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Ann [662]
3 years ago
5

Delia drives 220 km in 2 hours. Calculate her average speed in km/hrs.

Mathematics
1 answer:
alexira [117]3 years ago
8 0
110 because avg speed is total distance over total time
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In which direction must the graph of Rx) = 7% be shifted to produce the graph of g(x) = 7% + 7?
joja [24]

Answer:

B. Up

Step-by-step explanation:

If you alter a function by adding or subtracting a constant to the end of the expression, then the graph will slide up (down if subtracting) If you alter the x value by altering the expression in close to the x with addition or subtraction the graph will slide left or right.

Vertical translations (sliding up or down) go up when adding and down when subtracting as you would expect it to.

Horizontal translations are the oppoof what you might expect. A (x-h) will shift the graph right, while a (x+k) will shift the graph left.

The answer to your question is UP.

5 0
2 years ago
The formula for electrical power is P, is P= I^2 R, where I is current and R is resistance. The formula for I in terms of. P and
Butoxors [25]

Ans

I = sqrt(P/R)

Step-by-step explanation:

You divide both sides by R first

P/R = I^2 R/R

So,

I^2 = P/R

take the square root of both sides

I = sqrt(P/R)

7 0
3 years ago
Read 2 more answers
I need help with this please.<br><br>f(x)=x+5<br>x=​
aleksandrvk [35]

Answer:

X= - 5

Step-by-step explanation:

8 0
3 years ago
PLZ help me fast 2 mins left
jek_recluse [69]

Answer:

\sqrt{-5}=i\sqrt{5}

\sqrt{-25}=5i

Step-by-step explanation:

i is an imaginary unit, this means

i^2=-1

Rewrite -5 as 5\cdot (-1)=5\cdot i^2,

then

\sqrt{-5}=\sqrt{5i^2}=\sqrt{5}\cdot \sqrt{i^2}=\sqrt{5}\cdot i=i\sqrt{5}

Rewrite -25 as -25=25\cdot (-1)=25\cdot i^2,

then

\sqrt{-25}=\sqrt{25\cdot i^2}=\sqrt{25}\cdot \sqrt{i^2}=5\cdot i=5i

6 0
3 years ago
Richard claims that the value of the expression 23x2+173x+12 is sometimes negative. Which of these values of x supports Richard'
Talja [164]
The correct answer is B.
6 0
3 years ago
Read 2 more answers
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