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nataly862011 [7]
4 years ago
11

What is f if 7 = f(-5)?

Mathematics
1 answer:
Verizon [17]4 years ago
7 0

Answer:

Step-by-step explanation:

f

(

−

5

)

=

−

2

Explanation:

To find

f

(

−

5

)

, you start with the function,

f

(

x

)

:

f

(

x

)

=

−

x

−

7

Substitute

−

5

everywhere that you see an x:

f

(

−

5

)

=

−

−

5

−

7

minus a minus is a plus:

f

(

−

5

)

=

5

−

7

Simplify:

f

(

−

5

)

=

−

2

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What is the 30th term of the linear sequence below?<br><br> -5,-7,-9,-11,-13....
adelina 88 [10]

Answer:

-63

Step-by-step explanation:

This arithmetic progression

The formula is a+(n-1)d

a means the first value

n is the nth term

d is the difference

So a is -5

n is 30

d is -2

So let's substitute

-5+(30-1)-2

-5+(29)-2

-5-58

-63

Therefore the final answer is-63

Just follow the step and the general formula, you will get your final answer

3 0
3 years ago
6/2=4/p= Can u help me with this math problem
vodomira [7]
I hope this helps you


6/2=4/p


3=4/p


p=4/3

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5 0
4 years ago
In a random sample of 5 residents of the state of Texas, the mean waste recycled per person per day was 1.9 pounds with a standa
sammy [17]
<h2>Answer with explanation:</h2><h2 />

The confidence interval for population mean is given by :-

\overline{x} \pm\ t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 5, since n<30 , so the test we use here is t-test.

Sample mean : \overline{x}=1.9\text{ pounds}

Standard deviation: \sigma=0.89\text{ pounds}

Significance level : 1-\alpha:1-0.99=0.01

By using the standard normal distribution table , the critical value corresponds to the given significance level will be :-

t_{n-1,\alpha/2}=t_{5-1,0.01/2}=t_{4,0.005}=4.604

Now, the 99% confidence interval for the mean waste recycled per person per day for the population of Texas will be :-

1.9\pm\ (4.604)\dfrac{0.89}{\sqrt{5}}\\\\\approx1.9\pm1.832\\\\=(1.9-1.832,1.9+1.832)=(0.068,\ 3.732)

Hence, the 99% confidence interval for the mean waste recycled per person per day for the population of Texas  = (0.068, 3.732)

5 0
3 years ago
Which of the following is a polynomial?
Artyom0805 [142]

Answer:

C

Step-by-step explanation:

8 0
3 years ago
Karina pays $1.92 for pencil erasers. the erasers cost $0.08 each. how many erasers does she buy?
horrorfan [7]
1.92 / 0.08 = 24.....Karina bought 24 erasers
5 0
3 years ago
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