5. After t seconds, a ball tossed in the air from the ground level reaches a height
of h feet given by the function h(t) = 144t – 16t^2. PART A: What is the height of
the ball after 3 seconds? PART B: After how many seconds will the ball hit the
ground before rebound? -

Answer:

2x-y=0

x=1/2y

Step-by-step explanation:

Answer:

Your solution is (1/2, 1).

Step-by-step explanation:

3х + Зу = -x + 5y

First we want to look at each side of the equation separately.

3х + Зу ⇒ This expression is fully simplified because you cannot add different variables together.

-x + 5y ⇒ This expression is fully simplified because you cannot add different variables together.

3х + Зу = -x + 5y

Now, let's bring the like terms together.

[add x to both sides]

x + 3x + 3y = -x + x + 5y

4x + 3y = 5y

[subtract 3y from both sides]

4x + 3y - 3y = 5y - 3y

4x = 2y

We want to solve for one variable at a time, so let's isolate x.

[divide both sides by 4]

4x/4 = 2y/4

x = 1/2y

Now we have an expression for x. Plug this expression in to your original equation.

3х + Зу = -x + 5y

3(1/2y) + 3y = -(1/2y) + 5y

According to PEMDAS (parentheses/exponents | multiplication/division | addition/subtraction), we should multiply first.

3(1/2y) + 3y = -(1/2y) + 5y

3/2y + 3y = -1/2y + 5y

Now let's add on each side.

9/2y = 9/2

Now we need to isolate y by dividing both sides by 9/2 (or multiplying by its reciprocal 2/9 ← This is often easier to understand when written)

[tex]\frac{2}{9} (\frac{9}{2} y) = \frac{9}{2} (\frac{2}{9} )[/tex]

In this form, we can see that the fractions cancel each other out.

y = 1

Now that we have the value of y, plug it into our equation for x.

x = 1/2y

x = 1/2(1)

Multiply.

x = 1/2

Your solution is (1/2, 1).

You're almost done! Check your answer by plugging in both these values in to your original equation.

3х + Зу = -x + 5y

3(1/2) + 3(1) = -(1/2) + 5(1)

Multiply.

3(1/2) + 3(1) = -(1/2) + 5(1)

3/2 + 3 = -1/2 + 5

Add.

9/2 = 9/2

This equation is true, therefore your answer is correct!

Hope this helps!

Find the length of a side:

Length of side = √area

Side = √4

Side = 2 inches.

Now calculate Volume:

Volume = Side^3

Volume = 2^3

Volume = 8 cubic inches.

Answer:

22,-15 ................ maybe

Answer:

Impossible not likely to happen

Answer:

SRU

Step-by-step explanation:

Answer:

40%

Step-by-step explanation:

There's a total of 15 squares.

So the percentage that is gray would be [tex]\frac{6-gray-squares}{15-total-squares}[/tex] which simplifies to [tex]\frac{2}{5}[/tex] in fraction form or 40%

Answer:

49:35

Step-by-step explanation:

Divide 49 and 35 and then you can Get Answer..

Answer:

Step-by-step explanation:

ratio of 49 cm to 35 cm

=> 49:35 { divide by 7}

=> 7:5 cm

Answer:

9 4/5

Have a beautiful day!

Answer:

The mixed number for 9.8 would be 9 4/5. I need brainliest

the midpoint is (-3,2)    

Answer:

mp=cp+25%ofcp=1.25cp

discount=5%

discount amount=d%ofmp=5/100×0.25cp=0.0125cp

sp=mp-discount=1.25cp-0.0125cp=1.2375cp

profit%=(sp-cp)/cp×100%=(1.2375cp-cp)/cp×100%=0.2375cp/cp×100%=0.2375×100%=23.75%

Answer:

I guess it is correct

Answer:

Your Balance Would Be $1400.

How I Found The Answer:

$1000 Is 100%

$1000 ÷ 100 = $10

$10 Is 1%

$10 × 8 = $80

$80 × 5 = $400

$1000 + $400 = $1400

Your Balance Would Be $1400.

Answer:

5x - 2y= -28

Step-by-step explanation:

Since the y= mx + b format would be: y= 5/2x + 14

Standard form is: 5x - 2y= -28

Answer:

The awnser would be 9 because its under the sum of 10

Answer:

9 (see below)

Step-by-step explanation:

So, for a triangle, if you add any two sides, it will always be greater than the third side.

So if a triangle has sides of 1, 1, and 1:

1 + 1 > 1

1 + 1 > 1

1 + 1 > 1

So this is a triangle.

For a triangle with the sides of 3, 3, and 9:

3 + 9 > 3

9 + 3 > 3

3 + 3 > 9   (this one is not true)

So, these can't be the values of the sides of a triangle.

For your situation, you have a triangle with sides of 4, 6, and x.

We need to find out what x is, so:

4 + 6 > x

4 + x > 6

6 + x > 4

Isolate x to one side and simplify all the inequalities. You will get:

x < 10

x > 2

x > -2

So, -2 < x < 10.

If you plug in your answer choices, it will be 9.

I beleive the answer is D and C

Option (A) 4x³y + 6y and (C) 3y³ + 3x²y² are fourth-degree binomials.

Polynomial is the combination of variables and constants systematically with "n" number of power in ascending or descending order.

[tex]\rm a_1x+a_2x^2+a_3x^3+a_4x^4..........a_nx^n[/tex]

A. 4x³y + 6y

Here, the sum of the power of x and y is 4(3+1)

It is a fourth-degree binomial.

B. 4y³ + 4x³

Here, the power of x and y are 3

It is not a fourth-degree binomial.

C. 3y³ + 3x²y²

Here, the sum of the power of x and y is 4(2+2)

It is a fourth-degree binomial.

D. 3x⁴- 3x³y²+ 7xy³+4

Here, the sum of the power of x and y is 4(2+2) and greatest degree is 5(3+2)

It is not a fourth-degree binomial.

Thus, option (A) 4x³y + 6y and (C) 3y³ + 3x²y² are fourth-degree binomials.

Learn more about Polynomial here:

brainly.com/question/17822016

#SPJ2

it's 7

Hope it helps

Have a good day

Answer: Hope this helps!

Step-by-step explanation: To solve this problem you should take into the following steps :

1) Subtract fractions correctly as a cross-product

2) Rewrite the second-degree polynomials correctly.

3) Cancel terms that have the same exponent.

4) Make algebraic sums correctly.

M=3

Answer:

96 school days

Step-by-step explanation:

i hope this is right but tell me if its wrong

Answer:

Step-by-step explanation:

5[tex]\frac{1}{2}[/tex]+2[tex]\frac{1}{7}[/tex]

5[tex]\frac{7}{14}[/tex]+2[tex]\frac{2}{14}[/tex]

7 9/14  or 7[tex]\frac{9}{14}[/tex]

Answer:

[tex] \frac{135}{14} [/tex]

Answer:

171 cm³

Step-by-step explanation:

The object is composed of a cone and a cylinder.

Volume of the object = volume of cone + volume of cylinder

✔️Volume of Cone = ⅓πr²h

r = ½ of 6 = 3 cm

π = 3

h = 5 cm

Volume of cone = ⅓×3×3²×5

Volume of cone = 45 cm³

✔️Volume of cylinder = πr²h

π = 3

r = ½ of 6 = 3 cm

h = 14 cm

Volume of cylinder = 3×3×14

Volume of cylinder = 126 cm³

✔️Volume of the object = 45 + 126 = 171 cm³

Answer:

m=5 , a=3 x= 3 you get that by looking at the other numbers that they provided.

Answer:

Yes,(3,1) is a solution because (3,1) is covered when you shade it in on the graph.

Answer:

Step-by-step explanation:

its c=5

6y+18+3=51

6y+21=51

6y=51-21

6y=30

y=5

Answer:

c.5

Step-by-step explanation:

6(y+3)+3=51, 6 multiply both y and 3

6y+18+3=51

6y+21=51

6y+21-21=51-21

6y=30

6y/6=30/6

y=5

hope it's helpful

THANK YOU.

Answer:

Step-by-step explanation:

£2.25 X 60 = £135

135 - 125= £10

£10/125 x 100 = 8%

Answer:

hi love u

Step-by-step explanation:

wanna talk its bruce

Answer:

Option B

Both are Given..

hope it helps