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3 years ago

If the division problem is 2.25 how many places should you move the decimal point in the dividend

Mathematics

1 answer:

Kazeer [188]3 years ago

4 0

I think you move it up and you divide 225 divided by X

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Please help.<br> Explain please.

Sunny_sXe [5.5K]

When n = 1, 2(1) + 1 = 3

When n = 2, 2(2) + 1 = 5

When n = 3, 2(3) + 1 = 7

When n = 4, 2(4) + 1 = 9

When n = 5, 2(5) + 1 = 11

Sum = 3 + 5 + 7 + 9 + 11 = 35

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Answer: 35
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4 0

3 years ago

Read 2 more answers

Find the missing side of each triangle. leave your answers in simplest radical form

dedylja [7]

X^2 = 4^2 - (2√3)^2
x^2 = 16 - 12
x^2 = 4
x = 2

answer
x = 2 cm

7 0

4 years ago

Evaluate the expression 3.14(7)^2

ruslelena [56]

Answer:

153.86

Step-by-step explanation:

3.14(7)^2

3.14 × (7 × 7)

3.14 × 49

153.86

6 0

3 years ago

What is the volume of a sphere that has a 12m diameter?

lesya [120]

Volume of Sphere = (4/3)*(pi)*(r^3)

r = (D/2) = 6 m

  =<span>(4/3)*(pi)*((6^3)

  = 904.7786.. m^3
I hope this helps.</span>

5 0

4 years ago

-x^2+4x-8 <br>axis of symmerty

V125BC [204]

Answer:

$\boxed {\boxed {\sf x=2}}$

Step-by-step explanation:

The axis of symmetry can be calculated using the formula:

$x=\frac{-b}{2a}$

First we must determine a and b from the quadratic: $-x^2+4x-8$ . This is in standard form, with the highest power first in descending order.

Standard form is also: $ax^2+bx+c$

If we compare this to the quadratic given, we can conclude that:

$a= -1 \\b= 4 \\c= -8$

Substitute the values for a and b into the formula.

$x= \frac{-(4)}{2(-1)}$

Multiply in the denominator.

$x=\frac {-4}{-2}$

Divide.

$x=2$

This can also be determined from the graph. It is the x-coordinate of the vertex or the maximum/minimum. It divides the quadratic into 2 symmetrical halves.

8 0

3 years ago