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What is the value of the expression (64+4^2 )
______ its a fraction
2^2

Step-by-step explanation:

In order to describe speed of an object, we must describe the average speed of the entire trip. It is equal to the distance moved divided by time taken.

If a person covers a distance of 1 km to the library in 15 minutes, we can find its average speed.

Firstly, we convert 15 minutes to hour, 15 min = 0.25 hours

Now, using formula of speed = distance/time

[tex]v=\dfrac{1\ km}{0.25\ h}\\\\v=4\ km/h[/tex]

It means that the average speed of the person is 4 km/h. Hence, the given statement is true.

Answer:

(2x-5)(4x^2+10x+25)

Explanation:

Factoring difference of cubes (a3−b3): (a−b)(a2+ab+b2)

Here, a is 2x because the cube root of 8 is 2 and the cube root of x3 is x, b is 5 because the cube root of 125 is 5.

Plug the numbers in:

(2x−5)((2x)2+2x⋅5+52)

(2x−5)(22x2+10x+25)

(2x−5)(4x2+10x+25)

Answer:

8x^3 can also be written as [tex](2x)^{3}[/tex].

-125 can also be written as [tex]-5^{3}[/tex].

Factoring the polynomial:

[tex](2x)^3+(-5)^3[/tex]

Answer: 22

Step-by-step explanation:

I got it right on khan academy

Answer: C. x= 1 and x= -4

Step-by-step explanation:

10=4x+6

4=4x subtract 6

1=x divide by 4

and

-10=4x+6

-16=4x subtract 6

-4=x divide by 4

Answer:The plant growth 1/2 inches each week

Step-by-step explanation:

Answer:

The answer is 4.8548 × 10^2

Step-by-step explanation:

Answer:

4.8548×10^2

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of the decimal places you move will be the exponent on the 10. The sign of the exponent will depend on the direction you are moving the decimal.

Answer:

10 1/2

Step-by-step explanation:

21 ÷ 2 = 10.5 = 10 1/2

Answer:

10 1/2

Step-by-step explanation:

Answer:

y=2

Step-by-step explanation:

Answer:

y = -2

Step-by-step explanation:

you need to regroup the numbers.

2y + (-8y) = 21 + (-9)

-6y = 12

y = -2

Answer

So im not sure but I think that the answer is x=0.08y-0.18

Step-by-step explanation: Solve for x by simplefying both sides of the equation, then isolating the variable.

Answer:

The numerical length of MO is 20 units

Step-by-step explanation:

Let us solve the question

∵ Point N is on line segment MO

→ That means point N divides segment MO into two parts MN and NO

∴ MO = MN + NO

∵ MO = 2x + 5

∵ MN = 2x + 3

∵ NO = 2x - 3

→ Substitute them in the equation above

∴ 3x + 5 = (2x + 3) + (2x - 3)

→ Add the like terms in the right side

∵ 3x + 5 = (2x + 2x) + (3 - 3)

∴ 3x + 5 = 4x + 0

∴ 3x + 5 = 4x

→ Subtract 3x from both sides

∵ 3x - 3x + 5 = 4x - 3x

∴ 5 = x

∴ The value of x is 5

→ To find MO substitute x by 5 in its expression

∵ MO = 3x + 5

∴ MO = 3(5) + 5

∴ MO = 15 + 5

∴ MO = 20 units

The numerical length of MO is 20 units

Answer:

79.6 ft / 1 minute

Step-by-step explanation:

Answer:

79.6ft per minute

Step-by-step explanation:

1194/15=79.6

Given:

Lilly starts hiking along a trail at 3 miles per hour.

Dave starts hiking the same trail from the same starting point at 3.5 miles per hour.

lilly walked 2 miles before Dave started hiking.

To find:

Whether he will catch up to her and write an equation.

Step-by-step explanation:

Let the number of hours when both are hiking be h.

lilly walked 2 miles before Dave started hiking at 3 miles per hour.

Lilly hiking = 2+3h

Dave starts hiking the same trail from the same starting point at 3.5 miles per hour.

Dave hiking = 3.5 h

He will catch her if hiking distance of both are equal.

[tex]2+3h=3.5h[/tex]

Subtract 3h from both sides.

[tex]2=3.5h-3h[/tex]

[tex]2=0.5h[/tex]

Divide both sides by 0.5.

[tex]\dfrac{2}{0.5}=h[/tex]

[tex]4=h[/tex]

Therefore, Dave will catch her after 4 hours.

Dave will catch up Lilly after 4 hours.

Since Lilly starts hiking along a trail at 3 miles per hour, and Dave starts hiking the same trail from the same starting point at 3.5 miles per hour, if Lilly walked 2 miles before Dave started hiking, to determine when he will have catch up to her the following calculation must be performed:

Therefore, Dave will catch up Lilly after 4 hours.

Learn more in https://brainly.com/question/13590356

Answer:

  J' = (-2, 4)

Step-by-step explanation:

The transformation for 270° counterclockwise rotation about the origin is ...

  (x, y) ⇒ (y, -x)

The point J is (-4, -2), so the point J' is ...

  J' = (-2, -(-4))

  J' = (-2, 4)

Answer: the Y coordinate is 4

Answer:2x-y-6=0 & 2x-y=6

Step-by-step explanation:

-3y=-6x+18.

-3y+6x=18

-y+2x=6

2x-y=6

2x-1y=6

2x-y=6

2x-y-6=0

Answer:

y=-6+2x

Step-by-step explanation:

Answer:

This is a geometric sequence since there is a common ratio between each term. In this case, multiplying the previous term in the sequence by 4

gives the next term. In other words,

an=a1.rn-1.

Geometric Sequence:

R=4

This is the form of a geometric sequence.

an=a1rn-1

Substitute in the values of

a1=11 and

r=4.an=(11)(.)4)n-1

Remove parentheses.

an=11.4n-1

Answer:

11,-88,704

Step-by-step explanation:

what exactly do u mean

Answer:

3 pi is greater

Step-by-step explanation:

I don't know the exact amount of pi so I can't multiply it, but I do know that it starts with 3.14159 which is greater than 3 (which is what you have to multiply by 3 to get 9) so the amount will be larger than nine.

Answer:

B = 1/243

Step-by-step explanation:

Answer:

7280000000 or 7.28^9 (in scientific notation)

Step-by-step explanation:

this question is asking you to transfer numbers out of scientific notation and multiply them. 10^6 is 1 followed by 6 zeros (good trick to remember) or 1000000. when you multiply anything by a power of 10 you just add that many zeroes to it or move the decimal point one point to the left for every zero. so in this example it is 5.2 times 1000000 which is 5200000. we do the same for the other one and we get 1400. When we multiply these two values we get 7280000000 or 7.28^9

Answer:

A will equal 17.

Step-by-step explanation:

the perimeter. The perimeter is the total sum of all the edges

Answer:

1.09

Step-by-step explanation:

Answer:

72/b = h

Step-by-step explanation:

plug in known values

A = 1/2 (bh)

36 = 1/2 (bh)

goal is to isolate the variable h (height)

multiply both sides by 2 to cancel out 1/2

36 × 2 = 1/2 × 2 (bh)

72 = bh

divide both sides by b (base)

72/b = bh ÷ b

72/b = h

i dont see the value for base given so this would be the final answer as far as i know

[tex](6 - 2) \times 180 = 4 \times 180 = 720 \\ [/tex]

So the sum of the nterior angles of the figure must equal 720° :

[tex](x - 8) + 4x + 2x + 3x + 2x + 2x = 720 \\ [/tex]

[tex]14x - 8 = 720[/tex]

Plus both sides 8

[tex]14x = 728[/tex]

Divided both sides by 14

[tex]x = \frac{728}{14} = 52 \\ [/tex]

So ;

[tex]x = 52[/tex]

And we're done...

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Explanation:

The angles (2x+24) and x are same side interior angles. Same side interior angles are supplementary when we have parallel lines.

(2x+24) + (x) = 180

2x+24+x = 180

3x+24 = 180

3x = 180-24

3x = 156

x = 156/3

x = 52

Answer:

x = 7

Step-by-step explanation:

7x-1+6x=90

Combine like terms

13x-1 = 90

Add 1 to each side

13x-1+1 = 90+1

13x = 91

Divide by 13

13x/13 =91/13

x = 7

Answer:

e=49

f=131

d=90

Step-by-step explanation:

Answer:

c = 208.8

Step-by-step explanation:

a. [tex]\frac{c}{7.2} =29[/tex]   To solve for C, you need to get the variable on one side of the equation and the numbers on the other side of the equation.

b.  [tex]\frac{c}{7.2} =29[/tex]   You need to move the 7.2 to the other side. So, multiply both sides by 7.2, because it's being divided, so multiplying will cancel it out.

c:  [tex]c = 29 * 7.2[/tex]   Then, multiply 7.2 by 29. (The * symbol means multiply)

d.  c. = 208.8   The answer is 208.8, which is rounded to the tenths place.

Hope this helps! I tried to explain it in detail. :)