Ask question

Ask question

All categories

3 years ago

12

PLZZZZ HELPPPPP QUESTION 14 R

1 answer:

TiliK225 [7]3 years ago

5 0

$|\overrightarrow{WX}|=\sqrt{(6-6)^2+(3-(-3))^2+(4-6)^2}=\sqrt{0^2+6^2+(-2)^2}=\\\\=\sqrt{0+36+4}=\sqrt{40}=\sqrt{4\cdot10}=\sqrt{4}\cdot\sqrt{10}=\boxed{2\sqrt{10}}$

Answer a)

You might be interested in

A tennis player keeps track of the number of successful first serves he makes. During the first 8 service points of a game, only

Andru [333]

Answer:

He needs 7 more consecutive successful first serves to raise his first serve percentage to 60%.

Step-by-step explanation:

After n consecutive serves, his total number of serves is going to be n+8, since he has already served 8 times. In the best case, his number of successful first serves is n+2.

His percentage of succesful first serves is the division of the number of succesful first serves divided by the total number of serves. So

$P = \frac{n+2}{n+8}$

We want $P = 0.60$ . So

$0.6 = \frac{n+2}{n+8}$

$n+2 = 0.6*(n+8)$

$n + 2 = 0.6n + 4.8$

$n - 0.6n = 4.8 - 2$

$0.4n = 2.8$

$n = \frac{2.8}{0.4}$

$n = 7$

He needs 7 more consecutive successful first serves to raise his first serve percentage to 60%.

5 0

3 years ago

Which of the following is a valld conclusion for the quadratic equation?

HACTEHA [7]

Answer:

x - 4 = 0 and x - 2 = 0

Step-by-step explanation:

$x^2-6x+8=0\\(x-4)(x-2)=0$

5 0

2 years ago

Read 2 more answers

Urpi wants to buy towels online. There are two stores with the kind of towel she wants. The first store charges $20 per towel, a

Kamila [148]

Answer:

1 A the first store.

2. B The second store.

Step-by-step explanation:

1. The store with the dearest towel is The First one ( $20 compared with $18).

2. The equation for the cost in the first store is P = 20n + 25.

The cost in the second store is given by P = 18n + 35.

For 15 towels first store charges:

20 * 15 + 25 = $325.

Second store charges:

18 * 15 + 35 = $305.

4 0

3 years ago

Read 2 more answers

3(2−4)=−30 step by step

Margarita [4]

3•2-3•4
6-12=-30
-6=-30
false

6 0

3 years ago

Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

iragen [17]

Answer:

36.25

Step-by-step explanation:

The three in 20.342 has a value of 0.3, so a three one hundred times greater would be 0.3 times 100, which is 30.

Next, find the choice that has a three in the ten's place, which represents a 30.

5 0

2 years ago