Answer:
Answer: a = 140°, b = 40° and c = 140°
Step-by-step explanation:
Angles a° and c° are also vertical angles, so must be equal, which means they are 140° each. Answer: a = 140°, b = 40° and c = 140°. Note: They are also called Vertically Opposite Angles, which is just a more exact way of saying the same thing.
Running the last lap of a 4 x 100-meter relay, Bob takes the baton for his team and pursues his opponent already 20 meters ahead of him. If Bob runs at an average speed of 8 meters per second and his opponent only runs 6 meters per second, will Bob overtake him and win the race? If he does not catch him, how close does he get before the opponent crosses the finish line? If he does catch him, how many seconds and how many meters will it take?
Answer:
v1 t = distance Bob travels
v2 t + 20 = distance opponent travels
v1 t = v2 t + 20
t = 20 / (v1 - v2) = 20 / (8 - 6) = 10 sec
In 10 sec Bob runs 80 m
In 10 sec opponent runs 20 + 60 m = 80 m
please help!! True or false??
HELP ASAP!!! I’m confused and need help guys!!! Thanks!!
Answer:
Triangle 2
Step-by-step explanation:
5, 12, 13
Use the Pythagorean Theorem
a^2 + b^2 = c^2
a = 5
b = 12
c = 13
25 + 144 = 169
a and b are side lengths
c is the hypotenuse
The theorem states that the square of the side lengths of a right triangle added together equals the square of the hypotenuse
Answer:
B is the right triangle because the sum of the square of each of the two shortest sides will equal the square of the longest side.
Step-by-step explanation:
Pythagorean Theorem says if a triangle is a right triangle with side lengths a, b, and c, then a^2 + b^2 = c^2 where c is the length of the longest side.
So, A. 16^2= 7^2 + 12^2 256 does not = 193 NOT a right triangle
B. 13^2= 5^2 + 12^2 169 = 169 Yes this is a right triangle
C. 9^2= 4^2 + 5^2 81 does not = 41 NOT a right triangle
D. 19^2= 8^2 + 15^2 361 does not = 289 NOT a right triangle
Identify the solid from the net below *
The solid from the net is a cube
Answer: Cube
A cube has 6 faces, which makes this net accurate.
Can someone help me simplify and write in power form and show me step by step how to do it for both problem 8 and 9?
Answer:
[tex]\frac{-1.1x^{25} }{-1.1x^{11} }[/tex] [tex]\frac{mx^{67} }{mx^{37} }[/tex]
Step-by-step explanation:
Sine (-1.1) is the same as (-1.1) you just put them together and if the numbers are by each other you just add up the exponents. But if the question says this [tex]\frac{-1.1x^{2} }{-1.1x^{3} }[/tex] than you subtract the exponents.
·[tex](-1.1)x^{13}X (-1.1)x^{12} = add\\\frac{-1.1x^{2} }{-1.1x^{2} } = subtract[/tex]
Hope this helps. Have a blessed day :)
Helpppp!! Timed !!!!!
Answer:
the last one
Step-by-step explanation:
Answer:
hi
Step-by-step explanation:
i think so,it is D
hope it helps
have a nice day
an economics professor gives a test to gauge the math preparedness of his students. he believes that the performance on the test and the number of hours studied are the main factors. for a group of 60 students we have what is the predicted final exam score
Answer:
hello your question is incomplete, the missing part of the question is attached below
answer :
1) β1 = 0.25
β2 = 4.85
2) 40.55 + 0.25 ( math score ) + 4.85 ( hours )
Step-by-step explanation:
1) The estimate for β1 and β2
From the attached excel result the estimates are ;
β1 = 0.25 : This shows the change in the mean value of the final score in relation to the change in math score while the time is kept constant
β2 = 4.85 : This represents the change in the mean value of the final score in relation to the change in time while the math score is held constant
2) sample regression equation
The Final sample regression equation = 40.55 + 0.25 ( math score ) + 4.85 ( hours )
Please help! I will give brain list also if you mind(you don’t have to) but may you explain?
Also I report people who add links :)
Answer:
2. 8/10 is bigger
3. 7/8 is bigger
4. 1/2 is bigger
5. 8.12 is bigger
6. 4/6 is bigger
7. 7/12 is bigger
Step-by-step explanation:
What is the minimum z-score that a data point could have in order to remain in the top 30% of a set of data? Round your answer to two decimal places.
The minimum z-score that a data point could have to remain in the top 30% of the data is 0.52.
We have,
To find the minimum z-score that a data point could have to remain in the top 30% of a set of data, we need to find the z-score that corresponds to a cumulative probability of 0.70 (since the top 30% is equivalent to the cumulative probability of 0.70).
Using a standard normal distribution table or a statistical calculator, we can find that a cumulative probability of 0.70 corresponds to a z-score of approximately 0.52 (rounded to two decimal places).
Therefore,
The minimum z-score that a data point could have to remain in the top 30% of the data is 0.52.
Learn more about z-score here:
https://brainly.com/question/15016913
#SPJ2
Helppppppppppppppppppppppppppp
Answer:
126 [tex]m^{2}[/tex]
Step-by-step explanation:
Find the perimeter. Round to the nearest whole number.
15 is c and 30 is a)
Answer:
45
Step-by-step explanation:
Hope this helps.
plz plz plz help ill give brainly
Answer:
Width is 3
Step-by-step explanation:
_____________
/ / |
/ ______________/ |
2.5| | |
f | | |
e | | |
e | | |
t | | |
| | /
| | /
|______________|/ 3 feet
4 feet
Can someone please help me I will mark u brilliant
Answer:
The answer is 11
Step-by-step explanation:
What is the value of x in the equation 2(x-3)+9=3(x+1)+x?
с Of
O x= -3
x = -1
Ο Ο
O x = 0
x= 3
Answer:
The answer is x=0
Step-by-step explanation:
2(0-3)+9=3(0+1)+(0)
2(-3)+9=3(1)+0
-6+9=3
3=3
Yes
20 points for both questions
Answer:
first is 30 2nd was 18
Step-by-step explanation:
Answer:
1st on is A second is c
Step-by-step explanation:
A quiz consists of five multiple choice questions. Each question has four choices. A student who forgot to study guesses randomly on every question What is the probability that the student answers exactly three questions correctly?
Answer:
1/64
Step-by-step explanation:
probability of getting one question correct is 1/4
P(3 questions correct): 1/4 · 1/4 · 1/4
Help please ?
Write a quadratic equation in standard form with the given root(s) -5,1/2
Answer:
2x^2+9x-5
Step-by-step explanation:
(X+5)(x-1/2)
x^2-1/2x+5x-5/2
x^2+9/2x-5/2
multiply through by 2
2x^2+9x-5
If the measure of CD is 45°, what is the arc
length of CD?
C С
18 cm
Answer:
9/2π cm is the correct answer.
Step-by-step explanation:
Arc Length of CD: 1/8 (36π)= 36/8π = 9/2 π cm.
Find the value of k for which x-7 is a
factor of f(x) = x3 - 6x2 + kx - 7. State
the remainder when f(x) divided by X-5.
Answer:
answer is in the picture above
It costs y dollars to buy x cans of tomatoes. What is the constant of proportionality?
Answer
1 and 0.89
Step-by-step explanation:
idrk tho
Which describes the effect of the transformations on the graph of f(x) = x^2 when changed to f(x) = 3(x+2)^2 - 4
GIVING OUT BRAINLIEST ANSWER !! PLS HELP ME OUT !! (last minute)
Answer:
.764
Step-by-step explanation:
do it on a calculator (TI84)
Answer:
45.6°
Step-by-step explanation:
take the inverse cosine of 7/10: [tex]cos^{-1}(\frac{7}{10})[/tex]
plug it into a graphing calc and you get ≈ 45.573°, they want 1 decimal place so it would be ≈ 45.6°
Please answer ASAP! If 0 is an angle in quadrant II, what is the value of sin(0)
Answer:
Option A
Step-by-step explanation:
It's given that cosθ = [tex]-\frac{2\sqrt{5} }{5}[/tex]
Since, cosθ = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex] = [tex]-\frac{2\sqrt{5} }{5}[/tex]
= [tex]\frac{2}{\sqrt{5}}[/tex]
By applying Pythagoras theorem in the right triangle,
(Hypotenuse)² = (Opposite side)² + (Adjacent side)²
(√5)² = (Opposite side)² + (2)²
5 = (Opposite side)² + 4
Opposite side = √(5 - 4)
= 1
Since, sinθ = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
= [tex]\frac{1}{\sqrt{5}}[/tex]
Since, sine is positive in IInd quadrant,
sinθ = [tex]\frac{1}{\sqrt{5}}[/tex]
Therefore, option A will be the answer.
What is the exponential form of the following expression? (-5)(-5)(-5) . c . c .c
(-5) . C3
(-5)3 . 3c
(-5)3 . c3
(-5) . c6
need help fast pls?
Answer:
[tex](-5)^3 * c^3[/tex]
Step-by-step explanation:
Given
[tex](-5)(-5)(-5) * c * c * c[/tex]
Required
The exponent form
We have:
[tex](-5)(-5)(-5) * c * c * c[/tex]
Apply the following law of indices;
[tex]x * x * x ...... = x^n[/tex]
So, the expression becomes:
[tex](-5)^3 * c^3[/tex]
Answer:
its c
Step-by-step explanation:
Did it on edge
what is the surface area of the right cylinder below. radius 3 height 7
Answer:
160 sq. uits
Step-by-step explanation:
160 sq. uits é a resposta
A bottle contains 1/3 of water if it's is poured equally into four cups how much water will be in each cup
Answer: 1/3 must be divided into fourths
Step-by-step explanation:
Question is attached
Answer:
It should be C
Step-by-step explanation:
I hope this helps!
Help me somebody pleaseee
Answer:
Hope i helped but i am not sure chief if that is what you needed
Step-by-step explanation:
you said in the comment we need to find the gallons so if we have the cost 10$ per 2 gallons then 20$ per 4 gallons. Then technicly 1 gallon will be 0 $
But if we need to find the value of the red dots it's starting from the top
40$ for the value of 8
30$ for the value for 6
20 $ for the value of 4
10$ for the value of 2
You can conclude that the cost bar increases by 2 each time
Jordan wants to estimate the number of students in his school who have their own cell phone. He surveys every eighth person who enters the cafeteria for lunch. Is this sample biased or unbiased. Explain.
Answer:
Step-by-step explanation:
I wouldn't consider it biased, but I'll bet a stats person would. Their reason would be that those who enter the cafeteria are select segment of a school population.
What about the kids who go to clubs at noon? or other activities.What about those who are only there part time and have jobs or just go home at noon?What about those who bring lunches and want to sit outside or even in their cars if they have one?What about those who are serving detentions?Those are just four exceptions. There must be others -- like a staggered lunch period.
plzzzzzzzzz help me on this
Answer:
B . . . . . .. . ....... .......
Answer:
is here a choice D? If there is, it must not be true
A, B, and C are true
A) 50<100
B) 60>30
C) 14>9