Answers
Answer:
no solution
Step-by-step explanation:
There are no values of x that make the equation true.
No solution
Answer:
5 divide by 8 equal 0.625 + 2 = 2.625 + x= 2.625x and 1-3x equal = 2x(5/6)= 17x
Step-by-step explanation:
A Step-by-step means moving slowly from one stage or level to the next
Don’t worry, we’ll take things one step at a time.
Related Questions
Which of the following probabilities is equal to approximately 0.2957? use the portion of the standard normal table below to help answer the question. z probability 0.00 0.5000 0.25 0.5987 0.50 0.6915 0.75 0.7734 1.00 0.8413 1.25 0.8944 1.50 0.9332 1.75 0.9599 p (negative 1.25 less-than-or-equal-to z less-than-or-equal-to 0.25) p (negative 1.25 less-than-or-equal-to z less-than-or-equal-to 0.75) p (0.25 less-than-or-equal-to z less-than-or-equal-to 1.25) p (0.75 less-than-or-equal-to z less-than-or-equal-to 1.25)
Answers
A z-table is also known as the standard normal distribution table. The probability of P(0.75≤ z ≤ 1.25) is 0.121.
What is a Z-table?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)
Which situation can be represented by the inequality x < 56? A) Tina's dog weighed 56 pounds two months ago. He gained weight and weighs x pounds now. B) Tina has x dollars. She has more than enough money to buy a camera that costs $56. C) Tina walks for 56 minutes. She walks for the same amount of time as her sister, who walks for x minutes. D) Tina's height is x inches. She is shorter than her brother, whose height is 56 inches.
Answers
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
The area of the triangle below is 2/15 square centimeters. What is the length of the
base? Express your answer as a fraction in simplest form.
Answers
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!
D) A rectangular garden has a width of 1.2 meters and a length of 3.5 meters. For each square meter of space in the garden, Leo needs to use 0.075 kilogram of fertilizer. He finds the total amount of fertilizer needed for the garden using the work below. Leo is incorrect. Use the drop-down menus to explain Leo's mistake and the actual amount of fertilizer needed for the garden. Area of the Garden Amount of Fertilizer 1.2 x 3.5 60 + 360 4.2 X 0.075 21 0 + 2940 0.2 150 4.2 0
Answers
The total amount of fertilizer needed for the rectangular garden is 0.315 kg.
What is the total amount of fertilizer needed?The first step is to determine the area of the garden.
Area of the garden = length x width
=1.2 x 3.5 = 4.2
The second step is to multiply 0.075 by 4.2
0.075 x 4.2 = 0.315 kg
To learn more about multiplication, please check: https://brainly.com/question/3385014
Find the angle of x please!
Answers
Check the picture below.
Make sure your calculator is in Degree mode.
An international calling plan charges a rate per minute plus a connection fee. You can make a phone call from France to the United States for $0.22 per minute plus a $0.99 connection fee. Write a linear equation that could be used to represent the cost of an x minute phone call.
Answers
Answer:
y=0.22x+0.99
Step-by-step explanation:
Notice that in this problem they are giving us a rate $0.22 per minute. This means that whenever we multiply that rate by the number of minutes used, we will get the total amount of money spent. In this case, since we don't know the amount of minutes (variable) we will call them x, so the first part of the equation should be:
0.22x
the connection fee is $0.99, which means that no matter the time you take talking by the phone, you will be charged a constant value of $0.99, so we can add that to the previous value we got:
0.22x+0.99
and for the equation to be complete, we can set variable y= to the total cost of the call, so the whole equation would be:
y=0.22x+0.99
What is the value of X?
(x + 11)
(3x + 7)
Answers
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
(X+11)
+(3x+7)
————
(4x+18)=180
180
- 18
——
162/4= 40.5
GEOMETRY HELP!!!!!!!!
Why is he wrong?
Answers
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?
How long will it take to count to 3,140,000 by 1's?
show you work!
explain your answer!
Answers
Answer:
A long time
Step-by-step explanation:
A long time
A long time
The bear population increases at a rate of 2% per year. If there are 1,200 bears currently, how many bears will there be in 10 years?
Answers
[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]
You have a half pizza leftover in the refrigerator. The first night, the pizza goes to the refrigerator and eats 20% of the pizza in hope that no one notices the missing pizza. The second night the pizza pirate returns and eats 20% of the remaining pizza. the pattern continues for the next few days.
Answers
[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!
please answer quickly check the image below
Answers
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]
Write an equation of the line passing through (-4,7) and having slope - 5. Give the answer in slope-intercept form.
The equation of the line in slope-intercept form is
Answers
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
what is the image of (-2, -5) after a reflection over the line y = x
Answers
Answer:
2, -5
Step-by-step explanation:
Answer:
(-5, -2)
Step-by-step explanation:
Rule for reflection over y = x :
(x, y) -> (y, x)
For questions 7 – 10, choose the figure that is most likely the next step in the sequence.
Answers
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
A study investigated the job satisfaction of teachers allowed to choose supplementary curriculum for their classes versus teachers who were assigned all curricular resources for use in their classes. the authors of the study wanted to know if the two groups of teachers had different levels of job satisfaction. they will use a significance level of 5% for their test. upper-tail values a 5% 2.5% 1% critical z-values 1.65 1.96 2.58 what is (are) the critical value(s) for z in this study? –1.65 and 1.65 –1.96 and 1.96 1.65 1.96
Answers
The critical values of Z in this study are given by: Option C: -1.96 and 1.96
How to form the hypotheses?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:
[tex]\mu_1[/tex] = mean of level of job satisfaction for first group of teachers.[tex]\mu_2[/tex] = mean of level of job satisfaction for second group of teachers.Then, as the test is for checking if the difference exist, the null hypothesis will deny existence of any difference.
Thus, we get:
Null hypothesis: [tex]H_0: \mu_1-\mu_2 = 0[/tex] or we say [tex]H_0: \mu_1 = \mu_2[/tex]Alternate hypothesis: [tex]H_1: \mu_1-\mu_2 \neq 0[/tex] or we say [tex]H_1: \mu_1 \neq \mu_2[/tex]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
HELp due in 10 mins Thanksnsssss
Answers
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
Please help with these!!
Answers
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.
Find the sum of 3squared4 and 2 squared 3 in simplest form. Also, determine whether the result is rational or irrational and explain your answer.
Answers
Answer:
1
Step-by-step explanation:
you gotta add
Simplify the expression below. Show all steps.
√4x^2 ÷ 3y
Answers
Answer:
4x÷3y
Step-by-step explanation:
√4x^2 ÷ 3y
√16x÷3y
4x÷3y
Hoped it helped :)
A 0.13
B 0.17
C 0.39
D 0.45
Answers
A group of friends were working on a student film. They spent $546 on props, which was 39% of their total budget. What was the total budget for their student film?
Answers
Answer:
Step-by-step explanation:
Spent=$546
Budget=100%
=39/100*546
Please show steps to answer. No links please
Answers
Answer:
18 hours after 10 AM
Step-by-step explanation:
We are looking for the time the helicopter and the plane will be the same distance from Burbank after 10 AM.We are given the two equations for the distance that the helicopter and the plane are away, in miles.It also says that R is the variable for time.Using this information, we need to solve for the time with broth equations, so we would set both up to be equal to each other, since they will be the same distance away from each other.It would look like this: -150r + 260 = -270r + 440.Add 150r to both sides.260 = -10r + 440.Add -10r to both sides.Now we have 10r + 260 = 440Subtract 260 from both sides.10r = 180Divide each side by 10 to isolate the R.R = 18.It would be 18 hours after 10 AM.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.
help me please I don't understand
Answers
Answer:
it is B. increasing
Answer:
C.it is a constant
Step-by-step explanation:
Hope this helped!
Please mark me as brainliest!
How do I do this and what is the correct answer?
Answers
Hope this helps.
Correct me if I’m wrong.
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]
Find the value of x.
Answers
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.
Solve the compound inequality.
7
Answers
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:
After a tournament, members of a
soccer team went to dinner. They
ordered 10 pizzas that cost $18.25
each and 20 sports drinks for $2.50
each. Tax was included in the prices
and they left a $35. tip. How much did they spend in all?
Answers
Answer:
$267.50
Step-by-step explanation:
This is the answer for 18.25 each and 2.50 each
If you mean 10 pizza for 18.25 combined and 20 drink for 2.50 combined then $55.75
Help please???????????
Answers
Answer:
525
Step-by-step explanation:
i really dont know what it asking
Karen wants to buy 5 pounds of baby carrots. the packages of carrots each weigh 14 ounces, how many will she need to buy to reach 5 pounds?