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
MA_775_DIABLO [31]
2 years ago
12

(20 POINTS AND BRAINLIEST)

Mathematics
2 answers:
Mamont248 [21]2 years ago
7 0

Answer:

see below

Step-by-step explanation:

a) y = 6x + 25  (because the 25 is the initial fee)

b) x = 10, so:  

= 6 * 10 + 25

= $85

c) x = 7, so:

= 6 * 7 + 25  

= $69

Hope this helps!

Evgen [1.6K]2 years ago
3 0

Answer:

a) The equation is y = 6x + 25 since the 25 is the initial fee.

b) We plug in 10 for x. 6 * 10 + 25 = $85.

c) We plug in 7 for x and get 6 * 7 + 25  = $69.

You might be interested in
A sample of 38 observations is selected from one population with a population standard deviation of 3.4. The sample mean is 100.
kaheart [24]

Answer:

a. two-tailed test

b. reject H0 if Z>1.96 or Z<-1.96

c. Z = 1.73

d. we have failed to reject the null hypothesis

e. P-value = 0.0418

Step-by-step explanation:

We will use a Z test to resolve this, an it will be a two-tailed test because the hypothesis statements are not indicating a specific direction for the significant difference (H0 : μ1 = μ2 ; H1 : μ1 ≠ μ2), this also means that the significanclevel will be divided between the both tails (2.5% en each tail for the rejection regions). See attached drawing for reference.

We need to find our critical value:

Zα/2 = Z(0.05/2) = 0.025

If we look for 0.025 in a Z table we will find that the critical value is 1.96 to the right, and by symmetry -1.96 to the left. So our decision rule will be to reject H0 if Z>1.96 or Z<-1.96

The Z test will be done using the next equation:

Z = (x⁻1 - x⁻2) - (μ1 - μ2) / √( σ²1/n1 + σ²2/n2

Because we are testing the null hypothesis we know that μ1 - μ2 must be zero if they are supposed to be equal (H0 : μ1 = μ2), so we calculate as follows:

Z = (100.5 - 98.8) - (0) / √( (3.4)²/38 + (5.8)²/51 = 1.7/0.9817 = 1.73

Z<1.96, therefore we have failed to reject the null hypothesis

The P-value for this test would be represented by the probability of Z being greater than 1.73, so we can look for it in any Z table, finding that its value is 0.0418, and because P-value>0.025 we again confirm that we don't have evidence statistically significant to reject the null hypothesis

4 0
3 years ago
The product of a number and 3 plus 1 is 19
ElenaW [278]
The correct answer is 15.
4 0
3 years ago
Read 2 more answers
John purchases goods for R450.00 including VAT . Calculate the amount he pays for VAT
Nady [450]

Answer:

Whats the percentage of the VAT?

8 0
2 years ago
Help on 1,2,3,4,5,6,7, and 8 please!
Bogdan [553]
Number 7 is 6 2/3 ...
3 0
3 years ago
What is the domain of the function y=2√x-6?<br> 88AX&lt;∞<br> O 0≤x&lt;∞<br> 3≤x&lt;∞<br> 6≤x&lt;∞
Travka [436]

Answer:

If the x-6 is all under the sqrt, the last answer is right:

6<= x <= infinity

If only x is under the sqrt and - 6 is NOT under the sqrt, then:

0 <= x <= infinity is the correct answer.

Step-by-step explanation:

You can look at the equation and or graph to determine the domain of a function. The domain is all the x's that may go into the equation or all the x's on the graph of the function. Inside of a squareroot symbol the number inside there must be positive. While considering the equation, only x's that keep that inside positive can be used.

For sqrt(x-6), x has to be 6 or bigger.

For sqrt(x) - 6, x has to be 0 or bigger.

6 0
2 years ago
Other questions:
  • Erik and Nita are playing a game with numbers. In the game, they each think of a random number from zero to 20. If the differenc
    12·1 answer
  • What is the coefficient of a in the expression 5a3 + 9a2 + 7a + 4 ?
    13·2 answers
  • The circumference of an oil tank is 55 ft. Find the radius.
    11·2 answers
  • What is the name of the number that tells you how many groups?
    11·1 answer
  • What is the simplified answer and how to find it
    12·1 answer
  • Factor this polynomial expression.
    6·1 answer
  • PLEASE HELP THIS IS SUPER URGENT
    12·2 answers
  • What is -18/-6? I am having trouble with negative numbers.
    10·2 answers
  • Someone please help me
    11·1 answer
  • A square postage stamp has area 1,130 mm². About how long is each side?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!