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ElenaW [278]
2 years ago
14

Answer the problems please. You have to find out what the letter means.

Mathematics
1 answer:
zheka24 [161]2 years ago
5 0

Answer:

29. x=5

30. a=7

31. r=8

32. c=4

33. w=3

34. m=9

Step-by-step explanation:

Hope this helps.

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The lengths of the sides of a triangle are in the extended ratio 8 : 9 : 10. The perimeter of the triangle is 108cm. What are th
belka [17]

Answer:

32, 36, 40

Step-by-step explanation:

8x + 9x + 10x = 108

27x = 108

x = 4

4 × 8 = 32 - 1st side

4 × 9 = 36 - 2nd side

4 × 10 = 40 - 3rd side

3 0
2 years ago
PLEASE HELP ASAP!!!
sergey [27]

Answer:

slope is equal to rise (going up or down on graph) over run (going left or right)

Step-by-step explanation:

1 = - \frac{5}{4}

2=   \frac{4}{2} =   2

3.    \frac{7}{3}

4.   -\frac{4}{7}

5.    \frac{3}{6} =   \frac{1}{2}

6.   -\frac{2}{8} = - \frac{1}{4}

8 0
2 years ago
Help? Question is above. 12 points
vladimir2022 [97]

Answer:

Step-by-step explanation:

Q5) 4/9 is 0.4 recurring not just “0.4”

Q6) 6 and 7

Q7) 5.385

7 0
2 years ago
A heated piece of metal cools according to the function c(x) = (.5)x − 7, where x is measured in hours. A device is added that a
Mama L [17]

Answer:

Option (b) is correct.

The temperature of the metal after two hours is 28 Celsius

Step-by-step explanation:

  Given : A heated piece of metal cools according to the function  c(x)=(0.5)^{x-7} ,  where x is measured in hours and then a cooling device id added that aids in cooling according to the function h(x)=-x-2

We have to determine the temperature of the metal after two hours.

Let w(x) denotes the temperature of metal .

Thus, w(x) can be given by function c(x) + h (x) = [c + h](x)

Thus, w(x)=[c+h](x)\\\\w(x)=(0.5)^{x-7}+(-x-2)\\\\ , where x is measured in hours.

Thus, after two hours that is when x = 2

the temperature of metal is given by w(2)

w(x)=(0.5)^{x-7}+(-x-2)\\\\ w(2)=(0.5)^{2-7}+(-2-2)

Solving , we get,

w(2)=(0.5)^{2-7}+(-2-2)\\\\ w(2)=(0.5)^{-5}+(-4)\\\\ w(2)=32-4=28

Thus, the temperature of the metal after two hours is 28 Celsius.

Hence, Option (b) is correct.

7 0
3 years ago
Read 2 more answers
Please solve:<br> Pictures attached below. Will award brainliest. Please show work!<br> Thanks!
alexandr402 [8]
I could be wrong but I’m pretty sure that there is no solution, and the statement is false.
3 0
2 years ago
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