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Katen [24]
2 years ago
5

A piece of wire is 30 m long. What will be the length of each side if the wire is used to form

Mathematics
1 answer:
Mariulka [41]2 years ago
7 0

Answer:

7.5 m

10 m

Step-by-step explanation:

i) 30 m ÷ 4 = 7.5m

iii) 30m ÷ 3 = 10m

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Three students performed a science experiment using salt and a beaker. The beaker contained 530.2 grams of salt before the exper
anzhelika [568]
We are subtracting 3 * 47.36 from 530.2

3 * 47.36 = <span>142.08
</span>
530.2 - 142.08 = <span>388.12

Your answer should be </span><span>388.12 grams left. Hope this helps!</span>
3 0
3 years ago
Read 2 more answers
In order to test for the significance of a regression model involving 3 independent variables and 47 observations, the numerator
matrenka [14]

Answer:

The correct option is  C

Step-by-step explanation:

From the question we are told that

     The number of independent variables is  n =  3

     The number of observation is  z =  47

     

Since n is are independent variables then their degree of freedom is  3

   The  denominator(i.e z) degrees of freedom is evaluated as

            Df(z) =  z - (n +1)

          Df(z) =  47 - (3 +1)

          Df(z) =  43

So for the numerator (n) the degree of freedom is  Df(n) = 3

So for the denominator(i.e z) the degree of freedom is  Df(z) = 43

4 0
3 years ago
Can someone help with this question?​
Marizza181 [45]
Nooooooo sorry. Can’t
5 0
3 years ago
2x + 5y + 30 = 0 The point ( 5/2 , y) is a solution to the equation shown. What is the value of y? A) -7 B) -5 C) 0 D) 5
Zigmanuir [339]

Answer:

A) -7

Step-by-step explanation:

2x + 5y + 30 = 0

Let x = 5/2

Substitute into the equation

2(5/2) +5y +30 =0

5+5y+30=0

Combine like terms

35 +5y =0

Subtract 35 from each side

35-35 +5y = -35

5y=-35

Divide by 5

5y/5=-35/5

y = -7

6 0
3 years ago
(x^3 + y^3)/(x - y) divide the polynomials and show your work please.
UkoKoshka [18]
Please see attached.

I hope this helps.

6 0
3 years ago
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