Answer:
the answer is 2/7
Step-by-step explanation:
4 2
__ - __ = 2
7 7 __
7
Transformations and stuff, please help
A. a reflection over the y-axis, then a dilation by a scale factor of 1/2 with a center of dilation at the origin
B. a translation 8 units to the left, then a dilation by a scale factor of 1/2 with a center of dilation at the origin
C. a 90 degree counterclockwise rotation about the origin, then a dilation by a scale factor of 1/2 with a center of dilation at the origin
D. a dilation by a scale factor of 1/2 with a center of dilation at the origin, then a 90 degree counterclockwise rotation about the origin
Answer:
A
Step-by-step explanation:
David is going to order pizza for all 300 seventh grade students at Wood Middle School. He wants to know how many seventh graders prefer pepperoni, cheese, or sausage pizza. David decides to survey 100 seventh grade students to find out what they prefer. Of the students surveyed, 53 prefer pepperoni, 17 prefer cheese, and 30 prefer sausage. Identify the population in the situation above. A. all seventh grade students at Wood Middle School B. all seventh grade students that David did not survey C. all sixth, seventh, and eighth grade students at Wood Middle School D. all seventh grade students that David surv
Answer:
A. All seventh grade students at Wood Middle School
Step-by-step explanation:
We want to find which is the population.
Now, A population is simply the entire set or group that you intend to find out information and draw up a conclusion while sample is the specific set or group derived from that population from which we collect data.
Thus implies that the population size is always more than the sample size.
In this question, from the definition we have given, we can easily see that the population is the 300 seventh grade students at Wood Middle School while the sample is is the 100 seventh grade students that were surveyed.
Please help me with this
Answer:
A. complementary
Step-by-step explanation:
Complementary is when 2 angles add up to 90°. Therefore, the angle in the image shown is a 90° angle. Hope this helps :)
a seven-sided number cube with the sides numberd 1,2,3,4, 5, 6, 7 is rolled once. What is the probability that an even number less than five is rolled?
6/7
5/7
2/7
9/49
Answer:
i think it 2/7
Step-by-step explanation:
im sorry if wrong
A student with a mass of 65 kg steps on an improvised raft. He then moves at a speed of 2.0 m/s to cross a flooded street. With what velocity does the raft move assuming it has a mass of 25 kg?
Answer: 0.2 m/s
Step-by-step explanation:
The student steps on the raft, and then he moves (with the raft) at a speed of 2.0m/s to cross the flooded street.
Then the raft moves with him, at the same speed (notice that the mass of the raft does not matter, suppose that you move at 100km/h in a small car, the speed of the vehicle would be exactly the same as if you where in a truck moving at 100km/h)
Then the speed of the raft is also 2.0 m/s.
14p - 8 = 22 + 20p
could someone help
Answer:
P = -5
Step-by-step explanation:
First try to get the variable p by its self and the whole numbers on the opposite side.
14p - 8 = 22 + 20p
-14p - 14 p
-8 = 22 + 6p
-22 -22
-30 = 6p
Then divide to get P alone
-30 = 6p
/6 /6
-5 = p
Answer:
here is your answer
Step-by-step explanation:
I have Helped please mark me brainliest
Problem 1: Write each expression in the form a^b, without using any radicals.
A: √5^9
B: 1/3√12
[tex]\\ \tt\hookrightarrow \sqrt{5^9}[/tex]
[tex]\\ \tt\hookrightarrow 5^{9\times \frac{1}{2}}[/tex]
[tex]\\ \tt\hookrightarrow 5^{\frac{9}{2}}[/tex]
#2
[tex]\\ \tt\hookrightarrow 1/3\sqrt{12}[/tex]
[tex]\\ \tt\hookrightarrow 1/3(2\sqrt{3})[/tex]
[tex]\\ \tt\hookrightarrow 2/3(3^{\frac{1}{2}})[/tex]
I’ll mark!! Asap-help!!
Mike created a cone that has a volume of 50.24 ft and a height of 3 feet. Find the
radius of this cone.
A) 4
B) 6.5
C) 8
D) not here
10 to 9th power (inspired by mY FRIEND :)
Answer:
1000000000 is your answer
Just add 9 0's to the 1
Answer:
Hi........................
I NEED HELP WITH THIS ASAP PLEASE!
Please help! Thank you.
Answer choices below:
A. Very weak
B. Moderately weak
C. Very strong
D. Moderately strong
Answer:
Step-by-step explanation:
es la d
7x-4+8x=6x+8 abcdefghijklmnop
Answer:
x = 4/3
Step-by-step explanation:
7x − 4 + 8x = 6x + 8
Answer:
x=[tex]\frac{4}{3}[/tex]
Step-by-step explanation:
So the equation is 7x-4+8x=6x+8. All we need to do is simplify. On the left side, 7x+8x=15x, so 15x-4=6x+8. Now, we bring the 6x from the right side to the left. When you bring a term from one side to another, you change its sign. As of now, the sign of 6x is positive, so we make it negative and move it to the left side. The new equation is 15x-6x-4=8. Simplifying the left side gives you a new equation of 9x-4=8. Now we move the -4 from the left side to the right side. We change the sign so it becomes 4 and we move it to the right. The equation is now 9x=8+4. 8+4=12, so the final equation is 9x=12. Now we divide by 9 on both sides, giving us the unsimplified answer of x= [tex]\frac{12}{9}[/tex]. We divide the numerator and the denominator by 3 and we get our final answer of x=[tex]\frac{4}{3}[/tex].
solve for x: 3/4(12x-4)=12
Answer:
5/3
Step-by-step explanation:
Divide both sides by 0.75:
12x - 4 = 16
12x = 20
x = 20/12 = 5/3
10 to the 9th power?
100000000 that's the answer
Answer:
1000000000
Step-by-step explanation:
All you had to do is 10 times 10 9 times if
A number line contains points Q, R, S, and T. Point Q is on the coordinate 4, R is on the coordinate 8, S is on the coordinate 9, T is on the coordinate 12. Find the probability that a point chosen at random on QT is on ST. Express your answer as a percent.
51.5%
37.5%
25%
44%
37.5% esa es la respuesta correcta
Answer:
37.5%
Step-by-step explanation:
What is 0.17 in expanded form?
The expression 3(x-6)2-2(x-1) is equivalent to
Answer:
a
Step-by-step explanation:
did it on egde 100 percent
3. For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. Write an equation for the cost, C, after h hours of babysitting. What do you think the slope and the yintercept represent? How much money will she make if she baby-sits 5 hours?
Answer:
a) C = 3 + 5h
b) Slope = 5
y - intercept = 3
c) $28
Step-by-step explanation:
For babysitting, Nicole charges a flat fee of $3, plus $5 per hour.
a) Write an equation for the cost, C, after h hours of babysitting.
The equation for the cost C is given as:
C = $3 + $5 × h
C = 3 + 5h
b) What do you think the slope and intercept represent?
The equation of a straight line is represented by
y = mx + c
Where
Slope = m and y-intercept = c
Comparing this with our equation in a
C = 3 + 5h = C = 5h + 3
mx = 5h
c = 3
Therefore,
Slope = 5
y - intercept = 3
c)How much money will she make if she baby-sits 5 hours?
We have our equation above as:
C = 3 + 5h
h = 5 hours
Hence,
C = 3 + 5 × 5
C = 3 + 25
C = $28
She would make $28
replace each * with a number to make */24 > 1/4> 4/* a true statement
Answer:
first * can be any number greater than 6
second * can be any number larger than 16
Step-by-step explanation:
take each part alone:
*/24 > 1/4multiply by 24 in both sides → * > 6
1/4 > 4/*multiply by 4 in both sides → 1 > 16/*
take * to first side → * > 16
there is no specific answers you can go with 8 and 18
Answer:
Solve x/24>1/4 for x.
x>6
Solve 1/4>4/xfor x.
x<0 or x>16
Find the intersection of x>6 and x<0 or x>16 .
x>16
Step-by-step explanation:
Margo can purchase tile at a store for $0.69 per tile and rent a tile saw for $28. At another store she can
borrow the tile saw for free if she buys tiles there for $1.39 per tile. How many tiles must she buy for the
cost to be the same at both stores?
Answer:
30 tiles need to buy for same cost in both store.
Step-by-step explanation:
Let x be the number of tiles to buy for same cost in both store.∴18+0.69⋅n=1.29⋅n∴ 1.29n − 0.69n = 18 or 0.6n =18∴n=180.6=30 Therefore, 30 tiles need to buy for same cost in both store
Can somebody help me with this question please I dont know what real world situation I’ll mark you brainlist after please and ty!
Answer:
If I have x cars and sell 12 how many cars do I have left.
Step-by-step explanation:
5. In the equation for exponential functions, y = a.b%, how does the a term relate to a
key feature of the graph?
Help please
Answer: I really don't know sorry
Step-by-step explanation:
the difference between a number and 7,multiplied by 8,is 24.
Answer:
X - 7 x 8 = 24
Step-by-step explanation:
Is your algebra expression
I don't understand it it's probably not that hard tho
Answer:X = 15.2
Step-by-step explanation:
-4+5x= 72+4= 76
5x= 76
X = 15.2
ill mark brainlist plss helppp
Answer:
1 in : 27 yd
Step-by-step explanation:
4 in : 108 yds
108/4=27
so the ratio would be
1 in : 27 yd
The length of a rectangular picture frame is 16 inches, and the width of the picture frame is 12 inches. What is the length of a diagonal of this picture frame in inches?
Answer:
20 inches
Step-by-step explanation:
A rectangular object can instead be thought about as two right triangles with the hypotenuse being the diagonal we are solving for.
With this in mind the Pythagorean Theorem can be used to solve for c
c^2=a^2+b^2
A=16 inches
B= 12 inches
C= hypotenuse
C^2=16^2+12^2
C^2=256+144
C^2=400
Take the square root of both sides: C = 20 inches
Could anyone elaborate on how they determined whether this is a one-tailed, two-tailed, or upper-tailed test? Could you also explain how to determine which section of the graph on a bell curve that gets shaded in?
A company’s call center advertises that they resolve 80% of its customer calls by using automated voice options. A customer who has called in many times and rarely had issues resolved through the automated options believes that 80% is an overstatement. A significance test was done, and a test statistic was calculated. Assume the conditions for inference were met.
H0: p = 0.80
Ha: p < 0.80
p = The true proportion of all customer calls that are resolved by using automated options
Calculate the P-value, given that the resulting test statistic was z = –1.389.
Answer:
1. State the claim H0 and the alternative, Ha
2. Choose a significance level or use the given one.
3. Draw the sampling distribution based on the assumption that H0 is true, and shade the area
of interest.
4. Check conditions. Calculate the test statistic.
5. Find the p-value.
6. If the p-value is less than the significance level, α, reject the null hypothesis. (There is enough
evidence to reject the claim.)
If the p-value is greater than the significance level, α, do not reject the null hypothesis.
(There is not enough evidence to reject the claim.)
(You can use the p-value to make a statement about the strength of the evidence against H0
without using α, e.g., p>.10 implies “little or no evidence against H0”, .05< p ≤ 10 implies
“some evidence against H0”, .01 < p ≤ .05 implies “good evidence against H0”, .001 < p ≤ .01
implies “strong evidence against H0”, p ≤ .001 implies “very strong evidence against H0”.)
7. Write a statement to interpret the decision in the context of the original claim.
Test statistics: (Step 3)
Hypothesis testing for a mean (σ is known, and the variable is normally distributed in the
population or n > 30 ) z
x
n
=
− µ
σ
0
(TI-83: STAT TESTS 1:Z-Test)
Hypothesis testing for a mean (σ is unknown, and the variable is normally distributed in the
population or n > 30 ) t
x
s
n
=
− µ0
(TI-83: STAT TESTS 2:T-Test)
Hypothesis testing for a proportion (when np and n p 0 0 ≥ 10 1 10 ( ) − ≥
(TI-83: STAT TESTS 5:1-PropZTest)
Step-by-step explanation:
i think that it?
Answer:
0.0823
Step-by-step explanation:
Can you help me with the answer and also explain how to get it? thank you!!
Answer:
140
Step-by-step explanation:
200 x .7=140
with percents to decimal you move the decimal 2 places to the left
70
.70
factorise x ^ 4 + 1/x ^ 4 - 3
Answer:
Step-by-step explanation:
Add 1 and subtract 1, so that the expression won't change.
[tex]x^{4}+\frac{1}{x^{4}}-3=x^{4}+\frac{1}{x^{4}}-3 +1 - 1\\\\=x^{4}+\frac{1}{x^{4}} - 2 + 1\\\\= (x^{2})^{2} + (\frac{1}{x^{2}})^{2}- 2 *x^{2}*\frac{1}{x^{2}} - 1\\\\[/tex]
[tex]= (x^{2} -\frac{1}{x^{2}})^{2} - 1\\\\=(x^{2}-\frac{1}{x^{2}})^{2}- 1^{2}[/tex]
(a² - b²) = (a+b)(a - b)
Here a = x² - (1/x²) and b = 1
[tex]= [ (x^{2}-\frac{1}{x^{2}})+ 1 ] [ (x^{2} -\frac{1}{x^{2}} - 1 ][/tex]
helpoo plsssss am stuck
Answer:
The median for 1 is **15**
Step-by-step explanation:
Answer:
1. 142. 16Step-by-step explanation:
1. 7, 13, 14, 14, 16 --> 13, 14, 14 --> 14
Result/Median : 14
2. 8, 10, 13, 16, 16, 17, 20, 20 -->
10, 13, 16, 16, 17, 20 -->
13, 16, 16, 17 -->
16, 16 --> You are left with two numbers, so you find their average.
16 + 16 = 32 / 2 = 16
Result/Median: 16
Hope that helps!