Need Help please stuck on this one.

Answer:

-3.75

Step-by-step explanation:

Answer:

52 miles per hour

Step-by-step explanation:

The formula for Average speed is given as: Distance(miles)/Time in hours

From the question,

Distance = 117 miles

Time = 2.25 hours

Average Speed = 117 miles/2.25 hours

Average Speed = 52 miles per hour

The average speed that he was traveling is 52 miles per hour

Answer:

B. 20%

Step-by-step explanation:

Percentage Error = (Actual Value - Expected Value) / Expected Value * 100

Actual Value = 30

Expected Value = 25

Percentage Error = (30 - 25) / 25 * 100

Percentage Error = (5) / 25 * 100

Percentage Error = 0.2 * 100

Percentage Error = 20

Answer:

The width of the rectangle given is equal to 3m.

Step-by-step explanation:

In order to solve this question we need to know that the areas of the rectangle is equal to [tex]A_{rectangle} = (l)(w)[/tex], where "l" is length and "w" is width. So know in order to solve this question we would have to find out the unknown width by using area and the length of the triangle. Based on the formula I wrote down earlier we can understand the following.....

[tex]A_{rectangle} = (l)(w)[/tex]

[tex]\frac{A_{rectangle} }{l} = \frac{(l)(w)}{l}[/tex]

[tex]w = \frac{A_{rectangle} }{l}[/tex]

Just now we found out the formula that we can use to solve for the width when we know the area and the length of the rectangle. Now in order to get the answer we just have to plug in the values we know, and we get........

[tex]w = \frac{A_{rectangle} }{l}[/tex]

[tex]w = \frac{11m^{2} }{(3\frac{2}{3}m )}[/tex]

[tex]w = 3m[/tex]

Answer:

k = [tex]\frac{4}{3}[/tex]

Step-by-step explanation:

I assume the function is

f(x) = 2x³ - kx² + x - 8k

2(2)³ - k(2)² + 2 - 8k = 2

- 12k + 16 = 0

3k - 4 = 0 ⇒ k = [tex]\frac{4}{3}[/tex]

Answer:

8

Step-by-step explanation:

32/4=8

Answer: 8 minutes

Step-by-step explanation: You can use a proportion to calculate.

[tex]\frac{32}{4} = \frac{x}{1}[/tex]

32 x 1 / 4 = 8

8 minutes = 1 mile

Answer:

180

Step-by-step explanation:

To solve we must first plug 31 into each expression for x.

2(31)+5= 67

3(31)-9= 84

31-2= 29

Then, remember that the perimeter is the sum of all of the sides. So add all of the previous sums, 67+84+29. Therefore, the answer is 180.

Answer:

Step-by-step explanation:

Answer:

No real solutions

Step-by-step explanation:

Answer:

-528

Step-by-step explanation:

Answer:

This is the answer...And can I get the Brainliest

Answer:

its B

Step-by-step explanation:

Answer:

i don't know if you still need a answer or not-

Step-by-step explanation:

Answer:

I actually can't measure it, but if you will and cmt the measures, I can help you round them!!!

Step-by-step explanation:

Answer:

his faucet will leak 6/4 cup of water every hour, its c, you are correct good job, good luck

Step-by-step explanation:

Since it leaks 3/4 cups every 1/2 hour, in a whole hour it will leak twice as much:

[tex]\dfrac{3}{4}\cdot 2=\dfrac{6}{4}[/tex]

Answer:

$45

Step-by-step explanation:

so where the line intercepts the 2 hours is $45, and to find the .25 hours we take the $20 for working one hour and divide that by four, because .25 is 1/4 of an hour. so 20/4 is five. then you add 5 to 40 and we get $45 for work 2.25 hours. hope that helped

Answer:

The constant of proportionality = k = 2/5

Step-by-step explanation:

Also given that The number of gallons, g (/), is proportional to the number of

seconds, t (x).

i.e.

g ∝ t

g = k × t

k = g / t

as

g = 2

t = 5

Thus,

k = g / t

  = 2 / 5

Thus, the constant of proportionality = k = 2/5

Answer: its b

Step-by-step explanation:

Answer:

B.

Step-by-step explanation:

Answer:

it helps us to add faster bc we can regroup numbers when we add. in the associative property, the order of the numbers don't change, only the grouping does

Step-by-step explanation:

Answer:

Did you know that the associative property can help us solve problems faster? ... According to the associative property, we can regroup the numbers when we add, and we can regroup the numbers when we multiply.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Temperature is the abiotic factor that is changing the ecosystem. Both the top layer temperature and the overall temperature of the lake are increasing. The warmer temperatures have delayed the yearly springtime mixing of warm and cold water in the lake.

Answer:

8 hours

Step-by-step explanation:

520 miles divided by 65mph

Answer:

i think its B

Step-by-step explanation:

im not sure but im pretty sure if its wrong im sorry but im pretty sure its correct

Answer:

y = 70x - 1500

Step-by-step explanation:

Price per ticket = 70

Using the relation :

y = mx + c

x = number of tickets sold

When x = 10 ; y = - 800

Hence,

-800 = 70(10) + c

-800 = 700 + c

-800 - 700 = c

Hence, c = - 1500

The equation for the net profit in dollars is :

y = 70x - 1500

For the first one we divide every element by sqrt3

we get

q+2/sqrt3 =sqrt5/sqrt3

q=(sqrt5-2)/sqrt3

q=sqrt3*sqrt5-2*sqrt3/3

q=sqrt15-2sqrt3/3

which is the third option

For the second one

sqrt(2y-5) +4=8

first we move the 4 to the right

sqrt(2y-5)=4

we remove the square root by bringing to the power of two

2y-5=16

2y=21

y=21/2

y=10 1/2

third option

Answer:

f (x)=2x-9

[tex]\sf f^{-1 (3)}[/tex]

[tex]\sf f^{-1 (x)}[/tex]

We need to find

[tex]f^-3 \\ f^{-x}[/tex]

[tex]\qquad{:}\longrightarrow\tt f^-3=2^{-3}-9 [/tex]

[tex]\qquad{:}\longrightarrow\tt -8-9 [/tex]

[tex]\qquad{:}\longrightarrow\tt f^-x=2(-x)-9 [/tex]

[tex]\qquad{:}\longrightarrow\tt -2x-9 [/tex]

[tex]\qquad{:}\longrightarrow\tt f^{-x}=2x+9 [/tex]