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2 years ago

Which number is prime? 4 , 9, 21 , 23

Mathematics

2 answers:

Ivanshal [37]2 years ago

8 0

answer:

23 is prime because it can only be divided by 1 and itself.

Lina20 [59]2 years ago

7 0

Answer: 23

Step-by-step explanation:

No two number can multiply into 23 besides 23 times 1

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P(n)=485n-14065 find slope

11111nata11111 [884]

Answer:

the slope is 485

Step-by-step explanation:

The slope form of a line is y=mx+b, or in this case, p(n)=mn+b. The coefficient of n is 485, giving you the slope.

5 0

2 years ago

BC has a midpoint at M(6, 6). Point C is at (2, 10). Find the coordinates of point B.

agasfer [191]

Answer:

The coordinates of B are (10,2)

Step-by-step explanation:

Hi there!

We know that BC has a midpoint M, with the coordinates (6,6), and the endpoint C, with coordinates (2, 10)

We want to find the coordinates of point B

The midpoint formula is $(\frac{x_1 + x_2}{2}, \frac{y_1+ y_2}{2})$ , where $(x_1, y_1)$ and $(x_2 , y_2)$ are points. In this case, the point C has the values of $(x_1, y_1)$ , and B has the values of $(x_2 , y_2)$

We know that coordinates of M equal $(\frac{x_1 + x_2}{2}, \frac{y_1+ y_2}{2})$

In other words,

$\frac{x_1 + x_2}{2} = 6\\ \frac{y_1+ y_2}{2}=6$

Let's plug 2 for $x_1$ and 10 for $y_1$

So:

$\frac{2 + x_2}{2} = 6\\ \frac{10+ y_2}{2}=6$

Multiply both sides by 2

${2 + x_2} = 12\\{10+ y_2} =12$

Subtract 2 from both sides in the first equation to find the value of $x_2$ :

$x_2=10$

Now, for the second equation, subtract 10 from both sides to find the value of $y_2$

$y_2=2$

Now substitute these values for $(x_2, y_2)$

$(x_2, y_2)=(10,2)$

So the coordinates of point B are (10, 2)

Hope this helps!

3 0

2 years ago

Daily plans to eat 1/5 of his came burgh his 4 friends 1 him to share the rest equally show how daily in his friends can each eq

fomenos

They will get 3/8 of the buger

3 0

3 years ago

How you will go about preparing yourself to confidently teach numeracy?

Olegator [25]

In preparation of yourself in having to teach numeracy, it is best to substantiate if learning the numeracy will have benefits or advantages, such as having to help other people or even empower them as an adult people learning and think of ways how will this could be important to them.

8 0

2 years ago

Divide $70 into 1:2:4

irina1246 [14]

$70 into 1:2:4

1+2+4 = 7
7 parts= $70
1 part = $70/7 ($70 divided by 7)
1:2:4 = $10:$20:$40

answer= $10:$20:$40

Hope this helps!! :)

5 0

3 years ago