Answer:
3
Step-by-step explanation:
By using the formula y2-y1/x2-x1
URGENT PLEASE HELP The perimeter of AJKL is 106. Find the length of
midsegment ST.
J
5x +7
S
3x +3
4x-1
(not drawn to scale)
K
A
17
B
15
16
D
18
Answer:
16
Step-by-step explanation:
3x+3+3x+3+5x+7+4x-1+4x-1=106
19x+11=106
19x=95
x=5
JL=5(5)+7=32
ST=1/2 of JL = 1/2 of 32 = 16
The length of midsegment ST will be 6. The perimeter of the triangle is given.
What is perimeter?It's the sum of length of the sides used to make the given figure.
The perimeter of AJKL is 106;
⇒KS+SJ+JL+LT+TK=106
⇒3x+3+3x+3+5x+7+4x-1+4x-1=106
⇒19x+11=106
⇒19x=95
⇒x=5
The side JL is obtained by,x=5
JL=5x+7
JL=5×(5)+7
JL=32
The side ST is obtained
ST=(1/2)×JL
ST= 1/2 of 32
ST = 16
Hence, the length of midsegment ST will be 16.
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What are the ordered pairs of the
solutions for this system of equations?
f(x) = x2 – 2x + 3; f(x) = -2x + 12
Answer:
Step-by-step explanation:
If the volume of a sphere is 660 mm, what is the radius of the sphere, to the nearest tenth of a millimeter?
Answer:
Radius= 5.4
Step-by-step explanation:
Formula for Sphere- V= 4/3(pi)• r^3
r=(3 V/4 pi) = (3•660/4•pi)= 5.40114 (5.4)
A passenger train leaves a railway station at 12:00 pm and travels 3 hours on the Northbound track. A second passenger train leaves the same railway station at 12:45 pm and travels 2 hour and 15 minutes on the Southbound tracks at a speed of 20 kilometers per hour faster than the first train. At 3:00 pm the two trains were 360 kilometers apart. How fast was each train traveling?
Answer:
63 kilometers per hour for train A and 83 kilometers for train B
Step-by-step explanation:
Same beginning
Train A: 3 hours to NorthTrain B: 2 hours and 15 minutes to Southbut train B 20 kilometers per hour faster
15 minutes from 20 kilometers per hours are 5 kilometers
So, train B is 45 kilometers travel more far than train B.
= 360 kilometers - 45 kilometers
= 315 kilometers ÷ 5 hours
= 63 kilometers per hours
Hope it's right><
Aaron is designing a party game in which he needs exactly 24 possible outcomes. Which sets of actions can he use to have a statistically fair
game?
Answer:
Counting from the top:
fist option
fourth option
fifth option.
Step-by-step explanation:
Any set that has a multiplicative outcome, such that the total number of outcomes is 24.
Remember that if we have a combination of two events, one with N outcomes and the other with M outcomes, the total number of outcomes is:
M*N
This is the main thing we need to see.
Let's analyze each option:
1) flip a coin (2 outcomes)
flip a coin again (2 outcomes)
roll a 6 sided dice ( 6 outcomes)
total number of outcomes:
2*2*6 = 24
2) Selecting a number from 1 to 16 (16 outcomes) and rolling a dice of 8 sides (8 outcomes).
The total number of outcomes is:
8*16 = 128
We wanted only 24.
3) Selecting a number from the set {1, 3, 5, 7, 9} (5 outcomes)
flip a coin (2 outcomes)
flip the coin again (2 outcomes)
total number of outcomes:
2*2*5 = 20
We wanted 24, we can discard this.
4) Spin the thing (3 outcomes)
roll an 8-sided dice (8 outcomes)
Total number of outcomes:
8*3 = 24
This is a correct option.
5) Select a card from A to D (4 outcomes)
Roll the thing (6 outcomes)
total number of outcomes:
6*4 = 24
This is a correct option.
6) Select a card from A to N {14 options}
Roll the thing once (10 outcomes)
Total number of outcomes:
14*10 = 140
We wanted 24, so we can discard this option.
Then the correct options are:
first one, fourth one, and fifth one.
50 m
50 m
h
28 m
Find the area of the isoceles triangle.
The area is
square meters.
Answer:
700 m^2
Step-by-step explanation:
If the height is 28, and the base is 50, do the triangle area formula for the area.
1/2 28 * 50 = 14 * 50 = 700
Answer:
I believe it should be 700
Step-by-step explanation:
Formula: B times H times 1/2
Helpppp!!!! ASAP!! Please???!
Answer:
c 111 mark me
Step-by-step explanation:
and ur welcome lol
Answer:
105
Step-by-step explanation:
if it true i add 65 +40 =105 so yeah
Two methods are proposed to measure the effectiveness of a brand of sunscreen.
Method A: Survey adults visiting a beach on a busy weekend. Ask each adult which brand of sunscreen they are using, and assess their arms for sun exposure.
Method B: Volunteers are randomly assigned to one of two brands of sunscreen. Each volunteer is asked to report back at the end of the day, and their arms are assessed for sun exposure.
Which statement is a correct interpretation of these methods?
Both methods are experiments because sun exposure is assessed in both methods.
Both methods are observational studies because neither method attempts to influence responses.
Method A is an experiment because it compares many brands of sunscreen, while method B is an observational study.
Method B is an experiment because it randomly assigns volunteers a sunscreen, while method A is an observational study.
Answer: Method B is an experiment because it randomly assigns volunteers a sunscreen, while method A is an observational study.
Step-by-step explanation:
Based on the information given, we can infer that method A is an observational study. An observational study simply refers to the study whereby the researchers just observe the impact of a rise factor without them trying to change the people or things exposed to it. This can be seen as the survey adults visited the beach on the busy weekend asking each adult the brand of sunscreen that they use and then assess their arms for sun exposure.
Method B is an experiment. An experiment refers to a test that's carried out in order to evaluate a particular hypothesis or theory. Method B is an experiment because it randomly assigns volunteers a sunscreen.
Therefore, the correct option is D.
please help me , i’m so stuck on this problem
Answer:
x = 1
y = 9
Step-by-step explanation:
The diagonals of the parallelogram bisect each other. Therefore:
✔️2x + 13 = 15
2x + 13 - 13 = 15 - 13
2x = 2
2x/2 = 2/2
x = 1
✔️5y - 36 = y
5y - 36 - 5y = y - 5y
-36 = -4y
-36/-4 = -4y/-4
9 = y
y = 9
The U Gym provides weight resistance through adjustments of incline. The minimum weight resistance is 8% of the weight of the person using the U Gym. Find the minimum weight resistance possible for a 240-pound man.
The minimum weight resistance possible for a 240-pound man is
pounds.
(Type a whole number or a decimal.)
Answer:
The minimum weight resistance possible for a 240-pound man is 19.2 pounds.
Step-by-step explanation:
Since the U Gym provides weight resistance through adjustments of incline, and the minimum weight resistance is 8% of the weight of the person using the U Gym, to find the minimum weight resistance possible for a 240-pound man the following calculation:
240 x 8/100 = X
1,920 / 100 = X
19.2 = X
Thus, the minimum weight resistance possible for a 240-pound man is 19.2 pounds.
If AB is 150 then P equals?
Answer:
Wouldn't P be something less or equal to an acute angle? Try 75°.
Answer:
its 300∘ I got it right
One pizza is $12 and a cake is $18. If Matt has $84, how many pizzas can he buy at most and still afford to buy a cake
Answer:
5 pizzas
Step-by-step explanation:
So first you subtract 18 so that you know that there is at least one cake.
84 - 18 = 66
When you get 66 dollars remaining, you divide it by 12 to see how many you can afford.
66/12 = 5.5
So because you can’t say you have an additonal amount of money, you would actually round down to 5.
So Matt can buy a total of 5 pizzas and 1 cake.
Answer:
5
Step-by-step explanation:
To find the number of pizzas Matt can buy while still being able to afford a cake set up an inequality. The inequality should look like [tex]84\geq 12x+18[/tex] where x is the number of pizzas Matt bought. Then, solve the inequality by first subtracting 18 from both sides, [tex]66\geq 12x[/tex]. Next, divide both sides by 12, [tex]5.5\geq x[/tex]. This means that Matt can buy 5 pizzas. At first, it might seem like you should round up; however, if you rounded up at all then Matt could not afford the cake, so you must round down.
Find the inflation rate from 1992 to 1993 . Assume that all prices have risen at the same rate as the CPI.
The inflation rate was about
nothing%.
69,420
69,420
69,420
69,420
69,420
69,420
69,420
69,420
69,420
69,420
69,420
69,420|
69,420
(1 point)
10. A piece of art is in the shape of an equilateral triangle with sides of 21 in. What is the area of
the piece of art to the nearest tenth?
311.8 in.2
381.9 in?
155.9 in.2
191.0 in.2
Answer:
191.0
Step-by-step explanation:
Suppose that P dollars in principal is invested in an account earning 2.1% interest compounded continuously. At the end of 2 yr, the amount in the account has earned $193.03 in interest.
A) Find the original principal.
B) Using the the original principal from part (a) and the model A = Pe", determine the time required for the investment to reach $6000.
Answer:
See explanation
Step-by-step explanation:
Recall that
Amount = Principal + Interest
The formula is;
A = P(1 + r)^n
Where;
P= principal, n = time and r = rate
Hence;
P + I = P(1 + r)^n
P + 193.03 = P(1.021)^2
P + 193.03 = 1.04P
P - 1.04P = - 193.03
-0.04 P = - 193.03
P = 193.03/0.04
P = $ 4825.75
B) When A = $6000, n=?
From;
A= P(1 + r)^n
6000 = 4825.75 (1.021)^n
6000/4825.75 = (1.021)^n
1.24 = (1.021)^n
Taking logarithm of both sides;
log 1.24 = n log 1.021
n = log 1.24/log 1.021
n = 0.0934/0.009
n = 10 years
Given f(x)=x^2−5x and g(x)=2x+1, find (f+g)(−3).
Answer:
19
Use the given functions to set up and simplify
plssss help can i have a discord and call me plssss
Answer:
1/24
Step-by-step explanation:
SHAWTYYY THIRSTY
Answer:
21/24-20/24=1/24
Step-by-step explanation:
Make the denominators same by multiplying the fraction with a number that will make the denominators equal i.e 3 for first fraction and 4 for the second fraction.
Helllpppp i’ll give brainliest
Answer:
The two triangles are related by A - S - A test of similarity , so the triangles are congruent.
Which sentence represents the perimeter
of a square?
A. length x width =P
B. (length x width) x 2 =P
C. length + length + width + width =P
D. (length + length) x (width + width) = P
Answer:
c
Step-by-step explanation:
This Is A Grade! Please Help Answer Any Of These. (PLEASE)
Answer:
1. 85 in squared
Work: b=17 h=10
17*1/2=8.5
8.5*10=85
2. 142.5 mm squared
Work:b=15 h=19
15*1/2=7.5
7.5*19=142.5
3. 110.5 mm squared
Work:b=17 h=13
17*1/2=8.5
8.5*13=110.5
4. 9km squared
Work:b=2 h=9
2*1/2=1
1*9=9
5. 924 mm squared
Work:b=77 h=24
77*1/2=33.5
33.5*24=924
6. 104.5 m squared
Work: b=19 h=11
19*1/2=9.5
9.5*11=104.5
Step-by-step explanation:
Answer:
1. 10x17=170
170/2=85in
2. 19x15=285
285/2=142.5mm
3. 13x17=221
221/2=110.5mm
4. 9x2=18
18/2= 9km
5. 24x77=1,848
1,848/2=924mm
6. 11x19=209
209/2=104.5m
levi was designing a kite. he needs to determine the measure of
The measure of angle A is 86.
What is a kite?A kite is a flying object that is tethered to the ground by a string or a cord. It typically has a light framework of bamboo, plastic, or other materials, covered with paper or fabric, and often in the shape of a diamond or triangle.
We have,
From the figure,
We see that,
6x + 4 + ∠A = 180
Now,
∠A = 4x + 26
So,
6x + 4 + 4x + 26 = 180
10x + 30 = 180
10x = 180 - 30
10x = 150
x = 15
Now,
∠A = 4x + 26 = 4 x 15 + 26 = 60 + 26 = 86
Thus,
The measure of angle A is 86.
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The complete question:
Levi was designing a kite. he needs to determine the measure of angle A.
The median of these numbers is
how much less than the mean?
1.5, 0.6, 0.7, 0.85, 5.3
Answer:
The median of the numbers is 3.66 less than the mean
Step-by-step explanation:
To find the median, find the middle of the numbers
0.6, 0.7, 0.85, 1.5, 5.4
To find the mean, add all the numbers and divide by the number of numbers
0.6 + 0.7 + 0.85 + 15 + 5.4 = 22.55
22.55/5 = 4.51
To find how less, subtract the median from the mean
4.51 - 0.85 = 3.66
Let O be a quadrant I angle with cos(0) ✓11/7 Find sin(20).
Answer:
[tex]\displaystyle \sin(2\theta)=\frac{2\sqrt{418}}{49}\approx0.8345[/tex]
Step-by-step explanation:
We are given that:
[tex]\displaystyle \cos(\theta)=\frac{\sqrt{11}}{7}[/tex]
Where θ is in QI.
And we want to determine sin(2θ).
First, note that since θ is in QI, all trig ratios will be positive.
Next, recall that cosine is the ratio of the adjacent side to the hypotenuse. Therefore, the adjacent side a = √(11) and the hypotenuse c = 7.
Then by the Pythagorean Theorem, the opposite side to θ is:
[tex]b=\sqrt{(7)^2-(\sqrt{11})^2}=\sqrt{49-11}=\sqrt{38}[/tex]
So, with respect to θ, the adjacent side is √(11), the opposite side is √(38), and the hypotenuse is 7.
We can rewrite as expression as:
[tex]\sin(2\theta)=2\sin(\theta)\cos(\theta)[/tex]
Using the above information, substitute. Remember that all ratios will be positive:
[tex]\displaystyle =2\Big(\frac{\sqrt{38}}{7}\Big)\Big(\frac{\sqrt{11}}{7}\Big)[/tex]
Simplify. Therefore:
[tex]\displaystyle \sin(2\theta)=\frac{2\sqrt{418}}{49}\approx0.8345[/tex]
Find the distance between points P(2, 6) and Q(8, 4) to the nearest tenth.
Answer:
6.3
Step-by-step explanation:
√((8-2)^2 + (4-6)^2)
√ (36 + 4)
√40
6.3
Emily surveyed 364 people with 3 out of 7 answered yes
To determine the organic material in a dried lake ted, the percent carbon by mass is measured at two different locations. In order to compare the means of the two different locations, it must first be determined whether the standard deviations of the two locations are different.
Location1(%C) Location2(%C)
1 10.40 10.10
2 10.20 10.90
3 10.30 10.20
4 10.40 10.70
5 10.20 10.40
a-1. Far each location, calculate the standard deviation and report it.
- location 1: _____
- location 2: _____
a-2. What is the calculated F value for comparing the standard deviation?
b. Are the two standard deviations for the locations significantly different at the 95% confidence level?
A. yes.
B. No.
c. What is the calculated t value used to compare the means of these two locations?
d. Are the means for the two different locations significantly different at the 95% confidence level?
A. yes.
B. No.
Answer:
a-1.- location 1: =0.01- location 2: =0.113
a-2. F= 0.08849
b. A. yes.
c. t= -1.020
d. B. No.
Step-by-step explanation:
Location1(%C) Location2(%C)
x x² y y²
1 10.40 108.16 10.10 102.01
2 10.20 104.04 10.90 118.81
3 10.30 106.09 10.20 104.04
4 10.40 108.16 10.70 114.49
5 10.20 104.04 10.40 108.16
∑ 51.5 530.49 52.3 547.51
x`= ∑x/n1 = 51.5/5= 10.3; y`= ∑y/n2= 52.3/5= 10.46
Sx² = 1/n1-1[ ∑x² - (∑x)²/n1] = 1/4[ 530.49 - (51.5)²/5]
= 1/4[ 530.49 - 530.45] = 0.01
Sy² = 1/n2-1[ ∑y² - (∑y)²/n2] = 1/4[ 547.51 - (52.3)²/5]
= 1/4[ 547.51 - 547.058] = 0.113
F= Sx²/Sy²= 0.01/0.113= 0.08849
The critical region is F ≥ F(0.025) (5,5)= 7.15
and F ≤ 1/F(0.025) (5,5) = 1/7.15= 0.13986
Since the calculated value of F =0.08849 falls in the critical region we conclude that the two standard deviations for the locations significantly different at the 95% confidence level.
c. t= x1`-x2`/ sqrt ( s₁²/n₁ + s₂²/n₂)
t= 10.3-10.46/ sqrt( 0.01/5 +0.113/5)
t=- 0.16/0.15684
t= -1.020
d. The calculated value t= -1.020 does not fall in the the critical region
t (0.025) (4) = ±2.776 we conclude that the means for the two different locations are not significantly different at the 95% confidence level.
Drag each expression to the correct location on the table.
e each algebraic expressions next to its corresponding verbal description.
Answer:
5 times the cube of x divided by 4 times x answer is the first one from the left 5x³-4/x. the quotient of the difference of 5 times x cubed and 4 and x the answers is 5x³-4x/ the third one from the right. the cube of the difference of 5 times x and 4 the answer is the middle one
20% of the 65 coffee mugs at Toby's Pancake House are dirty. How many dirty are there at the pancake house? pls answer asap for brainliest
Answer:
13
Step-by-step explanation:
20% of 65 = 0.2 * 65 = 13
7. Find the measure of x.
Answer:
37
Step-by-step explanation:
Here the 2 angles are the same. So
74 = 2x
74/2 = x
x = 37
Answer ;
2x + 74 = 180 2x = 180 - 74 = 106 x = 160/2( refer the attachment for the division )
hence , x = 53
hope my answer helps you !!
what is the value of the expression below?
5/9 / 1 2/3 x 3 3/5
A: -1 1/5
B: 1 1/5
C:-1/3
D: -3 1/3
No links
Answer:
B) 6/5 or 1 1/5
Step-by-step explanation:
5/9 ÷ 5/3 × 18/5 = 5/9 × 3/5 × 18/5 = 6/5