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Lena [83]
3 years ago
15

Please help answer this thanks

Mathematics
1 answer:
ioda3 years ago
7 0
3√3a (hope it helps)
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-8(7 + x) = 137<br> What can be used to solve this problem
alexgriva [62]

Answer:

-24.5

Step-by-step explanation:

-56+-8x=137

-8x=196

x=-24.5

3 0
3 years ago
Solve for r:<br>8x+36<br>5x + 60°​
Ksju [112]

Answer:

Step-by-step explanation:763

8 0
3 years ago
It is estimated that 30% of households own a riding lawn mower. A sample of 17 households is studied. What is the standard devia
alina1380 [7]

Answer:

1.89 is the standard deviation of households who own a riding mower

Step-by-step explanation:

Let the random variable X denote the number of households owning a riding lawn mower. From the given information, X will be a Binomial random variable with parameters; n = 17 and  p = 30% = 0.3

The standard deviation of X;

\sqrt{n*p*(1-p)}

\sqrt{17*0.3*(1-0.3)} =1.89

7 0
3 years ago
Dave won a hot dog eating contest by eating 18 hot dogs in 10 minutes. He ate two more than twice the amount of the runner-up. W
IrinaVladis [17]

Answer:

The correct anser is option

B. 2x + 2 = 18

Step-by-step explanation:

Let the number of hot dogs eaten by the runner up be represented by x

If Dave ate 2 more than twice x, this means that the number eaten by him = 2x + 2

Since the total number of hot dogs eaten by Dave is 18

Therefore, the equation will be

2x + 2 = 18

So the number of hot dogs eaten by the runner-up is determined by solving for x

2x= 18-2

2× = 16

x = 16/2

x = 8

The runner up are 8

While Dave are

2×8 + 2 = 18.

8 0
3 years ago
Read 2 more answers
The sales tax in your city is 8.8%, and an item costs $63 before tax.
Maru [420]

Answer: 5.54

Step-by-step explanation:

amount of tax paid = item cost * tax rate

item cost = 63

tax rate - 8.8% = 0.088

tax paid = 63 * 0.088 = 5.54

8 0
3 years ago
Read 2 more answers
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