The stone's height (in meters above the water), I seconds after Ricardo threw it, is modeled by
w(x) = -5(x – 8)(x +4)
How many seconds after being thrown will the stone reach its maximum height?
seconds

Answers

Answer 1

Answer: 2 seconds

-5(x-8) (x+4)

x-8=0 or x+4=0

x=8. or x=-4

Now we now the 2 x.

8+ -4/2 = 2 seconds


Related Questions

WILL GIVE BRAINLIEST!

PRECALCULUS

Answers

Answer: heck no i dont knwo dis lmxo

Step-by-step explanation:

please help me out thank you so much :)
7+7

Answers

7+7=14

Hope this helps!! <3

Answer:

14

Step-by-step explanation:

7+7

Calculate.

7+7 = 14

Ben is starting a business to wash his neighbors cars. He will earn $9.50 per car he washes, plus an additional $50 his mom gave him as a bonus. If 'y' represents total profit, and 'x' represents the cars he washes, what equation can model Ben's profit per car he washes?
A. y = 50x + 9.50
B. y = 9.50x + 50
C. y = 59.50
D. y=9.50% - 50​

Answers

Answer:

its b

Step-by-step explanation:

y being the total equals 9.50 times x beacause is how many cars he washed and the plus 50 is the money his mom gave him

Answer:

b

Step-by-step explanation:

Answer the following question from the picture:​

Answers

Answer:

x°= 67°. it's from 180-130 then it's added with 63 then again substrated from 180.

Y°= 63°. y° same as 63° below.

z°= 32°. 85 is added with y° which is 148 and it's substrate from 180 which is 32°.

Select the equivalent expression.

Answers

Answer:

The answer is B

Step-by-step explanation:

This is because when you distribute the -4 to 9^6 and 7^-24 you will get 9^-24 and 7^36. Then, you can move the 7^-24 to the denominator because of the negative exponent rule.

PS: ^ means to the power of


The side of a square is 15 millimeters. What is the perimeter?

Answers

Answer:

60 millimeters

Step-by-step explanation:

15(4)= 60

Answer:

15+15+15+15=60

Step-by-step explanation:

another way and it's quicker is 15*4

12
11
84
12
84
Scale Factor=
x =

Answers

X= 7:1 ! Your welcome !

Bruce owns a business that produces widgets. He must bring in more in revenue than he pays out in costs in order to make a profit. • It costs $10 in labor and materials to make each of his widgets. • His rent each month for his factory is $4,000. He sells each widget for $25. What is the smallest number of widgets Bruce needs to sell each month to make a profit?

Answers

Answer:

Bruce needs to sell 267 widgets each month to make a profit.

Step-by-step explanation:

From the information given, you can write that the cost of the monthly rent plus the cost  in labor and materials to make each widget for the number of widgets is equal to the amount of sales:

10x +4000 = 25x

Now, you can solve for x:

4000 =25x-10x

4000=15x

x= 266.67→267

According to this, the answer is that Bruce needs to sell 267 widgets each month to make a profit.

6 +(-1)=math please help ​

Answers

Answer:

5

Step-by-step explanation:

[tex]Steps\\\\6+\left(-1\right)\\\\\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a\\=6-1\\\\\mathrm{Subtract\:the\:numbers:}\:6-1=5\\=5[/tex]

What is the value of the expression below if x = 4 and y = 3

Answers

Answer:99

Step-by-step explanation:

Step-by-step explanation:

Find the distance between the two points rounding to the nearest tenth (if necessary).
(-8,1) and (-4,-5)

Answers

-3/2, because -5 -1 =-6 and -4+8 is 4 so it’s-6/4 which simplified is -3/2

Write the equation of the piecewise function. Algebra 2

Answers

Answer:

  C. [tex]y=\begin{cases}2-x&x<0\\5-3x&x\ge 0\end{cases}[/tex]

  D. [tex]y=\begin{cases}-2&x<-3\\4&x>-3\end{cases}[/tex]

Step-by-step explanation:

C.  The line to the left of x=0 has a slope of -1 and a y-intercept of 2. That portion of the function does not include x=0. The line to the right of x=0 has a slope of -3 and a y-intercept of 5. That portion of the function includes the case x=0.

  [tex]\boxed{y=\begin{cases}2-x&x<0\\5-3x&x\ge 0\end{cases}}[/tex]

__

D. The line to the left of x=-3 is y=-2; the line to the right of there is y=4. The function is not defined at x=-3.

  [tex]\boxed{y=\begin{cases}-2&x<-3\\4&x>-3\end{cases}}[/tex]

YYYYYYYYYYYYYYYYYYYYYYYYYYYY HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

6.723=6.7, 6.538=6.5, 6.647=6.6, 6.49=6.5, 6.687=6.7, 6.56=6.6

Step-by-step explanation:

This should be correct

Answer:

Step-by-step explanation:

Here's the general rule for rounding: If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up. Example: 38 rounded to the nearest ten is 40. If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down.

Which is the larger value below?
A) 9.54 x 10-3
B) 6.54 x 10-4

Answers

Answer:

A

Step-by-step explanation:

a

10-3=7 , so,

9.54 * 7 = 92.4

b

10-4=6

6.54*10 = 61.4

Answer:

A

Step-by-step explanation:

because you need to do Multiplication after subtraction

When an angle is reflected across a line, what happens to its measure?

A It remains the same

B It doubles

C It halves

D Not enough information

Answers

D) Not enough information

Fiona was thinking of a number. Fiona adds 18 to it, then doubles it and gets an answer of 40.1. What was the original number?

Answers

Answer:

2.05,i need 20 characters so here lol

on a cm grid, point p has coordinates (3,-1) and point q has coordinates (-5,6) calculate the shortest distance between p and q give answer t 1 decimal place
17caslan19 avatar
the base of the tringle would be 8 and the height would be 7 use pythagorus

Answers

Answer:

≈ 10.6 units

Step-by-step explanation:

Calculate the distance d using the distance formula

d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]

with (x₁, y₁ ) = p(3, - 1) and (x₂, y₂ ) = q(- 5, 6)

d = [tex]\sqrt{(-5-3)^2+(6+1)^2}[/tex]

   = [tex]\sqrt{(-8)^2+ 7^2}[/tex]

    = [tex]\sqrt{64+49}[/tex]

     = [tex]\sqrt{113}[/tex] ≈ 10.6 ( to 1 dec. place )

what is the slope of the line 3y-x=-6

Answers

Slope of the line should be 1/3

how do i solve
3(5x + 2) = 2(3-6)

Answers

3(5x+2)=2(3-6)
15x+6=2.-3
15x+6=-6
15x+6+6=0
15x+12=0
15x=-12
x=-12/15

Step-by-step explanation:

Hey there! Down here :D

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

[tex]15x + 6 = 2( - 3)[/tex]

[tex]15x = - 12[/tex]

[tex]x = \frac{ - 12}{15} [/tex]

is the required answer.

Hope It helps :)

A number to the 8th power divided by the same number to the 6th power equals 64. What is the number?



The number is

Answers

Answer:

4

Step-by-step explanation:

Let the number = X

You have X^8 / X^5

When dividing two numbers with powers, Simplify the expression by subtracting the powers.

8-5=3

so X^8 / X^5 becomes x^3

Now you have x^3 = 64

To find x take the cubic root of 64:

X = ∛64

X = 4

The number is 4

what realization did you have with this lesson

Answers

Answer:

no question..............

What is the lesson?....

what is 1 and 7/8 + 1/9?

A. 0
B. 1
C. 2
D. 2 and 1/2.

Answers

Answer:

D. 2 and 1/2

Hope it helps! Please mark Brainliest!

Answer:

1 71/72

Step-by-step explanation:

1 7/8 + 1/9 = 1 + 7/8 * 9/9 + 1/9 * 8/8 = 1 + 63/72 + 8/72 = 1 + 71/72 = 1 71/72

The two triangles in the graphic below can be proven congruent by:

Answers

Answer:

AAS

Step-by-step explanation:

Identify the like terms:
3t2 - 2t2 + 6 +12

Answers

Answer:

3t2 and -2t2. and 6 and 12

To measure a stone face carved on the side of a​ mountain, two sightings 700 feet from the base of the mountain are taken. If the angle of elevation to the bottom of the face is 35 and the angle of elevation to the top is 38 ​, what is the height of the stone​ face?

Answers

Answer:

75feet

Step-by-step explanation:

To measure a stone face carved on the side of a​ mountain, two sightings 700 feet from the base of the mountain are taken. If the angle of elevation to the bottom of the face is 35 and the angle of elevation to the top is 38 ​, what is the height of the stone​ face?

Iet us say we have two right triangles. With a base of 700. The first has angle of 35o and the other has an angle of 38degree

Then we need the Height

From trigonometry

Tan = opposite/adjacent.

In this case the adjacent is 800

Tan 35 = 0.7002

Tan 38 = 0.781

Find the slope of each line.
m
(Use the / to write your answer as a fraction. If your answer is a negative fraction, put the negative first before the fraction. For example, type
-4/7 instead of 41.7. Keep your answer as a fraction. Do not change it to a decimal)

Answers

-1/3 is the slope. I’m assuming that each tick is equal to 1, so if we plug the values we get (-2,4) and (4,2). To find the slope we use the rise over run method. I’m using (-2,4) as my first point and (4,2) as my second point. This equals -1/3. Hope this helped :D

Which statement that describes show that figure a is congruent to figure b

Answers

Answer:

E.

Step-by-step explanation:

Translation: slide of the shape or figure, it does NOT change its shape, size, and form, count how many units the shape moves.

Reflection: flip of the shape, does NOT change its shape, size, and form, either can be flipped or reflected over the x or y axis.

Rotation: turn of the shape, does NOT change its shape, size, and form, either can be rotated counter clock wise left, (opposite of a clock direction), or clockwise, the direction a clock moves right. It can also be rotated 90° (1 turn), 180° (2 turns), 270° (3 turns) or 360° (4 turns). In highschool, you will get introduced to more degrees of rotation, this is just middle school level.

HELP!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

79

Step-by-step explanation:

m<1 = 90 -38 = 52

m<3 = 90 - 52 = 38\

m<2 = 180-38-63 = 79

Answer:

Step-by-step explanation:

<1 + <3 = 90                 Parallel lines produce interior angles that add to to 90

<1 + 38 = 90                 Substitution

<1 = 90 - 38                  52

<3 = 90 - 52

<3 = 38

38 + 63 + <2 = 180      Sum of angles in a triangle always = 180

101 + <2 = 180

<2 = 79

ANSWER ONE AND TWO ILL GIVE YOU BRAINLIST!!!

Answers

Step-by-step explanation:

1.

Radius of of the table cloth = diameter/2 = 30/2 = 15 inches

Area of the table cloth

[tex] A = \pi r^2 \\\\

= \pi (30)^2 \\\\

= \pi\times 900\\\\

= 900\pi [/tex]

Area of the table cloth [tex] = 900\pi\: inches^2 [/tex]

2.

Radius of circular garden = 3 m

Area of circular garden

[tex] A = \pi r^2 \\\\

= \pi (3)^2 \\\\

=\pi\times 9\\\\

=9\pi [/tex]

Area of circular garden [tex] =9\pi\: m^2 [/tex]

12. Given y-3 = (x + 1), convert it to standard form.​

Answers


-y + (x + 1) = -3 would be the answer in standard form.

Answer:

x - y = -4

Step-by-step explanation:

Standard Form: Ax + By = C

A is non-negative

Step 1: Define equation

y - 3 = (x + 1)

Step 2: Solve to Standard Form

Add 3 to both sides: y = x + 4Subtract x on both sides: y - x = 4Factor out negative: -(x - y) = 4Divide by -1 on both sides: x - y = -4
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