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Marysya12 [62]
3 years ago
9

If line GH and line JK form a right angle and intersect at P are they perpendicular?

Mathematics
1 answer:
emmasim [6.3K]3 years ago
6 0

Yes

If they form 90 degrees, they are perpendicular

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Question help in​ statistics, what does df​ denote? if a simple random sample of 2424 speeds of cars on california highway 405 i
Sliva [168]
N = 2424 is the sample size (amount of cars being sampled)
df = degrees of freedom
df = n-1
df = 2424-1
df = 2423

Side Note: if there is a typo and the sample size should be n = 24 (instead of 2424), then the df would be df = n-1=24-1 = 23
5 0
3 years ago
Universal Pet house sells vinyl doghouse and treated lumber doghouses. It takes the company 5 hours to build a vinyl doghouses a
LuckyWell [14K]

Answer:

The system of equations is :

Equation 1- 5x+2y=50

Equation 2- x+2y=30

Number of vinyl doghouse = 5

Number of treated lumber doghouse =12.5

Step-by-step explanation:

Let x be the number of vinyl doghouses

y be the number of treated lumber doghouses

→If it takes the company 5 hours to build a vinyl doghouses and 2 hours to build a treated lumber doghouse. The company dedicates 50 hours every week towards assembling and painting doghouses.

Equation 1- 5x+2y=50

→It takes an additional hour to paint each vinyl doghouse and an additional 2 hours to assemble each treated lumber doghouse. The company dedicates 30 hours every week towards assembling and paining dog houses.

Equation 2- x+2y=30

→When we solve these equation we get the number of  vinyl doghouse and treated lumber doghouse.

Subtract equation 2 from equation 1

5x+2y-x-2y=50-30

4x=20

x=\frac{20}{4}

x=5

Put value of x in equation 2

x+2y=30

5+2y=30

2y=25

y=\frac{25}{2}

y=12.5

Therefore, number of vinyl doghouse = 5, number of treated lumber doghouse =12.5

4 0
3 years ago
Read 2 more answers
2 Ella, James, and Ray's grandmother gave them $24 to divide equally. They spent the
Musya8 [376]

3 kids and $24 will give each 24/3=$8 each

$8 for 4days is 8/4=$2 a day they spent

3 0
3 years ago
Joel can drive his car 450 miles at a steady speed using 15 gallons of gasoline. Making rate table showing the number of miles y
harkovskaia [24]
I hope this helps!! Don’t mind the 20 mph at the top. That was from another problem I was helping someone else on.

4 0
3 years ago
if noah ran 45 minutes and john ran 6 more minutes the noah how many minutes did john run? please help
pychu [463]

Answer:51 minutes

Step-by-step explanation:

7 0
2 years ago
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