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Airida [17]
3 years ago
14

(7+√5)√5-(7+√5)7 how to solve this question​

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
3 0

Answer:

-44

Step-by-step explanation:

<u><em>Using distribute property of multiplication</em></u>

=> 7\sqrt{5} + (\sqrt{5} )^2-49-7\sqrt{5}

(7\sqrt{5} will be cancelled with each other)

=> 5 - 49

=> -44

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A farmer wants to put a fence around a garden in the shape of a square. The fence posts are placed every 2 meters. One side of t
zzz [600]

Answer:

The farmer would need 80 posts.

Step-by-step explanation:

If one side of the garden is 10m long, and the garden is a square, we can assume that all 4 sides will be 10m. That makes it 40m in total. Times 40×2 and you get 80.

6 0
3 years ago
Simplify the expression completely. 7b+3(4b−2)+6÷3
Karo-lina-s [1.5K]

Answer:

19b-4

Step-by-step explanation:

7b+3(4b-2)+6÷3

Bracket comes first so we distribute 3 over the terms in the bracket

= 7b + 12b -6 +6 ÷ 3

First we solve division

= 7b + 12b -6 +6 ÷ 3

= 7b + 12b -6 +2

= (7b+12b)+(-6+2)

= 19b -4

This can't be simplified further as it can't be solved anymore

4 0
3 years ago
Read 2 more answers
The mean age of swimers for all of these teams is 10. what does a large mad tell you.eade help​
aev [14]
Answer: Larger the MAD tells us that the ages of swimmer are far from the mean age. Thus means is not a relevant indicator for the data.
Step-by-step explanation:
We know that the mean absolute deviation (MAD) helps to know whether the mean of a data is a worthy indicator for the data values .
The larger the MAD tells us the values are spread out far from the mean .
Also, larger the MAD makes the mean less worthy as an indicator of the data elements within the data set.
8 0
3 years ago
What's 89x50 equaled too
Norma-Jean [14]
The answer is...4450
5 0
3 years ago
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A pizza place offers 4 different cheeses and 10 different toppings. In how many ways can a pizza be made with 1 cheese and 4 top
mylen [45]

Answer:

Step-by-step explanation:

Assuming the toppings don't have to be the same

4*10*10*10*10=4000

If the toppings have to be different:

4*10*9*8*7=20160

8 0
3 years ago
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