Answer:
i think that it would be 1/5 but i dont have work to show. ;-;
Step-by-step explanation:
Answer:
4 + 3s/2
Step-by-step explanation:
3/4s + 1/4s = 4/4s = 1s
First add the fraction with the same denominator & combine like terms
Then add 1/2s + 1s
Which equals
1/2 + 1 = 3/2 or 1.5
At last since 4 doesn’t have a variable(s) you cannot combine it so it’s stays the same
4 + 3s/2
The mean age at first marriage for respondents in a survey is 23.33, with a standard deviation of 6.13. The Z score associated with a particular age at first marriage is 0.35. If the proportion of the area between this particular age at first marriage and the mean is 0.14, what proportion of respondents experienced their first marriage earlier than this age?
Answer:
42.48
Step-by-step explanation:
I don't know how to explain
Select the correct expressions. Identify the equivalent expressions of 4(2x + x – 3) – 3x + 3 by substituting x = 2 and x = 3.
Answer:
I think its 4(3x – 3) – 3x, 9x + x - 9, and 9x - 1
Step-by-step explanation:
A small town has about 5000 people. A random sample of 100 people finds that 25 are in
favor of a new park. Estimate the total number out of 5000 who are in favor of the park
Answer:
250
Step-by-step explanation:
4. A scale measuring trust inthe media was administered to a random sample of 114 Democrats and 112 Republicans. The researcher finds that Democrats average a score of 8.5 on this scale, while Republicans average a score of 7.8. Together the Democrats and Republicans have a pooled standard error of .32. Is there a statistically significant difference between Democrats and Republicans in their level of trust in the media (at the alpha
This question is incomplete, the complete question is;
4. A scale measuring trust inthe media was administered to a random sample of 114 Democrats and 112 Republicans. The researcher finds that Democrats average a score of 8.5 on this scale, while Republicans average a score of 7.8. Together the Democrats and Republicans have a pooled standard error of .32. Is there a statistically significant difference between Democrats and Republicans in their level of trust in the media (at the alpha = .05 level )
Answer:
p-value 0.0297
Hence, p value ( 0.0297 ) is LESS THAN ∝ ( 0.05 )
Therefore, this is sufficient evidence to conclude that there is difference between Democrats and Republicans in their level of trust in the media.
Step-by-step explanation:
Given the data in the question;
H₀ : u₁ = u₂
Hₐ : u₁ ≠ u²
test statistics
t = x - u / s
we substitute
t = ( 8.5 - 7.8 ) / 0.32
t = 0.7 / 0.32
t = 2.1875
∝ = 0.05
degree of freedom = n₁ + n₂ - 2 = 114 + 112 - 2 = 224
so
{t[tex]_{\alpha /2[/tex], [tex]_{df[/tex] } = {t[tex]_{0.025[/tex], [tex]_{224[/tex] } = 1971
p-value = 0.02974
p-value 0.0297
Hence, p value ( 0.0297 ) is LESS THAN ∝ ( 0.05 )
Therefore, this is sufficient evidence to conclude that there is difference between Democrats and Republicans in their level of trust in the media.
SOMEONE PLEASE HELP ASAP
I do not understand how to answer this and it’s very confusing.
Fluffy ate 1/2 of a carrot and still had 1/5 left how much did he eat
He ate 1/2 of the carrot
---
hope it helps
sorry if it doesn't
What is the length of EF and the measure of D? A. 35; 47° B. 28; 43° C. 21; 47° D. 21; 43
Answer:
What is the length of EF? 28
What is the measure of D? 47 degrees
A polling organization uses random digit dialing of registered voters in a county to gauge the voters’ opinions about a ballot initiative to increase taxes that would pay for a new county park. The polling organization will investigate whether there are differences in how voters respond based on the highest level of education completed. The phone survey asked the voters contacted whether they approve or disapprove of the tax increase. The voters were also asked to indicate their highest level of education completed: high school, bachelor’s degree, or master’s degree. Which of the following is the appropriate test to investigate whether there is an association between opinion about the ballot initiative and highest level of education completed?
А. A two-sample t-test for a difference between means
B. A two-sample z test for a difference between proportions
C. A chi-square test of homogeneity
D. A chi-square test of independence A chi-square goodness-of-fittest
Answer:
Its D
Step-by-step explanation:
The word association is related to independence test
Explain how to find 40% of a number using friendly percents
Answer:
here's your solution
=> percent means divided by 100
=> to find 40% of a number ,
=> we have to think for a number here it
is not given
=> so, we have to assume it , then let the
number be X
=> now ,. equation= 40/100*x
=> 40/100*X
hope it helps
30% of a number is 24 write and solve a proportion to find the number
Answer:
30/100=24/x the answer is 80
Step-by-step explanation:
Answer:
i dont know but the answer is 80
Step-by-step explanation:
what is twenty multiplier by
five
PLEASE HELP
Jason has a business that prints posters. He is working on an order for printing 1500 posters. He only has 400 posters left to print to complete the order.
Jason will only leave for the day if he has printed
7/10 of the posters for the order.
Can he leave for the day right now?
A. No! Jason has only printed 27/100 of the posters needed.
B. Yes! Jason has printed 73/100 of the posters needed.
С. Yes! Jason has printed exactly 7/10 of the posters needed.
D. No! Jason has only printed 29/50 of the posters needed
Answer:
B. Yes! Jason has printed 73/100 of the posters needed.
Step-by-step explanation:
7/10(1500) = 1050 minimum to print
1500-400 = 1100 printed
1100/1500 = 73/100
select ALL expressions that have the same value
A: 33
B: 34
C: 62
D: 63
E: 92
F: 93
Answer:
3 with the exponent on 4 and 9 with the exponent of 2 have the same value
solve the equation please
=========================================================
Work Shown:
Let x = log(y+2)
The given equation becomes
4x = 3x-log(13)
Solving for x leads to
4x-3x = -log(13)
x = -log(13)
Then substituting gets us
log(y+2) = -log(13)
log(y+2) = log(13^(-1)) .... use the rule that A*log(B) = log(B^A)
log(y+2) = log(1/13)
y+2 = 1/13 ................. used the rule if log(A) = log(B), then A = B
y = (1/13) - 2
y = (1/13) - (26/13)
y = (1-26)/13
y = -25/13 .... answer is choice E
For each step, the logs are the same base. The base doesn't matter. It can be base 10 or base 2 or base e. As long as the base stays consistent is all that matters. Also, the base cannot be 1, 0 or a negative number. The base can be any other real number.
Plzzzzz helpppp!! I don’t understand
Answer:
The value of [tex]x[/tex] is 16.667.
Step-by-step explanation:
In this exercise, we know that the two triangles described in the figure are similar. If both are similar, the following ratio is constructed:
[tex]\frac{x}{25} = \frac{26}{39}[/tex] (1)
[tex]x = 16.667[/tex]
The value of [tex]x[/tex] is 16.667.
GIVING 100 PTS AFTER ITS SOLVED I WILL GIVE BECAUSE I CANT TRUST
Answer: A
Step-by-step explanation
bc it seemed legit-
Answer:
A.
Step-by-step explanation:
wish u would have got better grade
Anybody know how to solve this?
Answer:
1
Step-by-step explanation:
Anything to the 0 power is 1.
Hope this helps!
:)
Answer:
the answer is one.
Step-by-step explanation:
anything to the power of zero is one
The frog jumped 7/8 of a foot on the first jump and 2/3 of a foot on the second
jump. How many feet did the frog jump in total?
feet
Pls show mercy!!!!!
Find the area of the parallelogram. (simplify your answer)
Find 2(6)-3 ..............................
Answer:
Its 9
Step-by-step explanation:
(2)(6)−3
=9
Pls help I will give brainliest
I need help with question#15
Answer: I think it’s c
Step-by-step explanation:
The measure of an angle is 37.1º, What is the measure of its complementary angle?
Answer:
Step-by-step explanation:
The sum of complementary angles is 90°.
90°-37.1° = 52.9°
1/3 of 3/7
helpp I need to show the work
Answer:
1/7
Step-by-step explanation:
1/3 of 3/7 = 1/3 x 3/7
we can cancel out 3 and 3 because they are multipliers of themselves
so now it is 1/1 x 1/7 = 1/7
Or .
1/3 x 3/7 = 1x3/3x7 = 3/21 = 1/7
Factorise fully 21xcubed -49xsquared
Answer:
7x²(3x-7)
Step-by-step explanation:
21x³ - 49x²
7(3x³ - 7x²)
7x²(3x - 7)
PLEASE HELP WITH MARK BRAINLIEST
What is the value of w?
Answer:
26
Step-by-step explanation :
73 - 47 = 26 brainliest?
BRAINLIEST
VOLUME OF A SPHERE
Answer:
[tex]\displaystyle V = 972 \pi \ ft^3[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
Volume of a Sphere Formula: [tex]\displaystyle V = \frac{4}{3} \pi r^3[/tex]
V is volumer is radiusStep-by-step explanation:
Step 1: Define
Radius r = 9 ft
Step 2: Solve for V
Substitute in r [Volume of a Sphere Formula]: [tex]\displaystyle V = \frac{4}{3} \pi (9 \ ft)^3[/tex][Volume] Evaluate exponents: [tex]\displaystyle V = \frac{4}{3} \pi (729 \ ft^3)[/tex][Volume] Multiply: [tex]\displaystyle V = 972 \pi \ ft^3[/tex]Can someone explain how to get the answer?
Answer:
A = 76
Step-by-step explanation:
Formula of the area of a triangle: [tex]A=\frac{h*b}{2}[/tex]
Formula of a rectangle: [tex]A=l*w[/tex]
So starting with the triangle...You know that the height of the triangle is 7, and the base of the triangle is 8 because the base of the rectangle is the same as the triangle's base...
Now using the formula of the triangle...
A = [tex]\frac{7*8}{2}[/tex]
= 28
Now find the area of the whole retangle...The length of the rectangle is 13 because 7+6=13; the width is 8
Now using the formula of the rectangle...
A = [tex]13*8[/tex]
= 108
Now that you have the areas of both the triangle and the retangle...Do subtraction to find the shaded area...
[tex]108 - 28 = 76[/tex]
HELP PLEASE DUE IN 3 MINUTES
Answer:
No mode ???? I'm not sure
teams of four are competing in a quarter-mile relay race. Each runner must run the same exact distance. what is the distance each teammate runs?
Please help!!!!!????
Answer:
I think it's decameter^^