K Write an expression for the sequence of operations described below. add y to z, then multiply 3 by the result​

Answers

Answer 1

Answer:

3(y+z)

Step-by-step explanation:

y+z is added first so it is in parentheses and then multiply by the 3


Related Questions

PLZ RESPOND AS SOON AS POSSIBLE
What point is located at (-2, -6)
a. F
b. G
c. H
d. K

Answers

Answer:

Can we get an image of the graph

Step-by-step explanation:

Where is the graph?BTW, that point is located in quadrant III

What linear expression would you add to -4y+2 to have a sum of y

Answers

Answer:

4

Step-by-step explanation:

Write integer to describe each situation. A. Charge of 24$ is debited from a bank account

Answers

Answer:

-24

Step-by-step explanation:

To represent a charge of $24 debited from a bank account, this type of transaction being described as a debit means that a sum of $24 was deducted from the account, meaning the total amount in the account will reduce after this transaction takes place. Hence a charge of $24 being debited will take a negative sign as could be represented by the integer - 24

A toy has been marked up by 75%. The tag lists the price as $63. Find the wholesale price.

Answers

Answer:

110.25

Step-by-step explanation:

You do 1.75 because it is a mark up and ur paying 175 percent

Simplify.
10/-4 - √3

Answers

Answer:

here you go. hope this helps

Answer:

-4.23205080...

Step-by-step explanation:

Find the value of the expression below when x = 27, y = - 4 , and z = 64 . 2 * root(3, x) - 5sqrt(x) + y ^ 2 answer

Answers

Answer:

-18

Step-by-step explanation:

x = 27, y = - 4, z = 64

Expression:

2∛x - 5√z + y² = 2∛27 - 5√64 + (-4)² = 2(3) - 5(8) + 16 = 6 - 40 + 16 = -18

ASAP!! simplify x^-2 show work

Answers

Answer:

1/x^2

Step-by-step explanation:

exponent rule: a^-b = 1/a^b

x^-2 = 1/x^2

Answer:

[tex] \frac{1}{ {x}^{2} } [/tex]

Step-by-step explanation:

1) Remove parentheses.

[tex] {x}^{ - 2} [/tex]

2) Use negative power rule: x^-a = 1/x^a.

[tex] \frac{1}{ {x}^{ 2} } [/tex]

hence, the answer is 1/x^2.


1. One of the acute angles of a right triangle is 28°, the other acute angle is?

Answers

Answer:

no idea

Step-by-step explanation:

cuz I don't

the passing of heart through a material is called _____

Answers

Answer:

hardening of the arteries.

Conduction the passing of heat through a material while the material itself stays in place

i need help ASEP please help me

Answers

Answer:

5

Step-by-step explanation:

it is 5 because you do 1+4=5

Jacob Lee is a frequent traveler between Los Angeles and San Diego. For the past month, he wrote down the flight times in minutes on three different airlines. The results are:

Goust Jet Red Cloudtran
51 50 52
51 53 55
52 52 60
42 62 64
51 53 61
57 49 49
47 50 49
47 49
50 58
60 54
54 51
49 49
48 49
48 50

Required:
a. Use the α =0.05 significance level and the six-step hypothesis-testing process to check if there is a difference in the mean flight times among the three airlines.
b. Develop a 95% confidence interval for the difference in the means between Goust and Cloudtran

Answers

Solution :

We know that

[tex]$H_0: \mu_1 = \mu_2=\mu_3$[/tex]

[tex]$H_1 :$[/tex] At least one mean is different form the others (claim)

We need to find the critical values.

We know k = 3 , N = 35, α = 0.05

d.f.N = k - 1

       = 3 - 1 = 2

d.f.D = N - k

        = 35 - 3 = 32

SO the critical value is 3.295

The mean and the variance of each sample :

Goust                      Jet red                 Cloudtran

[tex]$\overline X_1 =50.5$[/tex]           [tex]$\overline X_2 =50.07143$[/tex]        [tex]$\overline X_3 =55.71429$[/tex]

[tex]$s_1^2=19.96154$[/tex]      [tex]$s_2^2=14.68681$[/tex]         [tex]$s_3^2=36.57143$[/tex]

The grand mean or the overall mean is(GM) :

[tex]$\overline X_{GM}=\frac{\sum \overline X}{N}$[/tex]

         [tex]$=\frac{51+51+...+49+49}{35}$[/tex]

        = 52.1714

The variance between the groups

[tex]$s_B^2=\frac{\sum n_i\left( \overline X_i - \overline X_{GM}\right)^2}{k-1}$[/tex]

     [tex]$=\frac{\left[14(50.5-52.1714)^2+14(52.07143-52.1714)^2+7(55.71426-52.1714)^2\right]}{3-1}$[/tex]

   [tex]$=\frac{127.1143}{2}$[/tex]

   = 63.55714

The Variance within the groups

[tex]$s_W^2=\frac{\sum(n_i-1)s_i^2}{\sum(n_i-1)}$[/tex]

    [tex]$=\frac{(14-1)19.96154+(14-1)14.68681+(7-1)36.57143}{(14-1)+(14-1)+(7-1)}$[/tex]

   [tex]$=\frac{669.8571}{32}$[/tex]

  = 20.93304

The F-test  statistics value is :

[tex]$F=\frac{s_B^2}{s_W^2}$[/tex]

  [tex]$=\frac{63.55714}{20.93304}$[/tex]

  = 3.036212

Now since the 3.036 < 3.295, we do not reject the null hypothesis.

So there is no sufficient evidence to support the claim that there is a difference among the means.

The ANOVA table is :

Source       Sum of squares    d.f    Mean square    F

Between    127.1143                 2      63.55714          3.036212

Within        669.8571             32      20.93304

Total           796.9714            34

Graph triangle JKL and its image after a reflection in the line x=2 J(1,-1), K(3,0), L(0,-4)

Answers

Answer:

I need more information to help you on this question.

Step-by-step explanation:

The points after image reflection in the line x = 2 will be k'(1, 0), L'(4, -4) and J'(3, -1).

What is a graph?

In math, graph science is the theory of geometric structures called graphs that are used to represent pairwise different objects. Vertices—also known as nodes or points—that are joined by edges make form a network in this sense.

Undirected graphs, where edges connect two vertices equally, and focused therapy, where edges connect two vertices unevenly, are distinguished.

As per the given information in the question,

Here mirror (x = 2) is vertical, hence only x-coordinate changes vertical distance from x-axis will not change.

For point k(3, 0)

It is one unit right side or x  = 2. So, its  image point will be one unit left side that is k'(1, 0).

For point L(0, -4)

It is two unit left side, so L' will be 2 unit right side of x = 2, so the point will be L'(4, -4)

Similarly, point J(1, -1) will become J'(3, -1).

To know more about Graph:

https://brainly.com/question/17267403

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Sebastian says that the graph below shows the solution set of the inequality 2.5x≥−20. Do you agree?

Answers

Answer:

There is not a graph.

Step-by-step explanation:

You forgot to include the screenshots.

Determine the slope and the y- intercept of the line 7x +3y = -8

Answers

Answer:slope is -7/3 and x=0 y=-8/3

Step-by-step explanation:

The slope of the line is -7/3

The y-intercept of the line is -8/3.

What is an equation of a line?

The equation of a line is given by:

y = mx + c

where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

7x + 3y = -8

3y = -8 - 7x

3y = -7x - 8

y = (-7/3)x - 8/3

This is in the form of y = mx + c

Now,

Slope = -7/3

y-intercept = -8/3

Thus,

The slope is -7/3 and the y-intercept is -8/3.

Learn more about equation of a line here:

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One number is 5 more than 4 times another. Their sum is 40. Find the two numbers.

Answers

Answer:

7 and 33

Step-by-step explanation:

Two equations:

x = 5 + 4y

x + y = 40

Substitute x for 5 + 4y:

5 + 5y = 40

5y = 35

y = 7

Substitute y for 7:

x = 5 + 4(7)

x = 33

Is 1/2 equal , less than or greater than 9/10

Answers

Answer:

1/2 is less than 9/10

Step-by-step explanation:

1/2 =0.5

9/10=0.9

Answer:

1/2 is less than 9/10

Step-by-step explanation:

When you change the denomenator to be equal the other denominator,  1/2 will change to 5/10.     1 x 5 = 5.    2 x 5 = 10.

So, since 9/10 is greater than 5/10, 1/2 would be less than 9/10.

A streaming music site changed its format to focus on previously unreleased music from rising artists. The site manager now wants to determine whether the number of unique listeners per day has changed. Before the change in format, the site averaged 131,520 unique listeners per day. Now, beginning three months after the format change, the site manager takes a random sample of 30 days and finds that the site now has an average of 124,247 unique listeners per day. Using the data provided below, calculate the p-value for the following hypothesis test:
H0:μ=131,520
Ha:μ≠131,520
Listeners after change
125,020
139,250
101,590
94,800
83,700
84,380
139,170
89,380
91,410
139,570
138,980
102,710
124,600
144,770
156,920
131,100
140,020
139,250
118,800
128,380
168,370
133,140
106,930
129,630
120,820
125,250
122,860
122,500
135,230
148,870

Answers

Answer:

The p value is: 0.0301

Step-by-step explanation:

Given

[tex]\mu = 131520[/tex]

[tex]\bar x = 124247[/tex]

[tex]n = 30[/tex]

Required

Determine the p value

First, calculate the standard deviation of the given data.

This is calculated as:

[tex]\sigma = \sqrt{\frac{\sum(x - \bar x)^2}{n}}[/tex]

So, we have:

[tex]\sigma = \sqrt{\frac{(83700 - 124247)^2 + (84380- 124247)^2 + (89380- 124247)^2 + ..... + (156920- 124247)^2 + (168370- 124247)^2}{30}}[/tex]

[tex]\sigma = \sqrt{\frac{13427820070}{30}}[/tex]

[tex]\sigma = \sqrt{447594002.333}[/tex]

[tex]\sigma = 21156[/tex]

The test statistic is then calculated as:

[tex]t = \frac{\bar x - \mu}{\sigma/\sqrt n}[/tex]

[tex]t = \frac{124247 - 131520}{21156/\sqrt{30}}[/tex]

[tex]t = \frac{-7273}{21156/5.48}[/tex]

[tex]t = \frac{-7273}{3860.58}[/tex]

[tex]t = -1.88[/tex]

The p value is calculated as:

[tex]P(Z > -1.88)[/tex]

[tex]P(Z>-1.88) = 0.030054[/tex]

[tex]P(Z>-1.88) = 0.0301[/tex] --- approximated.

Hence, the p value is: 0.0301

All vectors and subspaces are in RnR n. Mark each statement True or False. Justify each answer.
a. Not every linearly independent set in RnR n is an orthogonal set.
b. If y is a linear combination of nonzero vectors from an orthogonal set, then the weights in the linear combination can be computed without row operations on a matrix.
c. If the vectors in an orthogonal set of nonzero vectors are normalized, then some of the new vectors may not be orthogonal.
d. A matrix with orthonormal columns is an orthogonal matrix.
e. If L is a line through 0 and if ˆyy^ is the orthogonal projection of y onto L, then ∥ˆy∥∥ y^ ∥ gives the distance from y to L.

Answers

Answer:

a. True

b. True

c. False

d. False

e. False

Step-by-step explanation:

The matrix with orthonormal column must be in square for that it forms orthogonal matrix. Every orthonormal set of non zero vector is linearly independent. This statement is correct because there is linear combination of non zero vectors.

8x/2 = 24, what value for x makes this equation true?

Answers

Answer:

x=6

Step-by-step explanation:

8x/2= 24

8x = 24× 2

8x= 48

8x÷8 = 48÷8

x= 6

Answer:

6

Step-by-step explanation:

multiply both sides by 2/8 to isolate x.

8/2x=24

2/8(8/2)x=2/8(24)

x=48/8

x=6

For a quadratic equation where: 2++=0
a
x
2
+
b
x
+
c
=
0

Where: 2−4<0
b
2

4
a
c
<
0

How many solutions do you have?

State whether the solutions are rational, irrational, or non-real. Explain why.

Answers

Answer: No real solution

Step-by-step explanation:

Given

For the quadratic equation

[tex]ax^2+bx+c=0[/tex]

It is given that [tex]b^2-4ac<0[/tex]

[tex]D=b^2-4ac[/tex]

If [tex]D=0[/tex] roots are real and equal

If [tex]D>0[/tex] roots are real and distinct

If [tex]D<0[/tex] roots are imaginary

In this case, [tex]D<0[/tex]

So, there is no real solution for the given quadratic equation.

Help pleaseeeeeeeeeeee

Answers

Answer;

Mark traveled at the highest velocity to Charleston

He traveled a velocity of a lot of miles and distance

A car travels 45 feet in 1 second. At this rate, how many miles will it travel in 1 hour?

Answers

Answer:

256 i did it before

Step-by-step explanation:

In feet the car will travel 162,000 ft. In miles it will be 30.7 rounded original is 30.68 miles. I hope this helps.

12. Which of these is not a characteristic (property) of a polygon?
A. A closed shape
B. Parallel faces
C. Made of straight lines
D. Two-dimensional

Answers

B. Parallel faces

Not all sides need to be parallel and a polygon has only 1 face unless cut

The diagram shows the radius of the circular
opening of a metal soup can.
3 in
Soup
Which of the following is closest to the area of
the opening in square centimeters?
A.
9.42 in?
C. 18.75 in?
Need Help?
B.
28.27 in
D. 113.1 in

Answers

Answer:

B. 28.27

Step-by-step explanation:

6. Which TWO sets of numbers
have a difference of 5?

A. 12 and 7
B. 13 and 6
C. 11 and 8
D. 14 and 9

Answers

Answer:

A and D

Step-by-step explanation:

A: 12-7=5

B: 13-6=7

C: 11-8=3

D 14-9=5

Have a Fantastic Day! :D

Answer: A. 12 and 7 and C. 14 and 9

Explanation:

Difference is the result of subtracting

12 - 7 = 5
13 - 6 = 7
11 - 8 = 3
14 - 9 = 5

Gavmans
add me on pinterest

Answers

Answer:

I would also add you...but i just don't WANT to

Help Please!! Struggling with this for a while

Answers

Answer:

Area of triangle ABC = 6 square units

Step-by-step explanation:

By applying Pythagoras theorem in right triangle ADC,

AC² = AD² + CD²

3² = (1.8)² + CD²

9 - 3.24 = CD²

CD = √5.76

CD = 2.4 units

By applying mean ratio theorem,

[tex]\frac{AD}{CD}=\frac{CD}{DB}[/tex]

CD² = AD × DB

(2.4)² = 1.8 × DB

DB = [tex]\frac{5.76}{1.8}[/tex]

DB = 3.2 units

AB = AD + DB

AB = 1.8 + 3.2

AB = 5 units

Since, area of a triangle ABC = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]

                                                = [tex]\frac{1}{2}(\text{AB})(\text{CD})[/tex]

                                                = [tex]\frac{1}{2}(5)(2.4)[/tex]

                                                = 6 square units

he first date went well. You are still dating the same person and still looking for a great person to spend your life with. You are cautiously moving forward with the relationship and know that if they are a great match, their likelihood of being kind to animals is 0.9 whereas their likelihood of being kind to animals if they are not a great match is 0.7. You see that your prospective spouse is kind to animals. What is the probability that they are a great match now?

Answers

Answer:

0.125 = 12.5% probability that they are a great match now.

Step-by-step explanation:

To solve this question, we need the probability of a person being a great match, which i will use 0.1.

This question is solved using conditional probability.

Conditional Probability

We use the conditional probability formula to solve this question. It is

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Is kind to animals.

Event B: Is a great match.

Probability of being kind to animals:

0.9 of 0.1(Is a great match).

0.7 of 1 - 0.1 = 0.9(is not a great match). So

[tex]P(A) = 0.9*0.1 + 0.7*0.9 = 0.72[/tex]

Probability of being kind to animals and a great match:

0.9 of 0.1. So

[tex]P(A \cap B) = 0.9*0.1 = 0.09[/tex]

What is the probability that they are a great match now?

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.09}{0.72} = 0.125[/tex]

0.125 = 12.5% probability that they are a great match now.

Find the area of the figure.
6 in.
6 in.
8 in.
4 in.

Answers

Answer:

92 inches squared

Step-by-step explanation:

6x6=36

4x(8+6)=56

56+36=92

What is Bc and what is ac

Answers

Answer:

Before and after current era

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