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Answer:

Step-by-step explanation:

let the numbers be x and y,then

x+y=18

x=18-y

also xy=-63

(18-y)y=-63

18y-y²=-63

y²-18y-63=0

y²-21y+3y-63=0

y(y-21)+3(y-21)=0

(y-21)(y+3)=0

y=21,-3

when y=21

x=18-21=-3

when y=-3

x=18-(-3)=18+3=21

so numbers are -3 and 21.

Answer:

36

Step-by-step explanation:

The numbers given represent an arithmetic series with a common difference of -5. The formula to find the nth term of an arithmetic sequence is:

a + (n - 1)d

where a is the first term and d is the common difference. We can substitute our values in:

261 + (46 - 1)(-5)

261 + (45)(-5)

261 + (-225)

36

Answer:

36

Step-by-step explanation:

Have a good day :)

Answer:

517.5 mi^2

Step-by-step explanation:

Divide shapes into 3 shapes ( 1 triangle and 2 rectangles

b = 17

h = 25

Area of triangle = [tex]\frac{1}{2}[/tex] Bh

A = [tex]\frac{1}{2}[/tex] (17)(25)

A = 212.5 mi^2

Area of 1st rectangle = lw = 17(9) = 153 mi^2

Area of 2nd rectangle = lw = 19(8) = 152 mi^2

Area of figure = 212.5 +153 + 152 = 517.5 mi^2

Answer:

4

Step-by-step explanation:

To find the common ratio, take the second term and divide by the first term

24/6 = 4

Check by taking the third term and dividing by the second term

96/24 = 4

The common ratio is 4

Answer:

208

Step-by-step explanation:

112+96=208

Answer:

3

Step-by-step explanation:

Answer:

3. (-48) devide 48 = -1 class 7th Chapter integer

The answer is : -1

Answer:

7

Step-by-step explanation:

9 - 2 = 7

7 + 9 = 16

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Answer:

360 ft

Step-by-step explanation:

1 yard = 3 feet

120x3 = 360

Brainliest?

Answer:

-2x-6=-2x-6

-6=-6

infinity many solutions

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

All Real Numbers

Step-by-step explanation:

Answer:

2.85 in²

Step-by-step explanation:

Area of triangle = 1/2 x base x height

1/2 x 1.9 x 3 = 2.85 in²

Answer: 100

Explanation: triangle area is l x h ÷ 2 rectangle area is l x h. 4 x 3 =12÷2 +12÷2 =12 11x4x2= 88 88+ 12=100.

Answer:

good luck always brings luck the answer is 12

Step-by-step explanation:

Answer:

Step-by-step explanation:

HOPE IT HELPS

(FROM CROSS)

Answer:

yey

Step-by-step explanation:

Answer:

96cm

Step-by-step explanation:

If the width is x then length is 2x

so,

x+x+2x+2x=288

6x=288

x=48

length is 48cm

Answer:

108.75km

Step-by-step explanation:

please find attached the diagram

total displacement can be determined by using Pythagoras theorem

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c =  hypotenuse

length of x =

20² + 40²

= 400 + 1600

2000

square root of 2000

= 44.72km

length of y

40² + 50²

1600 + 2500 = 4100

square root of 4100

64.03km

total displacement = 44.72 + 64.03 = 108.75

Answer:

(-∞,0)

Step-by-step explanation:

The graph of ƒ(x) = |x| is below.

The function is decreasing  on (-∞,0) .

A is wrong. The function both decreases and increases on (-∞,∞).

C is wrong. The function is decreasing on (-6,0), but that is only a portion of the interval.

D is wrong. the function is increasing on (o,∞)

Answer:

[tex]\sqrt[12]{8} ^x[/tex]

Step-by-step explanation:

[tex]3 / \frac{1}{4} = 12[/tex]

[tex]\huge{ \mathfrak{  \underline{ \underline{Answer }}\:  \:  ✓ }}[/tex]

The given Angles are Alternate Exterior Angle pair, so their measures will be equal :

Now,

[tex] \large{ \boxed{\angle A = 6x - 2}}[/tex]

Therefore Value of [tex]\angle A = 148°[/tex]

_____________________________

[tex]\mathrm{ \#TeeNForeveR}[/tex]

Answer:

∠A= 148°

Step-by-step explanation:

∠A= ∠B

∠A= 6x-2

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

hope it helps..

have a great day!!

Answer:

B

Step-by-step explanation:

-x - 1 = x^2 + x

x^2 + 2x + 1 = 0

(x+1)(x+1) = 0

x = -1 (double soution)

y = 1-1 =

y =0

(-1,0) = double solution

Answer:

A. Translate 1 to the right, reflect over the x-axis, then scale vertically by a factor of 1

Step-by-step explanation:

Initially:

We have the function [tex]y = k(x)[/tex]

k(x + 1)

To translate a function k(x) a units to the left, we find k(x + a).

Thus, k(x+1) is the translation of k(x) 1 unit to the left.

-k(x+1)

Multiplying a function by a negative constant is the same as reflecting it over the x-axis, and then scaling it vertically by a factor of the constant.

Thus:

The answer is given by option A:

A. Translate 1 to the right, reflect over the x-axis, then scale vertically by a factor of 1

Answer:

t = 4 seconds

Step-by-step explanation:

The height of a soccer ball as a function of time is given by :

[tex]h(t)=-16t^2+48t+64[/tex]

We need to find the time when the ball hit the ground i.e. h = 0

Put h = 0 in above equation. So,

[tex]-16t^2+48t+64=0\\\\16(-t^2+3t+4)=0\\\\-t^2+3t+4=0[/tex]

It is a quadratic equation such that,

t = -1 s and t = 4 s

Neglecting -1 s, the ball will hit the ground after 4 seconds.

Answer:

200

Step-by-step explanation:

41 x 5 = 205

20% x 5 = 100%

Answer:

(-10,-7)

Step-by-step explanation:

On the x-line, it is on -10. Therefore, we know that the x-value is -10. On the y-line, the y- value is -7. Therefore, the y-value is -7. Therefore, it is on the point (-10,-7)

If this helps please mark as brainliest

Answer:

10m The answer is D

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

12/1.5 is 8

you divide the total amount (12) by how much you're giving out (1.5 or 1 1/2) to find how many even groups can get a share