Cost function is discontinuous at every integer after x>10.

4 0
3 years ago
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