Step-by-step explanation:
first you have to do the subtraction in the parentheses so it's 8+3(4) and then you multiply the 3 by 4 (only the 3 because the 8 isn't next to the multiply) and then you have 12, add 8 and it's 20
Which graph represents a bike traveling at a constant rate of 12 miles per hour?
Will mark BRAINLIEST!!!! Also please explain how you got the answer, because I don't know how. :(
I WILL MARK BRAINLIEST PLEASE HELP FIND ANGLE DEB
ITS DUE AT 12 PLEASE HELP PLEASE
Answer:
[tex]\boxed {\boxed {\sf \angle DEB = 111 \textdegree}}[/tex]
Step-by-step explanation:
We want to find angle DEB. We know AB is perpendicular to AC, CD is congruent to CE and angle B is 48 degrees.
ABC is a triangle. The angles in a triangle must add up to 180 degrees. Therefore:
∠A+∠B+∠C= 180°We know two angles: ∠B= 48° and ∠A= 90° (the little square denotes a right angle).
90°+48°+ ∠C= 180° Substitute values in.138°+ ∠C =180° Add 138°-138° ∠C= 180°-138° Subtract 138 from both sides. ∠C= 42°Note that angle C is part of another triangle. It is isosceles because the two legs (CD and CE) are congruent. Therefore, the two base angles (E and D) are congruent.
∠C+∠D+∠E= 180°∠C+ 2∠D= 180° Angles D and E are congruent42°+ 2∠D= 180° Substitute 42 in for angle C42°-42° +2∠D= 180°-42° Subtract 42 from both sides.2∠D= 138°2∠D/2= 138°/2 Divide both sides by 2.∠D= 69°∠D and ∠E equal 69 degrees.
Angle CED (∠E) and DEB are on a straight line together. Therefore, they are supplementary and equal 180 degrees.
∠CED+ ∠DEB= 18069° +∠DEB= 180° Substitute 69 for angle CED69°-69° +∠DEB= 180°-69° Subtract 69 from both sides∠DEB=111°Angle DEB is equal to 111 degrees
Casey ran out of time while taking a multiple-choice test and plans to guess on the last 101010 questions. Each question has 555 possible choices, one of which is correct. Let X=X=X, equals the number of answers Casey correctly guesses in the last 101010 questions.
Which of the following would find P(X=2)P(X=2)P, left parenthesis, X, equals, 2, right parenthesis?
Answer:
P(X=2)=
(10/2) (1/5)^2 (4/8)^8
Step-by-step explanation:
This has the correct binomial coefficient for 2 successes in 10 trials, the correct probabilities for success and failure, and the correct exponents for the number of successes and failures.
Which term is an example of a coefficient? *
x + y
4x
8
35 + x
Answer:
4x
Step-by-step explanation:
it will always be the Number beside the variables
4x I guess I don't really know
Nancy and Billy collect coins. nancy has x coins. Billy has 9 coins fewer than 2 times the number of coins Nancy has. Write and simplify an expression for the total number of coins Nancy and Billy have
Which is the best estimate of -14 1/9(-2 9/10)?
O-42
O -28
O 28
O42
Answer:
The best estimate for the given calculation is 2.8.
Step-by-step explanation:
To determine the correct option regarding the result of this calculation, the mathematical resolution of the same must be developed:
-14 x 1 /9 x (-2 x 9/10) = X
-14 x 1 / 9 x (-18 / 10) = X
-14 x 1 / 9 x -1.8 = X
-14 / 9 x -1.8 = X
-1.555555 x -1.8 = X
2.8 = X
Therefore, the best estimate result for this mathematical operation is 2.8.
PLS ANSWER!!
14.975 ➗ 9.5
Answer:
14.975÷9.5=1.57631578947
Free?????????????????????????????????????????????????????????????????????????????????????????
Answer:
THX OK
Step-by-step explanation: OK
Answer:
tysm
Step-by-step explanation:
Plz I rlly need help!!!!
Answer:
C. 20 C
I used an online converter or it is possible to Substitute F for 68 and then solve the equation
how long is a side of the pool
Answer:
In the United States, most competitive swimming pools are 25 yards long. This is the most standard length competition pool, and the one most commonly mistaken for an Olympic sized pool (by those who were not competitive swimmers).Most US high schools, public recreation centers, universities and YMCA's have 25-yard pools. Swimmers refer to this type of pool as "short course", or "short course yards". On paper, the acronym is SCY.
Step-by-step explanation:
PLWS MARK ME BRAINLIEST
Solve for x
please help!
Answer:
Step-by-step explanation:
As these are alternate angles hence we got that ,
both angles will be equal ,
7x+5 = 47
x= (47-5)/7
x=6 degree
Answer:
x = 6°
Step-by-step explanation:
7x + 5° = 47°, because of alternate exterior angles (We can use this because the lines are parallel). Since we know this, we can solve for x.
Solving this equation:
7x + 5 = 47 and if you subtract by 5 on both sides you would get that 7x = 42. From here, you divide 42 by 7 to get your answer. 42/7 = 6 so x = 6 degrees.
Note: I assumed that the angle 7x + 5 was 7x + 5°
What’s the distance between 79 and -37
Answer:
116
Step-by-step explanation:
Point O is the center of the given circle. What is the measure of yz?
54°
A. 27°
B. 108
C. 54
O D. 72°
SUBMIT
Answer:
B. 108°Step-by-step explanation:
XO = YO equal as radius, therefore
m∠X = m∠Y = 54°∠YOZ is exterior angle of the triangle OXY and equal to sum of non-adjacent interior angles
m∠YOZ = 54° + 54° = 108°Arc YZ is 108°
Correct option is B
3/4 of the pupils in the class passed an examination. if 60 pupils passed ,how many pupils were the class
Multiply each pair of numbers -4.25x(-1.25)=
A $250 suede jacket is on sale for 1/5 off. Which choice shows how to find the sale price of the jacket?
Answer:
$200
Step-by-step explanation:
1/5 = 20 % 1.00/5=.20=20%
20 % 0r 250 = 50
250- 50=200
Solve the equation and check your solution. (If all real numbers are solutions, enter REALS. If there is no solution, enter NO SOLUTION.)
5y + 1 = 8y − 5 + 2y
Answer:
y=6/5 or 1 1/5
Step-by-step explanation:
combine like terms
5y+1= 10y-5
subtract 5y from both sides
1=5y-5
add 5 to both sides
6=5y
divide by 5 on both sides
6/5=y
who was located on the Yucatan Peninsula? A.Olmec B.Mayan C.Aztec D.Inca
80 points! Look at the pic attached. I will mark brainliest to the correct answer. Random answers will be reported :) thanks
Answer: No, it is not commutative. If used a square as an example, centered at (1,1). If a dilation is performed on the square of a scale factor of 3, and the square is translated 5 units downward, then the result would be different than if I switched the order, doing the translation downward first and then performing the dilation centered at (1,1).
I hope this helps! If you need any further clarification, just let me know below. Thanks! Have a good day, and good luck on your assignment. :)
Answer:
this helps me :-))
thanks
Helppp please I need help with this ASAP
Answer:
-7 < -5
Step-by-step explanation:
-5 is greater than -7
Show Your Knowledge
Molly has 18 coins, all dimes and nickels. The total value of the coins
is $1.05. How many of each type of coin does Molly have?
9514 1404 393
Answer:
15 nickels3 dimesStep-by-step explanation:
Let d represent the number of dimes Molly has. Then she has 18-d nickels, and the total value (in cents) of her coins is ...
5(18 -d) +10d = 105
5d +90 = 105 . . . . . . simplify
5d = 15 . . . . . . . . . . . subtract 90
d = 3 . . . . . . . . divide by 5; number of dimes
18-d = 15 . . . . . number of nickels
Molly has 3 dimes and 15 nickels.
Molly has 18 coins, all dimes and nickels. The total value of the coins
is $1.05. How many of each type of coin does Molly have?
[tex]\huge\star{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}\star[/tex]
15 nickels
3 dimes
Let d represent the number of dimes
Molly has. Then she has 18-d nickels, and
the total value (in cents) of her coins is ..
5(18-d) +10d = 105
5d +90 105.... simplify
5d 15...
. . subtract 90
d 3.. ... divide by 5; number of
dimes
18-d 15... . . number of nickels
Molly has 3 dimes and 15 nickels.
What is the awnser plz I will mark if right diameter and range
Answer:
Its actually radius but the radius is 17 and the diameter is 34
Step-by-step explanation:
radius is half the diameter so double the radius to get the diameter
The thickness (in millimeters) of the coating applied to hard drives is one characteristic that determines the usefulness of the product. When no unusual circumstances are present, the thickness (x) has a normal distribution with a mean of 2 mm and a standard deviation of 0.04 mm. Suppose that the process will be monitored by selecting a random sample of 25 drives from each shift's production and determining x, the mean coating thickness for the sample.
Required:
Describe the sampling distribution of X (for a sample of size 16).
Answer:
The sampling distribution of X, for a sample of size 16, will be approximately normal with mean 2 mm and standard deviation 0.01 mm.
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For the population:
Mean 2 mm, standard deviation 0.04 mm
Describe the sampling distribution of X (for a sample of size 16).
Sample of size 16 means that [tex]n = 16[/tex]
By the Central Limit Theorem, approximately normal with mean 2 and standard deviation [tex]s = \frac{0.04}{\sqrt{16}} = 0.01[/tex]
Find the common ratio for the geometric sequence with the given information.
ai = 4374; a4 = 162
3
1/3
1/4
3/2
Solve the system of linear equations by multiplying. Check the answer by graphing the system of equations. –2x + 2y = 10 -4x + 5y = 27
Answer:
x=2, y=7 (2,7)
Explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
. ayo be g
Write an equation that represents the word problem.
A wooden railing is 82 m long. It is to be divided into four pieces. Three pieces
will be the same length, and the fourth piece will be 2 m longer than each of the
other three. Find the length of each piece.
Answer:
hope that helps that you're correct answer
Step-by-step explanation:
let each piece be x, and the fourth piece x+2:
3x + x +2 = 82
4x = 80
x = 20
3 pieces will be 20m each and the 4th will be 20+2 = 22m long
Anna earned 22 points on her last test. If there were 40 possible points, what was her percent grade?
Answer:
55%
Step-by-step explanation:
Since Anna earned 22 points, and there was a total of 40 points, this means that she scored 22 out of 40 points. You can simplify this by dividing the denominator and numerator by 2. Then, you can multiply both the numerator and denominator by 5 to get a number out of 100.
[tex]\frac{22}{40} = \frac{11}{20}=\frac{55}{100}*100%=55%[/tex]
Plz hurry
what is the value of (4x^2-10)/y when x=5 and y=6?
A. –15
B. 10
C. 15
D. 20
Answer: C
Step-by-step explanation: Reduce the expression, if possible, by cancelling the common factors.
15
What is the sum of 1.4 +2.37?
03.31
0 3.41
O 3.71
O 3.77
1.4+2.37=3.77
Step-by-step explanation:
1.4+2.37=3.77
40 = 2 x 2 x 2 x 5
Write the number 60 as a product of its prime factors in the same way.
Write the factors in order, from smallest to largest.
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Answer:
Step-by-step explanation:
60 = 2×2×3×5
