The length of a shoestring is 21 1/4 centimeters long. What would be the length of 4 of these shoe strings?​

Answer:

B. 5 x [tex]\sqrt{24}[/tex]

Step-by-step explanation:

5 x [tex]\sqrt{2}[/tex] x [tex]\sqrt{12}[/tex] = 24.49494949...

5 x [tex]\sqrt{24}[/tex] = 24.49494949...

Answer: the intersection of plane A and plane S will be: line CW

the intersection of lines N and K is: point V

point X is the intersection of: line M and plane A

Step-by-step explanation:

Answer:

The intersection of plane A and plane S will be

✔ line CW

The intersection of lines n and k is

✔ point V

Point X is the intersection of

✔ line m and plane A

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

Do 1 divided by 4 and you get 0.25 then divide 3 and 0.25 and you get 12

Answer: 12/1

Step-by-step explanation:

3 divided 1/4                                                                                                                                    K- 3/1 divided 1/4                                                                                                               C-3/1 multiple 1/4                                                                                                       F-3/1 multiple 4/1 = 12/1 = 12

Answer

He earned 35

Step-by-step explanation:

He earned 35 because if you multiply $7 with 5 hours it equals $35, therefore the answers is $35

Hope this helped ;)

Answer: A: (x + 4)² + (y - 5)² = 8

Step-by-step explanation:

The equation of a circle is: (x - h)² + (y - k)² = r²     where

To find the equation of circle A, we need (h, k) and r².

It is given that (h, k) = (-4, 5)

The distance between the center of circles A and B is the radius of circle A.

Let's find the center of circle B by completing the square:

x² - 4x + ____ +  y² + 6y + _____ = 12 + ____ + _____

     ↓                            ↓      

  h = -4/2                    k = 6/2

  h = -2                       k = 3              →  Circle B has center (-2, 3)

Now let's find the distance between the center of circles A and B:

[tex](r_A)^2=d^2=(x_A-x_B)^2+(y_A-y_B)^2[/tex]

                = (-4 - (-2))² + (5 - 3)²

                =     (-2)²     +     2²

                =       4        +     4

                = 8

Now we have the the center (h, k) and the r² for circle A:

(h, k) = (-4, 5) and r² = 8   →    (x + 4)² + (y - 5)² = 8

Answer:

see explanation

Step-by-step explanation:

(1)

CD = CE - DE = 8 - 2 = 6

CB = CD = 6 ( given as congruent ) , thus

AC = AB + CB = 4 + 6 = 10

(2)

∠ 2 + ∠ BCD + ∠ DCF  = 180° ( sum of angles on a straight line )

∠ 2 + 60° + 70° = 180°

∠ 2 + 130° = 180° ( subtract 130° from both sides )

∠ 2 = 50°

Answer:

-2

Step-by-step explanation:

60/2=6-2n

10=6-2n

6-2n=10

-2n=10-6

-2n=4

n=4/-2

n=-2

Answer:

(3)79.95 + 59r = 534.85

Step-by-step explanation:

Answer:

6/5

Step-by-step explanation:

[tex](y2 - y1) \div (x2 - x1) [/tex]

[tex](1 - ( - 5)) \div (7 - 2) = \frac{6}{5} [/tex]

The slope of the line that passes through the points (2, -5) and (7, 1) is 1.2.

Slope is calculated by finding the ratio of the "vertical change" to the "horizontal change" between (any) two distinct points on a line.

[tex]Slope = \frac{y2-y1}{x2-x1} \\\\= \frac{1-(-5)}{7-2} = \frac{6}{5} = 1.2[/tex]

Learn more about slope here

https://brainly.com/question/3605446

#SPJ3

Answer:

8.4*10^-3

Step-by-step explanation:

Move the decimal point 3 places in order to get a number in the one's place.

Answer:

700,000

Step-by-step explanation:

The answer is the product of their slope is -1.

First, let's break this down. Perpendicular lines are line with opposite reciprocal slopes. Opposite meaning the inverse sign and reciprocal meaning flipped.

For instance,

If a line had the slope of 5, its inverse would have a slope of -1/5.

Now, if we multiply these numbers together,

5 * -1/5 = -1

The 5's cancel out.

This works for any two perpendicular lines

Answer:

The answer is the product of their slopes is -1.

Step-by-step explanation:

Step-by-step explanation:

(x + 8)(x - 1) = x^2 - x + 8x - 8 = x^2 + 7x - 8.

Hence a = 1, b = 7, c = -8. (Options A, D and E)

Answer:

  (a) 412 +A -B

  (b) 412 +A -B + (A-20) -(B+14)

  (c) 378 +2A -2B

Step-by-step explanation:

Water flowing in adds to the amount in the reservoir. Water flowing out subtracts from the amount in the reservoir.

__

(a) 412 + A - B . . . . at the end of January

__

(b) Flowing in was (A -20), flowing out was (B +14). In February, we start with the amount at the end of January.

  (412 +A -B) +(A-20) -(B +14)

__

(c) Simplifying the above, we have ...

  412 -20 -14 +2A -2B = 378 +2A -2B

To find the midpoint, we just have to add the x values and divide by two then add the y values and divide by two

x-value = (7 + 3) / 2 = 5

y-value = (2 + 4) / 2 = 3

The midpoint = (5, 3)

Answer:

Bisector

Step-by-step explanation:

Brainliest pls

Answer:

the answer is the bisector

Answer:

I hope C

Step-by-step explanation:

if I'm wrong please let me know

Answer: C

Step-by-step explanation:

The domain is all real values of x such that x is less than or equal to zero.

If x is greater than  zero then all the positive numbers  will make the number in the square root negative and that will  become an imaginary number.

If x is zero  then the number in the number will be 0 and find the square root of 0 is possible.

Answer:

[tex]a=-3[/tex]

Step-by-step explanation:

[tex]-2a-9=6a+15[/tex]

Add 9 to both sides:

[tex]-2a-9+9=6a+15+9[/tex]

[tex]-2a=6a+24[/tex]

Subtract 6a from both sides:

[tex]-2a-6a=6a+24-6a[/tex]

[tex]-8a=24[/tex]

Divide both sides by -8:

[tex]\frac{-8a}{-8}=\frac{24}{-8}[/tex]

[tex]a=-3[/tex]

Answer:

a=-3

Step-by-step explanation:

-2a-9=6a+15

+2a +2a

-9=8a+15

-15 -15

-24=8a

8 8

-3=a

Answer:

irrational

are the numbers like 7.55782902..where the numbers aren't repeated

Answer:

30% of 50 is 15

Step-by-step explanation:

30% times 50 equal 15

hope this helps you :)

Given:

For a function f, [tex]10 = f(-4)[/tex].

To find:

The coordinates of a point on the graph of f.

Solution:

We have,

[tex]10 = f(-4)[/tex]

It means the value of function f is 10 at -4.

On a coordinate plane x-axis represents the input values and y-axis represents the output values of a function. So,

x-coordinate = input value = -4

y-coordinate = output value = 10

Therefore, the required coordinates of a point on the graph of f are (-4,10).

Answer: m=-4

Step-by-step explanation: Plug -4 in for m

Answer:

m- 4=2m

m -2m=4

- m=4

m= -4

mark it as brainliest!!!

Answer:

4/13 hours

Step-by-step explanation:

Total pounds of lasagna = 4 1/3 pounds

Total time taken to cook = 1 1/3 hours

How many hours per pound did it take to cook the lasagna?

Hours per pound of lasagna = Total time taken to cook / Total pounds of lasagna

= 1 1/3 hours ÷ 4 1/3 pounds

= 4/3 ÷ 13/3

= 4/3 × 3/13

= 4/13 hours

It will take 4/13 hours to cook each pound of the lasagna

Answer:

You did not give the options, so i just will graph it.

The inequality is:

-35 - 2*x + 1 < 11.

Now we would want to isolate the x in one side, so we can start by adding 35 in both sides.

(-35 -2*x + 1) + 35 < 11 + 35

-2x + 1 < 46

now we can subtract 1 in both sides:

-2x + 1 - 1 < 46 - 1

-2x < 45

Now we can divide by -2, remember that if we multiply or divide by a negative number, then the "direction" of the sign changes.

(-2x)/-2 > 45/-2

x > -22.5

Then the graph of the set is an open dot at the point x = -22.5 (this means that the set does not include this point) and a line that extends to the right. (Extends to the right because x is larger than -22.5)

Below is an example of how to draw the graph that represents the set of solutions.

Answer:

Everything is x2 itself.

Step-by-step explanation:

5x2=10 10x2=20 20x2=40

Answer:

it multiples time 2 every time

Step-by-step explanation:

5 to ten 5times 2

10 to 20 10 time 2

20 to 40. 20 time 2

Correct answer is D.

Given that:

James is 6 times older than his friend Zach, if Zach added 8 to his age and multiplied this sum by 3.

Step-by-step explanation:

Let the Zach's age be Z years.

6 times older than Zach = 6Z

Zach added 8 to his age and multiplied this sum by 3 = 3(Z+8)

Now,

[tex]6Z=3(Z+8)[/tex]

[tex]6Z=3Z+24[/tex]

[tex]6Z-3Z=24[/tex]

[tex]3Z=24[/tex]

Divide both sides by 3.

[tex]Z=\dfrac{24}{3}[/tex]

[tex]Z=8[/tex]

Therefore, the required equation is [tex]6Z=3(Z+8)[/tex] and Zach's age is 8 years.

Answer:

Step-by-step explanation:

the product of odd numbers is always odd

the product of even numbers is always even  

the product of odd number and even one is always even

the sum of two odd numbers is always even

and the sum of two even numbers is always even

so if x is even number we have:

x²=x•x   - even number

x⁴=x²•x²  - even number

3x²=3•x²  - even number

y = x⁴+3x²   - even number

and if x is odd number we have:

x²=x•x   - odd number

x⁴=x²•x²  - odd number

3x²=3•x²  - odd number

y = x⁴+3x²   - even number