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REY [17]
2 years ago
5

Which ones are equalivilent to 2.5 10/-4 10/4 -10/-4 -5/-2 -5/2 5/2

Mathematics
1 answer:
Musya8 [376]2 years ago
3 0

Answer:

10/4, -10/-4, -5/-2, and 5/2

Step-by-step explanation:

These are equivalent.

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You read 50 pages in an hour your sister reads 40 pages in an hour how many more pages did you read than your sister reads in 1/
Elena-2011 [213]

To start to figure this problem out, we can first figure out how many more pages you read in an hour compared to your sister.


50 - 40 = 10, so you read 10 more pages in 1 hour.


Now we have to figure out how much more you would read in 1/2 an hour. Since 1/2 an hour is 1/2 of an hour, we can divide 10 by 2 to figure out how many more pages you read in an hour compared to your sister. 10 divided by 2 is 5, so you read 5 more pages every half hour.

6 0
3 years ago
What is the total surface area of the square pyramid?​
sleet_krkn [62]

Answer: Hello Luv......

380  (There is no picture i'm sorry,)

Step-by-step explanation:

A = L + B = a2 + a√(a2 + 4h2))

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6 0
3 years ago
Find and sketch the domain of the function. f(x,y)=√(4-x^2-y^2) +√(1-x^2)<br>​
elena55 [62]

Answer:

Hello

Step-by-step explanation:

The domain is limited with 2 lines parallel: -1 ≤ x ≤ 1

and the disk ? (inside of a circle) of center (0,0) and radius 2

dom\ f(x,y)=\{(x,y) \in \mathbb{R} ^2 | \ -1\leq x \leq -1\ and \ ( -\sqrt{4-x^2}  \leq \ y  \leq \sqrt{4-x^2}\  ) \ \}\\

3 0
2 years ago
A dog is standing 5ft from the base of a tree trying to catch a cat that is 16 ft up in the tree. What is the angle of elevation
evablogger [386]

Answer:

72.64°

Step-by-step explanation:

Tan θ 16/5

θ= tan-1 (16/5)

=72.64°

3 0
3 years ago
A high school sewing club has 11 members. In how many different ways can they choose a president and vice president?
lorasvet [3.4K]
Since the order matters  Person A and B can be chosen as AB (A pres B vice pres) or BA (B president  A Vice president)

When the order matters we are talking about permutations. How many permutations of 11 taken 2 at a time are there.
It can be written like this 11nPr 2
It means start at 11 and multiply by the next lower number 
11 x 10 = 110 ways they can choose.
Extension of the concept:
If there had been three positions President, Vice President, and Treasurer
then it would be 11nPr3  or 11 x 10 x 9
Once again the answer to your problem is 110.
6 0
3 years ago
Read 2 more answers
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