Answer:
add sll number so you will get answer
dd
Step-by-step explanation:
Please help and show detailed workings for the answers . Tq
Answer:
Below,
Step-by-step explanation:
(a) f is not defined when x = 2 because this would make the denominator = zero.
(i) f-1 is the inverse of f.
Let y = (x + 1)/(x - 2)
y(x - 2) = x + 1
xy - 2y = x + 1
xy - x = 2y + 1
x(y - 1) = 2y + 1
x = (2y +1)/(y - 1)
Replace x by f-1 and y by x , we get:
f-1 = (2x+ 1)(x - 1)
(ii) f-1 is not defined when x = 1 , as this makes the denominator zero.
Determine the whole number of standard deviations that includes all data values. The mean price of the nonfiction books on a best-sellers list is $ 22.58 ; the standard deviation is $ 3.00 .
$ 22.95, $ 18.00, $ 21.00, $ 21.00, $ 22.00, $ 25.00, $ 29.95, $ 22.00, $ 22.95, $ 20.95
All of the values fall within____standard deviation(s) of the mean.
Using z-scores, it is found that all of the values fall within 2.46 standard deviations of the mean.
What is the z-score formula?The z-score of a measure X of a variable with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The z-score measures how many standard deviations the measure is above or below the mean.
In this problem, the farthest variable from the mean is of $29.95, hence X = 29.95 and:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{29.95 - 22.58}{3}[/tex]
Z = 2.46.
Hence, all of the values fall within 2.46 standard deviations of the mean.
More can be learned about z-scores at https://brainly.com/question/24663213
NO LINKS!!!
Please assist with these geometry problems
Answer:
5. ∠TSR ≅ ∠TRS = 72°
6. ∠ORS ≅ ∠OSR = 18°
7. ∠ROS = 144°
Step-by-step explanation:
Segments OT and SR can be drawn to divide the figure into similar right triangles. In these triangles, all of the smaller acute angles are congruent, and all of the larger acute angles are congruent. The smaller and larger acute angles are complementary, as they are in any right triangle.
Segment OT bisects angle T, so the smaller acute angle in each right triangle is 36°/2 = 18°.
__
5.∠TSR ≅ ∠TRS = 90° -18° = 72°
__
6.∠ORS ≅ ∠OSR = 18°
__
7.∠ROS = 2×∠TOS = 2×72° = 144°
Note that this is supplementary to ∠T: ∠O = 180° -36° = 144°.
a bicyclist covered 5/7 of his route and an additional 40 miles. he has yet to cover 118 miles less than 0.75 of his route. how long is his route
The length of the route of a bicylist that has covered 5/7 of his route and an additional 40 miles and yet to cover 118 miles less than 0.75 of his route is 168 miles.
How to form equation and solve for the variable?The bicyclist covered 5 / 7 of his route and an addditional 40 miles.
Let
x = distance of his route in miles
Hence,
distance covered = 5 / 7 x + 40
He has yet to cover 118 miles less than 0.75 of his route. Therefore,
distance not covered = 0.75x - 118
Distance of his route = 5 / 7 x + 40 + 0.75x - 118
x = 5 / 7 x + 40 + 0.75x - 118
x = 1.464x - 78
x - 1.464x = -78
-0.464x = -78
x = 78 / 0.464
x = 168.103448276
x = 168 miles
learn more on equation here: https://brainly.com/question/13887440
what is the momentum of a 4100 Kg elephant walking 0.2 m/s?
Answer:
820 kg·m/s
Step-by-step explanation:
P = mv ⇒ P = (4100×0.2) = 820
A triangle has the dimensions shown. The area of the triangle is..
A) A=6x^2
B) A=7x^2
C) A=12x^2
D) A=7/2 x^2
Answer: A
Step-by-step explanation:
Alex has two designs to build a chest. In each design, the chest is a rectangular prism.
Chest A has dimensions of 5 feet ×3 feet ×214 feet
5
feet
×
3
feet
×
2
1
4
feet
.
Chest B has dimensions of 4 feet ×312 feet ×3 feet
4
feet
×
3
1
2
feet
×
3
feet
.
Part A
How much space does each chest hold? Include units in your answers.
We need volumes
#Chest A
V=LBH
5(3)(214)3210ft³#Chest B
V:-
4(312)(3)3744ft³Answer:
See below ~
Step-by-step explanation:
Chest A
V = 5 x 3 x 214V = 1070 x 3V = 3,210 ft³Chest B
V = 4 x 3 x 312 V = 1248 x 3V = 3,744 ft³⇒ Chest B has more space than Chest A
⇒ Hope it helps ~
Find the area and the circumference of a circle with radius .
Use the value for , and do not round your answers. Be sure to include the correct units in your answers.
Area:
Circumference:
A packet of vegetable seeds has a germination rate of
90%. What is the probability that exactly 10 of 12
seeds planted will sprout?
N = number of seeds planted
P = probability of germination
K = number that germinated
Using probability calculation:
p(x = k) = (n k) x 0.90^K x 0.10^n-k
p(10) = (12 10) x 0.90^10 x 0.10^2
P(10) = 0.2310
13-28 Sketch the region enclosed by the given curves and find its area.
21. [tex]y=\cos x, \quad y=1-2 x / \pi[/tex]
Answer:
Area (A) 0.0682
Step-by-step explanation:
The sketch for the region enclosed by the given curves can be found in the image attached below.
From the image below;
The two curves intersect in the area of tan 9x = 2 sin 9x
Recall that:
making x the subject; then:
The subdivision of the domain is in two intervals
where;
Area (A) =
Area (A) = 0.06818
Area (A) 0.0682
Which of the following ratios is equal to 3:9?
Answer:
1:3
Step-by-step explanation:
You would ultimately reduce the ratio as a fraction.
3/9 reduces to 1/3
Answer:
There are no options, so I'll just give my help
Step-by-step explanation:
3:9 is the same as 1:3 or 6:18, there are unlimited
answers to this question.
1. Multiply or divide the numerator, 3
and the denominator, 9. They have to be multiply by the same number.
Ex: 3:9
3 times 4 is 12
9 times 4 is 36
12/36 is equal to 3:9. Check the answer choices to see
if they are multiplied or divided by the same number. If they are, it is correct. If it isn't, it's not equal.
Hope this helps.
-Angelo.
What is the equation of this graph?
Answer:g(x) = f(x) + 1.5
Step-by-step explanation:g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5g(x) = f(x) + 1.5
Problem * A pack of 8 pairs of socks cost $4.00 at the store. How much does it cost for each pair of socks? A $0.80 B $0.40 40) с $0.50 D $1.00
QUICK PLEASE ANSWER ITTT
Answer:
4 3/4 liters
Step-by-step explanation:
2 1/2 + 2 1/4 = 4 3/4
Pepe is putting up a fence in his backyard to enclose a garden in form of a triangle. The garden
already has sides enclosed with eight feet and five feet of fence, respectively. What can you say
about the length of the third side?
A
The side needs a fence that is shorter than 8 ft. but not necessarily longer than 5 ft.
The side needs a fence that is longer than 3 ft. and shorter than 13 ft.
C
The side needs exactly 8 ft. of fence.
The side needs exactly 11 ft. of fence.
D
Answer:
We know that in a triangle, given two sides, the third one must be smaller than the sum of the given sides, but greater than their difference:
z < x + y
z > x - y
Therefore, the length of the third side will be between the difference and the sum of the other two sides. In our case:
x + y = 13
x - y = 3
Hence, the correct answer is: B) The side needs a fence that is longer than 3ft. and shorter than 13ft.
Step-by-step explanation:
Find the sum and product of the complex numbers 4-3 i and - 4 + 5 i
Step-by-step explanation:
Sum
(4-3i)+(-4+5i)
=4-4-3i+5i
=0+2i
=2i
Product
(4-3i)(-4+5i)
=4(-4)-3i(-4)+4(5i)-3i(5i)
=(-16)+7i+20i-15i²
-16+27i-15(-1) [i²=(-1)]
=27i-16+15
=27i-1
=(-1+27i)
I hope it helped you
Find the circumference and the area of a circle with radius .
Use the value for , and do not round your answers. Be sure to include the correct units in your answers.
Answer:
the answer is in the picture
A piece of equipment is purchased for $18,000.00 and has a salvage value of $2,000.00. The estimated life is 10 years and the method of depreciation is straight-line. Shipping costs total $620.00 and installation costs are $590.00. The book value at the end of year 10 is
You have 68 feet of fencing to enclose a rectangular plot that borders on a river. If you DO NOT fence the side
along the river, find the dimensions of the plot that will maximize the area.
Answer:
168 = L + 2W
And you want to maximize LW.
Which means you want to maximize W (168 - 2W), or 168W - 2W^2.
To maximize that, the derivative must go to zero.
0 = 168 - 4W, or W = 42. And L = 84. Done. :-)
Step-by-step explanation:
Solve the differential equation:
X+1)dy/dx+y=1/x.
NO LINKS!! Please help me
GHIJK ≅ UVWST
===============
Given for 1st shape:
GK = 16KJ = 16IJ = 24IH = 16GH = 24Given for 2nd shape:
WS = 18===================
WS ≅ IJ
Solve for UV:
[tex]\rightarrow \sf \dfrac{UV}{WS} =\dfrac{GH}{IJ}[/tex]
[tex]\rightarrow \sf \dfrac{UV}{18} =\dfrac{24}{24}[/tex]
[tex]\rightarrow \sf UV =18[/tex]
Solve for ST
[tex]\rightarrow \sf \dfrac{ST}{WS} =\dfrac{JK}{IJ}[/tex]
[tex]\rightarrow \sf \dfrac{ST}{18} =\dfrac{16}{24}[/tex]
[tex]\rightarrow \sf ST = 12[/tex]
Solve for VW
[tex]\sf \rightarrow \dfrac{VW}{WS} = \dfrac{HI}{IJ}[/tex]
[tex]\sf \rightarrow \dfrac{VW}{18} = \dfrac{16}{24}[/tex]
[tex]\sf \rightarrow VW = 12[/tex]
Let's see
WS/UV=GH/IJ18/UV=24/2418/UV=1UV=18#ST
WS/ST=IJ/JK18/ST=24/1618/ST=3/23ST=36ST=12#VW
WS/VW=IJ/IH18/VW=24/16VW=12• 2) During a recent survey of 10,000 students at college: 6854 have a laptop, 3476 have a tablet, and 2163 have both a laptop and a tablet.
1: how many students do not have a tablet?
2: how many students have a mobile computing device (laptop or tablet)?
Answer:
6854 do not have a tablet
2163 have a mobile computing device
Step-by-step explanation:
You just have to read it.
15 Which expression is equivalent to 4(u + 3)?
A 40 + 3
© 40 + 12u
B 40 + 7
D 4u + 12
D, sorry if wrong!!
have a good day
Answer:
D. 4u + 12
Step-by-step explanation:
Distributing the 4 to each term in the parenthesis:
4(u) + 4(3)
= 4u + 12
hope this helps :)
Consider the following equation.
2x - y = - 10
Step 2 of 2: Determine the missing coordinate in the ordered pair (?, 6) so that it will satisfy the given equation.
use the rules of significant figures to simplify the following expression: 47.5-6.12
Using the rules of significant figures the expression 47.5-6.12 can be simplified as 41.38.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The number 6.12 has two digits after the decimal while the number 47.5 has only one digit after the decimal therefore, as per the law of significant figures, to deduct 6.12 from 47.5, we need to put one zero at the end of 47.5.
Also, there are two digits in 47.50 before the decimal while 6.12 has only one, therefore, As per the law of significant figures, one zero will be added before 6.12. Thus, the deduction now can be done as,
4 7 . 5 0
- 0 6 . 1 2
4 1 . 3 8
Hence, Using the rules of significant figures the expression 47.5-6.12 can be simplified as 41.38.
Learn more about Expression:
https://brainly.com/question/13947055
#SPJ1
One thing ONLY reptiles have
Answer:
Reptile, any member of the class Reptilia, the group of air-breathing vertebrates that only have:
internal fertilization amniotic developmentepidermal scales covering part or all of their bodythey have backbonescold-bloodedthey can produce shelled eggs or bear live youngfertilize eggs internallyhave at least one lungA line has a slope of - 7.
-
(a) What is the slope of the line parallel to it?
(b) What is the slope of the line perpendicular to it?
I need help
Answer:
(a) m = -7
(b) m = 1/7
Step-by-step explanation:
Since parallel lines never overlap, the slopes (m) must be equal. Therefore, a parallel line to a line with a slope of (m = -7) must also have a slope of (m = -7).
Perpendicular lines run opposite of parallel lines. As a result, the sign of the perpendicular slope must be the opposite. Since this slope is negative, the perpendicular slope must be positive. The actual numerical value of a perpendicular slope is equal to one over the slope. Therefore, if a line has a slope of (m = -7), the perpendicular line's slope must be (m = 1/7).
The sale price of a backpack is $45.00. This is 75% of the original price.
What was the original price of the backpack?
$33.75
$36.00
$56.25
$60.00
Answer:
$60.00
Step-by-step explanation:
75% OF X (original price) = $45
.75x = $45
divide both sides by .75 to isolate X
.75 / .75 = $45 / .75
X= $60
Box A has a volume of 64 cubic meters. Box B is similar to box A. To create Box B, Box A's dimensions were divided by 2. What is the volume of Box B? 128 m3 8 m3 32 m3 16 m3
The final statement is: The volume of box be is equal to 8 m³
What is a volume in math?Every three-dimensional object occupies some space. This space is measured in terms of its volume. Volume is defined as the space occupied within the boundaries of an object in three-dimensional space. It is also known as the capacity of the object.
Given here: Volume of Box A= 64 m³
Let the dimensions of box be a each
Then we have dimensions of box b are a/2 each
Therefore volume of box b is = a/2×a/2×a/2
=a³/8
= 64/8
=8
Hence, The volume of box be is equal to 8 m³
Learn more about volume here:
https://brainly.com/question/13057463
#SPJ1
A police officer recorded the speeds of the first six cars whose drivers he ticketed for speeding today.
Car Speed
(miles per hour)
1 67
2 74
3 85
4 80
5 74
6 82
What is the mean of the cars' speeds?
Mean is average.
Add the speeds together and divide by number of cars:
67 + 74 + 85 + 80 + 74 + 82 = 462
462/6 = 77
Mean = 77 miles per hour