The coordinates of the midpoint of CD with endpoint at C(-7,-2) and D(-3,-5) is E(-5, -3.5)
What is an equation?An equation is an expression that shows the relationship between two or more variables and numbers.
Let (x, y) represent the coordinate of the midpoint E. Point E is the midpoint of CD, hence:
x = [(-7) + (-3)] / 2 = -5
y = [(-2) + (-5)] / 2 = -3.5
Therefore the coordinates of the midpoint of CD with endpoint at C(-7,-2) and D(-3,-5) is E(-5, -3.5)
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Pls help! Step by step:)
Answer:
tan30° = [tex]\frac{5}{12}[/tex]
Step-by-step explanation:
tan30° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{5}{12}[/tex]
Answer:
[tex]\dfrac{5}{12}[/tex]
Step-by-step explanation:
[tex]\boxed{\begin{minipage}{9.4 cm}\underline{Trigonometric ratios} \\\\$\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}$\\\\where:\\ \phantom{ww}$\bullet$ $\theta$ is the angle. \\ \phantom{ww}$\bullet$ $\sf O$ is the side opposite the angle. \\\phantom{ww}$\bullet$ $\sf A$ is the side adjacent the angle. \\\phantom{ww}$\bullet$ $\sf H$ is the hypotenuse (the side opposite the right angle). \\\end{minipage}}[/tex]
From inspection of the given right triangle:
θ = 30°O = 5A = 12H = 13Substitute the values into the tan trigonometric ratio:
[tex]\implies \tan(30^{\circ})=\dfrac{5}{12}[/tex]
GUYS PLZ IM ON A TIME LIMIT IF U AWNSR FIRST I WILL GIVE 50 POINTS HURRY!!!!!
Nan’s art sculpture is a pyramid. She will cover all the faces with gems, except the base of the pyramid.
What is the surface area of the part of the pyramid that will be covered in gems?
A. 36 square meters
B. 54 square meters
C. 72 square meters
D. 81 square meters
Answer:
[tex]2 \times 3 \times 12 \\ 72 {m}^{2} [/tex]
Answer:
C. 72
Step-by-step explanation:
Triangular Area: 1/2 (b) (h)
12x3=36
36/2=18
18x4=72
I also did the test. Have a great day/night! <3
In this article, Attitudes About Marijuana and Political Views (Psychological Reports, 1973), researchers reported on the use of cannabis by liberals and conservatives during the 1970s.
To test the claim (at 1% significance) that the proportion of voters who smoked cannabis frequently was lower among conservatives, the hypotheses were:
H0:p1−p2=0(p1=p2)
Ha:p1−p2<0(p1
In the hypothesis test about cannabis use by conservatives and liberals, the test statistic was z = -4.27, with a corresponding p-value of about 0.00001.
Which conclusion is most appropriate in the context of this situation?
Answer:
The pvalue of the test is 0.00001 < 0.01, which means that we have sufficient evidence to conclude that the proportion of voters who smoked cannabis frequently was lower among conservatives than liberals.
Step-by-step explanation:
We test:
If the proportion of voters who smoked cannabis frequently was lower among conservatives than liberals.
Corresponding p-value of about 0.00001.
The pvalue of the test is 0.00001 < 0.01, which means that we have sufficient evidence to conclude that the proportion of voters who smoked cannabis frequently was lower among conservatives than liberals.
NEED HELP 20 POINTS !!
The designers of a standardized test are interested in knowing how long people take, on average, to complete the writing portion of the test. They decide to conduct an observation study at a testing facility. To avoid bias in their study, they create a list of the test takers scheduled to take the test this week. Then, they randomly select 50 test takers from the list to be part of the study.
In this situation, what does the list of test takers represent?
A. the frame
B. the population
C. a control group
D. a sample
Answer:
A. Frame
Step-by-step explanation:
This is because it does not contain the who population and it is the place where the participants of the experiment are selected. It is not the control group because this includes people who were not even in the experiment.
The list of test takers represent the frame.
A frame consist of everyone in the population that has a chance of being picked.
The population represents the individuals that the researchers is interested in conducting the research on. The population of a study has similar characters.
The sample is the person that's selected from the population and represents the population as a whole.
The control group refers to the people that didn't partake in the experimentation carried out.
Therefore, the 50 test takers from the list represents the frame.
In conclusion, the correct option is A "frame".
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Five student government officers want to go to the state convention. It will cost them $115 for registration, $365 for transportation and food, and $55 per person for the hotel. There is $485 budgeted for the convention in the student government savings account. They can earn the rest of the money they need by having a car wash. If they charge $6 per car, how many cars must they wash in order to have enough money to pay for the trip?
Answer:
45 cars
Step-by-step explanation:
115+365+(55*5) = 755
755 - 485 =270
270/6 = 45
Find the volume of this sphere.
Use 3 for T.
d=6in
V ~ [?]in3
V = Tr3
Answer:
V = 108 in³
Step-by-step explanation:
Given:
Volume of sphere = ⁴/3πr³
π = 3
d = 6 in.
r = ½(6) = 3 in.
Required:
Volume of sphere
Solution:
V = ⁴/3πr³
Plug in the values
V = ⁴/3 * 3 * 3³
V = ⁴/3 * 3 * 27
V = 4 * 27
V = 108 in³
simplify 3*15-(3+5)/4-(3-2)
Answer:
13/10
Step-by-step explanation:
edg
Given: AD bisects angle A.
Prove: ADB = ADC
Help immediately please.
Answer:
Given: AD bisects ∠A
prove: ΔABB ≅ Δ ADC
------------------------------------
statements : Reason:
1) AD bisects ∠A 1- Given
2)∠CAD ≅ ∠BAD 2- Definition of bisector.
3) AD ≅ AD 3- Reflexive property of congruence.
4) ∠CDA ≅∠BDA 4- Right angle( from figure).
5) ΔADB ≅ Δ ADC 5- ASA
[tex]---------------[/tex]
hope it helps...
have a great day!!
13. On weekends, as part of his exercise routine, Carl goes for a run, partly
C on paved trails and partly across rough terrain. He runs at 10 km/h on
the trails, but his speed is reduced to 5 km/h on the rough terrain. One
day, he ran 12 km in 1.5 h. How far did he run on the rough terrain?
Answer:
5*a+10*b=12,
a+b=1.5
Step-by-step explanation:
Evaluate the expression
Answer:
39
Step-by-step explanation:
6a - b = 6 x 8 - 9 = 48 - 9 = 39
Answer: 39
Step-by-step explanation:
Given that a=8 and b=9
The expression is 6a-b
That is; we have to find 6 times a and then subtract b from it.
6a = 6*8=48
b=9
6a-b=48-9=39
Therefore the answer to the question is 39.
Ten less than 3 times a number is the same as the number plus 4. What is the number?
Answer:
3x-10=x+4
Step-by-step explanation:
9x+12y=-108 Please solve this, but it cannot be in fraction form!!!
All you have to do is solve this by using substitution or elimination. or in this case, because we don’t have a second equation, we would solve the x-intercept and y-intercept
X=-12
Y=-9
Company A charges 125$ annual fee plus 7$ per hour car share fee. Company B charges 110$ plus 10$ per hour. What is the minimum number of hours that a car share needs to be used per year to make company a better deal?
Answer:
6
Step-by-step explanation:
Let the number of hours be [tex]x[/tex].
[tex]125+7x<110+10x \\ \\ 15+7x<10x \\ \\ 15<3x \\ \\ x>5[/tex]
So, the minimum is 6 hours.
i dont understand please help
Answer:
0.15%
hope this helps!!
The probability that tomorrow's temperature will be average is 55%. The probability that the temperature will be above average is 25%. Work out the probability that the temperature will be BELOW average
Answer:
Probability that the temperature below average = 20%
Step-by-step explanation:
Given:
Probability that tomorrow's temperature average = 55%.
Probability that the temperature above average = 25%
Find:
Probability that the temperature below average
Computation:
Probability that the temperature below average = 100% - Probability that tomorrow's temperature average - Probability that the temperature above average
Probability that the temperature below average = 100% - 55% - 25%
Probability that the temperature below average = 100% - 80%
Probability that the temperature below average = 20%
At times 6 x 10 To the six power cubic feet of water go over Niagara Falls every minute there are 1440 minutes and one day at this rate how many cubic feet of water would go over Niagara Falls in one day
Answer:
6.718464×10^13 / 67184640000000
Step-by-step explanation:
6×10^6 = 46656000000 × 1440 = 67184640000000
PLEASE HELP!
a-b+c=3
a+b+c=7
Find b.
A) 1
B) 2
C) 3
D) 4
E) 5
Answer:
b
Step-by-step explanation:
I think the day of my birthday was a little more aware of my own life than the poem I think I c I
Answer:
B
Step-by-step explanation:
Given the 2 equations
a - b + c = 3 → (1)
a + b + c = 7 → (2)
Subtract (1) from (2) term by term to eliminate a and c
a - a + b - (- b) + c - c = 7 - 3 , that is
0 + b + b + 0 = 4
2b = 4 ( divide both sides by 2 )
b = 2 → B
There is a raffle for the class of 30
students. There are 3 prizes that are gift
cards for the value of $5, $10 and $25.
How many ways can there be 3 winners of
this raffle?
Answer:
Having 3 students pick a raffle
Step-by-step explanation:
hmm... i wonder what's 1+1 =
Answer:
2
Step-by-step explanation:
1+1 = 2
Use Special Triangle Shortcuts to find the values of x and y in the first figure. Explain how you determined the length of segments x and y using 2-3 sentences or explain your steps used to find the values.
Answer:
Solution given:
short cut to find x
Tan 30°=P/B
Tan30°=x/22√3
x=tan 30×22√3
x=22
and
for y
cos 30=B/H
cos30×y=22√3
y=22√3/cos30
y=44
step by step pls not only one thing
9514 1404 393
Answer:
C
Step-by-step explanation:
These are not line plots; they are dot plots. Each dot (×) represents one data point. The dot is placed above the corresponding value on the horizontal axis. There are 7 data points, so should be 7 dots. 3 of the data points are 3/4 hour.
Only plots C and D show 7 data points. Only plot C shows three of those data values being 3/4 hour. Plot C is the correct choice.
A 1948 study in Biometrika investigated the effects of several different diets on the weight of chickens. In this study, chickens were randomly assigned to one of several different groups, and each group of chickens received a different type of feed. The data provided represent a subset of data from this study and show the weights (in grams) of chickens receiving the sunflower, meatmeal, soybean, and casein feeds.
Use software to conduct an analysis of variance (ANOVA) ????F‑test to test the claim that the mean weights of chickens receiving sunflower, meatmeal, soybean, and casein are equal. What are the ????F‑statistic and pp‑value for this test? Please round your ????F‑statistic to the nearest two decimal places and your pp‑value to the nearest five decimal places.
1. ????F‑statistic :
2. pp‑value :
Based on the pp‑value for this ANOVA ????F‑test, select the correct conclusion at the ????=0.05α=0.05 level.
a. Since the pp‑value is greater than ????=0.05α=0.05, there is little evidence of a difference in the mean weights of chickens receiving the sunflower, meatmeal, soybean, and casein feeds.
b. Since the pp‑value is less than ????=0.05α=0.05, there is significant evidence of a difference in the mean weights of chickens receiving the sunflower, meatmeal, soybean, and casein feeds.
c. Since the pp‑value is less than ????=0.05α=0.05, there is little evidence of a difference in the mean weights of chickens receiving the sunflower, meatmeal, soybean, and casein feeds.
d. Since the pp‑value is greater than ????=0.05α=0.05, there is significant evidence of a difference in the mean weights of chickens receiving the sunflower, meatmeal, soybean, and casein feeds.
weight feed
368 1
390 1
379 1
260 1
404 1
318 1
352 1
359 1
216 1
222 1
283 1
332 1
325 2
257 2
303 2
315 2
380 2
153 2
263 2
242 2
206 2
344 2
258 2
243 3
230 3
248 3
327 3
329 3
250 3
193 3
271 3
316 3
267 3
199 3
171 3
158 3
248 3
423 4
340 4
392 4
339 4
341 4
226 4
320 4
295 4
334 4
322 4
297 4
318 4
hope this helps!! ^.^ -
Answer: F: 5.90, P: 0.00175, p-value is less than 0.05, so there is significant evidence
Step-by-step explanation:
Jamie is going to run a 3-mile race. Using the information in the table above, how many inches are in 3 miles?
A.
189,980
B.
190,070
C.
189,080
D.
190,080
Im confused, please help
Answer:
8 x 6 = 48, 48 divided by 2 (x 1/2) = 24 , 24 x 2(there are two triangles) = 48
12 x 10 = 120
8 x 12 = 96
12 x 6 = 72
Now let's add all the given areas:
48 + 120 + 96 + 72 = 336 ft^2 is your answer.
Work out
a) 4 1/3x6
B) 2 3/5 x 3 1/3
Give Answers as mixed numbers
Answer:
Solution of the given expression is 26
Solution of the given expression is 8.67
Step-by-step explanation:
Given:
a] [tex]4\frac{1}{3} \times 6[/tex]
b] [tex]2\frac{3}{5} \times 3\frac{1}{3}[/tex]
Find the solution;
Computation:
a] [tex]4\frac{1}{3} \times 6[/tex]
Step 1 ;
Changed mixed fraction into simple fraction
⇒ 13/3 x 6
Step 2 ;
⇒ 13 x 2
26
Solution of the given expression is 26
b] [tex]2\frac{3}{5} \times 3\frac{1}{3}[/tex]
Step 1 ;
Changed mixed fraction into simple fraction
⇒ (13/5) x (10/3)
Step 2 ;
⇒ 130 / 15
8.67
Solution of the given expression is 8.67
Round 0.25773438 to the nearest hundredth
Answer:
The answer is 0.26.
I wish you luck on your assignments.
Answer: 0.26
Step-by-step explanation:
1. The hundredths place is two digits from the decimal point
2. Look at the thousandths place and if it is larger or equal to 5 then we round up, otherwise we round down and the hundredths digit remains the same
3. 7 is larger than 5 therefore the hundredths place digit of 5 rounds to a 6
4. Our final answer is 0.26
A gym membership is $28 to join and $10 paid monthly.
Create a table to represent this scenario, then create an equation.
Enter your answers in the boxes.
Months Purchased Total Cost ($)
0 28
1
38
2
48
3
58
4
68
The equation to represent this scenario is y =
x +
.
Answer:
sorry needed points so sorry
Step-by-step explanation:
Jessle served 11 pints of orange Juice at her party. How many quarts of orange juice did she serve?
Plz help me well mark brainliest if correct!!
the probabiliity of getting exactly one tail is?
Answer:
50%
Step-by-step explanation:
assuming you are talking about one coin flip (because you didn't specify) you have a 50% chance to land on tails