Answer:
240
I think I'm not sure but try
Answer:
C. 8
Step-by-step explanation:
Just took the test (edge)
Good luck soldiers
Find RS.
R
S
22
X
Q
T
26
I don’t know how to do this one.
Answer:
RS is about 18.615
Step-by-step explanation:
since XY is the midsegment, it is parallel to the other 2 lines. That also makes the lines proportional
[tex]\frac{22}{26} =\frac{x}{22}[/tex]
cross multiple
484=26x
x= 18.615
(12x + 3) + (-7x+ 5)
Answer:
5x+8
Step-by-step explanation:
We have to distribute the + into -7x+5. So the equation will now be 12x+3-7x+5. Now let's organize it into terms. 12x-7x+3+5. Now let's simplify this. The final answer is 5x+8. That is the final answer!
Hope this helped!!! :D
pls help I'll mark brainliest
.38, .37, and .36 are all less than 1
PLEASE HELP!!!!! !!!!!!!!!!!!
Answer:
31.9secs
6,183.3m
Step-by-step explanation:
Given the equation that models the height expressed as;
h(t ) = -4.9t²+313t+269
At the the max g=height, the velocity is zero
dh/dt = 0
dh/dt = -9,8t+313
0 = -9.8t + 313
9.8t = 313
t = 313/9.8
t = 31.94secs
Hence it takes the rocket 31.9secs to reach the max height
Get the max height
Recall that h(t ) = -4.9t²+313t+269
h(31.9) = -4.9(31.9)²+313(31.9)+269
h(31.9) = -4,070.44+9,984.7+269
h(31.9) = 6,183.3m
Hence the maximum height reached is 6,183.3m
What is the domain of the following parabola?
You are interested in the psychological implications of high SES. You read a paper that claims that higher social class people behave more unethically. The paper reports a significant difference in the propensity of high and low SES people behaving unethically. The significance level of this study was 0.05, the ratio of true to false effects in this field is 0.35, but the author was anxious to issue a press release and prepare his TED talk, so power is low, at 0.1. The probability that this study reports a real effect is
Answer:
Option C. The real effect is 0.1
Step-by-step explanation:
The complete question is
You are interested in the psychological implications of high SES. You read a paper that claims that higher social class people behave more unethically. The paper reports a significant difference in the propensity of high and low SES people behaving unethically. The significance level of this study was 0.05, the ratio of true to false effects in this field is 0.35, but the author was anxious to issue a press release and prepare his TED talk, so power is low, at 0.1. The probability that this study reports a real effect is
A. 0.58
B. 0.95
C. 0.1
D. 0.35
E. 0.41
Solution
Ratio of true to false effects i.e T/F = 0.35
The power of the study indicates the real effect of the study and hence despite the true/false ration being 0.35 and the significance level of study is 0.05, the real effect of the study would be 0.1
Hence option C is correct
Formula to find commission
A commission is a percentage of total sales,
multiply the rate of commission by the total sales
Annabelle went to the grocery store and bought bottles of soda and bottles of juice.
Bach bottle of soda has go grams of sugar and each bottle of Juice has 10 grams of
sugar. Annabelle purchased 3 times as many bottles of juice as bottles of soda and
they all collectively contain 120 grams of sugar. Graphically solve a system of
equations in order to determine the number of bottles of soda purchased, w, and the
number of bottles of julce purchased,y
Answer:
120 = 3y + t
Step-by-step explanation
because you purchase 3 times as many y then t. Overall, your answer should end up as 120 by using an equation like this.
(2v-3u)-(v-4u)+(v+4u)
Answer:
2v + 5u
Step-by-step explanation:
A professor of women's studies is interested in determining if stress affects the menstrual cycle. Ten women are randomly sampled for an experiment and randomly divided into two groups. One of the groups is subjected to high stress for two months while the other lives in a relatively stress-free environment. The professor measures the menstrual cycle (in days) of each woman during the second month. The following data are obtained.
High stress 20 23 18 19 22
Relatively stress free 26 31 25 26 30
1. The obtained value of the appropriate statistic is ____.
A. tobt = -4.73.
B. tobt = -4.71.
C. tobt = -3.05.
D. tobt = -.047.
2. The df for determining tcrit are ____.
A. 4.
B. 9.
C. 8.
D. 3.
3. Using a = .052 tail, tcrit = ____.
A. +- 2.162.
B. +- 2.506.
C. +- 2.462.
D. +- 2.306.
4. Using a = .052 tail, your conclusion is ____.
A. Accept H0; stress does not affect the menstrual cycle.
B. Retain H0; we cannot conclude that stress affects the menstrual cycle.
C. Retain H0; Stress affects the menstrual cycle.
D. Reject H0; stress affects the menstrual cycle.
Answer:
-4.73
8
±2.306
D. Reject H0; stress affects the menstrual cycle.
Step-by-step explanation:
Samples:
High stress 20 23 18 19 22
Relatively stress free 26 31 25 26 30
Using calculator :
Mean, x1 = 20.4 ; n = 5 ;
Standard deviation, s1 = 2.07
Mean, x2 = 27. 6; n = 5 ;
Standard deviation, s2 = 2.70
The test statistic :
(x1 - x2) / sqrt[(s1²/n1 + s2²/n2)]
(20.4 - 27.6) /sqrt[(2.07²/5 + 2.7²/5)]
-7.2 / 1.523 = - 4.73
Df = n1 + n2 - 2
df = 5 + 5 - 2 = 8
From t-value distribution :
df = 8 ; α = 0.052
Tcritical = +- 2.306
|Tstatistic | > | Tcritical | ; Reject H0
fast plaese tysm will give brainliest
Answer:
I think the answer is 2/45 :)
pls help me loves :((
Answer:
609 m²
Step-by-step explanation:
Area of unshaded:
(6 x 18) + ((13-6) x 7) = 157
Area of overall rectangle:
36 x 28 = 1008
Area of the chunck of rectangle not included:
11 x 22 = 242
Area of shaded:
1008 - 157 - 242 = 609
( NEED HELP ASAP )
Drews fish tank measures 32 cm by 22 cm by 26 cm. He pours 20 liters of water into it, and some overflows the tank. Find the volume of water, in milliliters, that overflows.
Answer:
the answer to the question is 1,696
Step-by-step explanation:im sorry i dont have an exsplanation but its that trust me
4 divided by 6,583
Answer:
1645.75 i think
Step-by-step explanation:
Answer:
dude, you have a calculator for a reason
Step-by-step explanation:
0.0006076257 that's the answer btw hope that helps
Ms. Jimenez surveyed 430 men and 200 women about their vehicles. Of those surveyed, 160 men and 85 women said that they own a white vehicle.
Find P(White)'.
A. 16/43
B. 11/18
C. 23/77
D. 3/7
Answer:
Step-by-step explanation:
Which number sentence is true?
4.05<0.45
0.45>0.5
4.05=0.45
0.45<0.5
Answer: 0.45 < 0.5
Step-by-step explanation:
On a map, 1 inch equals 15 miles. Two cities are 2 inches apart on the map. What is the actual distance between the cities?
4a - 2b = 10
write down the value of 2b-4a
Answer:I think 11 will be the answer
Solve the following quadratic function by utilizing the square root method. y = 16 – 4x2
Answer:
we have
y=16-4x²
4x²=16
x²=[tex]\frac{16}{4}[/tex]
x=[tex]\sqrt{4}[/tex]
x=±2
Let's do
y=16-4x²Let y be 0
-4x²+16=0-4x²=-164x²=16x²=4x=±2Michael's bank account opened with $100. 5 weeks after opening, his account balance was $250.
At this rate, how much money will he have 10 weeks after opening the account?
please help !! i’ll give 5 stars if help.
Answer:
true
Step-by-step explanation:
there are two x-intercepts
Find the greatest common factor of these two expressions.
18u^4 v^7
and
12u^6 x^8 v^5
Answer:
Factor each coefficient into primes. Write all variables with exponents in expanded form.
List all factors—matching common factors in a column. ...
Bring down the common factors that all expressions share.
Multiply the factors as in (Figure).
The greatest common factor of the two of the given expression 18u⁴v⁷ and 12u⁶x⁸v⁵ is 6u⁴v⁵.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The highest common factor (HCF) is discovered by identifying all common factors of two integers and then picking the greatest one.
The two of the given expression in terms of factors can be written as,
18u⁴v⁷
= 2 × 3 × 3 × u × u × u × u × v × v × v × v × v × v × v
12u⁶x⁸v⁵
= 2 × 2 × 3 × u × u × u × u × u × u × x × x × x × x × x × x × x × x × v × v × v × v × v
Now, the common factors between the two of the given expressions are,
Common factors = 2 × 3 × u × u × u × u × v × v × v × v × v × v = 6u⁴v⁵
Hence, the greatest common factor of the two of the given expression 18u⁴v⁷ and 12u⁶x⁸v⁵ is 6u⁴v⁵.
Learn more about Expression here:
https://brainly.com/question/13947055
#SPJ2
50 POINTS PLEASE HELP
A normal work day for Carl is from 8:00 a.m. to 4:30 p.m. Carl wants to figure out the degree measure that the hour hand makes while he is at work. Carl believes that if he divides 360 by 12 and multiplies the result by 8.5 he will have the correct degrees the hour hand moves. Is Carl correct? If not, choose the appropriate explanation.
A
Yes, Carl is correct. The process he takes will give him the correct degrees the hour hand moves.
B
No, Carl is incorrect. He must take the number he ends up with and subtract it from 360.
C
No, Carl is incorrect. The hour hand will go around the clock 360 degrees.
D
No, Carl is incorrect. He must first multiply 360 by 12 and then divide by 8.5.
Answer:
The answer is B brainliest?
Step-by-step explanation:
Ben found 6 tops to add to his 7 tops in his collections. he then had a competition with his friends and quadrupled his tops. I Have To Write a numerical expression to model this situation without performing any operations but I'm Just So Confused Can You Help Me Please.
Answer:
gggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg
Step-by-step explanation:
a cylinder has a diameter of 12 and height of 12. the volume of the cylinder is:
A. 1728π cubic units
B. 288π cubic units
C. 144π cubic units
D. 432π cubic units
Can someone help me with this ?
Nicholas wants to buy a laptop that costs $485.30. He has $186.80 in savings. How
much does he have to save each month if he wants to buy the laptop in three more
months?
F $99.50
G $92.30
H $87.50
$90.50
Which values make this equation true?
√m + √n = √p
Answer:
all Real numbers?
Step-by-step explanation:
with each pair of (m;n) we have one value of p
he wait time (after a scheduled arrival time) in minutes for a train to arrive is Uniformly distributed over the interval [0,15]. You observe the wait time for the next 95 trains to arrive. Assume wait times are independent. Part a) What is the approximate probability (to 2 decimal places) that the sum of the 95 wait times you observed is between 670 and 796
Answer:
81.74% probability that the sum of the 95 wait times you observed is between 670 and 796
Step-by-step explanation:
To solve this question, the uniform probability distribution and the normal probability distribution must be understood.
Uniform distribution:
A distribution is called uniform if each outcome has the same probability of happening.
The distribution has two bounds, a and b.
Its mean is given by:
[tex]M = \frac{b - a}{2}[/tex]
Its standard deviation is given by:
[tex]S = \sqrt{\frac{(b-a)^2}{12}}[/tex]
Normal distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
n instances of the uniform distribution can be approximated to the normal with [tex]\mu = nM[/tex], [tex]\sigma = S\sqrt{n}[/tex]
Uniformly distributed over the interval [0,15].
This means that:
[tex]M = \frac{15 - 0}{2} = 7.5[/tex]
[tex]S = \sqrt{\frac{(15-0)^2}{12}} = 4.33[/tex]
95 trains
[tex]n = 95[/tex], so:
[tex]\mu = 95M = 95*7.5 = 712.5[/tex]
[tex]\sigma = S\sqrt{n} = 4.33\sqrt{95} = 42.2[/tex]
What is the approximate probability (to 2 decimal places) that the sum of the 95 wait times you observed is between 670 and 796?
This is the pvalue of Z when X = 796 subtracted by the pvalue of Z when X = 670. So
X = 796
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{796 - 712.5}{42.2}[/tex]
[tex]Z = 1.98[/tex]
[tex]Z = 1.98[/tex] has a pvalue of 0.9761
X = 670
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{670 - 712.5}{42.2}[/tex]
[tex]Z = -1[/tex]
[tex]Z = -1[/tex] has a pvalue of 0.1587
0.9761 - 0.1587 = 0.8174
81.74% probability that the sum of the 95 wait times you observed is between 670 and 796
COMPARE using >, < or = and then explain your answer: -11__ -12.
HELP ME OUT FOR A
Answer:
-11 > - 12 (because on a number line, -11 is closer to 0)
-2/3 > -5/6 (because on a number line, -11 is closer to 0)
I -22 l = 22 (because absolute value makes the -22 into 22)
l -450 l > - 450 (because absolute value makes -450 into 450)
