Answer:
Solving an equation means finding the value or values for which the two expressions are equal. ... An identity is an equation which is always true, no matter what values are substituted.
A trig identity is an equation that is true for all values of x;
For example:
sin²x + cos²x will always equal 1 no matter what the value of x.
There are some equations considered to be identities that are in fact not true all the time.
tan(2x) = 2tanx/(1 - tan²x) is not true when x = π/2 (right side is undefined).
A conditional equation is one that is true for a subset of the real numbers, i.e. for certain values of x, but not all.
For example:
sin²x - 1 = 0 is only true for some values of x.
sin²x = 1
sinx = ±√(1) = ±1
sinx = 1 or sinx = -1
x = sin-11 or x = sin-1(-1)
x = π/2 + 2kπ, k any integer or x = 3π/2 + 2kπ, k any integer (this can be condensed, but left this way for emphasis).
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what is the value of this questiom ?
Find the 25th term: 53, 50, 47, 44, 41,
Answer:
-19
Step-by-step explanation:
38
35
32
29
26
23
20
17
14
11
8
5
2
-1
-4
-7
-10
-13
-16
-19
The 25th term of the given arithmetic sequence is -19.
The given arithmetic sequence is 53, 50, 47, 44, 41.
What is an arithmetic sequence?An arithmetic sequence is a sequence of numbers where the differences between every two consecutive terms is the same. The general form an arithmetic sequence is an=a+(n-1)d
Here the first term of the sequence is a=53 and the common difference is
50-53=-3
Put, a=53, d=-3 and n=25 in the general form an arithmetic sequence, we get
a25=53+(25-1)×(-3)
= 53+24×(-3)
= 53-72
= -19
Therefore, the 25th term of the given arithmetic sequence is -19.
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hiii please help i’ll give brainliest:)
Answer:
I would choose A
Step-by-step explanation:
What are the coordinates of the point on the directed line segment from (−1,−8) to (5,−2) that partitions the segment into a ratio of 1 to 2?
I need help quick
Answer:
There are two possible options: [tex]P(x,y) = (1, -6)[/tex] or [tex]P(x,y) = (3, -4)[/tex].
Step-by-step explanation:
There are two possible options depending on what the point of origin is. Vectorially speaking, we can determine the coordinates of the point that partitions the segment is described below:
[tex]P(x,y) = A(x,y) + r\cdot [B(x,y) - A(x,y)][/tex] (1)
Where:
[tex]A(x,y)[/tex] - Point of origin.
[tex]B(x,y)[/tex] - Point of destination.
[tex]r[/tex] - Partition factor.
Option 1: [tex]A(x,y) = (-1, -8)[/tex], [tex]B(x,y) = (5, -2)[/tex], [tex]r = \frac{1}{3}[/tex]
[tex]P(x,y) = (-1, - 8) + \frac{1}{3}\cdot [(5,-2)-(-1,-8)][/tex]
[tex]P(x,y) = (-1, -8) + \frac{1}{3}\cdot (6,6)[/tex]
[tex]P(x,y) = (-1,-8) + (2,2)[/tex]
[tex]P(x,y) = (1, -6)[/tex]
Option 2: [tex]A(x,y) = (5,-2)[/tex], [tex]B(x,y) = (-1,-8)[/tex], [tex]r = \frac{1}{3}[/tex]
[tex]P(x,y) = (5,-2) + \frac{1}{3}\cdot [(-1,-8)-(5,-2)][/tex]
[tex]P(x,y) = (5,-2) +\frac{1}{3}\cdot (-6,-6)[/tex]
[tex]P(x,y) = (5,-2) +(-2,-2)[/tex]
[tex]P(x,y) = (3, -4)[/tex]
There are two possible options: [tex]P(x,y) = (1, -6)[/tex] or [tex]P(x,y) = (3, -4)[/tex].
what is the value of x in this equation??
50+30x=250+10x
Answer:
x = 10
Step-by-step explanation:
once again some one good at 7th grad math i need your help
Answer:
(1.) -32.4 (2.) 99.94
Step-by-step explanation:
plz mark 5 str, helpful, and brainliest!
I need help with this
The sum of the digits in a two digit number is 5. If 27 is subtracted from the number then places of the digits are interchanged. Find the number. Please answer this with clarification! Thankyou<3
Please find the attached photograph for your answer
Which of these quadrilaterals are rectangles?
Quadrilateral
Rectangle/Not rectangle
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Co
MY
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Answer:
a square can be a rectangle so I would think that the first and second option would be rectangles.
Step-by-step explanation:
I hope this helped sorry if not
can some one give me a hand here???????
Mr. Crawford put $4500 into bank at an interest rate of 3%. How much money will she have in the back after 5 years?
Explain please. Brainlist if correct.
Answer:
He will have $5175.
Step-by-step explanation:
3% of 4500 is 135. 135x5=675. Add 675 to 4500 which equals 5175.
Guys pls help me!!!!!!
Answer:
Horizontal lines have no vertical change -- it continues straight left or right. In other words, the change in the y values between any points on the graph is 0, since there is no change. This means that the slope of a horizontal line is 0
Step-by-step explanation:
hope this helps
Answer:
0
Step-by-step explanation:
The line's slope remains constant throughout, its a line that passes through the y - axis therefore it's slope will be 0.
Mr. pope lost 10 pounds in one month. At the end of the month, he weighed 240 pounds. By what percentage did Mr. Pope decrease he weight?
a. (4%)
b. (7%)
c.(10)
d.(15%)
Mr. Pope decreased his weight by 4 percent.
What is percentage?A percentage is a portion of a whole thing written as a number between 0 and 100 instead of fraction.
Given that, Mr. pope lost 10 pounds in one month. At the end of the month, he weighed 240 pounds.
we need to find the percentage of decrease of his weight,
So, basically we will use here the concept of percentage change,
Formula = final amount - initial amount / initial amount x 100
Since, he lost 10 pounds and has 240 pounds so, initially he weighted = 240 + 10 = 250 pounds
So, percentage decreased = -10 / 250 x 100 = -4% [minus is the sign for decrease]
Hence, Mr. Pope decreased his weight by 4 percent.
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Pls help me on this what is the correct answer
Answer:
C 61,705
Step-by-step explanation:
10.9% of 35,000 = 3,815
3,815 x 7 = 26,705 (interest is added per year and 3,815 is the interest amount)
35,000 + 26,705 = 61,705 ( the original loan plus the interest for 7 years)
Expressions equivalent to 3^10
Answer:
59049+0
59048.1+0.9
59048.01+0.99
...
Step-by-step explanation:
There's infinite.
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{3^{10}}[/tex]
[tex]\mathsf{= 3\times 3\times3\times 3 \times 3\times 3\times3\times3\times3\times3 }[/tex]
[tex]\mathsf{3\times3 = \bf 9}[/tex]
[tex]= 9\times9\times 9\times 9\times9[/tex]
[tex]\mathsf{9\times9 = \bf 81}[/tex]
[tex]\mathsf{= 81\times81\times 9}[/tex]
[tex]\mathsf{81 \times 81 = \bf 6,561}[/tex]
[tex]\mathsf{= 6,561\times9}[/tex]
[tex]\mathsf{\bf = 59, 049}[/tex]
[tex]\boxed{\boxed{\large\text{Answer: \huge \bf 59,049}}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
What are the solutions to the equation 3^2 + 6 − 31 = −7? & Explain how you determined your answer
Answer:
The left side
−
16
does not equal to the right side
−
7
, which means that the given statement is false.
False
Step-by-step explanation:
Answer:
false
Step-by-step explanation:
9+6-31=-7 -16=-7
Choose the expression that represents a quadratic expression.
A.) 6x4 − 5x3 + 3x2 −7x − 8
B.) 5x3 + 3x2 −7x − 8
C.) 2x2 + 3x − 1
D.) 3x − 1
Answer:
C. 2x^2 + 3x - 1
is the answer
The base of a ladder is 10 feet from the side of a building. The top of the ladder reaches a window that is 24 feet above the ground, What is the length of the ladder? A. 14 ft B. 22 ft C. 26 ft D. 34 ft
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the concept of Pythagorus theorem,
here, the perpendicular height = 24 ft and the base = 10ft ,
hence then length of the ladder is the Hypotenuse.
so we get as,
[tex]l \: = \sqrt{ {24}^{2} + {10}^{2} } [/tex]
[tex]l \: = \sqrt{576 + 100} [/tex]
[tex]l \: = \sqrt{676} [/tex]
hence, l = 26 ft
so the length of the ladder is 26 feets.
Answer: 26
Step-by-step explanation:
Find the length of x.
find the Missing angle
Answer:
50
Step-by-step explanation:
70+60 =130
180-130 = 50 degrees
Answer: 50
Step-by-step explanation: Every triangle is 180 degrees so add the 60 and the 70 to get 130. 180-130=50. So 50 is your answer.
Find the solution of 64 = 16u algebraically.
please I’m desperate
Answer:
u = 4
Step-by-step explanation:
Divide by 16 on both sides. [Division Property of Equality]
64/16 = 16u/16
u = 4
==================================================================Hope I Helped, Feel free to ask any questions to clarify :)
Have a great day!
More Love, More Peace, Less Hate.
-Aadi x
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
c the student who missed 14 items
Answer:
The answer is B: The student who missed 14 items caused the distribution to be skewed to the right.
PLEASE HELP!! ILL MARK BRAINLYEST!!
Which graph is best to show categorical data?
A. box-and-whisker plot
B. line graph
C. scatter plot
D. circle graph
Answer:
A
Step-by-step explanation:
The figure below is a net for a right rectangular prism.
7 m
8 m
7 m
14 m
7 m
7 m
What is the surface area of the right rectangular prism, in
square meters?
The surface area of the right rectangular prism has a length of 7 m, a width of 8 m, and a height of 14 m, is 532 square meters.
What is a rectangular prism?A rectangular prism is a closed solid that has two parallel rectangular bases connected by a rectangle surface.
The figure below is a net for a right rectangular prism.
Then the surface area of the rectangular prism will be
Surface area = 2(LW + WH + HL)
Surface area = 2(7 × 8 + 8 × 14 + 14 × 7)
Surface area = 2(56 + 112 + 98)
Surface area = 2 × 266
Surface area = 532 square meters
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What is the slope and y - intercept of the function y = 2x + 1?
Answer:
Slope: 2/1 Y-Intercept: 1
Step-by-step explanation:
I'll give you brainiest if you help me.
Answer:
88 degrees.
Step-by-step explanation:
Since AB is equal to BC, ABC is an isosceles triangle. Therefore, the angle of B will be 180-39-39=102 degrees. As the angle of a straight line is 180 degrees, take 180-102-32=46 degrees. This 46 degrees is angle B. Since DEB is an isosceles triangle, 180-46-46=88 degrees. 88 degrees is angle E which is your answer. Edit: (Just added on the explanation.)
Find the maximum walking speed of a coyote with legs 0.46 m long. How much faster can a giraffe walk than a coyote?
Answer:
7.03 ft/s
Step-by-step explanation:
To obtain speed using the model :
Speed = sqrt(gL)
L = Length of leg, g = acceleration due to gravity
Length of leg of a giraffe = 6.03
g = 9.8 m/s or 32 ft/s²
Speed of giraffe in ft/s = sqrt(32 * 6.03) = 13.89 ft/ s
Speed of coyote ; L = 0.46 m
L in feets = 0.46 * 3.23 = 1.4858 feets
s = sqrt(1.4858 * 32) = 6.895 ft/s = 6.86 ft/s
Difference in speed :
13.89 - 6.86 = 7.03 ft/s
Giraffe has 7.03ft/s more speed Than a coyote
A large farm tractor costs $98,424, If a farmer makes 36 equal payments, how much Is each payment?
Answer:
Step-by-step explanation:
2,734 is your answer.
A rectangle has an area of 30 square meters and a perimeter of 34 meters. What are the dimensions of the rectangle.
Answer:
15m times 2m
Step-by-step explanation:
In ADEF, the measure of
measure of ZD to the nearest degree.
E
52
X
F
D
14
Answer:
74 degrees
Step-by-step explanation:
Assuming we have the following
FD = 14
DE = 52
m<F = 90degrees
Required
m<D
DE = hypotenuse
FD = adjacent
Using the SOH CAH TOA identity
Cos m<D = adj/hyp
Cos m<D = 14/52
m<D = arccos(0.2692)
m<D = 74.38
m<D to the nearest degree is 74degrees
