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dlinn [17]
3 years ago
5

Please help me , I’m really trying to finish my math homework !

Mathematics
1 answer:
Nikolay [14]3 years ago
8 0

Answer:

line A:  y = 1/2x + 8

line B:  y = -1/2x + 16

solution is (8, 12)

Step-by-step explanation:

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The circle with center O has a radius of 9 centimeters. If x=60 degrees, what is the length of arc AB?
Alenkinab [10]
<h3>Answer:</h3>

A.) 3 pi cm

<h3>Step-by-step explanation:</h3>

The formula for arc length (s) as a function of radius (r) and central angle (θ) in radians is ...

... s = rθ

Here, you have r=9 cm and θ=(60°/180°)π = π/3 radians, so the arc length is ...

... s = (9 cm)·π/3 = 3π cm

4 0
4 years ago
The number of users on a website is 3700 and is growing exponentially at a rate of
jek_recluse [69]

Answer:

3034 I think

Step-by-step explanation:

3034 I think because if u multiply 3700 times 0.82 give you 3034

8 0
3 years ago
Carrie has 40 more nickels than Joan has dimes. They both have the same amount of money. How many coins does each girl have? Wha
LuckyWell [14K]

Answer:

Carrie and Joan have 80 nickels and 40 dimes, respectively, and each one has an amount of money of 4 US dollars.

Step-by-step explanation:

Let be x and y the amounts of nickels and dimes that Carrie and Joan have, as c the total amount of money that both Carrie and Joan have. A nickel is a five cent coin and a dime is a ten cent coin.

The following equations are constructed after a careful reading on statement:

Carrie's amount of money:

0.05\cdot x = c (Eq. 1)

Joan's amount of money:

0.10\cdot y = c (Eq. 2)

Relation between amounts of coins:

x = y+40 (Eq. 3)

First we eliminate c by equalizing (Eq. 1) and (Eq. 2):

0.05\cdot x = 0.10\cdot y

Then, we reduce the resulting formula by (Eq. 3):

0.05\cdot (y+40) = 0.10\cdot y

y+40 = 2\cdot y

y = 40

And rest of variable are now determined:

x = 40+40

x = 80

c = 0.05\cdot (80)

c  = 4

Carrie and Joan have 80 nickels and 40 dimes, respectively, and each one has an amount of money of 4 US dollars.

5 0
3 years ago
An exterminator must treat the perimeter of a house for insects. If the house is 90 feet long and 30 feet wide, what is the tota
Anika [276]
Perimeter = 2l + 2w
perimeter = 2(90) + 2(30)
perimeter= 180+60
perimeter= 240 ft
4 0
4 years ago
HELP ME PLEASEEEEEEEEEE
eimsori [14]

Answer:

1. ratio - 1:4 (side to perimeter)

2. ratio - 4:1 (perimeter to side)

3. ratio - 1: 2 (radius to diameter)

Step-by-step explanation:

for 1. I just put 6/24 which simplies to 1/4. I tried the that with the rest and it equalled to 1/4

for 2. put 24/6 which is 4 (in fraction from 4 is 4/1)

for 3. 4/8 which equals to 1/2

4 0
3 years ago
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