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2 years ago

How many odd numbers are there between twenty and forty?

Mathematics

1 answer:

inna [77]2 years ago

5 0

Answer:

Total 10

Step-by-step explanation:

21. 23, 25, 27, 29, 31 , 33, 35, 37, 39.

hope this helps you

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John invests $3,000 into an account that earns 4.7% interest compounded quarterly. Write an equation and us it to find the value

kow [346]

Answer:

The equation is;

A = 9,000(1 + 0.047/4)^48

The value is

$15,767.28

Step-by-step explanation:

Here we want to find the value of an investment after 12 years, given its interest rate;

Mathematically the amount which is the value would be;

A = I( 1 + r/n)^nt

Where A is the amount in 12 years

I is the initial amount invested = $3,000

r is the interest rate = 4.7% = 4.7/100 = 0.047

n is the number of times interest is compounded yearly = 4 since it is quarterly ( once every three months)

t is the number of years = 12

Substituting these values, we have

A = 9,000(1 + 0.047/4)^(12^4)

A = 9,000(1 + 0.047/4)^48

The above is the expression

A = 9,000(1 + 0.01175)^48

A = 9,000(1.01175)^48

A = $15,767.28

8 0

3 years ago

Which basic geometric figure is labeled as

boyakko [2]

The symbol shown is a ray. A ray has an endpoint and includes all points on a line in only one direction. That is why the symbol above the letters XY has a single arrowhead. Ray XY starts at point X; it includes all points on line XY between X and Y, and also point Y and all points on the line past Y. It does not include any point past X going in the direction from Y to X.

5 0

3 years ago

6. Find the surface area of the triangular prism. 6 cm 8cm 8cm 5 cm 10 cm

Ivenika [448]

Answer:

246m²

Step-by-step explanation:

use the formula for the surface area and substitute the values

8 0

3 years ago

Are 3x²y and -8xy² like terms? How do you know?

julsineya [31]

Answer:

No.

Step-by-step explanation:

Since 3x²y has an x² and -8xy² has a y², they are not like terms. Since they are different terms, you cannot add them together.

7 0

3 years ago

Find the surface area of the prism below.

CaHeK987 [17]

Answer:

the surface area of the prism = 378 cm³

Step-by-step explanation:

Let S be the surface area of the prism

B be the base of the prism

h be the height of the prism

T be the lateral surface area of the prism

_______

Formula

S = 2B + T

_________

$\begin{aligned}B &=\frac{9 \times 12}{2} \\&=54\end{aligned}$

$\begin{aligned}T &=7,5 \times(9+12+15) \\&=270\end{aligned}$

$\begin{aligned}S &=2 B+T \\&=2 \times(54)+270 \\&=378\end{aligned}$

5 0

2 years ago