1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alchen [17]
3 years ago
10

PLEASE HELP! URGENT! WILL GIVE BRAINLIEST!

Mathematics
1 answer:
alexandr402 [8]3 years ago
5 0
1. The answer is 1. To get this answer, substitute x=3 into the function and solve for f(x)

2. The answer is 12. Substitute -5 in place for f(x) and isolate and solve for x.

**Please mark this answer as Brainliest and leave a Thanks if I helped :)
You might be interested in
If you if 3 1/2 pounds of bananas cost $1.96, how much would one pound cost?.
rjkz [21]
Basically divide 1.96 with 3/1/2 and 7/2 is the improper of 3/1/2

5 0
3 years ago
A reporter collects a random sample of 50 runners from all the runners who finished the Cherry Blossom Ten Mile Run in 2009 and
goldenfox [79]

Answer:

Option D

Step-by-step explanation:

A reporter collects a random sample of 50 runners from all the runners who finished the Cherry Blossom Ten Mile Run in 2009 and constructs a 99% confidence interval for the true mean finish time to be (86.05, 99.38) minutes.

Assuming the reporter performed the calculations correctly, which of the following statements are appropriate interpretations of this confidence interval?

We can expect that 99% of confidence intervals created using the same method the reporter used will contain the true mean run time for runners of this race.

4 0
3 years ago
Ill give Brainliest!!!!!
Rus_ich [418]

Answer: The mass of solid a is 4800 grams

Step-by-step explanation:

Hi, to answer this question we have to apply proportions:

For solid b = 40.32 cm2 / 6912 grams

For solid a = 28 cm2 / x grams

Where x is the mass of solid a.

So:  

40.32 / 6912 = 28 / x  

x = 28 / (40.32 / 6912)

x = 4800 grams

The mass of a is 4800 grams

Feel free to ask for more if needed or if you did not understand something.

8 0
3 years ago
Read 2 more answers
you are rolling a 10-sided die with sides numbered 1-10. you keep rolling the die until you roll a prime number and then stop. l
evablogger [386]

The formula for E(x) would be SUM[ X(n)P(n)] from n = 1 to n = infinity until we get the prime number

In the given problem, a 10-sided die with 1-10 numbers is rolled until we get a prime number

Prime numbers between 1-10 = 2,3,5,7 (4 prime numbers)

Non - prime numbers = 1,4,6,8,9,10( 6 non-prime number)

Let X be the number of times the die is rolled

The probability of getting a prime =

P(Prime) = \frac{4}{10}

Now, the value of

E(X)=∑x.P(x) [ x-> {1, infinity}]

= P(1)X(1) +P(2)X(2)+P(3)X(3)+P(4)X(4)........+ P(n)X(n)

= 1.\frac{4}{10} + 2. \frac{6}{10}.\frac{4}{10} + 3.\frac{6}{10}.\frac{6}{10}\frac{4}{10} + 4. \frac{6}{10}.\frac{6}{10}.\frac{6}{10}.\frac{4}{10}.......

Hence, this is the value of E(x)

To learn more about Prime number, here

brainly.com/question/9315685

#SPJ4

4 0
2 years ago
The components of vector are given as follows: ax = +6.1 ay = -8.6 the angle measured counterclockwise from the x-axis to vector
r-ruslan [8.4K]

The tangent of the angle is

... tan(α) = ay/ax = -8.6/6.1

Then the angle (measured CCW from +x) is

... α = arctan(-86/61) ≈ 305°

8 0
3 years ago
Other questions:
  • Two cables were attached to the top of a pole and anchored to the ground on opposite sides of the pole. What is the length of th
    9·1 answer
  • All nets that will make a triangular prism
    10·1 answer
  • In triangle $ghi$, we have $gh = hi = 25$ and $gi = 30$. what is $\sin\angle ghi$? (note: this is not the exact same as the prev
    8·1 answer
  • Kelly is knitting a scarf for her brother. It took her 1/3 hour to knit 3/4 foot of the scarf. How fast is Kelly knitting, in fe
    9·1 answer
  • What is the point-slope form of a line that has a slope of 3 and passes through the point (–1, 4)?
    15·1 answer
  • Mrs. Eaton's class is participating in the "Box Tops for Education" campaign. On the first day, her
    12·2 answers
  • The number of sweets s that each friend gets is the number of sweets in a box n divided by the number of friends f the sweets ar
    10·1 answer
  • Help please I’m struggling badly because Im sooo bad at math
    10·1 answer
  • What is in between 2.5 and 3?
    12·2 answers
  • The product of 7 and j is 91. What is j?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!