Answer:
The answer is 2.2
Step-by-step explanation:
you add the 2 trains then you divide the total of the two by the total miles which is 308 miles apart and it will give you 2.2 without rounding check the calculator if you want
the length of a rectangle is twice the width. the perimeter is 90 inches. what is the rectangles area? you write the equation 2w+2w+w+w=90 for the word problem. you solve and get 15. what is the answer to the problem?
A) The area is 450 in^2
B) The width is 15 inches.
C) The area is 112.5 in^2
D) The length is 30 inches.
One width and one length is half the perimeter.
90/2 = 45
Let the width = X
the length is 2 times the width so 2X
The sum of the two equals 45"
2X + X = 45
Simplify:
3x = 45
Divide both sides by 3:
x = 15
The width is 15 inches
Length = 30 inches.
Area = Length x width = 15 x 30 = 450 in^2
The area 450 in^2
1. Which of the following expressions is equal to m3?
m. 3
m + m + m
3
m. m. m
Answer:
m +m+m is equal to M3. hope it helps
Answer:
m.m.m
Step-by-step explanation:
I'm going to assume m3 signifies m³. If this be the case, then;
m.3 = m×3 = 3mwhere as
m+m+m = 3mbut
m.m.m = m×m×m = m³Which equation describes the same line asy- 3 =-1(x+ 5)?
OA. y=-1x- 2
O B. y= -1x-1
O C. y=-1x+8
O D. y=-1x-5
X
X
What is the value of x
Answer:
2x..................
write the equation of a line that has a slope of -1/3 and an x-intercept of 6
Answer:
y = -1/3x + 2
Step-by-step explanation:
y = -1/3x + b
insert the x-intercept to find b
0 = -1/3(6) + b
0 = -2 + b
b = 2
y = -1/3x + 2
Answer:
y=-1/3+6
Step-by-step explanation:
By x-intercept do you mean y-intercept?
Please help me with this anyone I beg
Answer:
A)336
B) In how many ways can you arrange 8 people in 3 different chairs?
C) 21
D) You want to buy 3 cartoon books from a book store that has 7 cartoon books. In how many ways can you select?
Step-by-step explanation:
A) P(n, r) = P(8, 3)
Formula for permutation is;
P(n, r) = n!/(n - r)!
P(8, 3) = 8!/(8 - 3)!
P(8, 3) = (8 × 7 × 6 × 5!)/5!
5! will cancel out to give;
P(8, 3) = (8 × 7 × 6)
P(8, 3) = 336
B) In how many ways can you arrange 8 people in 3 different chairs?
C) C(n, r) = C(7, 2)
Formula for combination is;
C(7, 2) = n!/(n - r)!r!
Thus;
C(7, 2) = 7!/(7 - 2)!2!
C(7, 2) = (7 × 6 × 5!)/(5! × 2 × 1)
5! will cancel out to give;
C(7, 2) = 7 × 6/2
C(7, 2) = 21
D) You want to buy 3 cartoon books from a book store that has 7 cartoon books. In how many ways can you select?
Identify the coefficient(s) and constant(s) in this expression. 9x - 8y + 6
Trolls will be reported have a right answer please
Answer:
the coefficient are 9 and -8
the constant is 6........
Expand the expression.
3(2.1c + 1.3)
Answer:
6.3c + 3.9
Step-by-step explanation:
This expression requires you to distribute the 3 into the other terms.
3(2.1c + 1.3)
3 · 2.1c = 6.3c
3 · 1.3 = 3.9
Therefore, the expression is 6.3c + 3.9.
2 of 2
X= 1
True
False
Answer:
of means to multiple so it would equal 4 so the answer is false
Arrange the numbers as they appear from left to right on a horizontal number line. -5/7, 2 5/7, 5/7, -1 5/7, 1 2/7, -1/7, -2 2/7
Plz be quick will give Brainiest!
Answer:
-2 2/7, -1 5/7, -5/7, -1/7, 5/7, 1 2/7, 2 5/7
Answer:
the answer is on the image below, hope this helps!
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v
Simplify the expression by removing symbols of grouping and combining like terms.
3(r − 4s) − 5(3r − 5s)
Step-by-step explanation:
the answer is -12r+13s
if u need the explanation I gotchuu just lemme know or need work shown
hope it helps<33
If the minute hand of a clock rotates 6 degrees every minute. Determine how minutes does it take to rotate 2160
degrees. (1 point)
Ot=360
Ot= 340
Ot=180
Ot = 2160
Answer:
Yo wassup. To your question it will be 360 degrees.
Step-by-step explanation:
Now bro can you mark as brainlest?
ILL GIVE A BRAINLEST!!!! TO THE FIRST ONE WHO ANSWERS THIS PLZ I NEED HELP ASAP!!!
Answer:look at the picture for the answer
Which of the following equations could be used to show the relationship between number of days and amount of soda consumed? Select all that apply. Prove your answer is correct using points on the graph.
Answer:
b and e
Step-by-step explanation:
Number of days = x
Amount of soda = y
An equation that can represent the relationship between amount of soda and number of days can be represented in the form of y = mx
Where slope (m) = y/x
Using any point on the line, say (1, 40),
m = 40/1
m = 40
Plug the value of m into y = mx
Thus, we have:
y = 40x
This can also be rewritten as:
y/x = 40
Therefore, the equations that can be used to represent the relationship are:
y = 40x or y/x = 40
xyz-qrs and the scale factor from xyz to qrs is 2/5. what is the length of side rs?
Answer:
RS = 10
Step-by-step explanation:
We are told that to get ∆QRS, the scale factor of ⅖ was used. To get side RS, we would multiply the side length of the side that corresponds to RS.
YZ corresponds to RS.
YZ = 25
Thus,
RS = 25*⅖
RS = 10
4.) Anoki wants to determine the height of a vertical lighthouse, shown below. He measures the angle of
elevation to the top of the lighthouse at a point 103 feet along level ground from the center of the base of the
lighthouse. The angle of elevation is 31º. Which of the following expressions gives the best approximation
of the height of the lighthouse, in feet?
D. 103 cos 31°
cos 31°
A.
103
tan 31°
B.
103
C. 103 sin 31°
E. 103 tan 31°
310
103
The tangent or tanθ in a right angle triangle is the ratio of its perpendicular to its base. The height of the lighthouse is 103×tan 31°.
What is Tangent (Tanθ)?The tangent or tanθ in a right angle triangle is the ratio of its perpendicular to its base. it is given as,
[tex]\rm Tangent(\theta) = \dfrac{Perpendicular}{Base}[/tex]
where,
θ is the angle,
Perpendicular is the side of the triangle opposite to the angle θ,
The base is the adjacent smaller side of the angle θ.
Given that the distance between the Anoki and the lighthouse is 103 feet, while the angle between Anoki and the top of the lighthouse is 31°. Therefore, using the tangent function of the trigonometry we can write the height of the lighthouse as,
[tex]\rm Tangent(\theta) = \dfrac{Perpendicular}{Base}[/tex]
[tex]\rm tan(31^o) = \dfrac{\text{Height of the lighthouse}}{103\ feet}\\\\\text{Height of the lighthouse} = 103 \times tan(31^o)\\\\[/tex]
Hence, the height of the lighthouse is 103×tan 31°.
Learn more about Tangent (Tanθ):
https://brainly.com/question/10623976
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A carriage on a carnival ride can hold up to 4 people.How many carries are needed for a group of 22 people to ride
Answer:
6
Step-by-step explanation:
5.5 carriages are needed but you can't have half a carriage so the nswer would be 6
8. Glass Garbage Generation A survey found that the American family generates an average of 17.2 pounds of glass garbage each year. Assume the standard deviation of the distribution is 2.5 pounds. Find the probability that the mean of a sample of 55 families will be between 17 and 18 pounds. 0.7135 Source: Michael D. Shook and Robert L. Shook, The Book of Odds. 9. College Costs The mean undergraduate cost for tuition, fees, room, and board for four-year institutions was $26,489 for a recent academic year. Suppose
Answer:
.7147
Step-by-step explanation:
Let P be the probability of 55 families having mean more than 17
P { (17-17.2)/ (2.5/√55) }
P(- 0.5933 )
= - .2765 [ From the z table ]
P be the probability of 55 families having mean less than 18
P { (18 -17.2)/ (2.5/√55) }
P( 2.3732 )
= .9912 [ From the z table ]
Probability of mean between 17 and 18
= .9912 - .2765
= .7147
Addison rae i need bad bleep
Answer:
please get help
Step-by-step explanation:
Sleep
wake up
repeat
Answer:
Hate to break it to you
Step-by-step explanation:
Addison died two weeks ago
Philip ran 438 miles yesterday. Michael ran 158 miles yesterday.
How much farther did Philip run than Michael?
A. 338 miles
B. 212 miles
C. 314 miles
D. 234 miles
Step-by-step explanation:
Distance ran by Philip=438 miles
Distance ran by Michael=158 miles
Distance Philip run farther than Michael=(Distance ran by Philip-Distance ran by Michael)
438 miles-138miles
=280miles
Hope it helps you
Please help me with this question
Answer:
I think it is 4×10^-2
DO NOT FORGET STAY SAFE AT HOME
Look at ZBDC and ZADB in the image below.
с
D
E
А
Which of the following is the best description for this pair of angles?
acute
right
supplementary
complementary
Answer:
acute angles
Step-by-step explanation:
if they are below 90° they are acute, but if they are above 90° they are obtuse, and if it is just 90° they are right
What is the volume of the following rectangular prism? 3 1/3 units^2
1 2/5 units
The volume of the given rectangular prism is 14/3 units³ or approximately 4 2/3 units³.
Given:
Rectangular base area = 3 1/3 units²
Height = 1 2/5 units
Convert the mixed number to improper fractions.
The rectangular base area can be written as:
= 3 + 1/3
= 3/1 + 1/3
= 10/3 units².
The height can be written as:
= 1 + 2/5
= 1/1 + 2/5
= 7/5 units.
Multiply the area of the base by the height.
Volume = Base area × Height
Volume = (10/3 units²) × (7/5 units)
Multiply the numerators and denominators separately.
Volume = (10 × 7) / (3 × 5) units³
Volume = 70 / 15 units³
Volume = 14/3 units³
Therefore, the volume of the given rectangular prism is 14/3 units³ or approximately 4 2/3 units³.
Learn more about the rectangular prism here:
brainly.com/question/21308574
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inverse of f(x)=2(x-1)^2+3
Answer:
x = 2(y - 1)² + 3
Step-by-step explanation:
just switch 'x' and 'y'
Workout (10-3x2)^2
Please help with both questions
Answer:
b) 16 c)a=-3
Step-by-step explanation:
b) (10-3x2)^2 = (4)^2 = 16
c) (5)^-3 = 1/125
Find x of the triangle within the circle (geometry) :).
?=44
Bananas are curved because they grow towards the sun ☀️
Help please solve for y
you have take the two x problems add them and then you take both ys and you should get a answer after that take the answer ur given and divide it by the answer you get from 2,-5
Does this graph represent a function? Why or why not?
Answer:
B. No, because it is not a straight line.
Have a nice day!!!
Two parallel lines intersected by more than one transversal. Let x=45 find measure of angle 1,2 and 3
Answer: to me i think u ar missing the distance between the parallel lines
Step-by-step explanation:
Nth term of this quadratic sequence 2,8,18,32,50
Answer:
2n²
Step-by-step explanation:
2 , 8 , 18 , 32 , 50
First difference = 6 , 10 , 14 , 18
Second difference = 4 , 4 , 4
First term(n² th term) = 4/2 = 2n²
Check:
n = 1; 2n² = 2*1 = 2
n = 2 ; 2n² = 2* 2² = 2 *4 = 8
n=3 ; 2n² = 2*3² = 2*9 = 18
