Use the formula P = 2a+ b.
Let a = 12
Let b = 8
P = 2(12) + 8
P = 24 + 8
P = 32
What is the expected value of the random variable with the given probability distribution? If necessary, round your answer to the nearest hundreth.
A) 0.62
B) 1.62
C) 3.70
D) 4.33
HeLPPPPp!!! The area of a square is numerically equal to three times its perimeter. Find the length of a side of the square.
Remember to only enter a number.
Answer:
12 Units
Step-by-step explanation:
Area of square = A^2
3 times its perimeter = 3(4A)
A^2= 12A
A=12
What is the slope of y=-5+4xy=−5+4xy, equals, minus, 5, plus, 4, x?
Answer:
-5/4
Step-by-step explanation:
The slope of a line y=4x-5 is 4.
The equation of a line is y=-5+4x.
What is slope of a line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The formula to find the slope of a line is slope = (y2-y1)/(x2-x1)
The standard form of equation of line is y=mx+c
m is a slope of a line and c is y-intercept
Compare the equation y=4x-5 with y=mx+c, we get m=4
Therefore, the slope of a line y=4x-5 is 4.
To learn more about the slope of a line visit:
https://brainly.com/question/14511992.
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April purchased 20 3/8 lb of potatoes for a picnic. The potatoes cost $2.95/lb. What was the total cost of the potatoes?
help
Answer:
$55.25
Step-by-step explanation:
20 3/8=163 163 divided by $2.95= $55.25
The sport of wrestling is becoming more popular among girls. The ratio of girls to boys in wrestling is 1 to 5. If there are 200 boys in a wrestling league, how many girls are there? *
Answer:
40
Step-by-step explanation:
200 divided by 5 is 40, and 40 times 1 is 40.
Answer:
40 girls
Step-by-step explanation:
PLEASE HELP!! WILL GIVE BRAINLIEST!!
An archer shoots an arrow into the sky where the motion of the arrow can be modeled by the equation:
f(t) = -16t² + 80t
where t is time in seconds and f(t) is height in feet.
Find how long it will take the arrow to hit the ground using an algebraic method
Show all of your reasoning/steps used with this algebraic method.
Answer:
this is unsolvable because you dont know what the height in feet is
Reggie plans to have a garden with 36 plants. He wants the ratio of tomato plants to cucumber plants to be 4:5. How many cucumber plants will be in Reggie's garden?
Answer:
20
Step-by-step explanation:
Total no of plants in a garden = 36
The ratio of tomato plants to cucumber plants to be 4:5.
Let tomato plants are 4x and cucumber plants is 5x.
ATQ,
4x+5x=36
9x = 36
x = 4
For cucumber plant, 5x = 5(4) = 20
So, there are 20 cucumber plants will be in Reggie's garden
Question 121 pts
Daniel had $30 to spend at the fair. If the admission to the fair is $8 and the rides cost $1.25 each, what is the greatest number of rides Daniel can go on?
Answer:
17 rides
Step-by-step explanation:
30-8=22
22 divided by 1.25=17.6 and then you cant go on without 1.25 so 17
Please choose all that apply!
The proof that UX ≅ SV is shown.
Given: △STU an equilateral triangle
∠TXU ≅ ∠TVS
Prove: UX ≅ SV
Triangle T X V is shown. Point S is on side T X and point U is on side T V. A line is drawn from points S to U to form equilateral triangle T S U. Lines are drawn from point S to point V and from point U to point X and intersect at point W.
What is the missing statement in the proof?
Statement
Reason
1. ∠TXU ≅ ∠TVS 1. given
2. ∠STV ≅ ∠UTX 2. reflex. prop.
3. △STU is an equilateral triangle 3. given
4. ST ≅ UT 4. sides of an equilat. △ are ≅
5. ? 5. AAS
6. UX ≅ SV 6. CPCTC
△SXU ≅ △TVS
△UVX ≅ △SXV
△SWX ≅ △UWV
△TUX ≅ △TSV
Mark this and return
Answer:
D
Step-by-step explanation:
Edge
Answer:
D
Step-by-step explanation:
Ben is going to make 1/4 pound burgers for a barbecue next weekend. He is planning on making 19 burgers. How much hamburger meat will he need to make 19 quarter pound burgers?
Answer:
4.75 pounds of hamburger meat
Step-by-step explanation:
In order to calculate the total amount of hamburger meat that Ben would need we would need to multiply the total number of burgers that he wants to make (19) by the amount of meat each burger will use (1/4 pound or 0.25 pound). Therefore, we would do the following...
19 * 0.25 = 4.75 pounds
Finally, we can see that Ben would need a total of 4.75 pounds of hamburger meat to make 19 equal sized 1/4 pound burgers.
complete factorization for -20x - 5y
Answer:
-5 (4x+y)
Step-by-step explanation:
Factor out -5, and -20/-5=4, -5/-5=1.
Complete the proof for the following Algebraic Equation:
3x + 6 = 2(x-1)
Select the answer for x below and show the proof on your page for uploading.
O x - 4
Ox= 1
O x=8
O x--7
x= -8
Step-by-step explanation:
3x + 6 = 2(x-1)
3x + 6 = 2x - 2
3x - 2x = -2 -6
x = -8
answer asap!!!!!!!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
This is a reflection over x-axis.
1/4(z 3z) 7=−z 1 please help with this ive been stuck
Answer:
z=0
Step-by-step explanation:
if the equation was 1/4(3z)7=-1z
P(x) = 3x³+ 2x²-x what is the value of P(2)
Answer:
polynomial is -1
so answer is-1
If the scale on a map is = inches/feet 2/10 , how would the following lengths be represented?
a. 15 feet b. 30 feet c. 55 feet
Answer:
Read below
Step-by-step explanation:
a)3 inches
b)6 inches
c)11 inches
Just cross multiply stuff and boom, those are your answers.
A deer travels at the rate of 42 miles in 6 hours. How many miles does it travel in one hour?
Answer:
7
Step-by-step explanation:
42/6 = 7
Match each graph with the function it represents
Answer:
where is the graphs? We cannot help without the graphd
compare linear and nonlinear functions
Plz help me agh! It’s linear stuff
Answer:
(1/2)x - y = -2
General Formulas and Concepts:
Pre-Alg
Equality PropertiesAlg I
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStandard Form: Ax + By = C
Step-by-step explanation:
Step 1: Define equation
Slope-Intercept Form: 2 + (1/2)x = y
Step 2: Find Standard Form
Rewrite: y = (1/2)x + 2Subtract 1/2x on both sides: y - 1/2x = 2Factor negative: -(1/2x - y) = 2Divide both sides by -1: 1/2x - y = -2The price of a computer was decreased by 20% to £420.
What was the price before the decrease?
Answer:
£525
Step-by-step explanation:
420 ÷ 0.8 = 525
help please anyone?
giving brainliestt
Answer:
School Y = 4 points
School X = 12 points
Step-by-step explanation:
school x=school y+8
school x=3 school y
x=y+8
x=3y
3y=y+8
2y=8
y=4
x=12
Yo can someone help me out
Answer:
The answer is 1/20
Step-by-step explanation:
Answer: 1/20 in fraction form. 0.05 in decimal form.
Step-by-step explanation:
1/5 ÷ 4 = 1/20 in fraction form. 1/5 ÷ 4 = 0.05 in decimal form.
7. In order to join a dance team, the team requires a one-time $30 startup fee to cover uniforms as well as a monthly fee of $4. What is the slope of this scenario?
Answer: the slope is 34
Step-by-step explanation:
Vanessa and Zack are playing a game where the player with the lower score wins. At the end of the game, Vanessa has a score of Negative 3 and StartFraction 5 over 8 EndFraction and Zack has a score of Negative 3 and two-thirds. Which statement explains who won?
Answer:
Zack wins.
Step-by-step explanation:
Vanessa's score = [tex]-3\frac{5}{8}[/tex]=-3.625
Zack's score = [tex]-3\frac{2}{3}[/tex]=-3.667
Answer: the answer is D: Comparing the decimal equivalents of their scores shows that Zack won because Negative 3.Modifying Above 6 with bar is less than –3.625.
Step-by-step explanation: i got it right on the test Hope it helps! :)
iven: PA = PC and BA = BC. Use the diagram to find the length described.
Suppose PA = 15 cm and PB = 9 cm. What is the length of AC?
pabc
AC is
cm in length.
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[tex]BA = BC = 12[/tex]
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[tex]AC = BA + BC[/tex]
[tex]AC = 12 + 12[/tex]
[tex]AC = 24[/tex]
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(sinA + cosA)/ (secA + cosecA) = sinA* cosA
Answer:
Proof below
Step-by-step explanation:
Trigonometric Identities
We'll prove that:
[tex]\displaystyle \frac{\sin A+\cos A}{\sec A+\csc A}=\sin A*\cos A[/tex]
Recall:
[tex]\displaystyle \sec A =\frac{1}{\cos A}[/tex]
[tex]\displaystyle \csc A =\frac{1}{\sin A}[/tex]
Applying those definitions:
[tex]\displaystyle \frac{\sin A+\cos A}{\sec A+\csc A}=\frac{\sin A+\cos A}{\frac{1}{\cos A}+\frac{1}{\sin A}}[/tex]
Adding the fractions:
[tex]\displaystyle \frac{\sin A+\cos A}{\sec A+\csc A}=\frac{\sin A+\cos A}{\frac{\sin A+\cos A}{\cos A*\sin A}}[/tex]
Dividing the fractions:
[tex]\displaystyle \frac{\sin A+\cos A}{\sec A+\csc A}=(\sin A+\cos A)*\frac{\cos A*\sin A}{\sin A+\cos A}[/tex]
Simplifying:
[tex]\displaystyle \frac{\sin A+\cos A}{\sec A+\csc A}=\cos A*\sin A[/tex]
Hence proved
At Dustin's Hats, 10 out of the 25 hats at the store are baseball caps. What percentage of hats at the store are baseball caps?
Answer:
BaseBall hats: 40%
Other Hats: 60%
Step-by-step explanation:
10/25= baseball hats or: 10*4: 25*4: 40/100: 40%
15/25= other hats: 15*4/25*4=60/100/ 60%
helppppppppppppppp plzzzzzzzzzzzzzz
Answer: 15w
Step-by-step explanation: