Karrisa is going water skiing. She has a choice on either renting or purchasing the skis. She must also rent a safety jacket. She can purchase skis for $125 a pair. The rental fee for skis and a safety jacket is $30 per hour. The rental fee for only the safety jacket is $5 per hour. How many hours must she ski for the price of renting skis and purchasing the skis to be the same?

Answer:

The reciprocal of 2 is 1/2

The reciprocal of 6/11 is 11/6

Answer:

f(-3)=-17

Step-by-step explanation:

Substitue -3 for t

-2(-3)^2 + 1

Simplify

-2(9) + 1

-18 + 1

Answer: -17

A function is defined as a relation between a set of inputs having one output each.

The value of the function f(t) = -2t² + 1 at t = -3 is -17.

The domain of the function is -17.

The range of the function is -3.

A function is defined as a relation between a set of inputs having one output each.

f(x) = x + 2

At x = 2,

f(2) = 2 + 2 = 4

Domain = 2

Range = 4

We have,

f(t) = -2t² + 1

We need to find for t = -3.

f (-3) = -2 ( -3 )² + 1

[ -3 x -3 = 9 ]

f (-3) = -2 x 9 + 1 = -18 + 1 = -17

Thus the value of the function f(t) = -2t² + 1 at t = -3 is -17.

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Answer:

208

Step-by-step explanation:

Answer:8

Step-by-step explanation:

Answer:

the answer is B cause I just took a test with this question

Answer:

14.76 (if rounded by hundredths.)

Step-by-step explanation:

hoped this help </3

Answer:

x ≥ 32

Step-by-step explanation:

x + 18 ≥ 50

subtract 18 from both sides.

x ≥ 50 - 18

x ≥ 32

Answer:

5.099

Step-by-step explanation:

The required simplified value of the given expression is x = 1/3.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
Given expression is an exponential expression,
Though,
8ˣ = 2
Taking logs on both sides,
xlog8 = log 2
x = log2/log8
x = log2/3log2
x = 1/3

Thus, the required simplified value of the given expression is x = 1/3.

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Answer:

each part will have about 7.9 acres and the prime number is 53

Step-by-step explanation:

The probability that the teacher chooses two girls is 3 / 5.

Probability is defined as the ratio of the number of favorable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.

Probability = Number of favorable outcomes / Number of sample

Given that a teacher chooses two students in a class of 15 girls and 10 boys. The probability is calculated as:-

P = 15 / 25

P = 3 / 5

Hence, the probability is 3 / 5.

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Answer:

it shoudl be 2

Step-by-step explanation:

Answer:

3,7,11,9,5,1 all = 100

the rest = 80

Answer:

The three rules that we have are:

[tex]x^a*x^b = x^{a + b}[/tex]

[tex]\frac{x^a}{x^b} = x^{a - b}[/tex]

[tex](x^a)^b = x^{a*b}[/tex]

Then let's solve the problems:

A) 2^4 = 2^(2*2) = (2^2)^2 = 4^2 = 16.

B) 3^0 = 3^(a - a) = 3^a/3^a = 1. (for any real number a)

From this we can conclude that the power 0 of any number is equal to 1.

C)  4^6*4^(-3) = 4^(6 - 3) = 4^3 = 64

D) (2^3)^2 = 2^(3*2) = 2^6 = 64

Step-by-step explanation:

[tex]m = n + \frac{x}{p} \\ \\ \frac{x}{p} + n = m \\ \\ \frac{x}{p }= m - n \\ \\ x = m(p) - n(p) \\ [/tex]

Answer:

p(m - n) = x

Step-by-step explanation:

You want to "solve for x."  To do this, subtract n from both sides (for the purpose of isolating the x/p term):

m - n + x/p

Next, multiply all terms by p:

p(m - n) = x

Answer:

6

25

Step-by-step explanation:

divide. -25by -4 then the answer is that

Answer: The sprayer can hold 150 ounces, and Pam needs to add 120 ounces of water.

Step-by-step explanation:

The data that we know is:

We must use 30 oz of cleaning concentrate.

The end product must be 80% water and 20% cleaning concentrate.

This means that:

Mass of water/total mass in the sprayer = 0.8

mass of cleaning concentrate/total mass in the sprayer = 0.2

Then, let's define the variables:

X = ounces that the sprayer can hold.

Y = ounces of water added.

Then we have the equations:

30oz + X = Y.

30oz/Y = 0.20

X/Y = 0.80

From the second equation we can find the value of Y.

30oz = 0.20*Y

30oz/0.20 = Y = 150oz.

Then the sprayer can hold 150 ounces.

Now from the third equation we have:

X/Y = 0.8

We know that Y = 150oz

Then:

X/150oz = 0.8

X = 0.8*150oz = 120 oz.

Then the water that must be added is 120 ounces.

answer: 2x - y = 2

Explanation:

Answer:

x = 1

Step-by-step explanation:

1 + 24x + 105 + 51x - 1 = 180

75x = 75

x = 1

Answer:

78.909877

Step-by-step explanation:

89.0987

Answer:

160-24=x

Step-by-step explanation:

Answer:

A. the study had no control group

Answer:

you times the number by itself the number of times the power is. 10 to the fourth power is 10 times 10 times 10 times 10, etc.

Step-by-step explanation:

For instance 10 to the third power is 1000 because 10 times 10 times 10=1000/

For your example the answer is 2 times 2 times 2 times 2=16. To figure out how much you times it by is if it is to the power of 4, you times it by itself 4 times, power of 5 = times it by itself 5 times, etc. Hope it helps!

Answer:

1. 30

2. C = 18.3 B = 25% A=15 % rest  = unkown

Step-by-step explanation:

to find X is what percent of Y

X/Y multiplied by 100

Answer:

i believe it is C

Step-by-step explanation:

Answer: 6.5 hours

Step-by-step explanation:

You have to find out how long it’ll take, so you divide the total amount by the speed, so 455/70=6.5

Answer:6

Step-by-step explanation:

Step-by-step explanation:

I'm pretty sure that it is C.3x2-10x-15y