HELP U WILL GET BRAINLIEST
The height of a male athlete testing his vertical jump can be modeled by h = − 16t ^2 + 14t. The height is h and the time is t. How many seconds is he in the air?

Answers

Answer 1

Answer:

0.88 (I think this is how Mrs. Futch wants it to be written)

Step-by-step explanation:

h=-16t^2+14t

(Substitute h with 0)

0=-16t^2+14t

(Factor)

0=2t(-8t+7)

2t=0               -8t+7=0

t=0                  t=0.88

{0, 0.88}

(John Komperda)


Related Questions

There are cows and turkeys at a farm, 82 heads and 264 legs in all. There is no need to explain that a cow has four legs, while a turkey has two legs. How many cows and turkeys are at the farm? How can I solve this using elimination or substitution can I have steps please. No spamming please

Answers

Cows have 4 legs and turkeys have 2 legs. They each only have one head.
Cows+turkeys=82
4 cow legs + 2 turkey legs = 264
C+T=82
-T. -T
—————
C= 82-T wherever you see a “C” substitute this formula

4C+ 2T=264
4(82-T)+ 2T=264
(82*4)- (4T+2T)= 264

328-2T=264
-328. -328
————————
-2T= -64

-2T/-2= -64/ -2

T=32 there are 32 turkeys
There are 82 heads total
If we know there are 32 turkeys then the rest have to be cows.
82-32=50
Hope this helps!

pls help

linear equations

Answers

Answer:

I don’t think nobody can help you here because the picture doesn’t show up, sorry

Answer:

B) y=-x+8

y=2x+5

Step-by-step explanation:

B.  If you substite 1 for x and 7 for y, they both work.

Consider parallelogram ABCD. If AC¯¯¯¯¯¯¯¯=2x+15 and BD¯¯¯¯¯¯¯¯=5x−12, what does the value of x need to be so that the parallelogram is a rectangle?
A: 1
B: -9
C: 9
D: 3/7

Answers

Answer:

9

Step-by-step explanation:

I took the quick check

Which set of angle measures can be used to construct a triangle?
Group of answer choices

60°, 60°, 90°

45°, 45°, 90°

100°, 50°, 50°

35°, 65°, 95°

Answers

Answer:

c

Step-by-step explanation:

Answer:

45 45 and 90

Step-by-step explanation:

please mark me the brainliest, 5 stars, and a thanks! Have a great day!

Evaluate the expression if b= 6 and c= 10.

5b/c

Answers

Answer:

=3

Step-by-step explanation:

5b/c

=5*6/10

=30/10

=3

Answer:

If b = 6 and c = 10, the value of an expression is 3.

Step-by-step explanation:

Given the expression

[tex]\frac{5b}{c}[/tex]

We have to evaluate the expression if b = 6 and c = 10.

Important Tip:

In order to evaluate the expression  [tex]\frac{5b}{c}[/tex], all we need to do is to substitute the value of b and c in the expression.

As the expression is

[tex]\frac{5b}{c}[/tex]

substitute b = 6 and c = 10 in the expression

[tex]\frac{5b}{c}=\frac{5\left(6\right)}{10}[/tex]

     [tex]=\frac{30}{10}[/tex]

      [tex]=3[/tex]       ∵ [tex]\frac{30}{10}=3[/tex]

Therefore, if b = 6 and c = 10, the value of an expression is 3.

Can somebody explain why 8/17 is correct. Will make brainliest.

Answers

Answer:

8/17 is correct because cosine = adjacent/hypotenuse, and since angle A is theta, or the reference angle, the adjacent of A would be 8, and the hypotenuse is always across the right angle.

15/17 would be sine instead of cosine

Will mark Brainliest!!!!
the three are
perpendicular
parallel
neither parallel nor perpendicular ​

Answers

Answer:

ParallelNeither parallel nor perpendicular ​Perpendicular

Step-by-step explanation:

Given line m:

y = 4/5x - 3

Relationship of line m with following lines:

1. y = 4/5x + 3

Same slope, different y-interceptParallel

2. y = -4/5x + 3

Slope are negative, different y-intercept Neither parallel nor perpendicular ​

3. y = - 5/4x + 3

Slopes are negative-reciprocal, different y-interceptPerpendicular

please help i have 1 hour to compleate

Answers

Answer:

2nd one is right

I am confused boii

Step-by-step explanation:

LIVE AND LET LIVE music on the outline map of india mark

It’s the 2nd one. Jesus Jenny is tall she’s like slenderman or somethin

A company is designing a new cylindrical water bottle. The volume of the bottle will be 99 cm³. The height of the water bottle is 7.8 cm what is the radius of the water bottle. Use 3.14 for

Answers

Answer:

2.08

Step-by-step explanation:

99/7.8=13.56

13.56/3.14=4.32

the square root of 4.32 is 2.08

plz help i will give brainiest

Answers

Answer:

So I'm guessing its

x| -7, -6, -5, -4, -3

y| -2, 1, 4, 1, 2

Step-by-step explanation:

The answer I got was its a vertex. so yeah. and I think you just put the -2 on the Y

If the area of one face of cube is 169 cm2 then what will be the volume of cube. Working please!

Answers

Answer:

the answer is 2197cm^3

Step-by-step explanton

to find the side we need to take a square root of 169 which is 13 and then we need to multiply 13 3 times to get the answer which is 2197 and we use cm ^3 for   volume of the cube

find the y and x intercept for
4x-y=12

Answers

Answer:

x intercept: (3,0)

y intercept: (0, -12)

5x^2-10x=0 written in factored form​

Answers

Answer: 2,x=0
You can use symbolab

helppppp me pleaze
pleaze

Answers

A and C are correct

what is 4.059 divided by 100

Answers

Answer:

0.04059

Step-by-step explanation:

The lowest point on the Earth's surface is in the Mariana Trench in the
Pacific Ocean. It has a depth of about 36,069 feet. Which is this depth
written in scientific notation?
A 36 x 103
B 3.6 x 104
C 3.6 x 105
D 0.36 x 105

PLEASE HELP MEEE!

Answers

Answer:

3.6069 × 104

Step-by-step explanation:

I’ll give BRAINLEST I need this now though

The speed of light is about 300,000,000 meters per second. That's
about 3 * 10^8 meters per second. The speed of sound in dry air is
about 3 * 10^2 meters per second.
About how many times faster does light travel than sound in dry air?

Answers

Answer:

Light is about 299,999,700 mps (meters per second) faster than sound in dry air.

Step-by-step explanation:

We know that the speed of light is about 3 × 10 ^ 8 meters per second and that the speed of sound in dry air is about 3 × 10 ^ 2 meters per second. We need to solve 3 × 10 ^ 8 minus 3 × 10 ^ 2.

3 × 10 ^ 8 - 3 × 10 ^ 2 =

300,000,000 - 300 = 299,999,700

Light is about 299,999,700 mps (meters per second) faster than sound in dry air.

Answer: 3 x 10^2 m/s times 10^6 = 3 x 10^8 m/s

Step-by-step explanation:

Please help meeeeeeeeeeeee

Answers

Answer:

Equation 1: 50 + 5x = 80, Or 5(10 + x) = 80

Equation 1 answer: 6

Equation 2: 5x + 10 = 80

Equation 2 answer: 14

One aftemoon 10 inches of snow falls in 1 1/4 hours. At this rate, how many inches of snow fall in 1 hour?
inch(es) per hour

Answers

Answer:

8

Step-by-step explanation:

10 divided by 1 1/4 = 8

find the area of a circle if its radius is 6 millimeters?

Answers

The answer is 36pi
Hope this helps :)

What percentage
of total hours was
spent jogging?

if you find the total hours for each sport i’ll give u brainlistttt paleeease

Answers

Answer:

40%

Step-by-step explanation:

So I mostly will focus on the jogging total hours because thats literally what it says lol. Anyways, here I used the percent equation, which is

___ is ___% of ___. Since the question is "what percent", we mark our blank percent part as x, and when I fill the equation in it will seem like this:

"20 is x% of 50 (total hours)". So, now I translate, and this means:

20=x50, or in other words, 20=50x. To get x alone we divide by 50, but we also do it for the 20. 20/50 is .4, but because it has to be a percent, we move the decimal 2 places to the right, which gives 40, and finally it becomes

40%.

Hope it helps

Answer:

40%

Step-by-step explanation:

(20 hours Jogging)/(50 hours Total) = 0.4

0.4 * 100 = 40

Evaluate the following expression if x = 3. x2

Answers

Answer:

6

Step-by-step explanation:

x2

x=3

sub 3 into x

(3)2

=6

someone help ASAP I need the find the graph equation for this question

Answers

Answer:

In order to find the graph equation, we can use the points given:

(0,1) (-1,4) (1,-2)

(slope between (0,1) (1,-2): -3)

y = mx + b or y = -3x + 1

Help please i always get the numbers mixed up.

Answers

The answer is D: (-3, -4)
The awnser is D -3-4

pls help has to be in a fraction​ ill give brainliest.

Answers

Answer:

-5/4

Step-by-step explanation:

slope = -4 - (-29) / -10 - 10

slope = 25 / -20

slope = -5/4

5x^2-41x+8=0 please helpp

Answers

Answer:

Use the quadratic formula

=

±

2

4

2

x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}

x=2a−b±b2−4ac​​

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

5

2

4

1

+

8

=

0

5x^{2}-41x+8=0

5x2−41x+8=0

=

5

a={\color{#c92786}{5}}

a=5

=

4

1

b={\color{#e8710a}{-41}}

b=−41

=

8

c={\color{#129eaf}{8}}

c=8

=

(

4

1

)

±

(

4

1

)

2

4

5

8

2

5

2

Simplify

3

Separate the equations

4

Solve

Solution

=

8

=

1

5

x=8
X= 1/5 is solution

Which is the graph of f(x)=4^x

Answers

Answer: The answer choice on the left, AKA the first one.

Step-by-step explanation:

cuál es el resultado de 1/3 entre 4/7?

A._ 4/21
B._ 7/12
C._ 12/7
D._ 21/4​

Answers

Answer:

La leche que sale del huevo

Joe wants to multiply a number by 15. First, he multiplies the number by 5. What number does he now need to multiply his answer by?

Answers

Answer: 3

Step-by-step explanation: its 3 because 5X3=15


What would be the first step in solving this problem -18 = 2x

Answers

divide 2 from both sides
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