Answers
Answer:
the last one
Step-by-step explanation:
the input cannot be negative
Related Questions
x - 6
———
x + 8
=
9
—
3
Step 1 of 2: State any restriction(s) on the variable, if they exist.
need help asap!!
yes those are fractions ^^
Answers
Answer:
dont know....mmm sorry
8/9 ÷ 4/9 = ????????
Answers
Answer:
2
Step-by-step explanation:
Can someone please help and explain I will mark brainliest
Answers
Answer:
I really don't know I am sorry.
Step-by-step explanation:
Answer:
i = integers greater than n
n < i
n = smallest integer
a = 2nd largest integer
b = 3rd largest integer
c = largest integer
d = sum of all the integers
n + a + b + c = 2174
Step-by-step explanation:
POINTS PLZ HELP!!!!!
Drag the terms to the correct locations in the expression. Not all terms will be used.
What is the complete factorization of 2x2 − 11x − 21?
x
2x
3x
1
3
7
they can be used more than once.
place them here
(__+__)(__-__)
Answers
Answer:
(2x+3)(x-7)
Step-by-step explanation:
2x^2+3x-14x-21
2x(x-7)+3(x-7)
The factors of the expression are (2x+3)(x-7).
What is factorization?Factorization is the breaking or decomposition of an entity (a number, a matrix, or a polynomial) into a product of another entity, or factors, which when multiplied together give the original number. Factorize an expression involves take out the greatest common factor (GCF) of all the terms.
For the given situation,
The expression is [tex]2x^{2} -11x-21[/tex]
The complete factorization of the expression is as,
⇒ [tex]2x^{2} -11x-21=0[/tex]
⇒ [tex]2x^{2} -14x+3x-21=0[/tex]
⇒ [tex]2x(x-7)+3(x-7)=0[/tex]
⇒ [tex](2x+3)(x-7)=0[/tex]
The value of x can be found as
⇒ [tex]2x+3 = 0[/tex] or [tex]x-7 = 0[/tex]
⇒ [tex]x=\frac{-3}{2}[/tex] or [tex]x=7[/tex]
Then -3/2 and 7 are the zeroes of the expression.
Hence we can conclude that the complete factorization of the expression are (2x+3)(x-7).
Learn more about factorization here
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HELP ASAP
Plzzzzzzz
Answers
Answer:
106°
Step-by-step explanation:
180-74=106°
Answer:
106
Step-by-step explanation:
supplementary means 2 angles = 180
so..
180-74=106
There are some red counters and some yellow counters in a bag in the ratio 1 : 5
There are 20 yellow counters in the bag.
Janet puts some more red counters into the bag.
The ratio of the number of red counters to the number of yellow counters is now 1 : 2
How many red counters does Janet put into the bag?
Answers
Answer:
Janet put 6 red counters into the bag
Step-by-step explanation:
There are 5 yellow counters for every 1 red counter. If there are 20 yellow counters in the bag then there are 4 red counters. (20/5). If the ratio becomes 1:2 this means there are 2 yellow counters for every 1 red counter. There are 20 yellow counters so there must be 10 red counters in the bag. (20/2). 10 - 4 = 6. Janet put 6 red counters into the bag. (Brainliest would be appreciated!)
I need 2 more!! So can you help
Answers
Answer:
✔️2a + 6 + 7a
✔️2a + 7a + 6
✔️9a + 6
Step-by-step explanation:
Given:
2(a + 3) + 7a
Required:
3 equations equivalent to the given expression
Solution:
2(a + 3) + 7a = 2a + 6 + 7a = 2a + 7a + 6
= 9a + 6
From the above, we can pick 3 expressions that are equivalent to 2(a + 3) + 7a. They are:
✔️2a + 6 + 7a
✔️2a + 7a + 6
✔️9a + 6
9 - 3x +7y -Зу +3
Thx!!!
Answers
You just have to simplify the equation
A 10.0 mL sample of copper has a mass of 89.6 g. What is the density of copper?
Answers
Answer:
8.96 g/cm3
Step-by-step explanation:
89.6 divided by 10 is 8.96
William bought 5 rulers for $7.50. If r represents the cost of one ruler, which equation represents this situation?
Group of answer choices
5r = 7.50
r/5 = 7.50
r + 5 = 7.50
7.50r = 5
Answers
Answer:
5r = 7.50
Step-by-step explanation:
As, the cost of 1 ruler = r
So, r times 5 ruler will give u the cost of 5 rulers, which is 7.50
So, 5r = 7.50
Please help me, I think this is easy but I just don't get it...
Answers
Answer:
the last one?
Step-by-step explanation:
i dont know, but that one seems like it would
Answer:
answer is A if only one can be chosen. if more than one can be, b might be an answer as well, but not c and d.
Step-by-step explanation:
think of a 3 4 5 triangle for answer a.
just remembered this method, do Pythagorean theorem for each answer. that will tell you which equals a triangle. answer a foe sure is one cmbecuase of a 3 4 5 triangle.
A field is a rectangle with a perimeter of 1240 feet. The length is 400 feet more than the width. Find the width and length of the rectangular field.
The width
Answers
Answer: The length is 510 and the width is 110.
Step-by-step explanation:
To find the area of a rectangle, you will have to add the 2 times the length plus 2 times the width because a rectangle have 4 sides. Two widths and two lengths.
You can now use the formula P= 2l + 2w
were P is the perimeter , l is the length, and w is the width.
the length is 400 more than the width, so we can represent that by the equation, l = w + 400
And now we know that the width is w.
So now we will input the perimeter, length, and into the formula to solve for w.
1240 = 2(w + 400) + 2w
1240 = 2w + 800 + 2w
1240 = 4w + 800
-800 -800
440 = 4w
w = 110
L= 110 + 400
L = 510
Check :
1240 = 2(510) + 2(110)
1240 = 1020 + 220
1240 = 1240
an eight foot ladder leans against a building. if the ladder makes an angle of 60° with the ground, how far up the wall does the ladder reach?
Answers
Answer:
The ladder reaches (4)(√3) ft up the wall (6.93 ft)
Step-by-step explanation:
Think of a triangle with a 60 degree angle in the lower left corner. The lower right corner is a right triangle, and 8 ft is the length of the hypotenuse. The other angle is 30 degrees.
We know the angle 60 degrees, plus the length of the hypotenuse, but need the length of the vertical side opposite the 60 degree angle. Use the sine function here because it involves these knowns:
opposite side
sin 60 degrees = ------------------------ = x/(8 ft) = (√3)/2
Cross-multiplying, we get:
2x = (8 ft)(√3), or through reduction, x = (4)(√3)
The ladder reaches (4)(√3) ft up the wall (6.93 ft)
With the ground, [tex]6.92 ft[/tex] the wall does the ladder reach.
What is right angled triangle?A right-angled triangle is a triangle, that has one of its interior angles equal to 90 degrees or any one angle is a right angle. Therefore, this triangle is also called the right triangle or 90-degree triangle.
According to the question
An eight foot ladder leans against a building. if the ladder makes an angle of 60° with the ground.
From the right angle triangle,
[tex]sin 60^{0} =\frac{h}{8}[/tex]
[tex]\frac{\sqrt{3} }{2}[/tex] = [tex]\frac{h}{8}[/tex]
[tex]8\sqrt{3} =2h[/tex]
[tex]h = 4\sqrt{3}[/tex]
[tex]h = 6.92 ft[/tex]
Hence, With the ground, [tex]6.92 ft[/tex] the wall does the ladder reach.
Find out more information about right angle triangle here
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sum of two numbers is 35 and the difference is 15
Answers
Answer
IM not too sure
Step-by-step explanation:
Not too sure sorry kid
Answer:
25 and 10 are the numbers
Step-by-step explanation:
can somebody help me with this?
Answers
Answer:
x=11
Step-by-step explanation:
Since this is a 90º angle, 46º+(4x)º has to equal 90º, and you can make and solve an equation for this:
46+4x=90
4x=44
x=11
Check:
46+4x=90
46+4(11)=90
46+44=90
90=90
my father bought a robot for 670 2.50 and a toy car for 300 19.25 how much change did he get for his 1000.00
A.7.25 B.15.75cm C.27.75cm D.10.25
Answers
Answer:
Step-by-step explanation:
If it is supposed to be 672.50 and 319.25 then you can just go 1000 minus 672.50 which is 327.50 and then subtract 319.25 to get 8.25. But your answers show cm and none show the right answer. So, if it's rounding then choose A.
find the value of x
Answers
Answer:
the us 113, hope this helps you out
the EXACT value of 2÷(0.01)2 is
Answers
The EXACT value of 2÷(0.01)2 is 100.
The question asks that we divide 2 by (0.01)2. Division is a basic mathematical operation. The expression in the question can be rewritten as [tex]\frac{2}{(0.01)2}[/tex].
The first step to take in order to determine the answer is to simplify the denominator. Bracket means to multiply. So, 0.01 would be multiplied by 2. 0.01 x 2 = 0.02. Now that the denominator has been simplified, divide the numerator by the denominator.
2 / 0.02 = 100
A similar question was answered here: https://brainly.com/question/22357901
The EXACT value of 2÷(0.01)2 is 100.
The question asks that we divide 2 by (0.01)2.
Division is a basic mathematical operation.
The expression in the question can be rewritten as : 2/ (0.01)2
now, we get,
The first step to take in order to determine the answer is to simplify the denominator.
Bracket means to multiply.
So, 0.01 would be multiplied by 2.
i.e. 0.01 x 2 = 0.02.
Now that the denominator has been simplified, divide the numerator by the denominator.
we get,
2 / 0.02 = 100
Learn more about the Division here:
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Simplify 7-(3x+5y)+6(2x-3y)+8y
Answers
Answer:
Step-by-step explanation:
First get rid of the parentheses. Distribute the - sign and the +6 to each one.
[tex]7-3x-5y+12x-18y+8y\\7+9x-5y-18y+8y\\7+9x-15y[/tex]
A curve has equation y = f(x). (a) Write an expression for the slope of the secant line through the points P(2, f(2)) and Q(x, f(x)). x − 2 f(x) − f(2) f(2) − 2 f(x) − x f(x) − x f(2) − 2 f(x) − f(2) x − 2 (b) Write an expression for the slope of the tangent line at P. lim x→0 f(x) − f(2) x − 2 lim x→2 x − 2 f(x) − f(2) lim x→2 f(x) − f(2) x − 2 lim x→0 f(x) − x f(2) − 2
Answers
2x²+2 (2x) +5=0
solve indices
Answers
Step-by-step explanation:
2x²+4x+5=0
.....
solve it by using the factorisation method or completing the square method
don't mind the hand writing
am I correct btw
Look at pic plz help
Answers
Answer:
tree C was planted first
Step-by-step explanation:
Since Tree c was 10 inches tall when it was first grown and Tree A was 5 at first and Tree B was 3 inches tall. 10>5 10>3
How many milliliters should she measure to equal .62liters?
Answers
Answer:
620 milliliters
Step-by-step explanation:
All you need to do is multiply the volume value by 1,000
.62 x 1,000
620
Hope this helped!
Have a supercalifragilsticexpialidocious!
Your cellphone plan is by the minute. Each minute of use costs $0.10. Create a relation that represents the amount spent, A, per minute, m, of call time.
Answers
Answer:
A = 0.10m
Step-by-step explanation:
A = total amount spent
0.10 = cost per minute
m = how many minutes
Please help me!!!!!!!!!!
Answers
The perimeter of a rectangular wall divider is 100 feet. Its height is 15 feet. What is its width?
A. 15 feet
B. 35 feet
C. 85 feet
D. 100 feet
Answers
Answer: I think it's C.
Step-by-step explanation:
Answer:
Step-by-step explanación: La temperatura al interior de un congelador es de 20 °C y, luego de ... Por unidad su costo es $ 85 y el precio de venta es de $ 100. ... litros se pueden llenar 1 latas de bebida, si cada una contiene con 15 _ 2 0,35 litros? ... a los pies se demora 0,015 segundos,
Does the point (7, 4) satisfy the equation y = x − 3?
Answers
Answer:
Yes.
Step-by-step explanation:
If we wrote the equation down
7=4-(-3)
Then, we do keep, change, change
7 = 4+3
Y = 7
The equation is true, so that means the points are.
Write a ratio, in simplest form, and a percent for the shaded area. (3x4)
3/10, 27%
1/2, 50%
1/3, 33.33%
3/10, 30%
Answers
SPEED, DISTANCE AND TIME
please please !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! emergency will give thanks
1) A cyclist travels a distance of 90 miles in 5 hours. What
was her average speed?
2) How far along a motorway would you travel if you drove at
70 mph for 4 hours?
3) I drive to Bude in Cornwall from Sheffield in about 6
hours. The distance from Sheffield to Bude is 315 miles.
What is my average speed?
4) The distance from Leeds to London is 210 miles. The train
travels at an average speed of 90 mph. If I catch the 9.30 am
train in London, at what time should I expect to arrive in
Leeds?
5) How long will an athlete take to run 2000 m at an average
speed of 4 metres per second?
6) The distance between Sheffield and Land’s End is 420
miles.
a) What is the average speed of a journey from Sheffield to
Land’s End that takes 8 hours 45 minutes?
b) If Sam covered the distance at an average speed of 63
mph, how long would it take him?
Answers
Answer:
1 --- The cyclist's average speed was 18 miles per hour.
2 --- I would travel 280 miles far.
3 --- Your average speed was 52.5 miles per hour.
4 --- You should expect to arrive in Leeds at 11:50 AM.
5 --- The athlete will run 2000 m in 8 minutes and 20 seconds.
6A --- The average speed of the journey is 48 miles per hour.
6B --- It will take him 6 hours and 40 minutes.
Step-by-step explanation:
1) 90 / 5 = 18
2) 70 x 4 = 280
3) 315 / 6 = 52.5
4) 210 / 90 = 2.3333
0.333 = 0:20
9:30 + 2:20 = 11:50
5) 2000 / 4 = 500
500 / 60 = 8.3333
0.3333 = 0:20
8.3333 = 8:20
6A) 0:45 = 0.75
420 / 8.75 = 48
6B) 420 / 63 = 6.666
6.6666 = 6:40
2. ABCD is a square and P, Q are the midpoints of BC,CD respectively. If AP = a
and AQ = b. find in terms of a and b the directed line segments (i) AB (ii) AD
(iii) BD and (iv) AC.
Answers
Answer:
The answer is below
Step-by-step explanation:
A square is a quadrilateral (four sides and angles). All the sides and angles of a square are equal. Each angle of a square is 90° and the diagonals are equal.
In square ABCD:
AB = BC = CD = AC (all the sides of a square are equal)
Given that P is the midpoint of BC and Q is the midpoint of CD. AP = a and AQ = b.
a) Triangle APB is a right angled triangle:
BC = AB (all sides of a triangle are equal)
PB = 1/2 (BC) = 1/2(AB) = 0.5AB
Using Pythagoras theorem:
AB² + PB² = AP²
substituting:
AB² + (0.5AB)² = a²
AB² + 0.25AB² = a²
1.25AB² = a²
AB² = 0.8a²
AB = a√0.8
b) Triangle AQD is a right angled triangle:
AD = DC (all sides of a triangle are equal)
DQ = 1/2 (DC) = 1/2(AD) = 0.5AD
Using Pythagoras theorem:
AD² + DQ² = AQ²
substituting:
AD² + (0.5AD)² = b²
AD² + 0.25AD² = b²
1.25AD² = b²
AD² = 0.8b²
AD = b√0.8
c) In right triangle ADB, Using Pythagoras theorem:
AB² + AD² = BD²
But AB = AD
Substituting:
0.8a² + 0.8b² = BD²
BD = √(0.8a² + 0.8b²)
But AD = AB, hence 0.8a² = 0.8b²
BD = √(1.6a²)
BD = a√1.6
D) AC = AD (diagonals of a square are equal)
AC = √(0.8a² + 0.8b²)
AC = √(1.6b²) = b√1.6