Simplify the expression.

2 answers:

7 0

When you have like bases, you multiply the exponents together and put it over the base.

$2^{2} 2^{3} = 2^{2*3} = 2^{6}$

Mice21 [21]3 years ago

7 0

Hey there!!

The answer you're looking for is ( D ) because in exponents, the rule is..

║If the bases are the same, add the exponents║

2 ^2 * 2 ^3 = ? (Bases are the same, add the exponents)

Answer: D = 2^5

║Hope that helps :)║

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If a baking tray is 700mm by 600mm, how many of 25cm in diameter can fit into the baking tray?

Trava [24]

1cm=10mm
700mm= 70cm
600mm=60cm

70cm:25cm=2,8 - on length only 2 fit into

60cm:25=2,4 - on width only 2 fit into

Two 25cm in diameter fit into the baking tray.

7 0

3 years ago

Solve the System of Equations

soldi70 [24.7K]

Answer:

Equations: $x+y=80\,,\,2x+4y=216\,\,$

number of chickens = 52

number of goats = 28

Step-by-step explanation:

Given: A small ranch has chickens and goats

Total number of heads = 80

Total number of legs = 216

To find: number of chickens and goats

To draw: the graph

Solution:

Let x denotes number of chickens and y denotes number of goats.

According to the question,

$x+y=80\,\,(i)\\2x+4y=216\,\,(ii)$

From (i), put $x=80-y$ in (ii)

$2(80-y)+4y=216\\160-2y+4y=216\\2y=216-180\\2y=56\\y=\frac{56}{2}=28$

Put $y=28$ in equation (i)

$x+28=80\\x=80-28=52$

So,

number of chickens = 52

number of goats = 28

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6 0

3 years ago

When Ricardo was 9 years old, he was 56 inches tall. By age 12, he had increased his

Schach [20]

Answer:

He is 62.72 inches tall now

Step-by-step explanation:

the twelve over 100 is the percentage, he increased by 12 percent. and the x over 56 is the new value (x) over the old value. We get 6.72 so we add that to 56 to get 62.72.