Correct question:-
Prove that tan9.tan17.tan45.tan73.tan81=1
LHS
[tex]\\ \sf\longmapsto tan9.tan17.tan45.tan73.tan81[/tex]
[tex]\\ \sf\longmapsto tan9.tan81.tan17.tan73.tan45[/tex]
[tex]\\ \sf\longmapsto tan(90-81).tan81.tan(90-73).tan73.1[/tex]
[tex]\\ \sf\longmapsto cot81.tan81.cot73.tan73[/tex]
[tex]\\ \sf\longmapsto 1.1[/tex]
[tex]\\ \sf\longmapsto 1[/tex]
what is
m(x)=4x+15; m(x)=7
Answer:
x = -2
Step-by-step explanation:
m(x) = 4x+15; m(x) = 7
7= 4x+15
7-4x=15
-4x=15-7
-4x=8 / :(-4)
x= -2
please help me i’m being timed
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What do you need help with?
PLS HELP WILL MARK BRAINLIEST, NO FAKE ANSWERS OR WILL BE REPORTED.
False
Like terms have the same literal coefficients but can have different Numerical Coefficients
Hope this helped you- have a good day bro cya)
Answer:
False
Step-by-step explanation:
Like Terms:
Two or more terms that have the same literal coefficients are called Like Terms. Like terms can have different Numerical Coefficients, but not literal coefficients. ... -13p2q2 and 13 p2q2 are Like terms as only the numerical coefficients are different but the literal coefficients are same
Find an equivalent system of equations for the following system:
2x + 4y = 4
−5x + 5y = 5
A. 2x + 4y = 4
−3x + y = −1
B. 2x + 4y = 4
7x + 5y = −1
C. 2x + 4y = 4
7x − y = 5
D. 2x + 4y = 4
7x − y = −1
PLEASE HELP I WILL GIVE YOU BRAINLIEST ANSWR!!!!!!
Answer:
Domain: (- infinity, infinity) Range: (-infinity, infinity)
Step-by-step explanation:
ok. look at the x axis.. the graph goes on forever... now y axis, it continues so both are infinity.
How to find the slope
(In general)
Using two of the points on the line, you can find the slope of the line by finding the rise and the run. The vertical change between two points is called the rise, and the horizontal change is called the run. The slope equals the rise divided by the run: Slope =riserun Slope = rise run .
Type of Slope: Visual Description
Undefined: vertical
Negative: downhill
A triangle is rotated 90° about the origin. Which rule describes the transformation?
(x, y) - (x, y)
(x,y) - (y,x)
(x,y) - Gy. -x)
(x, y) - (y. -)
Answer: The rule (x,y)=(y,-x) describes the
transformation
Step-by-step explanation:.........bc
please help i reward brainliest ;)
Leila runs at 12 miles per hour. Find the number of miles she can travel if she runs for 3 more than t hours.
Answer:
If she runs for three hours, then she'll run 36 miles
Going at the speed she is going, Leila can travel a distance of 12(3 + t).
The distance that a person can travel is found by:
= Speed x time
The speed here is 12 miles per hour
Time = 3 more than t hours = (3 + t hours)
The distance Leila would have gone is therefore:
= 12 x (3 + t)
= 12 (3 + t)
In conclusion, as the question is not complete, the relevant expression to find the distance is 12 ( 3 + t)
Find out more at https://brainly.com/question/11317310.
2.4x + 7.2 – 4.3 plz.
Answer:
2.4x+2.9
Step-by-step explanation:
Ken have 9 1/2 cookies. Ken have to split the cookies evenly among 20 people. How much does each person get? [ PLEASE HELP WITH EXPLANATION :D ]
Answer:
9 1/2 ÷20
9/1 +1/2 ÷20 ( convert to an improper frqction)
18/2 + 1/2 ÷20 ( Multiply 9/1 by 2/2)
19/2 ÷20 ( add 18/2 and 1/2)
19/2 ×1/20 (dividing by 20 is the same as multiplying by 1/20)
19/40
0.475
-½(x + 1¼) = - 3 + ¼x
Solve for x
Answer:
x = (23 + √ 497 / 8) , (23 − √ 497 /8)
x=5.66168710
Step-by-step explanation:
im too lazy. use math-way
SOMONE HELP ME I HAVE
TO DO THIS AFTER SCHOOL PLS ASAP!!!
Answer:
1 no
2 I don't know
3 no
4 yes
5 2.5 is the slope
6 -0.5
7 no slope
Step-by-step explanation:
1 no because the y overlaps
2 not sure
3 it over laps
4 it never overlaps
5 y=2.5x-3
6 y=-0.5x+1
7 no slope it's just x=-2
for the 5-7 you can type that into demos and get more info
y=mx+b
m is the slope and b is y intercept
Your friend drinks 2/3 of water. You dink 5/7 of a bottle of water find the difference of the amounts of water lift in each bottle
Answer:
the difference is 1/21
Step-by-step explanation:
2/3 equals 14/21 and 5/7 equals 15/21
Two sides of a triangle have lengths 6 and 16. Which inequalities represent the possible
lengths for the third side, x?
Answer:
22 > x > 10
Step-by-step explanation:
By the triangle inequality, the length of the 3rd side must be less than the sum of the two other sides and greater than the positive difference of the other two sides. Thus, 6 + 16 > x > 16 - 6
22 > x > 10
Factor the expression
Answer:
(x−1)(x+2)(x+2)
Step-by-step explanation:
x2(x−1)+4x(x−1)+4x−4
x3+3x2−4
=(x−1)(x+2)(x+2)
Answer:
( x - 1 ) ( x + 2 )²
Step-by-step explanation:
→ Factor out 4x - 4
4 ( x - 1 )
→ Rewrite
x² ( x - 1 ) + 4x ( x - 1 ) + 4 ( x - 1 )
→ Factor out x - 1
x - 1 ( x² + 4x + 4 )
→ Factor the quadratic inside
( x - 1 ) ( x + 2 )²
Solve algebraically for all values of x:
8x^4-70x^3-18x^2
Answer:
x= 0
x= 9
x= -1/4
Step-by-step explanation:
(look at the pic I posted)
Find the volume of the cube that measures 3.14 inches by 3.14 inches by 3.14 inches.
Answer:
30.959144 inches^3
Step-by-step explanation:
Voume of cube =l^3
Here, l=3.14, so
V=3.14^3
30.959144 ^3
Answer:
V= a^3 or for one edge it’s really
V ~ 30.96
Step-by-step explanation:
help with this question
Answer:
C) (x-3)(x+3)
Note:
Just a tip there is an app called Desmos where you can put in equations like this and it will graph them for you.
what is 4 divided by 2 3/4. for 6th grade math
Answer:
3 1/3
Step-by-step explanation:
4/(2 3/4)
4/(6/4)
4÷6/4
4*4/6
20/6
3 2/6 =3 1/3
Mamadou has a points card for a movie theater.
He receives 55 rewards points just for signing up.
He earns 7.5 points for each visit to the movie theater.
He needs at least 100 points for a free movie ticket.
Write and solve an inequality which can be used to determine
v
v, the number of visits Mamadou can make to earn his first free movie ticket.
Answer:
Inequality: 7.5v+55≥100
Answer: v≥6
Step-by-step explanation:
Have a good day :)
The inequality for the given situation is 7.5v+55≤100.
Given that, Mamadou receives 55 rewards points just for signing up. He earns 7.5 points for each visit to the movie theater. He needs at least 100 points for a free movie ticket.
What is an inequality?Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
The number of visits Mamadou can make to earn his first free movie ticket is v.
The inequality for the given situation is 7.5v+55≤100
Subtract 55 on both the sides of inequality.
That is, 7.5v+55-55≤100-55
⇒ 7.5v≤45
⇒ v=45/7.5
⇒ v=6
Therefore, the inequality for the given situation is 7.5v+55≤100.
To learn more about the inequality visit:
https://brainly.com/question/20383699.
#SPJ5
Which of the following intervals is equivalent to the statement -3
1. (-3,9]
2. [-3,9)
3. (-3,9)
4. [-3,9]
Answer: choice 3
Step-by-step explanation:
Which of the following is an example of a set of like terms? *
17y, 17, y
15x, -x, 33x
18, 21g, 24
-5x, -5xy, -5y
2. Aroot beer factory produces 132,554 cases in 100 days. About how many cases does the factory produce
in 1 day? Round your answer to the nearest tenth of a case Show your thinking on the number line
Today, both the soccer team and the basketball team had games. The soccer team plays every 4 days and the basketball team plays every 5 days.
Answer:
20
Step-by-step explanation:
Assuming you are referring to the day that both teams would play on the same day, it would be the 20th.
There are two ways you can do it.
1. List out the multiples of each number
2. multiply the two days together
If you want to do it the first way it would look like this...
5 10 15 20
4 8 12 16 20
When you do it like this it shows you that the 20th day is the day they would both play together
If you want to do it the second way it would look like this...
4th day X 5th day = 20th day
Either way you solve the problem you get the same answer, this may not work for every problem like this, but it works for this particular one
A mineral's density is 5g/cm and its volume is 2cm. What is the mass?
Answer:
10kg//
Step-by-step explanation:
density=5g/cm
volume=2cm
mass=?
we know,
density=m/v
d×v=m
m=5×2
hence,10kg//
Answer:
10g/cm
Step-by-step explanation:
If [tex]Distance= \frac{Mass}{Volume}[/tex]
Then
Mass = Density x Volume
what is one way to find the number of minutes in 7 hours?
Answer:
Seven dived by 60
Step-by-step explanation:
60 minutes makes an hour, so if you divide 7 hours by 60 minutes you could easily get an answer.
Multiplication.
because 1 hour = 60 minutes
and for you, there is 7 hours, you'd just do 7 x 60.
The answer would be the number of minutes (in those seven hours).
7 x 60 is 420 minutes just in case you were wondering.
What is the measure of NRS?
Answer:
C. 113°Step-by-step explanation:
(7x - 1) + 79° = 21x + 8
• An exterior angle of a triangle is equal to the sum of its two interior opposite angles.
[tex](7x - 1) +79 = 21x + 8 \\ 7x - 1 + 79 = 21x + 8 \\ 7x + 78 = 21x + 8 \\ 78 - 8 = 21x - 7x \\ 70 = 14x \\ \frac{70}{14} = x \\ 5 = x \\[/tex]
NRS = 21x + 8
[tex]21x + 8 \\ 21(5) + 8 \\ 105 + 8 \\ {113}^{o} [/tex]
Gene is creating a rectangular prism. The base of his prism is shown below. He plans to have a height of 5 cubes.
Answer:
its equals 30 cubic units
Happy To Help :) Pls mark brainliest
Step-by-step explanation:
Zach is trying to decide which of three golf
courses is the best. He randomly surveyed
people at a sports store and recorded the
results in the table. Is the sample method
valid? If so, suppose Zach surveyed 150
more people. How many people would be
expected to vote for Rolling Meadows?
Justify your answer.
Answer:
No, the population of people is poorly represented with this low sample size. 150 would better represent the population as a whole. 42 people would want to play on Rolling Meadows. (according to the previous data)
Step-by-step explanation:
Most likely this small sample size is too small to gain sufficient data from the whole population. If he were to survey a larger sample of people, he would overall better represent the population as a whole. The percentage of people who would prefer Rolling Meadows in the first sample was 28% (7/25). So just multiply 150 times .28 and get 42. 42 people would want to play on Rolling Meadows.
