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ludmilkaskok [199]
2 years ago
10

Which number is the c losest approximation of v39? o 6.2 o 6.5 o 7.5 o 7.7

Mathematics
1 answer:
erastovalidia [21]2 years ago
4 0

Answer:

6.2 would be ur awnser ( mark as best awnser

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What is the perimeter of triangle PQR? Show your work.
xxMikexx [17]

Answer:

The perimeter of triangle PQR is 17 ft

Step-by-step explanation:

Consider the triangles PQR and STU

1. PQ ≅ ST = 4 ft (Given)

2. ∠PQR ≅ ∠STU  (Given)

3. QR ≅ TU = 6 ft (Given)

Therefore, the two triangles are congruent by SAS postulate.

Now, from CPCTE, PR = SU. Therefore,

3y-2=y+4\\3y-y=4+2\\2y=6\\y=\frac{6}{2}=3

Now, side PR is given by plugging in 3 for 'y'.

PR = 3(3) - 2 = 9 - 2 = 7 ft

Now, perimeter of a triangle PQR is the sum of all of its sides.

Therefore, Perimeter = PQ + QR + PR

                                   = (4 + 6 + 7) ft

                                   = 17 ft

Hence, the perimeter of triangle PQR is 17 ft.

7 0
3 years ago
The temperature went from -12°F to 18°F. How much did the temperature change
vlada-n [284]

Answer:

18 - (-12)

Step-by-step explanation:

Final temp. - Initial temp. = the change in temperature

By -12, we're indicating that is below zero (which is obvious) meaning that it is not in the "normal" scale nor in the imaginary scale of numbers. So, we can operate the following...

18 - (-12) = 30

So the temperature changed by 30 values or the temperature increased by 30 values, because the number is positive.

6 0
2 years ago
What is 15/72 in simplest form
ss7ja [257]
15/72=5/24
Divide both by three.

:)
4 0
3 years ago
Read 2 more answers
What’s the solution to this equation 2+x=7/8x-15
Nostrana [21]

Answer:x=−136

Step-by-step explanation: Step 1: Simplify both sides of the equation.

2+x=

7

8

x−15

2+x=

7

8

x+−15

x+2=

7

8

x−15

Step 2: Subtract 7/8x from both sides.

x+2−

7

8

x=

7

8

x−15−

7

8

x

1

8

x+2=−15

Step 3: Subtract 2 from both sides.

1

8

x+2−2=−15−2

1

8

x=−17

Step 4: Multiply both sides by 8.

8*(

1

8

x)=(8)*(−17)

6 0
2 years ago
Read 2 more answers
Simplify:
liubo4ka [24]

Answer:

78.5÷3.14=25

56.272×41.2=2318.4064

429×338×712=103241424

447÷513=0.8713450292

Step-by-step explanation:

hope it will help!

8 0
2 years ago
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