You are training your dog to catch a frisbee. You are playing in a large field, and you are standing next to your dog when you throw the frisbee. If the path of the frisbee is y = –x2 + 8x + 7 and the path of the dog is modeled by y = 2x + 7, will the dog catch the frisbee? If so, what are the coordinates of the point or points where they meet?

Yes, they intersect at the coordinates (0, 7) and (3, 13)
Yes, they intersect at the coordinates (0, 7) and (6, 19)
Yes, they intersect at the coordinates (0, 7) and (7, 21)
No, the paths do not cross

Answers

Answer 1

Answer:

Yes, they intersect at the coordinates (0, 7) and (6, 19)

Step-by-step explanation:

[tex]y = -x^2 + 8x + 7\\y = 2x + 7\\y = y\\-x^2 + 8x + 7 = 2x + 7\\-x^2+ 6x = 0\\x^2 - 6x = 0\\x(x - 6) = 0\\x = 0\ \ \text{or}\ \ x = 6\\[/tex]

[tex]\text{if}\ x = 0\\y = 2x + 7\\y = 2(0) + 7 = 7\\\text{coordinate is:}\ (0, 7)[/tex]

[tex]\text{if}\ x = 6\\y = 2x + 7\\y = 2(6) + 7 = 12 + 7 = 19\\\text{coordinate is:}\ (6, 19)[/tex]

Answer 2

Answer:

B. Yes, they intersect at the coordinates (0, 7) and (6, 19)

Step-by-step explanation:

I took the Algebra exam


Related Questions


Mr. Davis invested $8,000 in a savings account. The bank pays 4.5% annual compound
interest. Mr. Davis never withdrew nor deposited in the savings account. Which of the
following exponential graphs represents the money y that Mr. Davis has after x years

Answers

Answer:

Compound interest formula

[tex]\sf A=P(1+\frac{r}{n})^{nt}[/tex]

where:

A = final amountP = principalr = interest rate (in decimal form)n = number of times interest applied per time periodt = number of times periods elapsed

Given:

A = yP = $8,000r = 4.5% = 0.045n = 1t = x

Substitute given values into the equation:

[tex]\implies y=8000(1+\frac{0.045}{1})^x[/tex]

[tex]\implies y=8000(1.045)^x[/tex]

So the graph will have a y-intercept of (0, 8000)

What is the domain and range!!
PLEASE HELP I WILL BE GIVING OUT MORE POINTD AND MARKED BRAINIST ONLY IF YOU ARE RIGHT THO I DO CHECK !!

Answers

Recall that domain is in x axis

Thus from the graph we can see,

the domain is  x ≥ -1   and x ≤ 3

Thus final domain: -1 ≤ x ≤ 3

Answer:

[tex]\textsf{domain:}\quad-1\leq x\leq 3[/tex]

[tex]\textsf{range:}\quad\dfrac{16}{3}\leq y\leq 27[/tex]

Step-by-step explanation:

Information

Domain of a function: set of all possible input values (x-values)

Range of a function: set of all possible output values (y-values)

Closed circle:  less than or equal to and greater than or equal to (≤ or ≥).

Open circle: less than or greater than (< or >)

Domain

There is a closed dot at x = -1 and x = 3

Therefore, the domain is -1 ≤ x ≤ 3

Range

To calculate the exact range, we need to figure out the equation of the function (as it is difficult to read the exact value of y at x = -1).

From inspection of the graph, we can identify the following ordered pairs:

(1, 12)  (2, 18)  (3, 27)

General form of an exponential equation: [tex]y=ab^x[/tex]

Inputting the first two ordered pairs into the exponential equation:

[tex]\implies ab^1=12[/tex]

[tex]\implies ab^2=18[/tex]

Dividing the equations to find b:
[tex]\implies \dfrac{ab^2}{ab^1}=\dfrac{18}{12}[/tex]

[tex]\implies b=\dfrac32[/tex]

Inputting b into the first equation to find a:

[tex]\implies \dfrac32a=12[/tex]

[tex]\implies a=8[/tex]

Therefore, the equation of the function is: [tex]y=8\left(\dfrac32\right)^x[/tex]

Input  [tex]x = -1[/tex]  into the equation to find y:

[tex]\implies 8\left(\dfrac32\right)^{-1}=\dfrac{16}{3}[/tex]

Therefore, the range is [tex]\dfrac{16}{3}\leq y\leq 27[/tex]

Help help help help math math

Answers

You cross multiple. Remember 5 = 5/1

So x/2 = 5/1

Cross multiple x is linked with 1 and 2 is lined with 5.

So x(1) = 5(2)

X = 10

Counting techniques

1. A high school basketball has 15 players. In how many different ways can the coach choose the starting line-up?

Answers

Answer:

How many players in the starting line up ???

If 1 then its 15 ways

If 2 then its 15 × 14 = ___

If 3 then its 15 × 14 × 13 = ___

hey does anyone know the answer to this? please. i really don’t know what i’m doing and completely depend on the internet for answers. if yk an app or website that helps with these type of problems lmk

Answers

Answer:

I believe the answer is #3 c=kv because you need to find c and it varies based on k and v.

Step-by-step explanation:

*NEED HELP I WILL GIVE BRAINLIEST FOR BEST ANSWER PLEASE HELP ME*
A cylinder has a height of 9 meters and a diameter of 36 meters. What is its volume? Use ​ ≈ 3.14 and round your answer to the nearest hundredth.

______cubic meters

Answers

Answer:

0.15 cubic meters

Step-by-step explanation:

Formula volume = π x radius² x height

Answer

πr2h

Step-by-step explanation:

What do 12y and 8y represent?  You can look up the formula for the volume of a cylinder pir^2h and plug in your dimensions.

The ceiling of Katie's living room is a square that is 15 ft long on each side. To decorate for a party, she plans to hang crepe paper around the perimeter of the ceiling and then from each corner to the opposite corner. Katie can buy rolls that each contain 20 ft of crepe paper. What is the minimum number of rolls she should buy? ( Show Your Work). Will Mark Brainliest if answered correctly and please do not reshare another students answer from brainly or any other websites to answer my question or you'll be reported. Thank you.​

Answers

Answer:

The answer is 70

Step-by-step explanation

Add 15 by 15 for each side then add 20 by 20 for each other side


WILL GIVE BRANLEST IF CORRECT



Which could be the dimensions of a rectangular prism whose surface area is greater than 140 square feet? SELECT 3 OPTIONS

A.) 6 feet by 2 feet by 3 feet
B.) 6 feet by 5 feet by 4 feet
C.) 0 7 feet by 6 feet by 4 feet
D.) 8 feet by 3 feet by 7 feet
E.) O 8 feet by 4 feet by 3 feet

Answers

Answer:

B   or  C

Step-by-step explanation:

B area =  2 ( 6 x5 + 5 x 4  + 4 x 6) = 148 square feet

C area = 2 ( 8x3 + 3x7 + 7x8) = 202 sq ft

The rectangle of the rectangle is shown 44m squared. Find out the missing length of x

Answers

Answer:

12 m

Step-by-step explanation:

3 ⅔

= 3 + 2/3

= 9/3 + 2/3    { LCM = 3 }

= ( 9 + 2 ) / 3

= 11/3

In the diagram,

Length ( l )= x m

Breadth ( b ) = 3 ⅔ m = 11/3 m

Given that area of the rectangle = 44 m²

Formula : -

Area of the rectangle = lb

lb = 44

x * 11/3 = 44

x = ( 44 * 3 ) / 11

x = 4 * 3

x = 12 m

Therefore,

the missing length = 12 m

Can someone help me please

Answers

Answer:

59.55555555555556

Step-by-step explanation:

I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER

Answers

Answer:

x=11 and t=6

Step-by-step explanation:

If ABC and KLM are approximately equal, 44 degrees=4x and 18 inches=3t.

44/4=11

18/3=6

Integrate the expression below

Answers

[tex]\displaystyle\int~4t(5t^2-1)^6 dt \\\\[-0.35em] ~\dotfill\\\\ u=5t^2-1\implies \cfrac{du}{dt}=10t~\hspace{10em} \cfrac{du}{10t}=dt \\\\[-0.35em] ~\dotfill\\\\ \displaystyle\int~4t~u^6\cdot \cfrac{du}{10t}\implies \int~\cfrac{4t~u^6}{10t}\cdot du\implies \int~\cfrac{2~u^6}{5}du\implies \cfrac{2}{5}\int~u^6\cdot du \\\\\\ \cfrac{2}{5}\cdot \cfrac{u^7}{7}\implies \cfrac{2(5t^2-1)^7}{35}[/tex]

I neef way more help! Only a few more questions then you will have helped me pass my class!

Answers

Answer:

[tex]\boxed{\sf{705.3cm^3}}[/tex]

Step-by-step explanation:

To solve this problem, you need to determine the volume of the prism.

Volume of the prism formula:

[tex]\Longrightarrow: \sf{V=L*W*H}[/tex]

L (length): 8 cmW (width): 15.2 cmH (height): 5.8 cm

Multiply them all together.

[tex]\sf{8*15.2*5.8=\boxed{\sf{705.3}}[/tex]

Therefore, the volume of the prism is "D. 705.3 cm³", which is our answer.

I hope this helps. Let me know if you have any questions.

Answer:

Option D, [tex]705.3\ cm^3[/tex]

Step-by-step explanation:

Step 1:  Determine the volume of a rectangular prism

[tex]V = l * w * h[/tex]

[tex]V = (15.2\ cm) * (8\ cm) * (5.8\ cm)[/tex]

[tex]V = 705.28\ cm^3[/tex]

Answer:  Option D, [tex]705.3\ cm^3[/tex]

Find two pairs of prime numbers less than 20 that differ by 4

Answers

Answer:

3 and 7,

7 and 11,

13 and 17

Step-by-step explanation:

Prime numbers have exactly two factors, the number itself and 1. This just means that nothing "goes into" these numbers. Example: 7. 7 is a prime number; the only number that goes into 7 is 7 (and 1)

First, find all the prime numbers that are less than 20:

2, 3, 5, 7, 11, 13, 17, 19

Next find the pairs that are 4 units apart. 3 and 7 works.

7 - 3 is 4

Also, 13 and 17 works, and 7 and 11.

Help help math math math

Answers

The correct answer is Y= -21

[tex]y=-6x+12\\\\\text{When}~ x = -1\\\\y=-6(-1)+12 = 6+12 = 18[/tex]

Beau's suitcase weighs 40 pounds. which is NOT a reasonable prediction for the number of items he packed?
A. 39
B.45
C. 31
D. 42

Answers

Answer:

B

Step-by-step explanation:

45 items is not a reasonable number, as the suitcase itself probably weighs about 20 pounds, and the likeliness of each item weighing about 1/2 a pound is unreasonable.

Answer:

The answer is 31.

Step-by-step explanation:

Since Beau's suitcase weighs 40 pounds he packed at least 35 items. Anything less than 35 items couldn't be possible.

See attachment. I got it right on my quiz:)

Find the present value of the following future amount.

​$2000 at ​12% compounded annually for 25 years


The present value is ​$ _____

(Round to the nearest cent as​ needed.)

Answers

Answer:

$ 39,576.93

Step-by-step explanation:

The number of boys in a school is 120. If the ratio of boys to girls is 2:3, find the total number of students in the school.​

Answers

Answer:

300

Step-by-step explanation:

For every two boys, there are three girls, so divide 120 by 2 = 60

Multiply 60 by 3 = 180

Total number of students in school: 120 + 180 = 300

Our competitor struggled to sell 350 products & we sold 46% more than they did

Answers

Answer:

The quantity we sold more than the competitors is 161.

What are percentages?

Percentage can be described as a fraction out of an amount that is usually expressed as a number out of hundred.

How much more did we sell?

Quantity sold more = percentage sold more x number sold by competitors

46% x 350

0.46 x 350=161.

if the Vertical angle of an isosceles triangle is equal to the sum of the base angle find the size of each angle

Answers

Answer:

I try my best to give you answer

What is the slope of the line described by the equation below?
y-5= -3(x - 17)
hos
A. -3
B. -5
C. 3
O D. 5
SUBMIT

Answers

Answer:

  A.  -3

Step-by-step explanation:

We recognize the given equation as being in point-slope form:

  y -k = m(x -h) . . . . . . line with slope m through point (h, k)

__

Comparing that to the given equation ...

  y -5 = -3(x -17)

we see that m = -3.

The slope of the line is -3.

Rosie went on a hiking trip. The first day she walked 18 kilometers. Each day since she walked 90% of what she walked the day before. What is the total distance Rosie has traveled by the end of the 10th day?

Answers

Answer:

Rosie has walked 163.8 kilometers by the 10th day,

Step-by-step explanation:

We know that the first day is 18 kilometers.

90% = 0.9

0.9 x 18 = 16.2

There are 9 more days

16.2 x 9 = 145.8

Now we add the first day

145.8 + 18= 163.8

Select the correct answer. If d=8, what is the value of the expression 4+d/2 ? A.4 B.6 C.8 D.12 E.14

Answers

Answer:

C

Step-by-step explanation:

4+(8/2)

Bidmas

4+4 = 8

Answer is C

Ask me for any questinosss

And brainliest would be appreciated :)

Answer:

d=8

8/2

4

4+4=8

the answer is (c) 8

Can you find the area and explain how you got the area

Answers

Answer:

102cm^2 - hope this helps

Step-by-step explanation:

find the area of the rectangle first in the middle

which equals 6 x 13 = 78cm^2

then find the traingles on the side

(6 x 4) / 2 = 12

there are 2 traingles so it would be 12 + 12 = 24

so all together the area would be 78 + 24 = 102cm ^2

A number is selected at random from the set (2, 3, 4, . 10}. Which event, by definition, covers the entire sample space of this experiment?
OA. The number Is greater than 2.
O B. The number Is not divisible by 5.
O C. The number Is even or less than 12.
O D. The number is nelther prime nor composite.
O E. The square root of the number Is less than 3.
Reset
Next
s reserved.

Answers

This is the list of choices that accompany that question:

A) The number is greater than 2. ---> FALSE BECAUSE IT INCLUDES GREATER THAN 10, AND 10 IS THE LAST NUMBER OF THE SET.

B) The number is not divisible by 5. ----> FALSE BECAUSE 10 IS DIVISIBLE BY 5.

C) The number is even or less than 12. ---> THIS CAN BE RIGHT BECAUSE 1) ALL THE NUMBERS SHOWN ARE EITHER EVEN OR LESS THAN 12 AND THE DEFINITION, AND 2) THE DEFINITION DOES NOT INCLUDE A NUMBER OUT OF THE NUMBERS SHOWN.

D) The number is neither prime nor composite. ---> FALSE BECAUSE ANY NUMBER IS EITHER PRIME OR COMPOSITE.

E) The square root of the number is less than 3. ---> FALSE BECAUSE THE SQUARE ROOT OF 10 IS GREATER THAN 2.

Find the point on the line -5x + 7y - 4 = 0 which is closest to the point (2,3).

Answers

Answer:

  (x, y) = (2 35/74, 2 25/74)

Step-by-step explanation:

The closest point on the line to the given point will be the point of intersection of the given line and a perpendicular through the given point.

__

A line perpendicular to ax+by+c=0 that goes through point (h, k) can be written as ...

  b(x-h) -a(y-k) = 0

For the given line and point, the perpendicular line will be ...

  7(x -2) +5(y -3) = 0

  7x +5y -29 = 0

Using the cross-multiplication method, we can find the solutions to the system of equations consisting of these two lines. It will be ...

-5x +7y -4 = 07x +5y -29 = 0

  Δ = (-5)(5) -(7)(7) = -74

  Δx = (7)(-29) -(5)(-4) = -183

  Δy = (-4)(7) -(-29)(-5) = -173

  x = Δx/Δ = -183/-74 = 2 35/74 ≈ 2.4730

  y = Δy/Δ = -173/-74 = 2 25/74 ≈ 2.3378

__

For more on the cross multiplication method, you can read ...

https://brainly.com/question/26397343

PLEASE HELP PLEASE HELP PLEASE

Answers

Answer:

I think it's D.

Step-by-step explanation:

The grid is divided into 100 smaller squares, with 10 squares in each row. 25 squares out of 100 squares are shaded. 25% of the grid is shaded and 25% belongs to 20% so the grid that's 2/5 shaded it's D.

The answer would be D. Grid D

A conveyor belt drops gravel to create a pile in the shape of a right circular cone. The cone is formed from 3,200 ft^3 of gravel. If the height of the cone is 24ft, what is the radius, in feet, of the base cone? Round your answer to the nearest tenth of a foot.

Answers

Answer:

11.3 ft

Step-by-step explanation:

[tex]V_{gravel}=3,200\: ft^3\\\\height \:(h) =24\: ft\\\\ To \: find:\: radius\:(r)[/tex]

Since, gravel is in the shape of right circular cone.

[tex]\implies V_{gravel}= \frac{1}{3}\pi r^2 h\\\\\implies 3,200= \frac{1}{3}(3.14) r^2 (24)\\\\\implies r^2=\frac{3,200\times 3}{3.14\times 24}\\\\\implies r^2=\frac{9,600}{75.36}\\\\\implies r^2=127.388535\\\\\implies r=\pm\sqrt{127.388535}\\\\\implies r=\pm 11.286653\\radius\: can't\: be\: negative\\\\\implies r=11.286653\\\\\implies r \approx 11.3 \: ft[/tex]

Which set of data is represented by the box plot?​

Answers

Answer:

Step-by-step explanation:

It looks like the solution is the first set of data

{1, 4, 6, 10, 12, 14, 19, 20, 25 }

because: median is 12, Q1 is 6, Q3 is 19, yet the range is from 1 to 25 while the range of the box and whisker plot is 1 to 24.

So theoretically none of those sets represents the box plot.

What is the complex conjugate of 12i ?

Answers

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

The conjugate of given complex number is ~

[tex]\qquad \tt \dashrightarrow \: \overline{z} = - 12i[/tex]

Conjugate of a complex number is the same number with its imaginary part having opposite sign.

Eg. if z = a + i b

Then it's Conjugate = a - i b

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