Answers
Answer:
15
Step-by-step explanation:
Answer:
21
Step-by-step explanation:
It is given that two lines are parallel, and hence the corresponding angles are congruent, by corresponding angles postulate. It is also given that the triangles in the photo share an angle, by the reflexive property, the shared angle is congruent. Hence one can use angle-angle to determine that the two triangles in the picture are similar.
Using this, one can set up a proportion with the sides. The ratios of any two corresponding sides are the same as any other two corresponding sides in the triangle, respectively, this is due to the corresponding parts of similar triangles theorem.
[tex]\frac{9+12}{12}=\frac{49}{49-?}[/tex]
Simplify,
[tex]\frac{21}{12}=\frac{49}{49-?}\\\\\frac{7}{4}=\frac{49}{49-x}[/tex]
Cross products,
[tex](7)(49-?) = (4)(49)\\\\343-7?=196[/tex]
Inverse operations,
[tex]343-7?=196\\-343\\\\-7? = -147\\/-7\\\\?=21[/tex]
Related Questions
Manny begins the summer with $200
Answers
Answer:
1200
Step-by-step explanation:
Pls help me with this math..... its kind of easy...
Answers
a=9.2
b=1 5/8
c=4
d=24
e=2.3
f=8.5
g= 2.6
B) 1 5/8
C) 4
D) 24
E) 2.3
F) 8/5
G) 2.6
A school is arranging a field trip to the zoo. The school spends 673.86 dollars on passes for 31 students and 2 teachers. The school also spends 267.53 dollars on lunch for just the students. How much money was spent on a pass and lunch for each student?
Answers
Answer:
$21.73 for a pass, and $8.63 for a lunch
Step-by-step explanation:
673.81/31= 21.73
267.53/31=8.63
Hope this helps
Guys help ASAP! Is 2 a solution of 4x+12=4 complete the statement
Answers
Answer:
false ; is not
Step-by-step explanation:
Find the common ratio of 72,12, and 2
Answers
Answer:6
Step-by-step explanation:
Answer:
72:12:2 can be simplified to 36:6:1
Step-by-step explanation:
its like fractions
If a fair die is rolled 7 times, what is the probability, rounded to the nearest thousandth, of getting at most 2 twos?
Answers
Answer:
0.904
Step-by-step explanation:
Using the binomial distribution, it is found that there is a 0.905 = 90.5% probability of getting at most 2 twos.
For each time the die is rolled, there are only two possible outcomes, either the result is a 2, or it is not. The result on a roll is independent of any other roll, which means that the binomial distribution is used to solve this question.
Binomial probability distribution
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
The parameters are:
x is the number of successes. n is the number of trials. p is the probability of a success on a single trial.In this problem:
The die is rolled 7 times, hence [tex]n = 7[/tex].One out of the 6 sides is a 2, hence [tex]p = \frac{1}{6} = 0.1667[/tex]The probability is:
[tex]P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2)[/tex]
Hence:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{7,0}.(0.1667)^{0}.(0.8333)^{7} = 0.279[/tex]
[tex]P(X = 1) = C_{7,1}.(0.1667)^{1}.(0.8333)^{6} = 0.391[/tex]
[tex]P(X = 2) = C_{7,2}.(0.1667)^{2}.(0.8333)^{5} = 0.235[/tex]
Then:
[tex]P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2) = 0.279 + 0.391 + 0.235 = 0.905[/tex]
0.905 = 90.5% probability of getting at most 2 twos.
A similar problem is given at https://brainly.com/question/24863377
What are the roots of the equation?
102
Answers
Suppose there is a 1.6°F drop in temperature for every thousand feet that an airplane climbs into the sky. If the temperature on the ground is 58.3°F, what will be the temperature when the plane reaches an altitude of 2,000 ft?
Answers
Answer: 55.1°F
Step-by-step explanation:
We are informed that there is a 1.6°F drop in temperature for every thousand feet that an airplane climbs into the sky, if the plane reaches an altitude of 2,000ft, the drop in temperature will be:
= 1.6° × 2
= 3.2°F
If the temperature on the ground is 58.3°F, then the temperature when the plane reaches an altitude of 2,000 ft will be:
= 58.3°F - 3.2°F
= 55.1°F
how far would lin run in an hour
Answers
Answer:
Depends on how far or fast she's running per second or per minute
7 x ( h + 4 ) for h = 3
Answers
Answer:
is h is 3, then your answer would be 21 + 28 = 49
since 7 x 3 = 21 and 7 x 4 = 28 you add 21 and 28 which would get you 49
Answer:
h = 3
Step-by-step explanation:
7 x ( h + 4 )=7×(3+4)=7×7=49
Use the FOIL method to check your answer from part A.
Answers
Answer:
[tex]x^{2} -8x+12[/tex] (that means u got it right)
Step-by-step explanation:
basically use the distributive property to multiply everything by each other.
x*x=[tex]x^{2}[/tex]
x*(-2) + x*(-6)= -8x
-6*-2=12
Put it all together and u get the original.
Sorry if this is confusing.
The total cost of making a daily taco special for a restaurant is represented by the function C (t) = 2.5t + 1 , where t is the number of tacos made. How does the total cost change for every taco special the food truck makes?
A. The total cost increases by $1.
B. The total cost increases by $2.50.
C. The total cost decreases by $1.
D. The total cost decreases by $2.50.
Answers
Answer:
C. The total cost increases by $2.50
Step-by-step explanation:
This is because 1 dollar is constent--- you will always have 1 dollar.
However 2.5 is the change, you have to times a number to get the answer.
EX:
(t) = 2.5t + 1
(4) = 2.5( 4) + 1 ----- plug in 4 for t
= 10 +1
= 11
The is the multiplyer or change is the 2.5t
and when you graph it it will almost always be the slope of the line.
I only got this partially correct please tell me the correct answer
Answers
Answer:
its 5 can you answer mine please
hmark 1 - Item 205023
Erin received the following scores on her last four spelling tests.
23, 82%, 0.8,
17
20
Which of these is Erin's highest score?
Answers
Answer:
82% is her highest score
Step-by-step explanation:
82 is greater than 23, 80, 17 and 20
Marco would like to hang a banner over his shoe store. He has two ladders and would like to know how high above the ground each ladder will allow him to place the banner. A 13- foot ladder leans against the building and touches it at a point that is 11.3 feet above the ground.
what height would a 15-foot ladder touch the building if both ladders form the same angle with the ground? Make a sketch and round your answer to the nearest tenth
Answers
Plz help I will give brainliest JUST PLZ HELP
Answers
B= 130 degrees
(not sure of the rest)
Find perimeter
of triangle
Answers
Answer:
it's perimeter is
=x+x+4+3
=2x+7
Step-by-step explanation:
hope it helps you
mark me brainliest
A ceramic vase that cost an antique store $5 was marked $20. What is the percentage markup on the price of the ceramic vase?
15%
75%
300%
400%
Answers
I NEED HELP FAST ITS E.L.A ILL GIVE BRAINLIEST FOR FIRST ANSWER
Read the paragraph.
When the U.S. Postal Service began, men on horseback carried mail in bags across the country. Once the railroad system was developed, mail was delivered to different states by train. Today, mail is transported in trucks, trains, airplanes, and even boats.
What is the meaning of "transported" as it is used in this paragraph?
A. delivered by hand
B. organized by city and state
C. received from different locations
D. carried from place to place
Answers
Answer:
I would go with D
carried from place to place
I think that it is most likely D.
please help me with these two questions
Answers
number 7 is B, number 8 is D.
1) a mass of 300kg is increased by 8%.
workout the increase in mass
2) nelson scores 27 out of 40 in a test
work out his score as a percentage
Answers
Answer:
1. 324kg
2. 67.5%
Step-by-step explanation:
1. % increase = 100 + 8 = 108%
[tex]\frac{108}{100} x 300[/tex]
= 324kg
2. [tex]\frac{27}{40} x 100[/tex]
= 67.5%
At most, Kyle can spend $50 on sandwiches and chips for a picnic.
He already bought chips for $6 and will buy sandwiches that cost $4 each.
How many sandwiches can Kyle buy?
Answers
Answer:
21
Step-by-step explanation:
hihihihihiiiiiiiii
Enter a range of values for x.
a
3x-90 930
26
27
[? ]
Enter
Answers
Answer:
the answer to your question is 3 and 34
What type of symmetry does the figure have?
line symmetry only
rotational symmetry only
both line and rotational symmetry
none of the above
Answers
Answer:
B. rotational symmetry onlyStep-by-step explanation:
Line symmetry is when the line acts like a mirror. We don't have such a symmetry here.
The figure has rotational symmetry only, if you rotate it about its center it will map to itself every 180 degrees.
Correct option is B
Answer:
B. rotational symmetry only
Step-by-step explanation:
Graph y=1.4xy=1.4xy, equals, 1, point, 4, x. plz help its not too late plz
Answers
Replace x with any number and solve for Y.
Do this at least twice to get 2 points.
Place these points on the graph and draw a line through them.
See attached graph.
Let x = 2
y = 1.4(2)
y = 2.8
First point = (2,2.8)
Let x = 5
y = 1.4(5)
y = 7
Second point = (5,7)
The y-intercept is zero, that means the line is passing through origin.
What is the equation of line?The equation of line is given as
y = mx + c
Where m is the slope and c is the y-intercept.
The equation is given below.
y = 1.4x
In the above equation, y-intercept is not there, which means the line is passing through origin.
More about the equation of line link is given below.
https://brainly.com/question/21511618
#SPJ5
if you where asked to solve a system of linear equations using the substitution method, what form would one or both of the equations start as that would make the problem the simplest?
A. point-slope form
B. standard form
C. slope-intercept form
D. point-intercept form
Answers
Answer:
It's A
Step-by-step explanation:
In general, the equation in point-slope form will give an expression that can substitute for "y", as that form is ...
y = [something]
_____
In specific instances, the other forms of the linear equations may work, but that is not guaranteed.
How did ancient camels differ from those of today?
Answers
Answer:
They Don't
Step-by-step explanation:
0.3t = 0.24
Solve for t
Please show steps thanks so much
Answers
Answer:
0.8
Step-by-step explanation:
0.3t = 0.24
divide both sides by 0.3
t = 0.8
simplify h + h + h , I really need help
Answers
Explanation:
Add them
Answer: The answer is 3h
Step-by-step explanation:
(
5) £940 increased by 8%
Answers
Answer:
£1015.2
Step-by-step explanation:
We need to find £940 increased by 8%. It can be calculated as follows :
[tex]940+940\times \dfrac{8}{100}\\\\=940+75.2\\\\=\$1015.2[/tex]
It means if £940 increased by 8%, then the answer is equal to £1015.2.