PLEASE HELP DUE SOON

Answer:

7x-1+2x-1=7

9x-2=7

9x=7+2

9x=9

÷9

x=1

Answer:

69

Step-by-step explanation:

Answer:

d=120-75

Step-by-step explanation:

so that means d=45

Answer:

t = 1 s to reach its maximum height.

Step-by-step explanation:

The function that represents the height of the rocket after s seconds is given by :

[tex]h(s)=-3s^2+6s+45[/tex] ...(1)

For maximum height,

[tex]h'(s)=0\\\\-6s+6=0\\\\s=1[/tex]

It is the time the rocket will take. So, the ball will take 1 second to reach its maximum height.

Answer:

square the number in the middle to solve

it's easier than calculating the roots

1) true

2) true

3) false (obviously)

4) false (3² = 9, not less than 9)

5) true

6) true

Answer:

Step-by-step explanation:

True 2.23<2.3<2.44

True 2.23<2.4<2.44

True

False 2.82<3<3

True 2.82<2.9<3

False 2<4.5<2.23

Answer:

53.525kmh^-1

Step-by-step explanation:

average speed=total distance/total time taken

=428.5km/8h

=53.525kmh^-1

Answer:

Step-by-step explanation:

here x1=0   y1=-2   x2=-6    y2=4

slope=y2-y1/x2-x1

=4-(-2)/-6-0

=4+2/-6

=6/-6

=-1

therefore slope=-1.

Answer:

Its D

Step-by-step explanation:

Answer: 278.18

sorry if it's wrong

Step-by-step explanation: if you divide 255 by 11 you get 23.18181818181

so if you simplify you get 23.18 so that is the tax plus the original payment which is 278.18

Answer: The correct answer is $566.10

Step-by-step explanation: IXL

Answer:

23.56 length units

Step-by-step explanation:

To calculate the perimeter of a triangle, we need to calculate the length of all the sides, then sum up the lengths.

To calculate each side, we take the differences of the coordinates of consecutive vertices, square, add, and take square-root (Pythagoras theorem).

Side 1: (3,-2), (5, -8)

difference in coordinates=(2,-6), length=sqrt(2^2+6^2) = sqrt(40)

Side 2: (5, -8), (-2,1)

difference in coordinates=(7,-9), length=sqrt(7^2+9^2) = sqrt(130)

Side 2: (-2,1), (3,-2)

difference in coordinates=(5,-3), length=sqrt(5^2+3^2) = sqrt(34)

Perimeter

= sum of sides

= sqrt(40)+sqrt(130)+sqrt(34)

= 6.32+11.40+5.83

= 23.56 approximately

Answer:

∠1 = 180° - 123° = 57°

∠2 = 180° - 57° - 48° = 75°

∠3 = 180° - 123° - 13° = 44°

Answer:

2

[tex]m < 1 = 180 \degree - 123\degree \\ = 57\degree[/tex]

3

[tex]m < 2 = 180\degree - 57\degree - 48\degree \\ = 75\degree[/tex]

4

[tex]m < 3 = 180\degree - 123\degree - 13\degree \\ = 44\degree[/tex]

Answer:

x=5, y=11

Step-by-step explanation:

> sum of interior angles of a polygon is (n-2)·180°, where n-is the number of sides, so our rhombus has sum of angles =(4-2)·180° =360°

>we know that the opposite angles are congruent so ...

>we have the sum of interior angles is

108+108+7y-5+7y-5 = 360, combine like terms

14y +206 =360, subtract 206 from both sides

14y = 154, divide both sides by 14

y= 11

>the sides are congruent therefore

4x+17 = 8x-3 , subtract 4x, and add 3 from both sides

17+3 =8x-4x, combine like terms

20 = 4x , divide by 4 both sides

5 =x

Answer:

180

Step-by-step explanation:

30 = 2 x 3 x 5

45 = 3^2 x 5

60 = 2^2 x 3 x 5

90 = 2 x 3^2 x 5

LCM ( 30, 45, 60, 90 )

= 2^2 x 3^2 x 5

= 4 x 9 x 5

= 180

Answer:

Step-by-step explanation:

5 red

3 blue

6 white

2 green

total 16 marbles.

Note: P(E) = probability of event E happening

P(~E) = probability of event E NOT happening.

We usually leave probabilities in fractions whenever possible because they will not be subject to round-off errors.

A. choose one marble at random.

P(W) = 6 white / 16 total = 3/8

B. choose one marble at random.

P(~R) = (16-5)/16 = 11/16

C. choose one marble at random, then a second one without replacement,

there will be 3 blue out of 16 at the beginning, then if successful, there will be 2 blue out of 15.

P(BB) = (3/16)*(2/15) = 1 / 40

D. choose two with replacement

5 red out of 16 for first draw, still 5 red out of 16 for second draw.

P(RR) = (5/16)^2 = 25/256

Answer:

x =145/129

Step-by-step explanation:

129x-33=112

Add 33 to each side

129x-33+33=112+33

129x = 145

Divide each side by 129

129x/129 = 145/129

x =145/129

The equation can be used to find the number of times Maria hiked each trail is 5x + 10y = 90

let

5x + 10y = 90

Therefore, the equation to represent the number of times Maria hiked each trail is 5x + 10y = 90

Learn more about equation:

https://brainly.com/question/16863577

#SPJ1

Answer:

5x + 10y = 90

Step-by-step explanation:

[tex] 4 {x}^{2} + 20x + 16[/tex]

Step-by-step explanation:

[tex](2x + 8)(2x + 2) \\ = 2x(2x + 2) + 8(2x + 2) \\ = 4 {x}^{2} + 4x + 16x + 16 \\ = 4 {x}^{2} + 20x + 16[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}[/tex]

Answer:

The role of ABCD is two determine the points of the figure.

Answer:

Step-by-step explanation:

f(9)=5(9-3)(9-2)

=5*6*7

=210

Answer:

f(9) = 210

Step-by-step explanation:

In f(x) = 5(x-3)(x-2), replace each instance of x with 9:

f(9) = 5(9-3)(9-2), or:

       =5(6)(7) = 210

x-intercept (-40,0)

y-intercept (0,15)

Answer:

x intercept (-40,0)

y intercept (0,15)

Step-by-step explanation:

the point where a line cuts an axis (X or Y) is called the intercept of that axis.

Answer: 7238.2[tex]ft^3[/tex]

Step-by-step explanation:

The formula for a sphere's volume is  [tex]V=\frac{4}{3} \pi r^3[/tex].

Substitute r = 12 in the formula: [tex]V=\frac{4}{3} \pi (12)^3[/tex]

Then calculate (type the right side of the equation above in your calculator), and you will get an answer of 2304π. When you simplify further, you get 7238.22947. Rounded to the nearest tenth, it is 7238.2.

∴, the volume of the sphere is 7238.2[tex]ft^3[/tex], to the nearest tenth.

*note: it's [tex]ft^3[/tex] (feet cubed) because a sphere is a 3D object, so its volume is also a 3D measurement.

Answer:

-50+12y

Step-by-step explanation:

62+5y-112+7y

62-112+5y+7y

-50+5y+7y

-50+12y

Answer:

y would be 3

Step-by-step explanation:

x would be 0 since the line goes up, meaning it's positive, not negative btw

Answer:

C

Step-by-step explanation:

The others are repeated

Answer:

[tex]\text{D. }44.\overline{4}[/tex]

Step-by-step explanation:

*The person who asked this question clarified answer choice D should be [tex]\text{D. }44.\overline{4}[/tex].

Define a terminating decimal by a decimal that has a finite (or fixed) number of digits. Answer choices A, B, and C all have a finite number of digits, thus they are terminating decimals. The overline is answer choice D is using to represent that digit (4) is repeating and therefore there are an infinite number of digits in the decimal. Thus, [tex]\boxed{\text{D. }44.\overline{4}}[/tex] is not a terminating decimal.

Answer:

Top graph on the left

Step-by-step explanation:

f(x) =2(3)^x

Let x = 1

f(1) =2(3)^1

   = 2 *3 = 6

(1,6)

Answer:

i’m not sure good luck

Step-by-step explanation:

Answer:x would be 8 because 348 divided by 6 equals a quotient of 58

Step-by-step explanation:

Answer:

74 degrees

Step-by-step explanation:

As sum of interior and exterior at a vertex add to 180, subtract 106 from 180 to get 74 degrees