Please help me with 1,2,3,4 and show me how you get it the answers please I really need help can someone help me
Answers
Related Questions
if your good at precalculus and don't mind doing word please leave a comment down below.
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Answer:
I'm in high school. Sorry I haven't started pre-calc yet. but, I really hope that you can find someone who can help. I'm just answering this for the points.
Step-by-step explanation:
Have a great rest of your day/night!
c) Solve for x given the perimeter of the trapezoid is 277 m.
how do i solve x
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Lilbabyonme hahahahahahahahahahahahay
Answers
Answer: ghrhuydduyfgjrguh
Step-by-step explanation:
jcjdmsjskskms
jsjsksjsmsjdjskaowkdndnd
jsjsksisjsjdhdjeiwksjd
A college professor hands out a list of 10 questions, 5 of which will appear on the final exam for the course. One of the students taking the course is pressed for time and can prepare for MATH 270 Assignment 2 W. Li 2 only 7 of the 10 questions on the list. Suppose the professor chooses the 5 questions at random from the 10. a) What is the probability that the student will be prepared for all 5 questions that appear on the final examination
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Answer:
21 / 252
Step-by-step explanation:
Recall : nCr = n! ÷ (n-r)!r!
The total possible outcome ; 5 questions out of 10
10C5 = 10! ÷ 5!5! = (10*9*8*7*6)÷(5*4*3*2*1) = 252
Required outcome :
All 5 questions set being from the 7 questions covered and 0 from the 3 left uncovered
7C5 * 3C0
7C5 = 7! ÷ 2!5! = (7*6) ÷ (2*1) = 21
3C0 = 3! ÷ 3!0! = 1
Probability = required outcome / Total possible outcomes
P(All 5 questions prepared for appears) :
[7C5 * 3C0] ÷ 10C5
(21 * 1) / 252
= 21 / 252
immigration lead to faster expansion
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Simplify to create an equivalent expression.
1+4(6p-9)
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a soup can has a diameter of 6.7cm and is 10cm tall, the label was printed on a rectangular sheet of paper that is 10cm wide and how long?
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Answer: 6.7 centimeters
Simplify 3t + x + x + 2y and show how you did it help for homework-
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Step-by-step explanation:
3t+x+x+2y3t+2x+2yhope it helps.
stay safe healthy and happy.Step-by-step explanation:
3t + x + x + 2y
we can only add terms with the same letter and since it is only t that is common we add it
giving us;
3t + 2x + 2y
12g^2 + 7g^2 simplify
Answers
Answer:
19g^2
Step-by-step explanation:
Answer:
144 I think????? ????????
Lin missed class and Tyler is helping her use the table to approximate the angle measures that have the ratios listed. Tyler says, “You can use the right triangle table to figure this out.” Lin notices that some of the ratios are the same in each row. Estimate the angles and explain why some of the values are repeated.
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Answer:
d is the correct answer
Step-by-step explanation:
bc i did thid
The angles for which the ratios shown in the table are 55° and 35°.
What is Right Angled Triangle?Right angled triangle are those triangle for which one of the angle is 90 degrees.
For any angle, X, in a right triangle, trigonometric ratios are defined as,
sin X = opposite side / hypotenuse
cos X = adjacent side / hypotenuse
tan X = opposite side / adjacent side
Given is a table which represents the sine, cosine and tangent of two angles in a right angled triangle.
Let x and y be the two angles.
sin x = 0.819, cos x = 0.573 and tan x = 1.428
x = sin⁻¹ (0.819) = cos⁻¹ (0.573) = tan⁻¹ (1.428) = 54.98° ≈ 55°
The sum of the interior angles of a triangle is 180°.
In a right triangle, one angle is already 90°.
Sum of the other two angles = 180° - 90° = 90°.
One angle is got to be 55°.
Then the other angle will be 90° - 55° = 35°.
The sine of 55° is equal to the cosine of 35° and the sine of 35° is equal to the cosine of 55°.
This is because that the opposite side of one angle will be the adjacent side of the other angle.
And the hypotenuse is constant.
sin 55=opposite side/hypotenuse and cos 35=adjacent side/ hypotenuse
Opposite side of 55° and adjacent side of 35° are same.
So they have the same values.
Hence the measures of the angles are 55° and 35°.
Learn more about Right Angled Triangles here :
https://brainly.com/question/28217813
#SPJ2
the circumference of a circle is 128π inches. find the exact length of the diameter.
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Answer:
d≈40.74
Step-by-step explanation:
Using the formulas
C=2πr
d=2r
Solving ford
d=C/ π=128/ π≈40.74367
Hope this helped!!!!!
find the range 15,2,3,7,8,4,3,2,16,2,4
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Answer:
Your range will be about 14.
Answer:
Subtract the minimum data value from the maximum data value to find the data range. In this case, the data range is
16-2= 14
14
please help what is .25?
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Answer:
0.25 is a decimal
Step-by-step explanation:
After working for 24 hours we made 234 after working for 40 hours do we need 390 predict how much she would make after 10 hours of work
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Answer:
97.5
Step-by-step explanation:
234/24=9.75
10x9.75=97.5
PLEASE HELP!!!!!
Let event A= The student plays Basketball
Let event B= The student plays soccer
What is P(A or B)
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Answer: it’s 7/1”
Step-by-step explanation: just took it
how to solve this plzzzzz mark you brinlast
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Step-by-step explanation:
S)
4k²-1=63
4k²=63+1
4k²=64
k²=64/4
k²=16
k=√64
k=8
Ophelia was asked whether the following equation is an identity:
2(x-3)(4x-1)=(4x-6)^2-4(6+x)2(x−3)(4x−1)=(4x−6)
2
−4(6+x)2, left parenthesis, x, minus, 3, right parenthesis, left parenthesis, 4, x, minus, 1, right parenthesis, equals, left parenthesis, 4, x, minus, 6, right parenthesis, squared, minus, 4, left parenthesis, 6, plus, x, right parenthesis
She performed the following steps:
\begin{aligned} &\phantom{=}2(x-3)(4x-1) \\\\ \xhookrightarrow{\text{Step }1}\quad&=(2x-6)(8x-2) \\\\ \xhookrightarrow{\text{Step }2}\quad&=16x^2-4x-48x+12 \\\\ \xhookrightarrow{\text{Step }3}\quad&=16x^2-48x+36-24-4x \\\\ \xhookrightarrow{\text{Step }4}\quad&=(4x-6)^2-4(6+x) \end{aligned}
Step 1
Step 2
Step 3
Step 4
=2(x−3)(4x−1)
=(2x−6)(8x−2)
=16x
2
−4x−48x+12
=16x
2
−48x+36−24−4x
=(4x−6)
2
−4(6+x)
For this reason, Ophelia stated that the equation is a true identity.
Is Ophelia correct? If not, in which step did she make a mistake?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Ophelia is correct.
(Choice B)
B
Ophelia is incorrect. She made a mistake in step 111.
(Choice C)
C
Ophelia is incorrect. She made a mistake in step 333.
(Choice D)
D
Ophelia is incorrect. She made a mistake in step 444.
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Answer:
B
Step-by-step explanation:
the answer is B she didn't set up correctly.
Answer:
Step 1 is incorrect
Step-by-step explanation:
Kahn Academy
Help me please it's 2:00 in the morning and I really need your help with this assignment I have to submit them because the school will be off on June 05 so I have to complete my missing works:( please help
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Answer:
x = 4
Step-by-step explanation:
Here, given that the two triangles are similar, we want to find the value of x
Mathematically, when two triangles are similar, the ratio of their corresponding sides are equal
Thus, we have it that;
ED/EF = XY/YZ
5/2x-1 = 10/14
14(5) = 10(2x-1)
70 = 20x -10
70 + 10 = 20x
20x = 80
x = 80/20
x = 4
Which benchmark is between
7/8
and 7/4
A: 1/2
B: 1
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7/8 = .875
7/4 = 1.75
7/8 < 1 < 7/4
Here are the scores that Jenna has
received on her seven quizzes.
16, 11, 20, 16, 12, 17, 18
What is the upper quartile?
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Answer:
18
Step-by-step explanation:
median = 16
lower quartile = 12
upper quartile = 18
If
the volume of a
cube is 3375 cm3,
find
its
height
and base
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Answer:
If it is a cube then its height and base are equal which is the cube root of 3,375 or 15
Step-by-step explanation:
The amplitude of this graph is?
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Answer:
Step-by-step explanation:
Answer is : 2
ILL MARK YOU BRAINLEIST pls help me out with this .
what are some equations using the digits 0-9 whose soultion is 1/2.
(i need three equations)
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Answer:
Step-by-step explanation:
1. x - 1 = [tex]\frac{-1}{2}[/tex]
x = [tex]\frac{-1}{2}[/tex] +1
x = [tex]\frac{1}{2}[/tex]
2. 8x - 5 =9
8x = 9 - 5
8x = 4
x = [tex]\frac{4}{8} = \frac{1}{2}[/tex]
3. 2[tex]x^{3}[/tex] = [tex]\frac{1}{4}[/tex]
[tex]x^{3}[/tex] = [tex]\frac{1}{4}[/tex] x [tex]\frac{1}{2}[/tex]
[tex]x^{3}[/tex] = [tex]\frac{1}{8}[/tex]
x = [tex]\sqrt[3]{\frac{1}{8} }[/tex]
x = [tex]\frac{1}{2}[/tex]
HELP ASAP!!!!! NO LINKS ALLOWED!!! A, B, C, OR D!!!!
*NO LINKS ALLOWED*
Use the given line(s) from a random number table to select numbers to use in each problem.
Select 5 out of 15 members of the basketball team to start in the game.
81257 04486 87889 81335 22765 13120
82566 41186 53135 87884 83735 85496
21311 07218 26649 39874 03907 23198
32659 11818 56268 84388 59141 58504
Select one:
a. 12, 13, 13, 12, 10
b. 13, 11, 13, 10, 3
c. 8, 12, 5, 7, 4
d. 13, 11, 10, 3, 14
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Answer:
I will pick letter c. 8,12,5,7,4
Answer:
d. 13, 11, 10, 3, 14
Step-by-step explanation:
first (5) two-digit numbers under 15. you also cant have duplicates in your digits. so it would not be B
Please help me please I really need help
Answers
Answer:
(5x-7)(9x²-4x-8)
=5x(9x²-4x-8)-7(9x²-4x-8)
=45x³-20x²-40x-63x²+28x+56
=45x³-83x²-12x+56
Answer:
45x³-83x²-17x+56
Step-by-step explanation:
(5x-7)(9x²-4x-8)
5x(9x²-4x-8) -7 (9x²-4x+56)
45x³-20x²-45x-63x²+28x+56
45x³-83x²-17x+56
I have no idea what the answer so what do you guys think that answer is?
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Because when you look at line y, you go down to where it meets up with line x, (y is negative numbers until it meets with line x) after that it isn’t a negative number and it turns into positive numbers. So it’s 1! I’m so sorry if this is wrong!
GIVING BRAINLIEST PLEASE HELP!!
-if you answer correctly ill give you brainliest which will give you 35pts-
(!!You Have To Match Them!!)
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Answer:
See attached
Step-by-step explanation:
The matching pairs are in the picture
Please solve no explanation needed
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Answer:
Option 3
Step-by-step explanation:
I know you said no explanation is needed but I'm going to give it anyways
(1) Semester 1 and 2 have the same interquartile range (12) so it can't be option 1.
(2) Semester 1 and 2 have the same median so it can't be option 2.
(3) Option 3 is true, semester 2 does have the greater mean.
(4) Semester 1 have the greater third quartile so option 4 can't be true.
1200 bricks each of 0.075m3 volume are required to construct a wall of length 25m and height 9m. Find the breadth of the wall.
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Here's the solution,
Volume of wall :
=》total bricks × volume of each brick
=》1200 × 0.075 m³
=》90 m³
volume of wall :
=》lenght × width × height
=》25 × 9 × width
=》225 × width
now, by equating the volumes, we get
( since they are volume of same wall )
=》225 × width = 90
=》width = 90 ÷ 225
=》width of wall = 0.4 m
HELP ME PLEASE I DON'T UNDERSTAND
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Answer:
For #9 it can be 4,6, or 7
#10 is angle 3
#11 is 134
#12 is 49
Step-by-step explanation:
#9 just look at the picture given and see which one is opposite from it
#10 look at which one is beside it but that the ’half‘ circles are facing each other
#11 and #12 subtract the angles they give you and see if they are next to each other and if they are that subtract the number they give you by 180-the degrees of a line