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
sukhopar [10]
3 years ago
9

Please Help ASAP

Mathematics
1 answer:
I am Lyosha [343]3 years ago
3 0
A little late, but to find out the output for 24.5, you first need to find the "rule" for this table. in other words, you need to figure out what equation they're using to get these outputs

they're doing SOMETHING to the x values to get the y values. take your outputs, y, and divide them by your inputs. see if you run into a pattern.

14/4 = 3.5
17.5/5 = 3.5
21/6 = 3.5
24.5/7 = 3.5

... and you do. the equation here is probably y = 3.5x, because every x value appears to be multiplied by 3.5 to get the y value.

so, you can find the output for 24.5 by multiplying it by 3.5
24.5 * 3.5 = 85.75

for some reason, it seems like they rounded down to 84? not quite sure why. 84/24.5 is about 3.4, which isn't as precise, but it's the closest to the result. i would choose A. 
You might be interested in
Select all ratios equivalent to 12:7
pochemuha

Answer:

24:14

48:28

60:35

36:21

84:49

96:56

108:63

120:70

6 0
3 years ago
Please help. Trig: Laws of Cosines
umka2103 [35]

Answer:

21.4 units

Step-by-step explanation:

Greater angle: 180 - 80 = 100

diagonal² = 14² + 14² - 2(14)(14)cos(100)

diagonal² = 460.0700856454

diagonal = 21.4492444073

5 0
4 years ago
2 d2 + 15d + 23 = 3<br> It’s quadratic formula
DENIUS [597]

Answer:

-15 plus or minus the square root of 65 all over 4 (All over means fraction)

4 0
3 years ago
An insurance company estimates 45 percent of its claims have errors. The insurance company wants to estimate with 99 percent con
nydimaria [60]

Answer:

We need a sample size of at least 657.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is given by:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

45 percent of its claims have errors.

So \pi = 0.45

99% confidence level

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

What sample size is needed if they wish to be within 5 percent of the actual

This is a sample size of at least n, in which n is found when M = 0.05.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.05 = 2.575\sqrt{\frac{0.45*0.55}{n}}

0.05\sqrt{n} = 1.28

\sqrt{n} = \frac{1.28}{0.05}

\sqrt{n} = 25.62

\sqrt{n}^{2} = (25.62)^{2}

n = 656.4

We need a sample size of at least 657.

6 0
3 years ago
Solve 2x - y = -6 if the domain is (-2,-1, 0, 1).
MAVERICK [17]

Answer:

y = 2, y = 4, y = 6, y = 8

Step-by-step explanation:

We are given an equation 2x - y = - 6.

We have to solve it.  

The linear two-variable equation can be rearranged as y = 2x + 6 ........ (1)

Now, we need x values to get corresponding y values.{Since, there are two variables and only one equation}

It is given that the domain is (- 2, - 1, 0, 1).

Therefore, those are the x values for which we have to solve for y from equation (1).

For, x = - 2, y = 2( - 2 ) + 6 = 2 (Answer)

For, x = - 1, y = 2( - 1 ) + 6 = 4 (Answer)

For, x = 0, y = 2( 0 ) + 6 = 6 (Answer)

For, x = 1, y = 2( 1 ) + 6 = 8 (Answer)

3 0
3 years ago
Other questions:
  • The grocery store sells dates for $4.00 a pound and pomegranates for $2.75 a pound. choose an equation in standard form for the
    12·1 answer
  • At soccer practice, natalie ran laps and practiced dribbling. after practice, she had a granola bar, a piece of fruit, and some
    14·1 answer
  • A gardener uses a wheelbarrow to move soil from a truck to his garden. On the first trip from the truck to the garden, the wheel
    15·2 answers
  • INSTRUCTIONS :
    7·1 answer
  • Write 34/9 as a decimal
    12·1 answer
  • Factor completely 7x^2+35x+42
    6·2 answers
  • How many combinations of two letters are possible from three letters?
    5·1 answer
  • What is the factored form of the polynomial?
    10·2 answers
  • Find the length of the third side. If necessary, round to the nearest tenth.
    12·2 answers
  • 2.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!