Pls help me on this problem I’m confused

Answer:

1

Step-by-step explanation:

you gotta add

Answer:

r≈ 5.9 cm

Step-by-step explanation:

A z-table is also known as the standard normal distribution table. The probability of P(0.75≤ z ≤ 1.25) is 0.121.

A z-table also known as the standard normal distribution table, helps us to know the percentage of values that are below (or to the left of the Distribution) a z-score in the standard normal distribution.

As it is given that the probability and the z-table is given to us, as shown below,

 z          Probability

0.00       0.5000

0.25       0.59871

0.50        0.6915

0.75        0.7734

1.00         0.8413

1.25         0.8944

1.50          0.9332

1.75          0.9599

The following probabilities can be written as:

1.  The probability of P(-1.25)

[tex]P(-z)=1-P(z)\\\\P(-1.25)=1-P(1.25)\\\\P(-1.25)=1-(0.8944)\\\\P(-1.25)=0.1056[/tex]

The probability of P(-1.25) is 0.1056.

2.  The probability of P(-1.25 ≤ z ≤ 0.25)

[tex]P(-1.25\leq z\leq 0.25)=P(0.25)-P(-1.25)\\\\P(-1.25\leq z\leq 0.25)=0.59871-0.1056=0.49311[/tex]

The probability of P(-1.25 ≤ z ≤ 0.25) is 0.49311.

3.  The probability of P(-1.25 ≤ z ≤ 0.75)

[tex]P(-1.25\leq z\leq 0.75)=P(0.75)-P(-1.25)\\\\P(-1.25\leq z\leq 0.75)=0.7734-0.1056=0.6678[/tex]

The probability of P(-1.25 ≤ z ≤ 0.75) is 0.6678.

4.  The probability of P(0.25 ≤ z ≤ 1.25)

[tex]P(0.25 \leq z\leq 1.25)=P(1.25)-P(0.25)\\\\P(0.25\leq z\leq 1.25)=0.8944-0.59871=0.29569[/tex]

The probability of P(0.25 ≤ z ≤ 1.25) is 0.29569.

5.  The probability of P(0.75≤ z ≤ 1.25)

[tex]P(0.75\leq z\leq 1.25)=P(1.25)-P(0.75)\\\\P(0.75\leq z\leq 1.25)=0.8944-0.7734=0.121[/tex]

The probability of P(0.75≤ z ≤ 1.25) is 0.121.

Learn more about Z-table:

https://brainly.com/question/6096474

Answer:

C

Step-by-step explanation:

P (0.25 less-than-or-equal-to z less-than-or-equal-to 1.25)

Step-by-step explanation:

Question 8: Ramiro is correct because the triangles are similar by AA (the measure of angle C in triangle ABC is 180-62-39=79 degrees). Julie is wrong because you would need at least 1 pair of corresponding congruent sides to prove the triangles congruent (angles alone are not sufficient)

The question with the angle diagram:

Since angles A and B are supplementary (since they form a linear pair), their measures add to 180 degrees. Hence, the measure of angle B is 180-140=40 degrees.

The measure of angle E can be found by the same logic, and has a measure of 50 degrees.

Since the sum of the measures of the angles of a triangle is 180 degrees, the measure of angle C is 180-40-50=90 degrees.

Hence, since angles C and D are supplementary, angle D has a measure of 90 degrees.

Answer:

10 2/3

Step-by-step explanation:

[tex] \frac{24}{9} = \frac{8}{3} [/tex]

[tex] \frac{8}{3} + 8 = \frac{8 + 24}{3} = \frac{32}{3} = 10 \frac{2}{3} [/tex]

Answer:

19a - 141
-------------
     18

Step-by-step explanation:

Combine multiplied terms into a single fraction

Combine multiplied terms into a single fraction

Multiply the numbers

Answer:

Step-by-step explanation:

The general equation is y = mx + b

You already have m which is the slope. So the general equation becomes y = -5x + b

The point is meant to find b

x = - 4

y = 7

7 = - 5*-4 + b

7 = 20 + b                         Subtract 20 from  both sides.

7 - 20 = 20-20 + b           Combine

- 13 = b

Answer: y = - 5x - 13

Answer:

it is B. increasing

Answer:

C.it is a constant

Step-by-step explanation:

Hope this helped!

Please mark me as brainliest!

Answer:

525

Step-by-step explanation:

i really dont know what it asking

Answer:

this is how!!!

Step-by-step explanation:

so since it says “unit price” (also says dollar per bananas) all you have to do is make a variable and substitue

So:

Let number of bananas be “ b “

0.50b

0.5(4)

2

2 dollars

It the same for the rest except the last two

Since you dont know the number of bananas, let b be unknown, but may it equal to the cost given. For example:

10 = 0.5b

Since you dont know b

To solve for b, you have to make b be all by itself (like me when my cousin is sleeping on the other side of the world ;’) )

To do that you have to divide  0.5 to both sides

10 / 0.5 = 0.5b / 0.5

This will remove 0.5 from the right side and isolate b

Since b and 0.5 are being multiplied you can factor 0.5 out from the right side

10 / 0.5 = b

Now simplify

B = 20 bananas

C.

Number of half-unit cubes = 18

V = 2 1/4 cubic units

volume of rectangle: length * width * height

[tex]\hookrightarrow 1\dfrac{1}{2} * 1\dfrac{1}{2} *1[/tex]

[tex]\hookrightarrow \dfrac{3}{2} * \dfrac{3}{2} *1[/tex]

[tex]\hookrightarrow \dfrac{9}{4}[/tex]

[tex]\hookrightarrow 2\dfrac{1}{4}[/tex]

To find number of half units cubes:

volume * 8 half-unit in every cube

[tex]\rightarrow 2\dfrac{1}{4} *8[/tex]

[tex]\rightarrow \sf 18[/tex]

Check the picture below.

Make sure your calculator is in Degree mode.

Answer:

18 hours after 10 AM

Step-by-step explanation:

If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.

Answer:

4x÷3y

Step-by-step explanation:

√4x^2 ÷ 3y

√16x÷3y

4x÷3y

Hoped it helped :)

Answer:

Ok, first of all, that's not an inequlity. An inequality includes < or >, and also ≤ or ≥. 7 is not an inequality, so perhaps you made a mistake typing the question?

Step-by-step explanation:

Given:

The inequality is [tex]x<56[/tex].

To find:

The correct situation for the given inequality.

Solution:

Tina's dog weighed 56 pounds two months ago. He gained weight and weighs x pounds now. It means, weighs x pounds is more than 56 pounds.

[tex]x>56[/tex]

So, option A is incorrect.

Tina has x dollars. She has more than enough money to buy a camera that costs $56. It means, amount $x is more than required amount $56.

[tex]x>56[/tex]

So, option B is incorrect.

Tina walks for 56 minutes. She walks for the same amount of time as her sister, who walks for x minutes. It means, x is equal to 56.

[tex]x=56[/tex]

So, option C is incorrect.

Tina's height is x inches. She is shorter than her brother, whose height is 56 inches. It means, Tina's height is x inches is less than her brother's height, i.e., 56 inches.

[tex]x<56[/tex]

Therefore, the correct option is D.

Answer:

11

Step-by-step explanation:

I'm in K12 and this is right

Answer:

Step-by-step explanation:

7) First shape has 3 sides; second figure has 4 sides and the third shape has 5 side. In this way, the nest shape should have 6 sides

Answer: B

8) C

Answer:

A long time

Step-by-step explanation:

A long time

The critical values of Z in this study are given by: Option C: -1.96 and 1.96

There are two hypotheses. First one is called null hypothesis and it is chosen such that it predicts nullity or no change in a thing. It is usually the hypothesis against which we do the test. The hypothesis which we put against null hypothesis is alternate hypothesis.

Null hypothesis is the one which researchers try to disprove.

For this case, we want to know if the two groups of teachers had different levels of job satisfaction.

Suppose that we have:

Then, as the test is for checking if the difference exist, the null hypothesis will deny existence of any difference.

Thus, we get:

The alternate hypothesis creates two regions, on either side as:

[tex]\mu_1 < \mu_2[/tex] and [tex]\mu_1 > \mu_2[/tex]

This is why it is two tailed test.

The level of significance is 5% specified.

Thus, [tex]\alpha = 5\% = 5/100 = 0.05[/tex]

From the critical values table, the critical value(s) of Z for level of significance 0.05 and for two tailed test are: [tex]\pm 1.96[/tex]

Thus, the critical values of Z in this study are given by: Option C: -1.96 and 1.96

Learn more about hypothesis testing here:

https://brainly.com/question/18831983

Answer:

Step-by-step explanation:

its option B

Answer:

2, -5

Step-by-step explanation:

Answer:

(-5, -2)

Step-by-step explanation:

Rule for reflection over y = x :

(x, y) -> (y, x)

Answer:

He is wrong since reflecting the image across the x-axis means reflecting it on the axis that is horizontal and reflecting it over the y-axis means reflecting it on the y-axis which is verticle.

Answer:No, it would not be the same if you reflect it from the X axis.

Step-by-step explanation:

because the the shape is not "on" the X axis. When you reflect the shape across the X axis, then you will not really get a shape. It's easier if you imagine you put a mirror on the x axis and looked at it. Malik would have to shift the whole shape down so that the current points (3,1) and (-3,1) would change to (3,0) and (-3,0) Also shifting down the other two points too. Reflecting it is like if you had the shape in paper and you folded it in half. If it matches perfectly, then you know that you have a match and that it is reflecting. If it doesn't fold perfectly, then it doesn't reflect. So if you folded the shape from the X axis, you wouldn't get a perfect match so he is wrong. Does it help?

[tex]Answer:[/tex]

The pizza pirate ate the whole pizza!

2(days) + 3(a few days) = 5

20 x 5 = 100%

Therefore, the whole pizza is gone. Don't worry, I'll buy a new one!

Answer:

im not sure if this is correct but:

Step-by-step explanation:

4x+18

360= 4x+18

360-18=342

342/4 is 85.5

to check work

(85.5*4) + 18

=360

Answer:

x=128

Step-by-step explanation:

Answer:128

Step-by-step explanation:

The angles in a trapezoid add up to 360, so if you add all the ones already given then subtract them from 360 you get 128.

The value of x that will make the considered parallelogram ABCD a rhombus is 4 units.

Rhombus is a parallelogram whose all sides are of equal lengths.

For this problem, the missing figure is attached below.

We see that the angle between the diagonals is [tex](3x- 12)^\circ[/tex]

It is given that ABCD is a parallelogram.

For ABCD parallelogram to be a rhombus, its diagonals need to be perpendicular to each other.

Perpendicular lines have 90° angle between them.

Thus, we need:

[tex](3x- 12)^\circ = 90^\circ[/tex]

Evaluating value of x:

[tex](3x- 12)^\circ = 90^\circ\\3x - 12 = 90\\\text{Adding 12 on both the sides}\\3x = 102\\\text{Dividing both the sides by 3}\\\\x = 12/3 = 4[/tex]

Thus, the value of x is 4

Learn more about rhombus here:

https://brainly.com/question/1542707

Answer:

ANSWER:   x=34

Step-by-step explanation:

E2020

Let's set the base of the triangle to x.

(x* 3/5) / 2= 2/5

Now just solve

x*3/5=4/5

x=4/3

The base has length 4/3= =1 1/3

Hope it helped!

[tex]\qquad \textit{Amount for Exponential Growth} \\\\ A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &1200\\ r=rate\to 2\%\to \frac{2}{100}\dotfill &0.02\\ t=\textit{elapsed time}\dotfill &10\\ \end{cases} \\\\\\ A=1200(1 + 0.02)^{10}\implies A=1200(1.02)^{10}\implies A\approx 1462[/tex]

The game field is 350 40 percent for 250 is 100 and 250 plus 100 is 350