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3 years ago

If the sum of two prime numbers is 999 what is their product

Mathematics

1 answer:

abruzzese [7]3 years ago

7 0

999.999 because if one is 99 the other would make it 9999

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Can someone simplify? I'm confused-

Vladimir79 [104]

(64/56)^2 x (1/343) x 7^-9

=9.44x10^-11

3 0

3 years ago

How to turn 1/4 ÷9\10 into a mixed fraction?

elena-14-01-66 [18.8K]

Divide: 1
4
: 9
10
= 1
4
· 10
9
= 1 · 10
4 · 9
= 10
36
= 5
18

To divide one fraction by another, invert (turn upside-down) the second fraction, then multiply.

5 0

3 years ago

Wild cats scored a total of 123 points. 67 points were scored in the first half. How many were scored in the second half?

Dima020 [189]

123-67=56 points. So, subtract and you get 56 points in the second half

7 0

3 years ago

Please help!! x = 2 - 3 cos t, y = 1 + 4 sin t in rectangular form?<br><br> thank you! :)

sukhopar [10]

Answer:

$\frac{(x-2)^2}{9}+\frac{(y-1)^2}{16}=1$

Step-by-step explanation:

$x=2-3\cos(t)$

$y=1+4\sin(t)$

Let's solve for $\cos(t)$ in the first equation and then solve for $\sin(t)$ in the second equation.

I will then use the following identity to get right of the parameter, $t$ :

$\cos^2(t)+\sin^2(t)=1$ (Pythagorean Identity).

Let's begin with $x=2-3\cos(t)$ .

Subtract 2 on both sides:

$x-2=-3\cos(t)$

Divide both sides by -3:

$\frac{x-2}{-3}=\cos(t)$

Now time for the second equation, $y=1+4\sin(t)$ .

Subtract 1 on both sides:

$y-1=4\sin(t)$

Divide both sides by 4:

$\frac{y-1}{4}=\sin(t)$

Now let's plug it into our Pythagorean Identity:

$\cos^2(t)+\sin^2(t)=1$

$\frac{x-2}{-3})^2+(\frac{y-1}{4})^2=1$

$\frac{(x-2)^2}{(-3)^2}+\frac{(y-1)^2}{4^2}=1$

$\frac{(x-2)^2}{9}+\frac{(y-1)^2}{16}=1$

5 0

2 years ago

Read 2 more answers

The expression 2(l + w) is used to calculate the perimeter of a rectangle, where l is length and w is width. If the length is Fr

Art [367]

Answer:

Perimeter = 1 unit

Step-by-step explanation:

$length \ is \ a \ fraction \ 2 \ over \ 3 = \frac{2}{3}\\\\Width \ is \ a \ fraction \ 1 \ over \ 3 = \frac{1}{3}\\\\Perimeter = 2 ( l + w)\\$

$= 2 \times (\frac{2}{3} + \frac{1}{3}) \\\\=2 \times (\frac{3}{3})\\\\= 1 unit$

5 0

3 years ago