A) 11.7
Step-by-step explanation:
sin 20/4=sin 87/c
sin 87×4=sin 20c
3.9945=0.3420c
c=3.9945/0.3420
c=11.7
M(x)=x^2-3x
N(x)=x-5
MN(-1)= ?
A.18
B.-20
C.-22
D. -24
Answer:
d. -24
Step-by-step explanation:
M(-1)=(-1)^2-3(-1)
M(-1)=1+3
M(-1)=4
N(-1)=-1-5
N(-1)=-6
MN(-1)=(4)(-6)
MN(-1)=-24
TOPIC: similtaneous linear equations
p1 + 2q = 3,
p - 2q = 3
Answer:
q-0
p-3
Step-by-step explanation:
there are two ways to solve elimination or substitution method I'll use the latter
so take the second equation and find an expression equal to p
p-2q=3
p=2q+3
substitute the above expression in the first equation
(2q+3)1+2q=3
open brackets
2q+3+2q=3
collect like terms
4q+3=3
solve
4q=0
q=0
substitute q in any equation you want I'll choose the second
p-(2×0)=3
p-0=3
p=3
Answer:
p = 3 ; q = 0
Step-by-step explanation:
In this linear pair of eqn. in 2 variables , they have a unique solution i.e. they will have only single solution . We know that
[tex]p + 2q=3[/tex] & also [tex]p -2q=3[/tex] . So, we can also equate them as :-
[tex]p + 2q = p-2q[/tex] (∵ Both the eqn. have 3 in their right hand side product )
Solving the eqn. gives,
[tex]=> 2q + 2q = p-p\\=> 4q=0\\=>q=0[/tex]
Putting the value of q in any one of the linear eqn gives ,
[tex]p+2q=3\\=> p+2(0)=3\\=>p+0=3\\=>p=3[/tex]
What number is the opposite of 75
PLEASE HELP QUICKLY ILL GIVE BRAINLIEST!!!
Answer:
5.89
Step-by-step explanation:
convert the fraction to a decimal and you get 5.375 so 5.89 is the biggest
Laura is 32 feet below the surface in a cave. If she ascends 8 feet, find her new position relative to the surface.
If Laura ascends 8 feet, her new position relative to the surface is 24 feet below the surface.
How to assign sign to the like and unlike algebraic expression coefficients?If the direction is same (like coefficients), we add them and if the direction is opposite (unlike coefficients) then we subtract them. The sign can be taken as per our convenience for a particular direction.
Similarly, as given, if Laura is 32 feet below the surface in a cave (say negative direction)
- 32 feet
and then further she ascends 8 feet that is upward direction (say positive direction),
+ 8 feet
then for calculating final distance of Laura position from surface, we get the expression as:
-32 + 8 = - 24
Hence the final result value is negative 24, it means Laura is bellow the surface, by the distance of 24 feet.
To learn more about algebraic expression, refer to the link:
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The bill from your plumber was $134. The cost for labor was $32 per hour. The cost for materials
was $46. How many hours did the plumber work.
Answer:
2.75 hours, or 2 hours and 45 minutes
Step-by-step explanation:
Subtract the cost of materials from the bill, 134-46=88.
Then, for every hour, he charges 32, so divide the difference by 32, 88/32.
HELPP PLZ LIKE RIGHT NOW
Answer:
[tex]( - 4 \: - \frac{1}{2} ) \: or \: \\ ( - 4 \: - 0.5)[/tex]
Step-by-step explanation:
According to the graph,
[tex](5,-4)=(x_1,y_1) \\
(-3,3)= (x_2, y_2)[/tex]
Midpoint= Image above
Carina spent a total of $5.27 buying a pineapple for $3.40 and some tomatoes that were on sale for $0.85 per pound. To determine the number of pounds of tomatoes that she bought, x, Carina wrote and solved the equation as shown below.
3.40 + 0.85 x = 5.27. 0.85 x = 8.67. x = 10.2 pounds.
Where, if anywhere, did Carina make an error?
Carina did not make any errors.
The initial equation that Carina wrote was incorrect.
Carina should have subtracted 3.40 from 5.27.
Carina should have divided 8.67 by 0.85.
Answer:
C. Carina should have subtracted 3.40 from 5.27
Step-by-step explanation:
I'm just smart like that
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Brianna Edwards
e d g e n u i t y things
Thanks
-ReMiNdEr: Always vote brainliest
The mistake that Carina made is she should have subtracted 3.40 from 5.27.
How many pounds of tomatoes was bought?The equation that represents the total amount spent is: $5.27 = $3.40 + $0.85x
In order to determine the value of x, take the following steps:
Combine similar terms: 5.27 - 3.40 = 0.85Add similar terms: 1.87 = 0.85xDivide both sides of the equation by 0.85: 2.2 poundsTo learn more about addition, please check: https://brainly.com/question/349488
ITS BEEN AN HOUR LS ILL GIVE BRAINLITST
Answer:
38.81%
Step-by-step explanation:
Circle area = п r ²
п = 3.14
r = 4 cm
Circle area = 3.14 * (4cm)²
Circle area = 3.14* 16cm²
Circle area = 50.24cm²
Triangle area = (heigth*width)/2
heigth = 2.5 + 4 = 6.5cm
width = 3 + 3 = 6cm
triangle area = (6.5cm*6cm)/2
triangle area = 39cm²/2
triangle area = 19.5cm²
then:
the probability that a randonly select point whitin the circle falls in the shaded area is:
19.5/50.24 = 0.3881 (aprox)
0.3881*100 = 38.81%
Li cut a 6-inch piece of string into pieces that are each ½ of an inch long. How many pieces of string did she cut?
Answer: 12
Step-by-step explanation: 6 times 2 is 12 and she has a 6 inch string and each peace is 1/2 inch long so she would have 12 peaces of string.
Is 39,052 divisible by 3?
Answer:
39052 ends in 2, hence it is divisible by 2. But (3+9+0+5+2) = 19, which is not divisible by 3.
Answer:
Step-by-step explanation:
to check a number is divisible by 3. add all the numbers and check whether it is divisible by 3
=3+9+5+2
=19
so it is not divisible
Question: 8n - 3 - 5n > 9
Answer: Inequality Form:
n > 4
Interval Notation:
4, (infinite)
f(x) = 3x + 2 and g(x) = 4 – 5x
Answer:
-2x +6
Step-by-step explanation:
[tex]f(x)=3x+2,\:\\g(x)=4-5x\\\\f(x) +g(x) =\\3x+2+\left(4-5x\right)\\\\\mathrm{Remove\:parentheses}:\quad \left(a\right)=a\\=3x+2+4-5x\\\\\mathrm{Group\:like\:terms}\\=3x-5x+2+4\\\\\mathrm{Add\:similar\:elements:}\:3x-5x=-2x\\=-2x+2+4\\\\\mathrm{Add\:the\:numbers:}\:2+4=6\\=-2x+6[/tex]
I need help with this
Over a ten-year period, the average price of a gallon of milk increased from $1.13 per gallon to $1.63 per gallon. To the
nearest percent, how much did the price of a gallon of milk increase?
14%
B 31%
C) 44%
D 69%
Answer:
c
Step-by-step explanation:
what is a counterexample for if a shape has 4 sides its a rectangle
parallelogram
Step-by-step explanation:
it has 4 sides but is not a rectangle
Can someone please help me I have been trying for hours and I don’t get it.
solve absolute value equations:
|X+7|-|x-2|=x-3
Answer:
x=12
Hope this helped! :) If its right, please give me brainliest!
factorise: 3 a^3+4a-3
Answer:
Non of the REMAINDERS is ZERO and as such the expression is not factorable.
Step-by-step explanation:
Max goes to the gym every fourth day. Ellen’s exercise routine is to go every third day. Today is monday and both Max and Ellen are at the gym. What will the day of the week be the next time they are BOTH at the gym?
A. Sunday
B. Wednesday
C. Friday
D. Saturday
The day of the week will be Saturday the next time they are both at the gym.
What is Least Common Multiple(LCM)?The least common multiple is defined as the least positive integer that is dividable by both given numbers.
A group's Least Common Multiple (LCM) is the smallest number that is a multiple of all the numbers. For example, the LCM of 4 and 5 is 20; 20 is the smallest number that is both a multiple of 4 and a multiple of 5
To solve this problem, we need to find the least common multiple (LCM) of the two sequences of days, 3 and 4.
The LCM of 3 and 4 is 12, which means that after every 12 days, Max and Ellen will both be at the gym on the same day.
Starting from Monday, the next time Max and Ellen are at the gym together will be 12 days later, which is a Saturday.
Hence, the answer is an option (D) Saturday.
To learn more about the Least Common Multiple(LCM) here :
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Kyle's expenses are $1,850 each month. 1) How much money must Kyle earn each month to break even? A) $1,000 B) $1,675 C) $1,850 D) $2,000
circumference C=25 units.
area: A = ?
Now use the graphing calculator to find the area of a circle, given it has a circumference of 25 in. Enter the equations below into the calculator.
The answer is 50. I have the same question and it makes no sense. The r= and the d= are supposed to have answers, but I’m not sure how you get them
I answered the question but idk if I did it correctly *tap image to see full problem
Answer: 40
Step-by-step explanation:
66-26=40
Answer:
40 trees
Step-by-step explanation:
You started with 26 trees. At the end, you will have 66. It's not 26+66 it is 66-26=trees. Trees=40. So, the workers planted 40 trees.
PLEASE HELP ALGEBRA 2!!
Answer:
8- option 4
9- option 2
10-option 1
what is 3n + 12? im so confused
True or False: by using the additive inverse property -64 - (-17) can be rewritten as -64 + 17
Step-by-step explanation:
Additive inverse is when you have a positive number, for example, and it becomes a negative.
Example: 8
The additive inverse of 8 is -8.
So the answer is false.
-64+17 and -64-(-17) is an example of communative property.
Hope it helps!
Please help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer:
#6 is 17 days
Step-by-step explanation:
This is how I answered it
1) 2750 = 550 + 125x
2) subtract 550 from each side
2750-550=2200
so the left over equation is:
2200 = 125x
3) divide each side by 125 to get x by itself
2200÷125= 17.6
4) you are left with: x = 17 days
Compare the quantity in Column A with the quantity in Column B. Choose the best
answer.
Column A
The distance from
(-11, 2) to (5, 10)
Column B
The distance from
(0, -8) to (16,0)
O A. The quantity in Column A is greater.
O B. The quantity in Column B is greater.
O C. The two quantities are equal.
O D. The relationship cannot be determined from the information given.
Answer:
option :c is correct..okAnswer:
c
Step-by-step explanation: got it right prommispromise
Round 496.739386253 to the nearest whole number.
Answer:
467
Step-by-step explanation:
7 is greater than 5 so the six is rounded to a 7
Hope this helped please mark me brainiest
Answer:
497
Step-by-step explanation:
If x ≥ 5, we round up.
If x < 5, we round down.
Since 7 ≥ 5, we round 496.739386253 to 497.
what equation has x=5 as a soulution
Answer:
7x-15=20
Step-by-step explanation:
7x-15=20
7x=35
x=5