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sergey [27]
3 years ago
6

Here is an expression: 3+ t2 1 Evaluate the expression when t is 2​

Mathematics
1 answer:
Zanzabum3 years ago
4 0

Step-by-step explanation:

it would be 45 if you add it as 21 but you didn't put another symbol hope I can help :)

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I need help with this.Thanks!
irina1246 [14]
Note that when x increases by 1, y increases by 4.  Thus, the slope of the linear function representing this table is 4.  What is the y-intercept?  Note that as y decreases by 4, x decreases by 1.  We have y = 1 and want the y-intercept, (0,y).  Start with y=1 and subtract 4; the result is -3.  So the y-intercept is (0,-3):

y = 4x - 3  (answer)
3 0
3 years ago
Aiden brought chocolate and vanilla cupcakes to school for his birthday. 12 students picked a vanilla cupcake and 88 students pi
White raven [17]

Answer:

the percentage is 12%

Step-by-step explanation:

Given that

The 12 students picked up the vanilla cupcake

And, 88 students picked up the chocolate cupcake

We need to find out the percentage of the students picked up a vanilla cupcake

So, the percenatge is

= (12) ÷ (12 + 88) × 100

= 12 ÷ 100 × 100

= 12%

Hence, the percentage is 12%

8 0
3 years ago
A student received an 82% on an exam. If there were 50 questions on the exam, which ratio would show the number of questions ans
solmaris [256]
Hello!

To solve this we have to find what 82% of 50 is

So we do 50 * 0.82 where 0.82 is 82% as a decimal.

This gives us 41

So the answer is D

Hope this helps!
8 0
3 years ago
Read 2 more answers
What is the probability that a value falls in the interval μ ± 2σ, that computes the probability P(-2 < Z < 2). Round to f
bija089 [108]

Answer:

0.9544    

Step-by-step explanation:

P(-2 < Z < 2) means that Z has mean 0 and standard deviation 2.

P(−2 < Z < 2) = F(2) - F(-2)

Using the Z - table,

F(2) = 0.9772

and F(-2) = 0.0228

Thus,

P(−2 < Z < 2) = 0.9772 - 0.0228 = 0.9544

This means that data within two standard deviation is 95%.

8 0
3 years ago
What one of these numbers is not like the others? 25,16,49,63,81
labwork [276]

16, because all the other numbers are odd and 16 is even

8 0
3 years ago
Read 2 more answers
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