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3 years ago

PLEASE HELP ME IN MATHS !!!!!

Mathematics

1 answer:

skad [1K]3 years ago

8 0

9514 1404 393

Answer:

see attached

Step-by-step explanation:

The formula tells you the diameter is 2 times the radius. Pick some values for radius and multiply them by 2 to get the diameter. The graph will be a straight line through the origin with a slope of 2.

(Strictly speaking, the graph should not extend to negative values, as negative values for radius and diameter make no sense in the real world.)

We did not put unit labels (cm, feet, yards, km, light-years, etc.) on the graph axes. For a slope of 2, the graph needs the same units on both axes. They can be whatever units of distance you might choose.

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Kaya's family spends \$ 105$105 to rent a boat for 77 days. The total cost, cc, of the boat rental is proportional to the number

Anastaziya [24]

$c = 15d$

Step-by-step explanation:

find the value of the constant of proportionality k

$k = \frac{v}{d}$

c =total cost

d =days

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2 years ago

Mary is the manager of a new clothing shop. The shop located in a new shopping mall and Mary wants to estimate the average daily

sergeinik [125]

Explanation:

a) First, note that the Type I error refers to a situation where the null hypothesis is rejected when it is actually true. Hence, her null hypothesis would be H0: mean daily demand of her clothes in this region should be greater than or equal to 100.

The implication of Type I error in this case is that Mary rejects that the mean daily demand of her clothes in this region is greater than or equal to 100 when it is actually true.

b) While, the Type II error, in this case, is a situation where Mary accepts the null hypothesis when it is actually false. That is, Mary accepts that the mean daily demand of her clothes in this region is greater than or equal to 100 when it is actually false.

c) The Type I error would be important to Mary because it shows that she'll be having a greater demand (which = more sales) for her products despite erroneously thinking otherwise.

5 0

3 years ago

What is the diameter of a cone with height 8 m and volume 150 m3 ? (1 point 7.5 m 15 m?

Hitman42 [59]

This is the concept of volume of solid materials, we are required to find the diameter of cone with height 8 and volume 150 m^3.
volume of cone is given by;V=1/3 (pi*r^2*h)
making r^2 the subject we get;
V/(pi*h)=r^2
inserting the values in our formula we get:
150/(pi*8)=r^2
r^2=5.97
thus;
r=sqrt(5.97)=2.44
But ;
diameter=2*radius
thus
diameter=2.44*2
=4.88 m

3 0

3 years ago

Simplify sqrt 3× sqrt 27

sleet_krkn [62]

√3√27

=√(3*27)

=√81

=9

As 9*9=81.

----------------------

RULES:

√a√b=√ab

As (√a√b)²=((√a)²(√b)²)=√a√a√b√b=ab

When:

(√a√b)²=ab

√a√b=√ab

4 0

4 years ago

Read 2 more answers

Which shows the graph of the solution set of 2x+3y≤6?

mel-nik [20]

Answer:

Option (a) is correct.

Step-by-step explanation:

Given : equation 2x + 3y ≤ 6

We have to choose out of given option the graph that shows the graph of the solution set of 2x + 3y ≤ 6

Consider the given equation 2x + 3y ≤ 6

We first find the points where the equation cut x- axis and y-axis.

Thus,

For x - axis put y = 0 ,

We get 2x + 3(0) ≤ 6 ⇒ 2x ≤ 6 ⇒ x ≤ 3

Thus, point (3,0)

For y - axis put x = 0 ,

We get 2(0) + 3y ≤ 6 ⇒ 3y ≤ 6 ⇒ y ≤ 2

Thus, point (0,2)

For region we choose a test point and find the value of x and y on that test point and check whether it satisfy the inequality satisfies or not.

Consider the point (0, 0) , then inequality becomes,

2(0) + 3(0) ≤ 6 ⇒ 0 ≤ 6 (true)

Hence, region below the line will be considered.

Thus, Option (a) is correct.

6 0

3 years ago

Read 2 more answers