an exercises 4-7, find the values of X and Y to satisfy the equation​

Answer:

Disagree

Step-by-step explanation:

[tex]3.67 = c - 2.13 \\ 3.67 + 2.13 = c \\5.8 0 = c[/tex]

Answer:

2.576

Step-by-step explanation:

The Z critical value for constructing a 99% confidence interval for a proportion is 2.58.

A z-score measures exactly how many standard deviations a data point is above or below the mean. It allows us to calculate the probability of a score occurring within our normal distribution and enables us to compare two scores that are from different normal distributions.

For the given situation,

The confidence interval for a proportion = 99% = 0.99

Area to the left of a positive Z score in this standard normal distribution table is

⇒ [tex]\frac{1+confidence level}{2}[/tex]

⇒ [tex]\frac{1+0.99}{2}[/tex]

⇒ [tex]\frac{1.99}{2}[/tex]

⇒ [tex]0.995[/tex]

The corresponding Z score in the table for 0.995 is

⇒ [tex]2.5+0.08[/tex]

⇒ [tex]2.58[/tex]

Hence we can conclude that the Z critical value for constructing a 99% confidence interval for a proportion is 2.58.

Learn more about Z-score here

https://brainly.com/question/15349060

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Answer:

30

Step-by-step explanation:

the ratio is 1:6

Answer:

30 pizzas

Step-by-step explanation:

1 packet makes 6 pizzas, so you would just multiply 6 pizzas by 5 packets of flour to get 30

Answer:

x < -8

Step-by-step explanation:

−3x>24

Divide each side by negative 3, remembering to flip the inequality

-3x/-3 < 24/-3

x < -8

Answer:

x<-8

Step-by-step explanation:

−3x>24

Multiply both sides by (-1) (reverse the inequality)

(-3x)(-1)<24(-1)

Simplify;

3x<-24

Divide both sides by 3

3x/3<-24/3

Simplify

3x/3<-24/3

Simplify; 3x/3

=x

Simplify; -24/3

Divide the numbers;24/3=8

=-8

x<-8

Hope this helped!!!

Answer:

the answer is 5+4× and ur welcome

Answer: 4x + 5

Step-by-step explanation:

sorry if that's

not the answer you're looking for.

Answer:

D. Completely randomized design

Step-by-step explanation:

Based on the description given about the experiment above and the manner in which the subjects were assigned to each of the treatment groups available, we can deduce that the study was conducted using a completely randomized design. The subjects weren't matched or blocked for any variable such as sex, height, age or any other variable. They were just evenly split randomly into the two available treatment levels ( those who receive the treatment and the placebo) group. With this design, all subjects have an equal chance of being in any of the two groups and the selection bias is almost totally eliminated using this sort of design as errors are being considered as arising from experimental faults.

Answer:

EF = 19

Step-by-step explanation:

EF = (23 + 15)/2 = 19

Answer:

39 sq inches

Step-by-step explanation:

Step-by-step explanation:

[tex]f(3) = 3 \times {3}^{2} = 27 \\ f(3) = 3 \times {2}^{3} = 24[/tex]

Answer:

circumference of circle = 2×pi×r

circumference of circle =2×3.14×2.8 mi

circumference of circle =17.584 mi

Answer:

110.068181818

Step-by-step explanation:

Answer:

1) vertical angles

2) corresponding angles/

3) alternate interior

4) supplementary

5) congruent

6) 196°

Step-by-step explanation:

1) vertical angles

2) corresponding angles/

3) alternate interior

4) supplementary

5) congruent

6) 196°

Answer:

600 m²

Step-by-step explanation:

Area = 3.14 × 14 × 14 = 615.44

rounding off :

600 m²

Answer:

c

Step-by-step explanation:

first, find the area of the rectangle thing,

A = lw

14 x 8

112

but, there is a semicircle in it so you need to subtract that from it:

A = πr^2/2

A = π(4)^2/2

A = π16/2

A = 8π

A ≈ 25.132741228718346

then subtract that area from the area of the rectangle:

112 - 25.132741228718346

86.867258771281654

or about 89.9

Answer:

22% probability the student is a junior.

Step-by-step explanation:

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

The table says that:

There are 4 + 6 + 2 + 2 + 3 + 4 + 6 + 6 + 3 = 36 total students.

2 + 6 = 8 are juniors.

If a student is selected at random, find the probability the student is a junior.

8/36 = 0.2222 = 22.22%

Rounding to the nearest whole percent, 22% probability the student is a junior.

Answer:

27%

Step-by-step explanation:

Answer:

[tex] \boxed{ m \overset{\huge\frown}{EFC} \: = \: 237°} [/tex]

Explanation:

Assuming that [tex] \overline{CF} [/tex] is a diameter, and that the angle of an arc subtending the central angle is congruent, [tex] m \overset{\Large\frown}{CGF} \: = \: 180° [/tex].

And according to the arc addition postulate, [tex] \overset{\Large\frown}{CG} + \overset{\Large\frown}{GF} \: = \: \overset{\huge\frown}{CGF} [/tex].

Using the substitution property:

[tex] \overset{\Large\frown}{CG} + \overset{\Large\frown}{GF} \: = \: 180° [/tex].

Given that [tex] m\overset{\Large\frown}{CG} \: = \: 140° [/tex].

Using the substitution property and that the measures apply to the arc addition postulate, [tex] 140° + m\overset{\Large\frown}{GF} \: = \: 180° [/tex].

[tex] 140° – \: 140° + m\overset{\Large\frown}{GF} \: = \: 180° – \: 140° [/tex].

[tex] m\overset{\Large\frown}{GF} \: = \: 40° [/tex].

Since [tex] \overset{\Large\frown}{GF} [/tex] and [tex] \overset{\Large\frown}{CD} [/tex] are subtending the center of the circle, they form vertical angles and are therefore congruent.

[tex] \overset{\Large\frown}{GF} \: \cong \: \overset{\Large\frown}{CD} [/tex]

According to the definition of a vertical angle, [tex] m \overset{\Large\frown}{CD} \: = \: 40° [/tex].

Using the arc addition postulate again,

[tex] \overset{\Large\frown}{CD} + \overset{\Large\frown}{DE} + \overset{\Large\frown}{EF} \: = \:\overset{\huge\frown}{CDF}/\overset{\huge\frown}{CEF} [/tex]

Using substitution, as well as how we are given that the central angle subtended by [tex] \overset{\Large\frown}{DE}[/tex] = 83°, we can find that:

[tex] 40° + 83° + \overset{\Large\frown}{EF} \: = \:\overset{\huge\frown}{CDF}/\overset{\huge\frown}{CEF} [/tex]

1.)1/6

2.)1 5/10

3.)2 6/7

4.)2

5.)1 7/12

6.)2 4/5

7.)1/12

with like denominators you can just add or subtract freely just the top numerators

Answer:

1.)1/6

2.)1 5/10

3.)2 6/7

4.)2

5.)1 7/12

6.)2 4/5

7.)1/12

Step-by-step explanation:

Answer:

$78.37 ÷7

Step-by-step explanation

im not smart

Answer: Compound probability is equal to the probability of the first event multiplied by the probability of the second event

HOPE THIS HELPS

Answer:

61

Step-by-step explanation:

median mean the middle number (number that appears to be in the middle)

you were given a series of numbers, like in this question is quite easy because you were given five numbers. so you cancel out two from the left and two from your right the remainder is 61 and that's your median.

Answer:

31.50

Step-by-step explanation:

Answer:

The answer is 13.005

Step-by-step explanation:

Answer:

13.005

Step-by-step explanation:

Answer:

The slope of the line is 0, that is, it is a horizontal line.

Step-by-step explanation:

Slope of a line:

The slope of a line having two points in the format (x,y) is given by the change in y divided by the change in x.

(-4,-5) and (3,-5).

Change in y: - 5 - (-5) = -5 + 5 = 0

Change in x: 3 - (-4) = 3 + 4 = 7

0/7 = 0

The slope of the line is 0, that is, it is a horizontal line.

Answer:

d. Cos B = 9/41

Step-by-step explanation:

Recall, SOHCAHTOA.

Cos B = Adjacent length / Hypotenuse length

Adjacent length to reference angle B = 27

Hypotenuse length = 123

Cos B = 27/123 = 9/41

Answer:

y = 218

Step-by-step explanation:

Mean = (Sum of all numbers)/(How many numbers present)

27 = (20 + 2y + 25 + y + 30)/27

27 = (3y + 75)/27

3y + 75 = 729

3y = 729 - 75

3y = 654

y = 218

Answer:

x=9/8

Step-by-step explanation:

Answer:

[tex]46 \frac{7}{8} \: cubic \: feet[/tex]

Step-by-step explanation:

[tex]\boxed{volume \: of \: prism = base \: area \: \times height}[/tex]

Base area= length ×width

Let's convert all the mixed numbers into improper fraction for easier calculation.

Width

= 7½

[tex] = \frac{7(2)}{2} + \frac{1}{2} [/tex]

[tex] = \frac{14}{2} + \frac{1}{2} [/tex]

[tex] = \frac{15}{2} ft[/tex]

Height

= 1¼

[tex] = \frac{4}{4} + \frac{1}{4} [/tex]

[tex] = \frac{5}{4} ft[/tex]

Volume of prism

[tex] = 5 \times \frac{15}{2} \times \frac{5}{4} [/tex]

[tex] = \frac{375}{8} [/tex]

[tex] = 46 \frac{7}{8} \: ft {}^{3} [/tex]

Answer:

7.1 units is the answer

Step-by-step explanation:

[tex]d=\sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} \\\\d=\sqrt{(6-1)^2 + (2-7)^2}\\\\d=\sqrt{(5\\)^2+(-5)^2} \\\\d=\sqrt{25+25} \\\\d=\sqrt{50} \\\\d=7.071..[/tex]

Rounding off,

d = 7.1 units