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o-na [289]
3 years ago
9

23 girls have a mean height of 153cm

Mathematics
1 answer:
DanielleElmas [232]3 years ago
6 0

Answer:

Mean height of 159

Step-by-step explanation:

Add 153 and 165, then divide by 2 to find the average of 159.

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Is this multiplication? Can you also help me with the answer!?
vredina [299]

Answer:

84,375 m^2

Step-by-step explanation:

We need to find the surface area of the pyramid. The pyramid can be divided into 4 triangles and one square (the bottom).

Area of a triangle is 1/2*b*h where b is the base of the triangle and h is the height.

Area of a square is length times width.

Total area = 4\times(\frac{1}{2}\times 225 \times 75)+225\times225 = 84375 m^2

3 0
3 years ago
A savings account earns 5.32% interest in one year. If the account holds $4,978 for the entire year, about how much will it earn
Degger [83]

Answer:

264.8296, or 264.8 simplified.

Step-by-step explanation:

You would multiply 4,978 by 0.532, and you'd get 264.8.

3 0
3 years ago
Asriel says 2 times 2 is 4 Adrian says 2 times 3 is 6 Brittne says 2 times 5 is 4.Who is correct?​
amid [387]

Answer:

Asriel is correct because 2 times 2 is 4 and 2 times 3 is 6 and 2 times 5 is 10 so Asriel is correct.

4 0
2 years ago
Read 2 more answers
I need help on a math problem<br> 48w^3+128w^2+4w-1<br> divided by<br> 4w
raketka [301]
Divide 4w to every term separately.

\sf\dfrac{48w^3+128w^2+4w-1}{4w}

\sf\dfrac{48w^3}{4w}+\dfrac{128w^2}{4w}+\dfrac{4w}{4w}-\dfrac{1}{4w}

48/4 = 12
w^3/w = w^2
So our first term is 12w^2.

128/4 = 32
w^2/w = w
So our second term is 32w.

4w/4w = 1
Anything divided by itself is 1.

-1/4w, this can't be simplified further, so this is our last term.

So we have:

\sf 12w^2+32w+1-\dfrac{1}{4w}
4 0
3 years ago
Find the temperature in Celsius if the temperature is-31°F,using the formula F=9/5C+32
Nady [450]
F=9/5c+32
-31=9/5c+32
-63=9/5c
-35=c
8 0
2 years ago
Read 2 more answers
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