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krek1111 [17]
3 years ago
5

Which expression is equivalent to 16​

Mathematics
1 answer:
kumpel [21]3 years ago
5 0

Answer:

Expression 6 is equal to 16.

Expression 2 is equal to 16.

Expression 3 is Equal to 16

Step-by-step explanation:

Allow me to explain exponent rules.

1. WRONG: 1^16; a.k.a. One to the Sixteenth Power:

What do we know about exponsnts? Well, the number of the exponent denotes how many times you're raising the coefficient BY ITSELF. For example squaring 2 (2^2) gives you 4, because are multiplying two 2's.

In THIS case, you should also do well to remember that 1 multiplied by ANY number IS that number. . .so, if we were to take 1^16th power, we're essentially multiplying 1*1*1*1*1*1*1*1*1*1*1*1*1*1*1*1. . . .which just equals 1.

2. CORRECT: 2^4; a.k.a. Two to the Fourth Power.

Using the method we know above. 2^4 = 2*2*2*2.

If it helps, just imagine you're squaring the number TWICE and multiplying those values together. 2^2 = 4, 2^2=4, 4*4= 16.

Or you can do it the classic way. 2*2=4*2=8*2=16.

Either way, it's correct.

3. CORRECT: 4^2; a.k.a. Four to the Second Power; a.k.a. Four Squared.

We just did this in the previous problem, remember? The last step was 4*4=16, right. Well, this is exactly what four squared means! Four times itself is 4*4, which equals 16.

4. WRONG: 8^2; a.k.a. Eight to the Second Power; a.k.a. eight squared.

Incorrect. Remember, you're multiplying the coefficient by ITSELF, and the number of times you do this is determined by the exponent. 8^2 = 8*8, which equals 64, not 16.

5. INCORRECT; 16^0; a.k.a. Sixteen raised to the zero-th power.

A rule you must remember is that ANYTHING raised to the 0th power is always equal to 1. 16^0=1, not 16.

6. CORRECT; 16^1; a.k.a. Sixteen to the first power

When you have Sixteen to the first power, you're essentially saying "I'm not doing anything to you." Sixteen to the power of one, which essentially means you're leaving it alone, is just 16.

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H(t) = -16t^2 + 40t +120
stira [4]

Answer:

h(t) = -16t^2 + 40t + 120

h(t) = -16(t^2 - 5/2*t) + 120

h(t) = -16(t^2 - 5/2*t + (5/4)^2 - (5/4)^2) + 120

h(t) = -16(t^2 - 5/2*t + (5/4)^2 - 25/16) + 120

h(t) = -16(t^2 - 5/2*t + (5/4)^2) + 120 + 25

h(t) = -16(t - 5/4)^2 + 145

The rock needs 5/4 = 1.25 seconds to travel to the highest point wich is 145 m high.


6 0
3 years ago
Find arc length CDE geometry ​
Simora [160]
I don’t think you can calculate the arc without the radius. All I know is that the angle is 110 degree
4 0
3 years ago
Please help, answer asap
sergejj [24]
Since it is 1/5 of original length (13cm)
13cm * 1/5 = 2.6 cm
7 0
2 years ago
Geo: Worth 50 points and I will give brainliest to right answer! #24
Sindrei [870]

1. ∠1 ≅ ∠3                                              1. given

  ∠1 and ∠6 are supplementary angles

  ∠3, ∠4, and ∠5 are supplementary angles

2. m∠1 = m∠3                                        2. definition of congruency

3. m∠1 + m∠6 = 180°                             3. definition of supplementary angles

   m∠3 + m∠4 + m∠5 = 180°

4.  m∠3 + m∠4 + m∠5 = m∠1 + m∠6     4. transitive property

5.  m∠3 + m∠4 + m∠5 = m∠3 + m∠6     5. substitution property

6.  m∠4 + m∠5 = m∠6                             6. subtraction property of equality


6 0
2 years ago
Fiona wrote out the description of each step for her multiplication of the binomial and trinomial (2x – 3)(5x2 – 2x + 7).
Valentin [98]

Answer:

Step 2

Step-by-step explanation:

Fiona did mistake step 2.

Use the distributive property to multiply -3 times each term in the trinomial.

The correct result is

-3(5x^2 - 2x + 7) = -15x^2 + 6x - 21

Fiona written -6x instead of + 6x.

That's the error.

The answer is "Step 2"

Hope you will understand the concept.

Thank you.

5 0
3 years ago
Read 2 more answers
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