Can anybody do these for me hurry ?

Answer:

[tex]t = 4\\[/tex]

or

[tex]t=0.6875[/tex]

Step-by-step explanation:

[tex]124 = -16t^2+75t+80\\-16t^2+75t-44=0[/tex]

Solving for t using the quadratic formula we get:

[tex]t = 4\\[/tex]

or

[tex]t=0.6875[/tex]

The times taken by the ball to be 24 feet above the ground is t = 4 and t = 0.68 seconds.

The function given for the height of the ball thrown is;

h(t) = -16t^2+75t+80

In which, h is the  height in feet,

t, is the time till ball is in air( in seconds. )

When height h = 124 feet.

Time t = ?

Put h = 124 in the given equation.

124 =  -16t^2+75t+80

On solving.

-16t^2+75t-44 = 0.

16t^2 - 75t + 44 = 0.

Solve the quadratic equation by the quadratic formula,

t = 4 and t = 0.68 seconds.

Thus, the times taken by the ball to be 24 feet above the ground is t = 4 and t = 0.68 seconds.

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Answer:

x = 3

Step-by-step explanation:

12x =  36

There is only one step

Divide both sides by 12

x = 3

Answer: what he said

Step-by-step explanation:..

Answer:

r =3j

Step-by-step explanation:

r = raul

j = juan

r = 3x

x=j

r = 3j

Answer:

4f - 20

Step-by-step explanation:

Answer: [tex]6^{\circ}C[/tex]

Step-by-step explanation:

Given

The temperature in Canada at 6 am  on Christmas was [tex]-5^{\circ}C[/tex]

By noon the temperature had risen by [tex]11^{\circ}C[/tex]

So, the temperature  in Canada at  noon is

[tex]\Rightarrow -5+11\\\Rightarrow 6^{\circ}C[/tex]

Answer:

1200ft^3

Step-by-step explanation:

30 x 20 x 2= 1200^3

The area is 27

I hope I'd have helped!

Answer:

10.82

Step-by-step explanation:

Under the Pythagorean theorem:

A is 6

B is 9

C is ?

6 ^ 2 + 9 ^ 2 = 117

√ (117) = 10.8166538264

10.82 m

Answer:

(- 3/13, 56/13)

Step-by-step explanation:

See steps below:)

The probability that a randomly selected ticket holder from yesterday is a child or was on the evening trip is 0.62 or 62%.

To calculate the probability that a randomly selected ticket holder from yesterday is a child or was on the evening trip, we will use the formula: $P(\text{Child or Evening Trip}) = P(\text{Child}) + P(\text{Evening Trip}) - P(\text{Child and Evening Trip})$.We are given that there were 7 children on the morning trip and 24 adults on the evening trip.

Therefore, the number of children who were on the evening trip is 0. Hence, $P(\text{Evening Trip}) = 24/50 = 0.48$.

Similarly, the number of children who were not on the evening trip is 7, while the number of adults who were not on the evening trip is $50 - (7 + 24) = 19$. Hence, $P(\text{Child}) = 7/50 = 0.14$.

Since no child was on the evening trip, $P(\text{Child and Evening Trip}) = 0$.

Substituting these values in the formula above, we get: $P(\text{Child or Evening Trip}) = 0.14 + 0.48 - 0 = 0.62$

Therefore, the probability that a randomly selected ticket holder from yesterday is a child or was on the evening trip is 0.62 or 62%.

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supplementary angles = 180°

180 - 39 = 141 °

141°

Where's the histogram?

Answer:

C. The data are skewed to the left, so the median height is greater than the mean height.

Step-by-step explanation:

If this is this is what your questions look like, then the answer is C because the mean is typically less than the median when the data is skewed left.

Answer: b=8 m=2

Step-by-step explanation: when x is 0 y=8 so that gives you the y-intercept. When you subtract 8-6 its 2 which is over 2 which is 2

Answer: y = -2x + 4

Step-by-step explanation:

First, you can find b (the y-intercept) from the coodinates. Where y=0, x=4. This is your y intercept (b).

To find the slope (m), take two points from the graph:

Let's use (2,4) and (3,2). Next, find the difference in the x and y values.

Difference in Y = 4-2 = 2

Difference in X = 2 - 3 = -1

Now we can find the slope by dividing the difference in y values by the difference in x values:

2/-1 = -2 (m = -2)

Now plug the values for b and m into your equation.

y = -2x + 4

Answer:

15

Step-by-step explanation:

Answer:

56

Step-by-step explanation:

by the formula at the bottom, it would be 1/2h(b1 + b2)

so h = height and the height is 7 feet. 1/2 of 7 feet is 3.5

b1 would be 12 feet, and b2 would be 4 feet. so first let’s do the (.    )

12 + 4 = 16

now the problem is 3.5(16)

3.5 x 16 = 56

now i just went off the formula, but i think that’s right. good luck!

Answer:

56

Step-by-step explanation:

Area of a Trapezium = 1/2 × sum of parallel sides× height

= 1/2× (12+4)×7

=1/2 × 16×7

= 8×7

= 56

Answer: the base should be 10

Step-by-step explanation:

Answer: third one ( I could be wrong )

Step-by-step explanation:

Answer:

its the 3rd one

Step-by-step explanation:

Answer:

$116

Step-by-step explanation:

The Simple Interest formula is i = prt.  Here,

i = ($1,450)(0.04)(2 yr) = $116

Answer:

Step-by-step explanation:

The difference in balances is:

Answer:

8040

Step-by-step explanation:

bc it is lol

Answer:

Last option e : X=0

Step-by-step explanation:

X=0

Answer:

x = 0

Step-by-step explanation:

I got it correct on Odyssey.   : )

Answer:

4/6

Step-by-step explanation:

→ Write the slope formula

(y₂ - y₁) ÷ (x₂ - x₁)

→ Substitute in the numbers

(3 - -1) ÷ (4 - -2)

→ Simplify

4/6

Answer:

m = 2/3

Step-by-step explanation:

Answer:

x=8 or x=1 1/5

Step-by-step explanation:

x-8=0   5x-6=0

x=8       5x=6

             5x/5=6/5

               x=1.2 or 1 1/5

I hope this helps! :)

I'M SORRY I GOT IT WRONG

Answer:

5 x 3 = 15, 15 x 4 = 60

60 x 1/3(basically just dividing by 3) = 20 in3

Answer:

H) 20

Step-by-step explanation:

Formula for the volume of a rectangular pyramid:

V = (whl)/3

Given:

w = 3

h = 4

l = 5

Work:

V = (whl)/3

V = (3 × 4 × 5)/3

V = (60)/3

V = 20

Answer:

0.50

Step-by-step explanation:

The sample proportion to be found for 98% confidence interval is

D. 0.50.

The mean of your estimate plus and minus the range of that estimate constitutes a confidence interval.

Within a specific level of confidence, this is the range of values you anticipate your estimate to fall within if you repeat the test.

In statistics, confidence is another word for probability.

Given, Sample = (0.47, 0.53).

Confidence interval = 98%.

Therefore, The sample proportion is,

= (0.47 + 0.53)/2.

= 1/2.

= 0.5.

So, The sample proportion is 0.50.

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Answer:

x = 11

Step-by-step explanation:

Using Secants ad Segments Theorem we can say;

(x + 7) (7) = (15 + 6) (6)

7x + 49 = (21) (6)

7x + 49 = 126

7x = 77

x = 11

Hope this helps!

Answer:

3n meble

3n - 3 meble pozostały

Step-by-step explanation:

n stoły

2n - 3 krzesła

n + 2n = 3n