The difference of two numbers is 12. If the greater number is three times the smaller one, find the numbers. ​

Answer:

D. -1

Step-by-step explanation:

Use rise over run, (y2 - y1) / (x2 - x1)

Plug in the points:

(y2 - y1) / (x2 - x1)

(3 - 7) / (2 + 2)

-4 / 4

= -1

So, the slope is -1.

The correct answer is D. -1

Answer:

0.6

Step-by-step explanation:

Cos(A) = adjacent / hypotenuse

The adjacent side is the smaller of the two sides making up A that is not the hypotenuse

adjacent = 30

hypotenuse = 50

cos(A) = 30/50 = 0.6

Answer:

This is how you do it by finding the perpendicular and base

Answer:

It's $125.00

(B btw)

Step-by-step explanation:

I got it it right lol

The depth of the mirror of the cross-section of a searchlight would be 8.33 cm if the light bub has a vertex at 3 cm and the mirror is 20 centimeters across at the origin.

A cross-section is perpendicular to the axis of the symmetry goes through the vertex of the parabola. The cross-sectional shape of the mirrored section of most searchlights or spotlights is parabolic.

Given:

a = 3

y = [tex]\frac{20}{2}[/tex] cm = 10 cm

Solution:

from the equation [tex]y^{2} = 4ax[/tex]

[tex]y^{2} = 4*3*x\\ y^{2} = 12x[/tex]

putting x, 10 cm in the equation

[tex]x=\frac{10^{2} }{12} \\\\x= \frac{100}{12} \\\\x= 8.33 cm[/tex]

thus, the depth of the mirror would be - 8.33 cm

Learn more about other problems of the parabola:

https://brainly.com/question/12793264

Answer:

7

Step-by-step explanation:

if the bases of the exponents are the same then we can add the powers. so 2^3 * 2^4 = 2^7 = 128.

Answer:

7

Step-by-step explanation:

2^3⋅2^4= 2^7

2^7=2^x

since it had the same base you wouldn't need to worry about it you can just focus on the exponent.

7=x

swap it over

x=7

Answer:

d: 20

Step-by-step explanation:

alternative angle

Answer:  assuming g(x) is the inverse of f(x)

domain of g(x) = range of f(x)

range of g(x) = domain of f(x)

Answer:

Step-by-step explanation:

b) a² - 1 + b(b - 2a) = a² -1 + b*b -  b*2a     {distributive property}

                              =a² - 1 + b² - 2ab

                               = (a² - 2ab + b² ) - 1  

                               = (a - b)² - 1²           {use identity x²-y²= (x+ y)(x -y)}

                               = (a - b + 1)(a -b +1)

b) 15 +8y + y² - 2x - x² = (y² + 8y  + 15) - x² - 2x

                                    =  (y² + 5y + 3y + 15) - x(x + 2)

                                    = [ y(y + 5) + 3(y +5)] - x(x + 2)

                                   = [(y + 5)(y+3) ] - x(x +2)

Answer:

only -3,5 is the answer.

Answer:

The answer to your question is 1, or answer choice A.

Step-by-step explanation:

x+ 2 /7 = 3 /7 x+ 6 /7

x+ 2 /7 − 3 /7 x= 3 /7 x+ 6 /7 − 3 /7 x

4 /7 x+ 2 /7 = 6 /7

4 /7 x+ 2 /7 − 2 /7 = 6 /7 − 2 /7

4 /7 x= 4 /7

( 7 /4)*( 4 /7 x)=( 7 /4 )*( 4 /7 )

x=1  

Answer:

A≈706.86

Step-by-step explanation:

welcome to brainly

Answer:

Let π =22/7

area of circle = πr²

= 706.86

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

Answer:

-1

Step-by-step explanation:

Mode is the number that appears most often

−1, 0, 3, 4, −3, −1

-1 appears twice which is more than any other number

-1 is the mode

Answer:

Vertex

Step-by-step explanation:

The vertex is the point were two rays meet to form an angle.

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

[tex]\boxed{\sf \overrightarrow{XV}\:and\:\overrightarrow{XY}}[/tex]

[tex]\Large{\underline{\sf Observations:-}}[/tex]

Option:-1

Question asks to find opposite rays .Here the given options are segments so this is wrong.

Option-2

This is also given segments so its wrong

Option:-3

Question asks to find rays having endpoint x .means both started from one point and went different sides

So here Its v-x-y so its wrong.

Answer:

5%

Step-by-step explanation:

Answer is 5%.

Hope it helps

Answer:

133

Step-by-step explanation:

7 * 19

Rewrite 19 as 20 -1

7 * (20-1)

Distribute

7*20 - 7*1

140 - 7

133

Answer:

5 < x < 21

Step-by-step explanation:

I did this bfore.

Answer:

y=1

Step-by-step explanation:

5=2-3y+6

3y=2-5+6

3y= -3+6

3y= 3

3y÷3=3÷3

y=1

Answer:

16

Step-by-step explanation:

Substitute y = 5 into the expression

y² - 3y + 6

= 5² - 3(5) + 6

= 25 - 15 + 6

= 16

Answer:

106+18≠28

106+18=124

in case the b was misplaced with the 6

10b=28-18

10b=10

10b/10=10/10

b=1

hope this is helpful

Answer:

x = 4/3

Step-by-step explanation:

x^3 = 64/27

Take the cube root of each side

(x^3)^1/3 =( 64/27)^1/3

x = 4/3

Answer:

4th option

Step-by-step explanation:

Given

x³ = [tex]\frac{64}{27}[/tex] ( take the cube root of both sides )

[tex]\sqrt[3]{x^3}[/tex] = [tex]\sqrt[3]{\frac{64}{27} }[/tex]

x = [tex]\frac{\sqrt[3]{64} }{\sqrt[3]{27} }[/tex] = [tex]\frac{4}{3}[/tex]

Answer:

0.026

Step-by-step explanation:

6 out of 10 steps between 0.02 and 0.03.

Answer:

Step-by-step explanation:

Looks hard

Answer:

-13 1/2 < -6/8

Step-by-step explanation:

*Any negative in either the numerator or denominator will make the entire fraction negative.

1/2  = .5

-13 1/2 = -13.5

-6/8 = -3/4

-3/4 = -0.75

-6/8 = -0.75

-13 1/2 = -13.5

Which means:

-13 1/2 < -6/8

Hope this helped.

Answer:

[tex] < [/tex]

Step-by-step explanation:

[tex] \frac{6}{8} [/tex]

Is close to 0 (to positive) you can use a time line to determine which is a correct answer

Answer:

pi

Step-by-step explanation:

A rational number can be written as a fraction

18/1 is a fraction

2.6666666 can be written as 2 2/3 = 8/3

-16/3 is a fraction

pi is a non repeating non termination decimal which is irrational

Answer:

The answer is π

Step-by-step explanation:

An irrational number is a type of real number which cannot be represented as a simple fraction. It cannot be expressed in the form of a ratio.

Seashells glued on 1 photo frame = k

So, seashells glued on 5 photo frame

= Seashells glued on 1 photo frame × 5

= k × 5

= 5k

So, Erynn used 5k seashells.