hi i need the answer to this

Answer:

-14

Step-by-step explanation:

No, you are supposed to do them at the same time. You need to go in whatever order they are in from left to right.

Answer:

y=6x+18 i think

Step-by-step explanation:

The ordered pair represents a point 9 units to the right the origin and 4 units below the origin.

From the question, we have

The point (9,−4) represents a point 9 units to the right the origin and 4 units below the origin.

Cartesian Coordinate System:

Using the coordinate system, a point in a plane can be located by joining two perpendicular lines. Points are represented as coordinates (x, y) with respect to the x- and y-axes in two dimensions. In this essay, we'll examine the Cartesian coordinate system. A plane is made up of axes and quadrants. The name of the axes is the coordinate axes. A plane is made up of axes and quadrants. The name of the axes is the coordinate axes. Distances are measured along the vertical and perpendicular axes of a rectangular system.

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The simplify value of numeric expression, 3 + 2, after adding 3456 then subtracting 45 and then dividing by 20 is equals the 17.8.

We have an expression of numbers, 3 + 2 we have to apply some arithematic operations on it and determine the final simplfy value. Let the expression be x = 3 + 2, add 3456 in it

=> x = 3 + 2 + 3456

Substracts 45 from above expression

=> x = 3 + 2 + 3456 - 45

Dividing the above expression of x by 20

=>

\(\frac{ x } {20} = \frac{ 3 + 2 + 3456 - 45}{20}\)

\(= \frac{3416}{20}\)

= 17.8

Hence, required simplify value is 17.8.

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Answer:

Step-by-step explanation:

The experimental probability of the cube landing on three is 1/10.

Answer: half gallon is better.

Step-by-step explanation:

Answer:

-8/13

Step-by-step explanation:

The slope of (-6,5) and (7,-3) is -8/13.

Answer: pretty sure it’s -8

Step-by-step explanation:

I used the slope formula which is:

m= y2-y1/x2-x1

m= -3-5/7-6

m= -8/1

m= -8

Answer: The diagonals are thus equal, and divides the rectangle into right triangles, whereas the diagonals of a parallelogram are not equal and bisect it into two congruent triangles with angles depending on that of the parallelogram.

Answer:

5/7

Step-by-step explanation:

you divide by 2 or 3 or 4 or 5 ect

Step-by-step explanation:

find a common denomination

10÷2=5

14÷2=7

so, 10/14 = 5/7

If x varies directly with the square of y​ and inversely with the cube root of z​, the value of x when y = 1 and z = 27 is x = 1.

Given that,

x varies directly with the square of y​ and inversely with the cube root of z.

For some constant k,

x = k y²/ ∛z

Also, we have, x=24​ when y=4​ and z=8.

24 = k (4)²/ ∛(8)

24 = 16 k / 2

24 = 8k

k = 3

So the equation is,

x = 3y²/ ∛z

When y = 1 and z = 27,

x = 3 (1)²/ ∛(27)

x = 3 / 3

x = 1

Hence the value of x = 1.

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Answer:

5 gallons of 70% antifreeze, 1 gallon of 45% antifreeze

Step-by-step explanation:

Many different combinations can be made to equal 65% pure antifreeze.

Essentially, this problem is asking us to find a combination that fits a mean of 65%. So, multiply 5 by 70 to get 350, and 1 x 45 to get 45. Add 350 + 45 together to get 395, and divide by the total amount of gallons used - 6.

395/6 = 65, which is the target value.

Answer:

this is so easy do $8.00+$8.00

Step-by-step explanation:

6 inch radius equals 8 + 6 inch radius equals 8 so your answer is 12 which is the radius and the actual answer is 16 do your answer is 16

Answer:8cm

Step-by-step explanation:112/14=8

Answer: Let's denote the length of an edge of one of the square bases as x. Then, the volume of the rectangular tank can be expressed as:

V = x^2 * h

where h is the height of the tank. Substituting the given values, we get:

63,908 = x^2 * 64

Dividing both sides by 64, we obtain:

x^2 = 63,908 / 64

x^2 = 998.9375

Taking the square root of both sides, we get:

x ≈ 31.6

Rounding to the nearest tenth, we have:

x ≈ 31.6 centimeters

Therefore, the length of the edge of one of the square bases is approximately 31.6 centimeters.

Step-by-step explanation:

Answer:

B. Inches

Step-by-step explanation:

Because it measures the length of something, Not the weight.

Answer:

C

Step-by-step explanation:

weight in the USA is usually measured in LBS (pounds)

To graph the equation x + 2y - 1 = 9, we can first rearrange it to solve for y:

x + 2y - 1 = 9

2y = 10 - x

y = (10 - x) / 2

Now we can pick three different values of x and find the corresponding values of y using this equation. Let's choose x = 0, x = 2, and x = 4:

When x = 0:

y = (10 - 0) / 2 = 5

So one point on the graph is (0, 5).

When x = 2:

y = (10 - 2) / 2 = 4

So another point on the graph is (2, 4).

When x = 4:

y = (10 - 4) / 2 = 3

So the third point on the graph is (4, 3).

To check if this equation is linear or nonlinear, we can see if it satisfies the property of linearity, which is that if we draw a line between any two points on the graph, all other points on the graph should lie on that same line.

Let's check if this holds true for the three points we've chosen:

If we plot these three points, we get:

   |

 6 |

   |     * (4, 3)

 5 |        

   |   * (2, 4)

 4 |

   | * (0, 5)

 3 +------------------

   0   2   4   6   8  10

Visually inspecting the plot, it looks like all three points do indeed lie on a straight line. Therefore, we can conclude that this equation is linear.

The remainder when x³ - 1 is divided by (x + 3) is  -28

The functions are given as

x 3 1 is divided by x 3

Rewrite them as

f(x) = x³ - 1 is divided by (x + 3)

Set the divisor to 0

So, we have

x + 3 = 0

Determine the value of x

This gives

x = -3

By the remainder theorem

Substitute x = -3 in the function f(x)

So, we have

f(-3) = (-3)³ - 1

Evaluate the expression

f(-3) = -28

By the remainder theorem, this represents the remainder

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Answer:

B, C

Step-by-step explanation:

Answer:

98.6 Fahrenheit

Step-by-step explanation:

The p-value is  0.046, or 4.6% if a sample of shoppers showed stating that the supermarket brand was as good as the national brand.

To calculate the p-value, we use null and alternative hypotheses, as well as the test statistic and its distribution under the null hypothesis.

By the null hypothesis, we can say that supermarket brands are as good as national brands, and by the alternative hypothesis, we can say that supermarket brands are not as good as national brands.

This hypothesis can be tested by performing a two-tailed z-test for proportions.

In a sample of n shoppers, say that x shoppers say that supermarket brands are as good as domestic brands. The sample percentage can be calculated as follows:

p hat = x/n

in the null hypothesis, the  sample proportion is equal to the hypothesized proportion, that is 0.5

The test statistic for a two-sided z-test for proportions is given by:

z = (p-hat - p0) / sqrt(p0(1-p0)/n)

where p0 is the hypothesized proportion under the null hypothesis.

In this case, we have:

p-hat = 0.5

p0 = 0.5

n = sample size

The null hypothesis states that the supermarket brand is as good as the national brand, so we would expect the proportion of shoppers who state this to be 0.5.

If the test statistic z falls in the rejection region (i.e., if |z| > 1.96 for a significance level of 0.05),

we would reject the null hypothesis and conclude that there is evidence to suggest that the supermarket brand is not as good as the national brand.

If the test statistic falls in the non-rejection region (i.e., if |z| <= 1.96 for a significance level of 0.05),

we would fail to reject the null hypothesis and conclude that there is insufficient evidence to suggest that the supermarket brand is not as good as the national brand.

To calculate the p-value, we need to find the probability of getting a test statistic as extreme or more extreme than the one we observed, assuming the null hypothesis is true.

For a two-tailed test, the p-value is twice the observed area of ​​the tails above the absolute value of the test statistic.

Assuming the sample size is large enough, the distribution of the test statistic can be approximated as a standard normal distribution under the null hypothesis.

Suppose in a sample of 100 shoppers, 50 said that supermarket brands are as good as domestic brands. after that:

p hat = 0.5

p0 = 0.5

n=100

The test statistic is:

z = (p hat - p0) / sqrt(p0(1-p0)/n) = 0 / sqrt(0.5 * 0.5 / 100) = 0

The p-value is the probability that the test statistic is extreme or more extreme than 0. This is the probability of getting further away from the 50/100 ratio or 0.5 in either direction.

p-value = P(p hat <= 0.4 or p hat >= 0.6) = 2 * P(p hat <= 0.4) = 2 * P(Z <= ( 0.4 - 0.5) / sqrt (0.5 * 0.5 / 100) ) = 2 * P(Z <= -2) ≈ 0.046

where Z is a standard normal random variable.

Therefore, the p-value is approximately 0.046, or 4.6%.

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Answer:

surface area = 6a^2 = 6

hence are = 6 unit.sq

Answer:

4.25 km

Step-by-step explanation:

850 x 5 = 4250m

1m = 0.001 km

4250(0.001) = 4.25 km

Answer:

4.25 km

Step-by-step explanation:

850 m × 5 days = 4,250 m

there are 1000 m in a km.

4250 m ÷ 1000 = 4.25 km

The measure of reliability of a statistical inference is the significance level. The significance level, also known as alpha, is the probability of rejecting the null hypothesis when it is actually true. It determines the threshold for accepting or rejecting a hypothesis.

A lower significance level indicates a higher level of confidence in the results. A descriptive statistic provides information about the data, but it does not directly measure the reliability of a statistical inference. It simply summarizes and describes the characteristics of the data.

A sample statistic is a numerical value calculated from a sample, such as the mean or standard deviation. While it can be used to make inferences about the population, it does not measure the reliability of those inferences.
A population parameter is a numerical value that describes a population, such as the population mean or proportion.

While it provides information about the population, it does not measure the reliability of inferences made from a sample. In conclusion, the significance level is the measure of reliability in a statistical inference as it determines the probability of making a Type I error, which is rejecting the null hypothesis when it is actually true.

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The area of the circle is A = 32.154 in²

For a circle of radius R, the area is given by.

A = π*R²

Where π = 3.14

Here we know that the diameter (two times the radius) is 6.4 inches, then the radius will be:

R = D/2

R = 6.4 in/2 = 3.2 inches.

Then the area of the circle is:

A = 3.14*(3.2in)²

A = 32.154 in²

The correct option is the second one.

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Answer:

55 i think

Step-by-step explanation:

An equation that can be used to find the probability, p, that the person is also a female  given that the randomly selected audience member is a student from the class is: P = (17/120) ÷ (37/120)

For given question,

The audience of the magic show is conformed by a total of 120 people, 52 of which are female and 68 are men.

Within the audience there is a school class of 37, of these students, 17 are female and 20 are male.

First we find the probability of selecting a student from the class in all audiences.

P(A) = 37/120

Now, the probability that the selected student is female student:

P(B) = 17/120

We need to write an equation for combined probability which is given by,

P = (17/120) ÷ (37/120)

Therefore, an equation that can be used to find the probability, p, that the person is also a female  given that the randomly selected audience member is a student from the class is: P = (17/120) ÷ (37/120)

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All the angles of the given parallelogram found using the properties of the parallelogram are 38°,38°, 142° and 142°.

What is meant by a parallelogram?

A quadrilateral with two sets of parallel sides is referred to as a parallelogram. A parallelogram's facing or opposing sides are of equal length, and its opposing angles are of similar size. On the same side of the transversal, the interior angles are supplementary. 360 degrees is the sum of all interior angles. The qualities of a parallelogram are shared by the shapes of a square and a rectangle.

Given the two opposite angles of parallelogram as (4x-50)° and

(60 - x)°.

We are asked to find all the angles of the parallelogram.

As said earlier, opposite angles of parallelogram are equal.

So,

4x-50 =  60 - x

5x = 110

x = 22

So the opposite angles are:

4x-50 = 4*22- 50 = 38°

Adjacent angles are supplementary. So,

38 + y = 180

y = 142°

Sum of all angles of parallelogram should be 360°.

38+38+142+142 = 360°.

Therefore all the angles of the parallelogram are 38°,38°, 142° and 142°.

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The solution of the system is:

x = 62/7

y = 30/7

Here we have the system:

4x + 5y = -14

-5x - 8y = 10

To solve it by combining the equations, we need to try to remove one of the variables.

If we take the sum of 5 times the first equation and 4 times the second equation we get:

5*(4x + 5y) + 4*(-5x - 8y) = 5*(-14) + 4*10

If we simplify that we get:

20x  + 25y - 20x - 32y = -30

-7y = -30

Now we can solve that for y:

y = -30/-7 = 30/7

Now to get the value of x, we can replace the value of y in any of the given equations:

Using the first one:

4x + 5y = -14

x = (-14 - 5y)/4

x = (-14 - 5*30/7)/4 = (-98/7 - 150/7)/4 = 248/28 = 124/14 = 62/7

The solution of the system is:

x = 62/7

y = 30/7

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