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Stells [14]
3 years ago
10

In the function y=2-5x, what is f(3)?​

Mathematics
1 answer:
kogti [31]3 years ago
5 0

Answer:

- 13

Step-by-step explanation:

\begin{gathered}y = 2 - 5x \\ f(x) = 2 - 5x \\ f(3) = 2 - 5(3) \\ f(3) = 2 - 15 = - 13\end{gathered}

y=2−5x

f(x)=2−5x

f(3)=2−5(3)

f(3)=2−15 = −13

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Find the H.C.F of 48,60 and 96. please no links . please step by step explanation​
krek1111 [17]

Answer:

Do you mean GCF?

Step-by-step explanation:

48, 60, and 96 all have a GCF of 12

12 x 4 = 48

12 x 5 = 60

12 x 8 = 96

6 0
3 years ago
4.) Pizza Hut has a sale. Two large one topping pizzas for $12.99 + tax (7%).
Ivahew [28]

Answer:

Tax=$0.91

Step-by-step explanation:

Tax=$12.99(.07)=$0.9093

Tax=$0.91

8 0
3 years ago
Read 2 more answers
What is equivalent to 4:3
kap26 [50]

Answer:

the answer is 6:8 or 9:12

Step-by-step explanation:

7 0
3 years ago
Let x = 6.
Mars2501 [29]

Put the value of x = 6 to the eqpression 5x² + x - 7:

5(6)² + 6 - 7 = 5(36) + 6 - 7 = 180 + 6 - 7 = 179

<h3>Answer: 179</h3>
5 0
3 years ago
Final exam scores are normally distributed with a mean of 74 and a standard deviation of 6. Approximately, what percentage of fi
notka56 [123]

Answer:

81.86%

Step-by-step explanation:

We have been given that final exam scores are normally distributed with a mean of 74 and a standard deviation of 6.

First of all we will find z-score using z-score formula.

z=\frac{x-\mu}{\sigma}

z=\frac{68-74}{6}

z=\frac{-6}{6}=-1

Now let us find z-score for 86.

z=\frac{86-74}{6}    

z=\frac{12}{6}=2        

Now we will find P(-1<Z) which is probability that a random score would be greater than 68. We will find P(2>Z) which is probability that a random score would be less than 86.

Using normal distribution table we will get,    

P(-1

P(2>Z)=.97725  

We will use formula P(a to find the probability to find that a normal variable lies between two values.

Upon substituting our given values in above formula we will get,

P(-1

P(-1

Upon converting 0.81859 to percentage we will get

0.81859*100=81.859\approx 81.86

Therefore, 81.86% of final exam score will be between 68 and 86.  


3 0
3 years ago
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