All categories

3 years ago

Can you please solve this? I appreciate it thanks!

Mathematics

1 answer:

Ratling [72]3 years ago

5 0

About 58 campers will be at the camp because, 200-25=175. Then 175/3=58.3 which rounds to 58.

You might be interested in

Zoeys's pool is shaped like a square with an area of 150 square feet. What is the approximate side length of her pool?

Ksju [112]

I think the exact length is 37.5 Feet

4 0

3 years ago

Prove that A is idempotent if and only if AT is idempotent. Getting Started: The phrase "if and only if" means that you have to

Otrada [13]

Answer:

It is proved that A is idempotent if and only if $A^T$ is idempotent.

Step-by-step explanation:

Case-1 : First assume that A is idempotent that is, $A^2=A$ . We have to show by using this $(A^T)^2=A^T$ . So,

$(A^T)^2=A^T\times A^T=(A\times A)^T=(A^2)^T=A^T$

Thus $A^T$ is idempotent.

Case-2 :

Conversly, assuming $A^T$ is idempotent, thet is, $(A^T)^2=A^T$ . We have to show $A^2=A$ . So,

$A^2=A\times A=(A^T)^T\times(A^T)^T=(A^T\times A^T)^T$

$=((A^T)^2)^T=(A^T)^T=A$

Thus A is idempotent. Hence proved.

3 0

3 years ago

Question 9

Wittaler [7]

Answer:

Part A) Barbaroid will be executed

Part B) 75 more globin soldiers

Step-by-step explanation:

The army sizes of ORC leaders are

normally distributed with a mean of 5600 goblin soldiers and a standard deviation of 750 goblin soldiers.

The rule is that, if an Orc Leader shows up with an army of a z-score lower than

-1.5, he is immediately executed.

We want to determine whether Lord Barbaroid, an Orc Leader, who appears with an army of 4400 goblin soldiers,

based on the Orc Rule, will he be executed or not.

We find the z-score corresponding to 4400 using

$z = \frac{x - \mu}{ \sigma}$

We substitute x=4400 , the standard deviation and the mean to get:

$z = \frac{4400 - 5600}{750} = - 1.6$

Since Lord Barbaroid's z-score , -1.6 is less than -1.5 he will be executed.

Part B)

We want to find how many more goblin soldiers Lord Barbaroid have needed in order to NOT be executed and meet that Z-Score.

So we need to find the number of globin soldiers that corresponds to -1.5.

$- 1.5 = \frac{x - 5600}{750}$

$750 \times - 1.5 = x - 5600$

$- 1125 = x - 5600 \\ x = 5600 - 1125$

$x = 4475$

Therefore Barbaroid needed 4475-4400=75 more globin soldiers.

4 0

3 years ago

Here is a rectangle work out the size of angle x and y

Anika [276]

Answer:

y = 67°

Step-by-step explanation:

angles of rectangle are equal and 90°.

So,

23+y = 90

so, y = 67°

7 0

3 years ago

A pan of brownies is 7/10 full. Tyreese buys 2/5 of the brownies.

vodka [1.7K]

Answer:

the answer is 9/10

Step-by-step explanation:

I cant draw sorry(┬┬﹏┬┬)╰(*°▽°*)╯

5 0

3 years ago