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siniylev [52]
4 years ago
6

This is to help my cousin ​

Mathematics
1 answer:
sasho [114]4 years ago
8 0

Answer:

What is the question?

Step-by-step explanation:

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A (blank) is the nonnegative Square root of a number
AnnyKZ [126]

Answer:

principal square root

Step-by-step explanation:

Let x^2=a.

Then x=\pm\sqrt{a}

We have a negative square root for x, which is x=-\sqrt{a} and a nonnegative square root,which is x=+\sqrt{a}

The nonnegative square root is callled the principal square root .

Therefore the best complete to the statement;

A -------- is the nonnegative Square root of a number, is principal square root.

7 0
3 years ago
Solve the simultaneous equations C^2+d^2=5 and 3c+4d=2
Naily [24]
If 3c+4d=2 then c=(2-4d)/3
And if you put that into the other equation
{\frac{2 - 4d}{3}}^{2}  +  {d}^{2}  = 5
Then you multiply everything by 3, getting

{(2 - 4d)}^{2}  + 3 {d}^{2}  = 15
And then

2 - 4d +  \sqrt{3} d =  \sqrt{15}
Leaving
d( \sqrt{3}  - 4) =  \sqrt{15}  - 2
I dont have a calc with me right now but you just pot this into the calculator:
d =  \frac{ \sqrt{15} - 2 }{ \sqrt{3}  - 4}
And when you get the number you insert it into the nest eqation to get c

c =  \frac{2 - 4d}{3}
So basically

c =  \frac{2 - 4 \frac{ \sqrt{15}  - 2}{ \sqrt{3}  - 4} }{3}







6 0
3 years ago
Read 2 more answers
What is the approximate area of the shaded sector in the circle shown below
Reil [10]

Answer:

Correct option is B.

Step-by-step explanation:

Given the radius of circle and the angle in sector we have to find the area of shaded region i.e minor sector.

                   

                   

∴ Area of sector is

Correct option is B.

3 0
3 years ago
225 students in my school, or 15%, have blond hair. What is
White raven [17]

Answer:

1500 students

Step-by-step explanation:

Divide the number of blonde students by the percentage they are of the school.

225/0.15 = 1500

The total number of students in your school is 1500.

6 0
3 years ago
Read 2 more answers
A fitness club holds an open house for new members. The club expects 6,500 people to sign up for gym membership. If there is a p
yuradex [85]

Answer:

Least number of people: 6,240

Greatest number of people: 6760

Step-by-step explanation:

4% of 6500 is 260

6500 - 260 = 6240

6500 + 260 = 6760

3 0
3 years ago
Read 2 more answers
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