URGENT PLEASE HELP!!!


The dimensions of a rectangular prism are multiplied by 1/2 (so the sides of the new rectangular prism will all be half). Describe the effect of change on the volume.

a
The volume will be multiplied by 1/8, 1/8 times as large.

b
The volume will be 1/2 as much.

c
The volume will be multiplied by 1/4, 1/4 times as large.

d
The volume will be twice as large.

Answer:

8

Step-by-step explanation:

The square root of a number is what number multiplied by itself can result in the product of this.

For example, in this question you multiply 8 by itself to get 64

8*8=64

So, the square root is 8

Answer:

x > -6

Step-by-step explanation:

Move 6 to the other side:

0.5x > -3

x > -6

Answer:

The probability that you roll a 5 or 2 is [tex]\frac{1}{3}[/tex]

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question:

There are 6 total outcomes(all numbers from 1 to 6).

The desired are 2, that is, rolling 2 or rolling 5.

p = 2/6 = 1/3

The probability that you roll a 5 or 2 is [tex]\frac{1}{3}[/tex]

Answer:5/2

Step-by-step explanation:

Answer:

(20,4)

Step-by-step explanation:

Answer:

{4,20}

Step-by-step explanation:

b on edg got 100%

Answer:0.06

Step-by-step explanation: just pretty obvious

Answer:

I believe 0.6 is greater

Step-by-step explanation:

Step-by-step explanation:

I think we can do it in this way

x3 - 3x2 - 10x + 24

x2(x - 3) - 2(5x + 12)

Answer:

[tex] 60^2 = (2x^2) +x^2[/tex]

[tex] 3600 = 5x^2[/tex]

[tex] x = \sqrt{\frac{3600}{5}}= 12\sqrt{5}[/tex]

And we can find the perimeter as:

[tex] P= 2(2x) + 2x[/tex]

And replacing the value given for x we got:

[tex] P =2 (2* 12\sqrt{5}) + 2* (12\sqrt{5}) = 48 \sqrt{5} +24\sqrt{5} = 72 \sqrt{5} cm[/tex]

And for this case the perimeter would be approximately [tex]72 \sqrt{5} cm[/tex]

Step-by-step explanation:

For this case we can assume that the lenght is 2x the width x and the diagonal is 60 cm.

From the picture given we have a right tirngle and we can set the following equation:

[tex] 60^2 = (2x^2) +x^2[/tex]

[tex] 3600 = 5x^2[/tex]

And solving for x we got:

[tex] x = \sqrt{\frac{3600}{5}}= 12\sqrt{5}[/tex]

And we can find the perimeter as:

[tex] P= 2(2x) + 2x[/tex]

And replacing the value given for x we got:

[tex] P =2 (2* 12\sqrt{5}) + 2* (12\sqrt{5}) = 48 \sqrt{5} +24\sqrt{5} = 72 \sqrt{5} cm[/tex]

And for this case the perimeter would be approximately [tex]72 \sqrt{5} cm[/tex]

Answer:

The second one I believe!

Answer:

A

Step-by-step explanation:

x² - 6x - 33 = 0

x² => a²

-6x => -2ab

Therefore, b=3

9 - .....  = -33

...... = 42

x² - 6x + 9 - 42 = 0

(x -3)² - 42 = 0

(x-3)² = 42

First option is answer

Hope this helps ^-^

Answer:

a) P(x = 0) = 64.69%

b) P(x ≥ 1) = 35.31%

c) E(x) = 0.42

d) var(x) = 0.3906

Step-by-step explanation:

The given problem can be solved using binomial distribution since:

The binomial distribution is given by

P(x) = ⁿCₓ pˣ (1 - p)ⁿ⁻ˣ

Where n is the number of trials, x is the variable of interest and p is the probability of success.

For the given scenario. the six daily arrivals are the number of trials

Number of trials = n = 6

The probability of success = 7% = 0.07

a) Find the probability that on one day no planes have an exceedence.

Here we have x = 0, n = 6 and p = 0.07

P(x = 0) = ⁶C₀(0.07⁰)(1 - 0.07)⁶⁻⁰

P(x = 0) = (1)(0.07⁰)(0.93)⁶

P(x = 0) = 0.6469

P(x = 0) = 64.69%

b) Find the probability that at least 1 plane exceeds the localizer.

The probability that at least 1 plane exceeds the localizer is given by

P(x ≥ 1) = 1 - P(x < 1)

But we know that P(x < 1) = P(x = 0) so,

P(x ≥ 1) = 1 - P(x = 0)

We have already calculated P(x = 0) in part (a)

P(x ≥ 1) = 1 - 0.6469

P(x ≥ 1) = 0.3531

P(x ≥ 1) = 35.31%

c) What is the expected number of planes to exceed the localizer on any given day?

The expected number of planes to exceed the localizer is given by

E(x) = n×p

Where n is the number of trials and p is the probability of success

E(x) = 6×0.07

E(x) = 0.42

Therefore, the expected number of planes to exceed the localizer on any given day is 0.42

d) What is the variance for the number of planes to exceed the localizer on any given day?

The variance for the number of planes to exceed the localizer is given by

var(x) = n×p×q

Where n is the number of trials and p is the probability of success and q is the probability of failure.

var(x) = 6×0.07×(1 - 0.07)

var(x) = 6×0.07×(0.93)

var(x) = 0.3906

Therefore, the variance for the number of planes to exceed the localizer on any given day is 0.3906.

Answer:

Trend wants to buy a new bicycle which costs 320$.

He has 35$ saved and earns 15$ each week.

After a number of weeks (a), the amount money he has: A = 35 + 15 x a

If Trend has enough money to buy that bicycle, we have the equation:

35 + 15 x a = 320

=> 15 x a = 320 - 35

=> 15 x a = 285

[tex]a = \frac{285}{15} = 19[/tex]

=> After 19 weeks, Trent will have had enough money to buy that bicycle

Hope this helps!

:)

Answer:

7

Step-by-step explanation:

The mean is the sum of all numbers divided by the total numbers been investigated

0+4+7+7+8+8+8+9+9+10 / 10 = 70/10 = 7

Answer:

The mean is 7

Step-by-step explanation:

mean=sum of the numbers/numbers mentioned

[tex]mean=\frac{0+4+7+7+8+8+8+9+9+10}{10}[/tex]

[tex]mean=\frac{70}{10}[/tex]

[tex]mean=7[/tex]

Answer: 31°

Step-by-step explanation:

We know that a right triangle is equal to 180°. Since this is a right triangle, we know that one angle is 90°. Since we are given out other angle, it is very easy to find the missing angle.

180°=59°+90°+x

180°=149°+x

x=31°

Answera and Step-by-step explanation: Correlation Coefficient is the measure of how strong two variables are. There are numerous types of correlation coefficients and the product moment correlation coefficient, also known as Pearson's correlation or Pearson's R is most commonly used in linear regression. The formula to calculate it is:

r = n(∑xy) - (∑x)(∑y) / √[∑x² - (∑x)²].[n∑y² - (∑y)²]

To find the value of R:

1) Separate the values of X and Y and out them in 2 columns.

2) Add 3 more columns: for xy, x² and y²;

3) Find the values of each column;

4) Add each column;

5) Put the sum of each column in its place on the formula above;

6) Find the correlation.

i) For this question, r = 0.9645. As it's positive, means that the two variables are directly linked, i.e., an increase in one variable will produce an increase in the other variable in the same proportion.

ii) The Senator should distribute Norvasc to the old adults groups, because, as the population grows, the death associated with high blood pressure will also grow, as explained by the correlation coefficient.

Answer:

B

Step-by-step explanation:

Answer:

Step-by-step explanation:

The measure of the inscribed angle BAC is half the measure of the intercepted arc BC, so is 102°/2 = 51°.

The base angles  at B and C are the complement of half this value, or ...

  90° -(51°/2) = 64.5°

The angle measures in the triangle are ...

  ∠A = 51°

  ∠B = ∠C = 64.5°

Answer:

D) 91

Step-by-step explanation:

For the normal approximation, we need that:

np > 5 and np(1-p) > 5

In this question:

[tex]p = 0.89[/tex]

So

A) 10

n = 10, then

10*0.89 = 8.9 > 5

10*0.89*0.11 = 0.979 < 5

Does not satisfy.

B) 11

n = 11, then

11*0.89 = 9.79

11*0.89*0.11 = 1.0769 < 5

Does not satisfy

C) 30

n = 30

30*0.89 = 26.7

30*0.89*0.11 = 2.937 < 5

D) 91

n = 91

90*0.89 = 80.1

90*0.89*0.11 = 8.881 > 5

So this satisfies, and 91 is the answer

Answer:

D) 91

Step-by-step explanation:

A higher sample size results in lower variability, therefore higher precision.

Answer:

D. A cat is a mammal.

Step-by-step explanation:

Reason being is because a cat isn't a dog, yet it's still a mammal.

Answer:

c a spider is not a mammal

Step-by-step explanation:

i mean not all dogs r mammals i mean common sense

Answer: B

Step-by-step explanation:

The actual distances is     1.7 - ( -0.5)=  2.2

A  1.7- 0.5=  1.2 and the absolute value of 1.2 is 1.2

B  1.7- (-0.5) = 2.2

Answer:

  √2

Step-by-step explanation:

The ratio of the hypotenuse to the leg in any isosceles right triangle is √2.

_____

Perhaps you want to figure the hypotenuse, then compute the ratio.

  c = √(a²+b²) = √(3² +3²) = √18 = 3√2

Then the ratio to a leg is ...

  c/a = (3√2)/3 = √2

Answer:

1.4

Step-by-step explanation:

i just did it.

Answer:

the answer is -12u/3 + 2

Answer:

W=-3/2u+2

Step-by-step explanation:

Step 1: Flip the equation.

8w-3=-12u+13

Step 2: Add 3 to both sides.

8w-3+3=-12u+13+3

8w=-12u+16

Step 3: Divide both sides by 8.

8w/8=-12u+16/8

W=-3/2u+2

Hope I helped

Answer:

Correct answer is: E

Step-by-step explanation:

Answer:

Step-by-step explanation:

In a standard normal probability distribution, the Z-value depends on the data set, the mean and the standard deviation, that means, it's a variable measure, it's not a constant, that's why the choice d is wrong.

On the other hand, the other choices are correct regarding standard normal probability distribution.

Therefore, the right answer is d.

Answer:

50 centimetres

Step-by-step explanation:

Answer:

[tex]2\frac{3}{11} \\=2.2727272727[/tex]

Step-by-step explanation:

Answer: The top right and bottom right polygons are parallelograms and not squares.

Step-by-step explanation:

A parallelogram is a quadrilateral with two pairs of parallel sides opposing each other.

A square is a quadrilateral with two pairs of parallel sides opposing each other; however, all four sides must be equal and all angles must equal 90 degrees.

Any quadrilateral that is a parallelogram and not a square has angle measures that are not 90 degrees (or have unequal sides).

Only the top right and bottom right images are parallelograms and not squares.

The shapes that are parallelogram but not a square is the rectangle and the parallelogram. The rhombus is a square because the angles are 90°.

A quadrilateral is a polygon with four sides and four angles. A parallelogram is a quadrilateral with parallel and equal opposite sides.

A square is a quadrilateral in which all sides are equal, opposite sides are parallel and each angle measures 90 degrees.

The shapes that are parallelogram but not a square is the rectangle and the parallelogram. The rhombus is a square because the angles are 90°.

Find out more on quadrilateral at: https://brainly.com/question/16691874

The given value of the first quartile is related to the value cumulative

frequency up to the class of the first quartile.

Reasons:

The first quartile is one of the five number summary.

The number of terms, N = 2 + x + 8 + 5 + 1 =16 + x

[tex]\displaystyle Q_1 = \frac{N+1}{4} \ th \ value = \mathbf{\frac{17 + x}{4} \ th \ value}[/tex]

We have;

[tex]\displaystyle Q_1 = \mathbf{ L + \frac{ \left (\frac{N + 1}{4} - pcf \right) }{f} \times C}[/tex]

Where;

The first quartile, Q₁ = 35

L = 20 in the first quartile class

PCF = The cumulative frequency of the first quartile class = 2 + x

f = The frequency of the quartile class = x

C = The class size = 10

Therefore;

[tex]\displaystyle Q_1 = 35 = \mathbf{ 20 + \frac{ \left (\frac{17 + x}{4} - (2 + x) \right) }{x} \times 10}[/tex]

Which gives;

[tex]\displaystyle 35 = \mathbf{\frac{25 \cdot x + 45}{2 \cdot x}}[/tex]

Therefore;

70·x = 25·x + 45

45·x = 45

x = 45 ÷ 45 = 1

Learn more about the five number summary here:

https://brainly.com/question/4530105

Answer:

3/3/8

Step-by-step explanation: