Answer:
D)
[tex](0.64 +1.645 \sqrt{\frac{0.64(0.36)}{50} })[/tex]
90 percent confidence interval for the proportion of all students in her district who read at least 1 book last month
(0.52846 , 0.75166)
Step-by-step explanation:
Step:-1
Given that the random sample size 'n' = 50
The sample proportion
[tex]p^{-} = \frac{32}{50} = 0.64[/tex]
90 percent confidence interval for the proportion of all students in her district who read at least 1 book last month
[tex](p^{-} - Z_{0.90} \sqrt{\frac{p(1-p)}{n}, } , p^{-} +Z_{0.90} \sqrt{\frac{p(1-p)}{n} })[/tex]
Step(ii):-
Level of significance = 0.90
Z₀.₉₀ = 1.645
[tex](0.64 - 1.645 \sqrt{\frac{0.64(1-0.64)}{50}, } , 0.64 +1.645 \sqrt{\frac{0.64(1-0.64)}{50} })[/tex]
[tex](0.64 - 1.645 \sqrt{\frac{0.64(0.36)}{50}, } , 0.64 +1.645 \sqrt{\frac{0.64(0.36)}{50} })[/tex]
(0.64 -1.645(0.06788) , (0.64 + 1.645(0.06788)
(0.52846 , 0.75166)
Final answer:-
90 percent confidence interval for the proportion of all students in her district who read at least 1 book last month
(0.52846 , 0.75166)
4. Mia ran 10 laps in 8 minutes. Shawna ran 4 laps in 3 minutes. Which person ran at a faster rate? * O Mia ran at a faster rate. Sawna ran at a faster rate. O They both ran at the same rate.
Answer:
Shawna ran at a faster rate.
Step-by-step explanation:
Because of Shawna ran for 10 minutes just like Mia, it would take her 7.5 mins while Mia took 8minutes to run 10 laps
Find the quotient. 4^r ÷ 4^s
What you think is fair punishment for a traitor of a country
A fair punishment I believe is the person going to prison for their life or a death sentence.
solve for t
–9.96 + 9.9t = 1.54 + 7.7t + 7.2t
Answer: -2.3
Step-by-step explanation:
–9.96 + 9.9t = 1.54 + 7.7t + 7.2t
–9.96 + 9.9t = 1.54 + 14.9t
-9.96 - 5t = 1.54
-5t = 11.5
t = -2.3
Find an
expression which represents the sum of (8x - 7) and (10x + 3) in
simplest terms.
80x + 24x × 70x + 21 = 3.4 when approximated
Please give me a real answer or I will report you I dont want to friend you just put the answers in the comments
Answer:
j = 17.32 sq rt 3 or 30
Step-by-step explanation:
sin 60 = j/20sq rt 3
0.8660 = j/20sq rt 3
j = 17.32 sq rt 3
Answer:
Step-by-step explanation:
cos30 = j / 20√3
j = (20√3)cos30
j = (20√3)(½√3)
j = 30
Which of the following has a unit price (price per item) of $0.25? Choose 2. *
1 point
5 pieces of candy for $1.20
8 pieces of candy for $2.00
7 pieces of candy for $1.70
6 pieces of candy for $1.50
Answer:
8 pieces/$2.00
6 pieces/$1.50
Step-by-step explanation:
The word and in probability implies that we use the ________ rule.
Answer:
Addition Rule
The word or in probability implies that we use the Addition Rule.
The word "and" in probability implies that we use the "Multiplication Rule".
The Multiplication Rule is used when calculating the probability of two or more independent events occurring simultaneously.
It states that the probability of two or more independent events occurring together is equal to the product of their individual probabilities.
In other words, if event A and event B are independent, then the probability of both events A and B happening is given by:
P(A and B) = P(A) x P(B)
Learn more about Probability here:
https://brainly.com/question/31828911
#SPJ6
giving brainliest !! *easy*
ih4egjhbsDLJFB sFHBseiuhFB skefByefusj:FKBs:iuyeGFBsjk :efge8FUIsj
Answer:
v = 49 pied square cm squared x 4 cm
Step-by-step explanation:
A researcher has a colony of bongo spiders in his lab. There are 1200 adult spiders in the colony, and their weights are normally distributed with a mean of 11 grams and a standard deviation of 2 grams.
a) about what percent of spiders in the colony weigh between 7 grams and 13 grams?
b) about what percent of spiders in the colony weigh less than 9 grams?
c) What is the z-score of a spider in this colony that weighs 15 grams?
d) Approximately 68% of all the spider weights would occur between what two weights.
Approximately 68% of all the spider weights would occur between ______and _______grams.
e) What percent of spiders in the colony weigh more than 15 grams?
REAL ANSWERS ONLY!
simply:
-24d⁵z⁴/ 18d-⁵z⁴
write your answer with only positive exponents
Answer:
-24d^10/18
Step-by-step explanation:
-24d⁵z⁴/ 18d-⁵z⁴
The two z⁴ cancel out, and when dividing exponents you subract them.
d⁵-d-⁵=d^10
Put it all together and you get
-24d^10/18
A fruit bowl contains apples, oranges, and bananas. The radius of one of the oranges is 1.45 inches. What is the approximate volume of the orange? Use 3.14 for .
Answer:
12.76 in³
Step-by-step explanation:
The volume of a sphere formula is V = (4/3)πr³.
Here we use 3.14 for π and 1.45 in for r. We get:
V = (4/3)(3.14)(1.45 in)³ ≈ 12.76 in³
write two numbers that multiply to the value on top and add to the value on bottom
Answer:
4 and 10
Step-by-step explanation:
4 x 10 = 40
4 + 10 = 14
In this diagram, AC and AB are
tangent to o 0. The measure of BOC
is 265º and the measure of BC is 95'.
What is the measure of CAB?
Answer:
angle CAB = 85 degrees
Step-by-step explanation:
angle CAB = 1/2(265-95)
angle CAB = 85 degrees
Michael cut 1/5 from a round dessert.Isrel cut a pice from the same dissert with an angle measure of 45 degrees who cut the larger piece?
Answer:
Michael cut the lrger piece
Step-by-step explanation:
a circle has 360 degrees
360:5=72° -> michaels piece
45°<72°
Step-by-step explanation:
Michael cut 1/5 of a round dessert.
Round dessert is a circke so total angle in 360.
Now, 1/5 of 360 = 360/5 = 72
72 > 45
So Michael cut the larger piece.
Triangle FGH is dilated by a scale factor of 5 to form triangle F'G'H'. Side F'G'
measures 15. What is the measure of side FG?
Answer:
The measure of side FG is 3.
Step-by-step explanation:
Dilation is a process in which the dimensions of a given shape or figure is either increased or decreased by a scale factor to produce its image.
From the given question,
scale factor = 5
measure of side F'G' = 15
Thus,
scale factor = [tex]\frac{measure of side F'G'}{measure of side FG}[/tex]
side F'G' = scale factor x side FG
⇒ 15 = 5 x side FG
So that,
side FG = [tex]\frac{15}{5}[/tex]
= 3
The measure of side FG is 3.
Use the long division method to find the result when 6x3 – 22x2 + 19x - 8 is
divided by 3x-8. If there is a remainder, express the result in the form
q(x) + r(x)
——
b(x)
Answer:
5964672
Step-by-step explanation:
if this isn't the answer then I don't know what it is I'm not 100% sure
The Polygons are similar. Solve for x
10
9
6
12
Step-by-step explanation:
[tex] \frac{ - 2 + 7x}{32} = \frac{25}{20} [/tex]
[tex] \frac{ - 2 + 7x}{32} = \frac{5}{4} [/tex]
4(-2+7x) = 5(32)
-8 + 28x = 160
28x = 160+8
28x = 168
x = 168/28
= 42/7
= 6
What is the value of y for the point with an x-value of 5?
Answer:
Y would be 6
Step-by-step explanation:
it's shown in the graph that when you go to the x value of 5 and follow it the only point there is (5,6) so the answer is 6
Convert to a mixed number and simplify 83/6 pls help pls give a explanation so i can understand pls thank you.
what are square roots?
Answer:
Step-by-step explanation:
Square roots are the values which when multiplied by themselves are the value in the radical.
2X2=4
So the square root of 4 is 2
3X3=9
So the square root of 9 is 3
...
Lani had a box that contained: 1 blue marble 1 green marble 1 purple marble 1 yellow marble 2 red marbles Lani removed one marble without looking and she recorded the result. She placed the marble back in the box and repeated the procedure one more time. What is the probability that she removed a red marble followed by a blue marble?
Answer:
16.66 and 0.33 im pretty sure
Step-by-step explanation:
The difference of two numbers is 3. Their sum is 13. Find the numbers.
Answer:
8 and 5
Step-by-step explanation:
Answer:
8 and 5
Step-by-step explanation:
PLEASE ANSWER THE QUESTION CORRECTLY, I’LL GIVE YOU BRANLIEST! Please answer my other math questions if you solve this one, thanks.
Answer:
true
Step-by-step explanation:
A mirror is the shape of an ellipse defined by y^2/7.29 + x^2/6.25 = 1 with units in feet. Which statement identifies the
orientation of the mirror and its greatest dimension?
Answer:
a (The mirror has a vertical orientation and is 5.4 ft tall.)
Step-by-step explanation:
a on edg 2021 ^u^
Answer: A. The mirror has a vertical orientation and is 5.4 ft tall.
Step-by-step explanation:
Since the y^2 value is being added first, and the value in its denominator is greater, we know that the ellipse has a vertical major axis.
Therefore, its orientation is vertical.
The square root of is 7.29, so 2.7 is the distance from the center to one of the ellipse's vertices. (You can research further into the equation for ellipses with vertical major axes to learn why that is.)
Multiply 2.7 * 2 = 5.4 to determine the full height of the mirror.
Yay! We figured out that "the mirror has a vertical orientation and is 5.4 ft tall".
Help Me Please...............(2)
Answer:
-0.499
Step-by-step explanation:
Isnt that it? xD
or 1.41
If angle 2 measures 75 degrees, how many degrees is angle 4?
Need help plz!!!!!!!!???????
Answer:
x=16º
Step-by-step explanation:
The sum of angles in a triangle is 180º.
So,
39 + 125 + x = 180
Solve for x.
164 + x = 180
x = 180-164
x= 16
What does x=
Help quickly, please!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
see in the picture, we can see that SPRQ is a parallelogram
=> 70 = 14x
⇔ x = 70/14
⇔ x = 5
Step-by-step explanation:
please...... !!!!!!!
Answer:
Answer is 5
Step-by-step explanation:
I did math that's explaining.
Answer:
for 15 i think its B, 70 + 20w greater/equal to 150