Hi please help!! i will mark as brainliest if i can

Answer:

y-intercept = (0, 8)

x-intercepts = (4, 0) and (-2, 0)

vertex = (1, 9)

5th point = (2, 8)

Step-by-step explanation:

As the coefficient of x² is negative, the curve will be "n" shaped.

y-intercept

crosses the y-axis when x = 0

substitute x = 0 into the function and solve for y:

[tex]\implies y=-(0)^2+(2 \times 0)+8=8[/tex]

Therefore, y-intercept = (0, 8)

x-intercept

crosses the x-axis when y = 0

set the function to zero and solve for x:

[tex]\implies -x^2+2x+8=0[/tex]

[tex]\implies x^2-2x-8=0[/tex]

[tex]\implies (x-4)(x+2)=0[/tex]

[tex]\implies x=4, x=-2[/tex]

Therefore, x-intercepts = (4, 0) and (-2, 0)

vertex

vertex form:  [tex]y=a(x-h)^2 +k[/tex],  where (h, k) is the vertex

expand vertex equation:  [tex]y=ax^2 -2ahx+ah^2 +k[/tex]

compare coefficients with original function: [tex]y=-x^2+2x+8[/tex]

[tex]\implies a=-1, h=1, k=9[/tex]

So vertex = (1, 9)

5th plot point

You can choose any value of x and input it into the equation for y, but for symmetry, I have chosen to find the other value of x (aside x = 0) when y = 8

[tex]\implies -x^2+2x+8=8[/tex]

[tex]\implies -x^2+2x=0[/tex]

[tex]\implies x^2-2x=0[/tex]

[tex]\implies x(x-2)=0[/tex]

[tex]\implies x=0, x=2[/tex]

5th point = (2, 8)

Answer:

  7%

Step-by-step explanation:

[tex]Formula: \frac{Value2-Value1}{Original.Amt(Value1)}*100[/tex]

[tex]\frac{720-670}{670} *100[/tex]

[tex]\frac{50}{670} *100[/tex]

[tex]7.46268656716[/tex] Round to nearest whole  7%

[RevyBreeze]

Answer:

7.463%

Step-by-step explanation:

$720 - $670 = $50

the sales tax price = $50

sale tax in percentage =

[tex] \frac{tax}{computer \: price} \times 100 =[/tex]

[tex] \frac{50}{670} \times 100 = 7.462[/tex]

Answer:

x = 5

Step-by-step explanation:

-10x - 1 = -51

add 1 to each side

-10x = -50

divide each side by -10

x = 5

Step-by-step explanation:

• the original price= 275,

275 → 100 %

i) find the price with the 15 % discount

100% - 15% = 85 %

if, 275 → 100 %

100 % → 275

1% → 275 / 100

85 % → (275/100) * 85

= 233. 75

ii) find the add. 5% of the :

sale price = 233. 75

add. discount = 5%

= 5/ 100 * 233.75

= 11.6875

iii) subract the 5% discount from the sale price.

final price = 233. 75 - 11.6875

= 222. 0625

hope this helps you!

-s.

Answer:

C

[tex] {( \frac{a}{b}) }^{n} = \frac{ {a}^{n} }{ {b}^{n} } \\ so \\ {( \frac{5}{9} )}^{8} = \frac{ {5}^{8} }{ {9}^{8} } [/tex]

Answer:

942m^2

Step-by-step explanation:

to find the answer you do pi * r^2 *h

pi is 3.14 r is 5 and h is 12= 3.14* 5^2 * 12

now you have 78.5*12

now you're left with your answer 942m^2

Answer:

-3

Step-by-step explanation:

4x is the slope and the + or - always is the y intercept. also this would be a linear equation :)

Answer:The solution is in the file below

Step-by-step explanation:

[tex]\boxed{\sf tan\theta=\dfrac{Perpendicular}{Base}}[/tex]

Now

[tex]\\ \tt\hookrightarrow tanx=\dfrac{27.8}{19.6}[/tex]

[tex]\\ \tt\hookrightarrow tanx=\dfrac{13.9}{9.8}[/tex]

[tex]\\ \tt\hookrightarrow tanx=1.418[/tex]

[tex]\\ \tt\hookrightarrow \underline{\boxed{\bf tanx=1.42}}[/tex]

Value of x

[tex]\\ \tt\hookrightarrow x=tan^{-1}(1.42)[/tex]

[tex]\\ \tt\hookrightarrow x=54.8°[/tex]

Hope It helps

Answer:

7%

Explanation:

cost of 10 bag is rs 5000.

then cost of one bag is 500.

he sold 7 bag for rs550 each then total =550×7

= 3850

again, he sold rest 3bag at cost price =500 ×3

=1500

then ,. profit percentage; s.p- c.p/5000×100

350/5000×100

= 7%

Answer:

the answer is c, (-3,-4)

Step-by-step explanation:

the rule for a 180 degree rotation is: (x,y) ---> (-x,-y)

Hope this helps! :)

Answer:x2 355b.  Hhgguyuy

Step-by-step explanation:

Answer:

x = 130°

y = 50°

Step-by-step explanation:

x = 130° (Exterior alternate angles)

x + y = 180° (Angles in linear pair)

y = 180° - x

y = 180°- 130°

y = 50°

The solution to the problem in the figure attached in the question is: x = 130°, y = 50°

Alternate angles are angles that are formed in a situation whereby a line intersects two other lines, which lie on opposite sides of a transverse line and on contrasting proximate sides of the other lines.

From the given figure:

Angle x is an alternate angle to angle 130°.

Thus, x = 130°

Using the sum of angles on a straight line:

x + y = 180°

130° + y = 180°

y = 180° - 130°

y = 50°

Learn more about alternate angles here:

https://brainly.com/question/26167358

Answer:

3 moths and 10 days

Step-by-step explanation:

on each day she gets 1$ that means

1 month = 30 days

e.g. 3 6 9   30 60 90

means 90 days if we add also 1 month it will be 120 days

so 90 +  10 = 100

thats why 3 months and 10 day :)

Answer:

90/100×30=27

27 caramel brownies

Answer:

1.75h + 5 ≤ 10.25

number of hours she can rent is a maximum of 3

Step-by-step explanation:

h = hours bike is rented

1.75h + 5 ≤ 10.25

subtract 5 from each side:

1.75h ≤ 5.25

divide each side by 1.75:

h ≤ 3

Answer:

ok so the sale ticket cost 54 so we want to find what the regurler one cost so lets just make a algreva equation

0.9x=54

divide by 0.9

54 divide by 0.9=60

so a regurer ticket cost 60

54=0.9r

Hope This Helps!!!

Answer:

70

Step-by-step explanation:

First, set up the ratio of c:t, which is 12:8. Then set up your new ratio of c:t, which is 105:?. The way I find the easiest is to divide 105 by 12, which is 8.75, then multiply that by 8, which is 70. To check if it's right, just divide 12 by 8, and 105 by 70, and if they're the same number, you've got it right.

Ps. I'm guessing you meant to ask the minimum number of trucks, not cars.

Answer:

Measure C, the Sacramento Community Stabilization and Fair Rent Charter Amendment is on the November ballot for the city of Sacramento after a lengthy court battle. The measure is written to supersede the Sacramento Tenant Protection Act, which was passed in 2019. Here are the results for Measure C as they come in:

Step-by-step explanation:

The total cost of the two shirt Maggie will pay after including the sales tax is $18.105.

The cost price per unit is the amount of money required to buy one unit of a brand or goods.

To find the cost price per unit, divide the total amount of cost of the goods to the total number of goods.

The cost of one shirt bought by the Maggie is $8. 50 each. Thus, the cost of the 2 shirts is,

[tex]C=2\times8.50\\C=17[/tex]

Thus, the total cost of the two shirts is $17.

Now, there is a 6. 5% sales tax on the selling price. Thus, the cost of the 2 shirts after the sales tax is,

[tex]C=17+17\dfrac{6.5}{100}\\C=17+1.105\\C=18.105[/tex]

Hence, the total cost of the two shirt Maggie will pay after including the sales tax is $18.105.

Learn more about the cost price per unit here;

https://brainly.com/question/18628158

Answer:

$18.11

Step-by-step explanation:

I took the test on k-12

Answer:

5

Step-by-step explanation:

0(0×2 + 0 + 1) + 5

0(0+0+1)+5

0 + 0 + 0 +5

= 5

Answer:

-15x^5 + 26x^4 - 12x^3 + 35x^2 - 33x - 3

Step-by-step explanation:

(5x^3 - 2x^2 + 3x - 8) + (-3x^2 + 4x + 1)

do foil but with extra terms

-15x^5 + 20x^4 + 5x^3

+6x^4 - 8x^3 - 2x^2

-9x^3 + 12x^2 + 3x

+ 24x^2 - 32x - 8

combine like terms

(-15x^5 + 26x^4 - 12x^3 + 34x^2 - 29x - 8) - (4x - x^2 + 5) or -4x + x^2 - 5

-15x^5 + 26x^4 - 12x^3 + 35x^2 - 33x - 3

Answer:

[tex]x^3-4x^2+3x-12[/tex]

Step-by-step explanation:

[tex](5x^3-2x^2+3x-8)-(3x^2-4x-1)\\\implies 5x^3-2x^2+3x-8-3x^2+4x+1\\\implies 5x^3-5x^2+7x-7[/tex]

[tex](x^3-5x^2+7x-7)-(4x-x^2+5)\\\implies x^3-5x^2+7x-7-4x+x^2-5\\\implies x^3-4x^2+3x-12[/tex]

Answer: 0.16min/m

Step-by-step explanation:

The depth of the aquarium is 25 meters

Time is take for water to reach the bottom = 4 minutes per 25 meters

= 4/25 min/m

= 0.16 min/m

Answer:

24

Step-by-step explanation:

64 * (5/8) = 40 lemon and caramel

64- 40 = 24 carrot cupcakes

Answer:

Exact Form:

2[tex]\sqrt[/tex]13

Decimal Form:

7.21

-----------------

Have a great day! :D

Dime is one-tenth of a dollar, while nickle is one-twentieth part of a dollar. Jaime has got 22 dimes and 4 nickle coin in this case.

You can represent the unknown amounts by the use of variables. Follow whatever the description is and convert it one by one mathematically. For example if it is asked to increase some item by 4 , then you can add 4 in that item to increase it by 4. If something is for example, doubled, then you can multiply that thing by 2 and so on methods can be used to convert description to mathematical expressions.

For the given case, since number of dimes is given in terms of number of nickels, so lets assume that:

Since 1 nickle's cost = $0.05,

thus, x nickles' cost = [tex]x \times 0.05[/tex] (in dollars)

And as 1 dime's cost = $0.10,

thus, 14 + x dimes' cost = [tex]0.10 \times (14 + x)[/tex] (in dollars)

Total amount Jamie have = Amount by nickles + Amount by dimes

Total amount Jamie have = [tex]0.10(14+x) + 0.05x[/tex]  (in dollars) = $2.60 (as given in the problem)

Thus, we get:

[tex]0.10 (14+x) + 0.05x = 2.60\\1.4 + 0.10x + 0.05x = 2.60\\\\\text{Subtracting 1.4 from both the sides}\\\\0.15x = 1.2\\\text{Dividing both the sides by 0.15}\\\\\dfrac{0.15x}{0.15} = \dfrac{1.2}{0.15}\\\\x = 8\\[/tex]

Thus, Jamie got  x = 8 nickles.

And number of dimes he got = x + 14 = 8 + 14 = 22

Thus,  Jaime has got 22 dimes and 4 nickle coin in this case.

Learn more about forming equations here:

https://brainly.com/question/11938672

Answer:

trangle?

Step-by-step explanation:

The answer is in the image