how do you subtract a negative 9 from a positive 8

Answer:

4

Step-by-step explanation:

[tex] \sqrt[4]{256} [/tex]

[tex] \sqrt[4]{4 \times 4 \times 4 \times 4} [/tex]

[tex] \sqrt[4]{ {4}^{4} } [/tex]

4

hope it's helpful ❤❤❤

THANK YOU

Step-by-step explanation:

2x⁴ = 9x²

2x⁴ - 9x² = 0

x²(2x² - 9) = 0

Either x² = 0 or 2x² - 9 = 0.

When x² = 0, x = 0.

When 2x² - 9 = 0, x² = 9/2, x = ± 3/√2.

Hence the solutions are

x = 0, x = 3/√2 and x = -3/√2.

Answer:

4200 m²

Step-by-step explanation:

The drawing below (not to scale) shows a running track. The ends are semicircles. The distance between the two inner parallel straight lines is 60 meters, and they are each 100 meters long. The track is 10 meters wide. Find the area of the track. Shaded part

Solution:

The big semicircle has a diameter = 60 m + 10 m + 10 m = 80 m

The radius of the big semicircle = 80 m / 2 = 40 m

The area of the two big semicircles at both end of the big track = 2 * (1/2 πr²) = πr² = π(40)² = 5027 m²

The big track has semicircles at both ends and a rectangle. The length of the rectangle = 100 m, the width of the rectangle = diameter of big semicircle = 80 m

Area of big rectangle = length * width = 100 m * 80 m = 8000 m²

Area of big track = 8000 m² + 5027 m² = 13027 m²

The small semicircle has a diameter = 60 m

The radius of the small semicircle = 60 m / 2 = 30 m

The area of the two small semicircles at both end of the small track = 2 * (1/2 πr²) = πr² = π(30)² = 2827 m²

The small track has semicircles at both ends and a rectangle. The length of the rectangle = 100 m, the width of the rectangle = diameter of small semicircle = 60 m

Area of small rectangle = length * width = 100 m * 60 m = 6000 m²

Area of small track = 6000 m² + 2827 m² = 8827 m²

The area of track (shaded part) = Area of big track - Area of small track = 13027 m² - 8827 m² = 4200 m²

Answer:

Multiply the radius by 2

Step-by-step explanation:

The diameter of a circle is 2times the radius of the circle. Do you know the radius? If so multiply that number by 2 and get the answer

Answer:uhhhhhhhhhh

Where dem beats been doe i den had to start spitting bars not work on the beats cuz I didn’t have you man bro

Step-by-step explanation:

Answer:

Perpendicular

Step-by-step explanation:

Khan

Answer:

x=1, y=7

Step-by-step explanation:

y = -3x + 10 - first equation

y=-3x + 4 - second equation

rearrange the expression to

-3x-y= -10

3x-y= -4

pick an equation and simplify; lets pick the second equation

3x-y= -4

[tex]\frac{3x}{3} = \frac{-4+y}{3}[/tex]  

divide 3 by both sides

x= [tex]\frac{-4+y}{3}[/tex] - third equation

substitute the value of x into an equation; lets pick the first equation

-3x-y= -10

-3[tex](\frac{-4+y}{3})[/tex]- y = -10

simplify. -3 cancels 3 so we are left with

-1(-4+y)-y = -10

simplify

4-y-y= -10

4-2y= -10

subtract 4 from both sides

-2y= -10-4

-2y= -14

divide -2 by both sides

y=7

substitute the value of y, (y=7) in an equation, we are using the second equation

3x-y= -4

3x-7= -4

3x = -4+7

3x= 3

divide 3 by both sides

x=1

so the answer is x=1, y=7

Answer:

The total amount Christian spent to win a prize is $25 ⇒ A

Step-by-step explanation:

Let us solve the question

∵ The rule is On = Q1 + (n - 1)d

∵ A basketball game awards a prize if Christian can shoot a basket

∵ The charge is $5.00 for the first shot

→ That means the first amount is 5

∴ Q1 = 5

∵ Then $2.00 for each additional shot

→ That means the common difference is 2

∴ d = 2

∵ Christian needed 11 shots to win a prize

→ That means the number of shots is 11

∴ n = 11

→ Substitute the values of Q1, d, n in the rule above

∵ On = 5 + (11 - 1)(2)

∴ On = 5 + (10)(2)

∴ On = 5 + 20

∴ On = 25

∴ The total amount Christian spent to win a prize is $25

Answer:

lkwelfknsdv

Step-by-step explanation:

fkamgikrnmg

Answer:

y=-1x+4

Step-by-step explanation:

-1 is the slope and 4 is the y intercept

Answer:

Perpendicular

Step-by-step explanation:

Answer:

the answer is b

Step-by-step explanation:

I took the test on EDG 2021

Answer:

That would be 48 ounces

Step-by-step explanation:

Answer:

48 ounces

Step-by-step explanation:

Thank me later

Answer:

2 and 1/2 = 2.5

2.5 divided by 3 = 0.83

0.83 x 2 = 1.66 or 1 and 2/3 gallons of paint left

Step-by-step explanation:

Hope this helps! Have a nice day!

Answer:

m = 1/4  (the slope is 1/4)

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

Explanation:

(0,1)

(4,2)

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

0 +4 = 4   <-- x value

1 +1 = 2   <-- y value

As we know, [tex]m=\frac{y}{x}[/tex] , so it's going be [tex]\frac{1}{4}[/tex]

Answer:

ok so jacob threw 1/5 of x

Step-by-step explanation:

if you say julien threw x and jacob threw 1/5 of that than jacob threw 1/5 of x

Answer:

-8g

Step-by-step explanation:

If it is in that order:

You can either do

1g(same a just g)-9g

or

-9g+1g and you get -8g for each

Answer:

$430.40

Step-by-step explanation:

7.6% of 400 = 0.076 × 400 = 30.4

Answer:$25 bucks and 60 cents

Step-by-step explanation:

Answer:

x=45

Step-by-step explanation:

180-90= 90

90/2=45

omg am sooo sorry  this is all i could do.

52= y + 42       90+ X + Y = 180

i rlly dont know am sorry

Given:

The coordinates of point K' are (6,5).

K' is the image of K after a reflection in the line y=2.

To find:

The coordinates of point K.

Solution:

Let the coordinates of point K are (a,b).

If a figure is reflected over the line y=2, then

[tex](x,y)\to (x,2(2)-y)[/tex]

[tex](x,y)\to (x,4-y)[/tex]

Using this formula, the coordinates of image of K are

[tex]K(a,b)\to K'(a,4-b)[/tex]

The coordinates of point K' are (6,5).

[tex]K'(a,4-b)=K'(6,5)[/tex]

On comparing both sides, we get

[tex]a=6\text{ and }4-b=5[/tex]

[tex]a=6\text{ and }-b=5-4[/tex]

[tex]a=6\text{ and }-b=1[/tex]

[tex]a=6\text{ and }b=-1[/tex]

Therefore, the coordinates of point K are (6,-1).

Answer:

k is (6,5)

answer is (6,-1)

Step-by-step explanation:

Step-by-step explanation:

from the picture we got angle HFG is 45 degree.

let x is the length of HF

we got sin45=sqrt(8)/x

1/sqrt(2)=sqrt8/x

x=sqrt16

x=4

note that x is the length of HF

let y is the length of HE

use pythagorean theory

3^2+4^2=y^2

9+16=y^2

25=y^2

5=y

so tanE is x/y

tanE=4/5

Answer:

3y+5

Step-by-step explanation:

You will have to distribute the negative to (y-2).

4y+3-y+2

3y+5

Answer:

(4y + 3) - (y -2)

(4y + 3) - y + 2

3y + 3 + 2

3y + 5

Answer:

x = 2

Step-by-step explanation:

How to find "x"

3x = 4 + 2(3 - x) *Remove the parentheses*

3x = 4 + 6 - 2x *Calculate*

3x = 10 - 2x *Move the variable to the left*

3x + 2x = 10 *Collect the terms*

5x = 10 *Divide both sides*

x = 2

I hope the helped!!!

Answer:

45 cm²

Step-by-step explanation:

The area of the shaded region is calculated as

area of outer triangle - area of inner triangle

area of outer = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the height ) , then

A = [tex]\frac{1}{2}[/tex] × 15 × 10 = 75 cm²

area of inner = [tex]\frac{1}{2}[/tex] × 12 × 5 = 30 cm²

Thus

area of shaded region = 75 - 30 = 45 cm²

Answer:

it will be equal to = 1/2 or

[tex]2 {}^{ - 1} [/tex]

Step-by-step explanation:

[tex]2 {}^{ - 1} \times 4 {}^{ - 1} \div 2 {}^{ - 2} [/tex]

[tex]\frac{1}{2} \times \frac{1}{4} \div \frac{1}{4} [/tex]

[tex] = \frac{1}{2} [/tex]

or

[tex] {2}^{ - 1} [/tex]

Answer:

I'm trying to figure it out but I'm confused on it I'm very sorry but maybe you can try desmos to help?

Answer:

Drawn below:)

Step-by-step explanation:

Red graph line is y=3x+1

Blue graph line is y=-x-3

Answer:

i think b

Step-by-step explanation:

Answer:

i wanna say -80?

Step-by-step explanation: so when you go from -8 to -11 its counts by 3 -11 to -14 its 3 so count up to get our answer.   i just seen how many was in each 5 set which was 12 so i did -20 -12 so then i just added up and got -80