PLEASE HELP!! WILL GIVE BRAINLIEST!!

An archer shoots an arrow into the sky where the motion of the arrow can be modeled by the equation:
f(t) = -16t² + 80t
where t is time in seconds and f(t) is height in feet.
Find how long it will take the arrow to hit the ground using an algebraic method
Show all of your reasoning/steps used with this algebraic method.​

Answer:

12, 43/63

Step-by-step explanation:

Answer: 12 43/63

Step-by-step explanation: it was correct on my test

Answer:a-20miles

b-5miles

C-35 miles

Step-by-step explanation:

Answer:

250 hamburgers were sold on monday.

Step-by-step explanation:

were going to subtract 70 from 500 leaving us with 500 and then divide it by 2 (hamburger and cheeseburger). so we have 250 now. then were going to add 70 to 250 and we'd get 320. so there were 320 cheeseburgers sold on monday and 250 hamburgers sold on monday. to check our work, 250+320=570. 570-320=250.

Answer:

215 hamburgers

Step-by-step explanation:

First, you need to find out what 570 divided by 2 is. It's 285 (570/2=285)

Next, you need to add 70 to 285. It's 355 (285+70=355)

Lastly, you need to subtract 355 from 570. It's 215 (570-355=215)

Thus, the were 215 hamburgers sold on Monday.

Hope this is right and helps!

Answer:

-x

Step-by-step explanation:

Simplifying

5x + 2 = 3x

Reorder the terms:

2 + 5x = 3x

Solving

2 + 5x = 3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3x' to each side of the equation.

2 + 5x + -3x = 3x + -3x

Combine like terms: 5x + -3x = 2x

2 + 2x = 3x + -3x

Combine like terms: 3x + -3x = 0

2 + 2x = 0

Add '-2' to each side of the equation.

2 + -2 + 2x = 0 + -2

Combine like terms: 2 + -2 = 0

0 + 2x = 0 + -2

2x = 0 + -2

Combine like terms: 0 + -2 = -2

2x = -2

Divide each side by '2'.

x = -1

Simplifying

x = -1

= -x

I hope this helped, please mark Brainliest, thank you!! =)

Answer:

Answer: None

Step-by-step explanation:

Polynomial Remainder Theorem

The polynomial remainder theorem establishes that the remainder of the division of a polynomial f(x) by (x-k) is equal to f(k), that is, substituting x for k.

We are given the polynomial:

[tex]f(x)= x^4+x^3-x^2+x-1[/tex]

And it's required to know if (x+1) and/or (x-1) are factors of the polynomial.

We apply the theorem for both cases.

For (x+1), we substitute x=-1 into the polynomial:

[tex]f(-1)= (-1)^4+(-1)^3-(-1)^2+(-1)-1[/tex]

[tex]f(-1)= 1-1-1-1-1=-3[/tex]

Since the remainder is not zero, x+1 is not a factor of the given polynomial.

For (x-1), we substitute x=1 into the polynomial:

[tex]f(-1)= (1)^4+(1)^3-(1)^2+(1)-1[/tex]

[tex]f(-1)= 1+1-1+1-1=1[/tex]

Since the remainder is not zero, x-1 is not a factor of the given polynomial.

Answer: None

Answer:

25.97!!!!

Step-by-step explanation:

Answer:

TO find the answer of this mulitiply the percent in decimal form (move decimal point twice to the left)  by the number.

25.97 is correct

Step-by-step explanation:

Answer:

8x - 3

General Formulas and Concepts:

Step-by-step explanation:

Step 1: Define expression

6x + 2x - 3

Step 2: Simplify

Answer:

Price of Mira Breakfast = 9 $ before tip

Step-by-step explanation:

Let say Mira's breakfast Price = B $

Tip she left = 20 %

20 % Tip amount =  (20/100) B =  0.2B $

Tip Amount She left = $ 1.8

Equating Tip Amount

0.2B = 1.8

=> B = 9

Price of Mira Breakfast = 9 $ before tip

Step-by-step explanation:

Answer:

wheres the diagram?

Step-by-step explanation:

need the diagram in order to answer the question

Answer: Should it be 68 or 94

Step-by-step explanation:

Answer:

y= -2x+6

Step-by-step explanation:

use point slope form ----> y-y,=m(x-x,)

(the commas serve as ones)

y-4= -2(x-1)

use distributive property

y-4= -2x+2

add 4 to each side

y= -2x+6

Answer:

im struggling as well

Step-by-step explanation:

Answer:

Hope this helps!

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given

point (3,-7)

m = 5

Solution

y - y1 = m(x - x1)

y - (-7) = 5(x - 3)

y + 7 = 5x - 15

y = 5x - 15-7

y = 5x-22

Answer

The equation in point-slope form that passes through the point (3,-7)and has a slope of 5 is line Y=5x-22

Answer:

The answer is R= -5 which is the choices A.

Step-by-step explanation:

hope this helps

Answer:

r = -5

Step-by-step explanation:

8r - 12r = 8 + 12

-4r = 20

r = 20/-4

r = -5

Answer:

4x - 2

Step-by-step explanation:

Simplify the expression:

[tex]-2x+3-(5-6x)[/tex]

First, we must remove the parentheses. The minus sign before them indicates we must apply the distributive property of multiplication, multiplying all the internal terms by -1:

[tex]-2x+3-5+6x[/tex]

Once the expression is free from parentheses, we collect like terms. There are two pairs of like terms: the terms with x, and the terms with only numbers.

Rearrange the expression:

[tex]-2x+6x+3-5[/tex]

Operating: -2+6=4, and 3-5=-2

The simplified expression is:

4x - 2

Answer:

Total earned= $273

Step-by-step explanation:

Giving the following information:

Regular labor hours= $5.25

Overtime labor hours= $5.25*1.5= $7.875

To calculate the total earned, we need to use the following formula:

Regular labor hours= 40*5.25= 210

Overtime labor hours= 8*7.875= 63

Total earned= 210 + 63

Total earned= $273

Answer:

x=60 degrees

Step-by-step explanation:

The sum of angles in a triangle is 180 so if all angles in the triangle are equal, you just do 180 divided by 3 to get 60.

The value of 3t is given by the equation A = 75

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

2 ( 3t - 10 ) = 40 + 4t

On simplifying the equation , we get

6t - 60 = 40 + 4t

Subtracting 4t on both sides of the equation , we get

4t - 60 = 40

Adding 60 on both sides of the equation , we get

4t = 100

Divide by 4 on both sides of the equation , we get

t = 25

So , the value of 3t = 25 x 4

The value of 3t = 75

Hence , the equation , 3t = 75

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ6

Answer:

[tex]\underline{ \boxed{ \underline{part \: a}}}. \\the \: required \: distance \: a part \: be \to \: \boxed{\underline {\overline{p } =79.23 \: km} } \\ \\ \underline{ \boxed{ \underline{part \: b}}}. \\ the \: bearing \: of \: \boxed{ B } \: \: from \: \boxed{ \underline{A}} \: is \to \boxed{ \underline{324 }\degree }[/tex]

Step-by-step explanation:

[tex] \underline{ \boxed{ \underline{part \: a}}}. \\ l et \: the \: required \: distance \: apart \: be \to \: \boxed{ \overline {p}} \\ let \: \boxed{ \angle \: P} \: be \: the \: angle \: of \: seperation \: between \: both \: ships :given \: by \to \\ P = (244 - 180) - (196 - 180 )= (64 -16) = \boxed{48 \degree} \\ if \: ship \: A \: and \: B \: left \: the \: port\: at \: (10:30) \: \\ then \: at \: (14 :00) \: their \: time \: interval \: would \: be \to \\ (14 : 00) - (10 : 30) = \boxed{ 3.5 \: hrs} \\ ship \: \boxed{A }\: distance \: from \: the \: port =( v \times t) = (30 \times 3.5) = \boxed{105 \: km} \\ ship \: \boxed{B }\: distance \: from \: the \: port =( v \times t) = (24 \times 3.5) = \boxed{84\: km} \\n ow........we \: cant \: do \: much \: if \: their \: are \: no \: angles \: to \: work \: with \to \\ applying \:t he \: cosine \: rule : we \: have \to \\ \cos(P) = \frac{ {a}^{2} + {b}^{2} - \overline{{p}^{2} } }{2(ab)} \\ {a}^{2} + {b}^{2} - \overline{{p}^{2} } = 2(ab) \cos(P) \\ \overline{{p}^{2} } = {a}^{2} + {b}^{2} - \{2(ab) \cos(P) \} \\ \overline{{p}^{2} } = {84}^{2} + {105}^{2} - \{2(84)(105) \cos(48 \degree) \} \\\overline{{p}^{2} } = 18,081 - 11,803.463897 \\ \overline{{p}^{2} } = 6,277.536103 \\ \overline{p } = \sqrt{6,277.536103} \\ \boxed{\underline {\overline{p } =79.23 \: km} } \\ \\ \underline{ \boxed{ \underline{part \: b}}}. \\ to \: sove \: this : we \: first \: find \: angle \: \angle \: B : by \: applying \to \\ \frac{ \sin(B) }{b} = \frac{ \sin(P) }{p} \\ p \ast \sin(B) = b \ast \sin(P) \\ B = \sin {}^{ - 1} ( \frac{ b \ast \sin(P)}{p} ) \\ B = \sin {}^{ - 1} ( \frac{ 105 \times \sin(48 \degree)}{79.230903712} ) \\ \\ B = \sin {}^{ - 1} ( \frac{ 78.030206678}{79.230903712} ) \\ \\ B = \sin {}^{ - 1} (0.9848455971) \\ \boxed{B = 80 \degree} \\ hence \ : the \: bearing \: of \: \boxed{ B } \: \: from \: \boxed{ \underline{A}} \: is \to \\ 360 - \{180 - (80 + 48 + 16) \} \\ 360 -(180 - 144 )\\ 360 -36 = \boxed{324 \degree }[/tex]

♨Rage♨

Answer: Perpendicular.

Step-by-step explanation:

If you multiply the slopes together you will get -1:

[tex]3 * -\frac{1}{3} = -1[/tex]

Parallel means they have the same slope, so that is easily ruled out here.

Answer:

WAT! What diagram???

Step-by-step explanation:

Answer: No, because the center pod is where the medians meet

Given:

Seven equal-sized square photos arranged in a row to form a rectangle.

Total area of the collage is 567 square inches.

To find:

The length of the collage.

Solution:

Let the side of each square be x inches.

Seven equal-sized square photos arranged in a row to form a rectangle.

So, length of rectangle is 7x and width is x.

Area of rectangle is

[tex]Area=Length\times width[/tex]

[tex]567=7x\times x[/tex]

[tex]567=7x^2[/tex]

[tex]\dfrac{567}{7}=x^2[/tex]

[tex]81=x^2[/tex]

Taking square root on both sides, we get

[tex]x=\pm \sqrt{81}[/tex]

[tex]x=\pm 9[/tex]

Side cannot be negative. So, x=9 inches.

Now,

Width = 9 inches

Length = 7(9) = 63 inches

Therefore, the length of the rectangle is 63 inches.

Answer:

The value of m8 is 97°

Step-by-step explanation:

Answer:x=5 or F

Step-by-step explanation:(8x+6)/(5x-2)=2, because it is the midsegment, cross multiply, and you get 2x=10, so x=5