Answers
Answer:
A) 6x
Step-by-step explanation:
4x + 3x = 7x
7x - 1x (or just x) = 6x
hope this helped :)
Related Questions
if
[tex]a = \frac{2x + \sqrt{x} }{x} [/tex]
and
[tex]b = \frac{1 - 2 \sqrt{x} }{ \sqrt{x} } [/tex]
without sing a calculator, show that
[tex](a + b) {}^{2} = \frac{4}{x} [/tex]
Answers
Answer:
Step-by-step explanation:
Rationalize the denominator of b. So, multiply the numerator and denominator by [tex]\sqrt{x}[/tex]
[tex]b = \frac{(1-2\sqrt{x}) *\sqrt{x}}{\sqrt{x}*\sqrt{x} }=\frac{1*\sqrt{x} -2\sqrt{x} *\sqrt{x} }{\sqrt{x} *\sqrt{x} }\\\\=\frac{\sqrt{x} -2x}{x}\\[/tex]
Now, find a +b
[tex]a +b = \frac{2x+\sqrt{x} }{x}+\frac{\sqrt{x} -2x}{x}\\\\=\frac{2x+\sqrt{x} +\sqrt{x} -2x}{x}[/tex]
Combine like terms
[tex]= \frac{2x-2x+\sqrt{x} +\sqrt{x} }{x}\\\\=\frac{2\sqrt{x} }{x}[/tex]
Now find (a + b)²
(a +b)² = [tex](\frac{2\sqrt{x} }{x})^{2}[/tex]
[tex]= \frac{2^{2}*(\sqrt{x} )^{2}}{x^{2}}\\\\= \frac{4* x}{x^{2}}\\\\= \frac{4}{x}[/tex]
Hint: [tex]\sqrt{x} *\sqrt{x} =\sqrt{x*x}=x[/tex]
FREE BRAINLIST FOR CORRECT ANSWERS
Answers
Answer:
A
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Can I get brainly?
Is a triangle with side lengths of 5, 10, and 15 a right triangle? Explain
Answers
Answer:
No, it is not a right triangle.
Step-by-step explanation:
Using the property of the right triangle, square root (5^2 + 10^2) = 5root(5), and it is not equal to 15, so it is not a right triangle.
c=15, a=5, b=10
15^2=5^2+10^2
225=25+100
225=125
225 is not equal to 125 therefore, this triangle is not a right triangle.
Terry puts 14 comic books on each shelf of a bookcase. The expression 14s can be used to find the number of books on the shelves. Use the expression to find the total number of comic books on 7 shelves.
Answers
Answer:
dump-the-books-out
Step-by-step explanation:
i-think
The volume of a sphere is 113.1 cm3; find the diameter of the sphere.
Answers
Answer:
del
Step-by-step explanation:
d
Please help me with this question!
Answers
Answer:
Your Answer Is 10
Step-by-step explanation:
1st Factor the Numerator and Denominator then cancel the common factor.
Hope It Help You If Yes then Please make me the Brainiest.
Thank You
Parshv
5. Each pair of polygons below are similar. Show your work! Solve for x:
Answers
Answer:
x = 10
Step-by-step explanation:
30/35 = (6x-6)/63
210x - 210 = 1890
210x = 2100
x = 10
A sweater is 15% off. The regular price is $24. What is the price after the discount is taken off?
Answers
Answer:
$20.40 after the discount
Step-by-step explanation:
To find 15% of 24, you multiply 24 and 0.15, which gets you 3.6
Then, to find the price after the discount, you subtract the 15% (the 3.6). So, 24 - 3.6 = $20.40
please help me, I don't understand this question
Answers
Answer:
[tex]f(y) = \frac{9y^4+26y^2+9}{y^4}[/tex]
Step-by-step explanation:
Work is attached from a derivative calculator. If you hover over the steps it tells you exactly what its doing(on the website). Feel free to ask if you dont understand any of the individual steps it does.
-6x^3y+9x^2y^2-12xy^3
Answers
I factored out 3xy from the expression.
Which expressions are equivalent to 2(4x+2y)
A: 4(2x+y)
B: 8x+4y
C: 2x(4+2y)
D: 8x+2y
Answers
Answer:
A,B
Step-by-step explanation:
4(2x+y)
4•2x + 4•y
8x+4y
2(4x+2y)
2•4x + 2•2y
8x+4y
find the missing angle. PLEASE HELP!! I WILL GIVE 100 POINTS!!
OPTIONS:
50
60
140
70
Answers
Answer:
50°
Step-by-step explanation:
90°-40°=50°
The square on the angle means 90°.
Hope this helps! :D
what is a 90° plus 180° plus 15°
Answers
Answer:
285°
Step-by-step explanation:
90 + 180 = 270
270 + 15 = 285
Answer:
285°
Step-by-step explanation:
Lets solve your problem :)
90° + 180° = 270°
270° + 15° = 285°
Mark my answer brainliest to tell you the 4 algebra calulators :)
please help will ill brainiest if correct
Answers
Answer:
The answer would be -4.
Step-by-step explanation:
yeah I didn't do too good on that unit with the integers kind of thing so, yeah....
how I did this question: imagine if you owe someone $9 but you only have $5 so you give them those $5 so now you only owe them for dollars.
Here is a scatter plot:
у
5
4
3
.
2
1
08
2
3
5
The graph of what linear equation is a good fit for this data? ¿La gráfica de que
ecuación lineal se ajusta bien a estos datos?
O Y - (1/3)x+ 2
Oy - (1/3)x 6
Oy - (1/3) + 6
Oy(1/3)x+ 2
Answers
What is the volume of a cylinder with a height of 7.1 ft and a base with a diameter of 12.8 ft, to the nearest tenth of a cubic foot?
Answers
Answer:
V=π(d
2)2h=π·(12.8
2)2·7.1≈913.62541ft³ Step-by-step explanation: because i said so
Help me out guys! almost to my goal.
Answers
Answer:
y = 17x - 5
Step-by-step explanation:
Which description matches the function represented by this graph?
A. exponential growth
B. linear growth
C. linear decay
D. exponential decay
Answers
Answer:
your answer will be option D. exponential decay
Step-by-step explanation:
have a nice day/ night bye ^_^
HELP ASAP!!!
Profit is the difference between revenue and cost. The revenue, in dollars, of a company that manufactures cell phones, can be modeled by the polynomial 2x2 + 55x + 10. The cost, in dollars, of producing the cell phones can be modeled by 2x2 – 15x – 40. The variable x represents the number of cell phones sold.
What expression represents the profit, and what is the profit if 240 cell phones are sold?
40x – 30; $2,400
40x – 30; $9,570
70x + 50; $16, 850
70x + 50; $28,800
Answers
Answer:
Given that the equation of the revenue is R=2x2+55x+10 and the equation of the cost is C=2x2 – 15x – 40, you will get the profit by subtracting the revenue from the cost: R-C=P. Therefore, P=(2x2+55x+10)-(2x2 – 15x – 40). You will get P=70x+50 where x is is the number of cellphones sold. If 240 cellphones are sold, then the profit is 16850 dollars.
Step-by-step explanation:
The profit expression is 70x + 50 and the profit if 240 cell phones are sold is $16,850
How to calculate profitRevenue, R = 2x² + 55x + 10Cost, C = 2x² – 15x – 40where,
x = number of cell phones sold.
Profit = Revenue - cost
= (2x² + 55x + 10) - (2x² – 15x – 40)
= 2x² + 55x + 10 - 2x² + 15x + 40
Profit = 70x + 50
If x = 240Profit = 70x + 50
= 70(240) + 50
= 16,800 + 50
= $16,850
Learn more about profit:
https://brainly.com/question/23103804
Oliver is trying to keep up with the current amount of money in his bank account he uses positive numbers to show his the positive and negative numbers to show his withdraw which expression best represents Oliver making 8 withdraws $25
Answers
Answer: c
Step-by-step explanation:
The expression that best represents Oliver making 8 withdraws $25 should be considered as 8(-25).
Calculation of the expression:Since the positive and negative numbers to show his withdraw which expression best represents Oliver making 8 withdraws $25
So here the withdrawn amount should be $25
And, the earning is $8
So here the expression be like 8(-25).
Learn more about expression here: https://brainly.com/question/24422266
identify the vertex of the function graphed below.
A. (3,1)
B. (0,-2)
C. (1,1)
D. (2,2)
Answers
Answer:
D. (2,2)
Step-by-step explanation:
I did the test and I got it correct. :DD
Which of the following angles are congruent to 5? Select all that apply.
Answers
Step-by-step explanation:
in my opinion, maybe it's ∠1 and ∠4
∠1 and ∠4 are congruent to ∠5 by corresponding and alternate angle theorem.
What is a transversal?We know when a transversal intersects two parallel lines at two distinct points,
Two pairs of interior and alternate angles are formed such that the measure of interior angles are same and the measure of alternate angles is also the same.
Given, line l and line m are intersected by a transversal line t.
Angles congruent to ∠5 is ∠4 by alternate interior angle theorem.
∠1 is also congruent to ∠5 by the corresponding angle theorem.
learn more about transversal here :
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PLEASE SOMEONE HELP ME! I NEED THE ANSWER ASP
The water spray from a spinning lawn sprinkler covers a circular area of 196π square feet. If Ray is standing 30 feet away from the sprinkler as it is spraying water, which of the following statements is true?
A. Ray will get wet because the sprinkler sprays an area with a radius of 196 feet and 30<196.
B Ray will stay dry because the sprinkler sprays an area with a radius of 14 feet and 14<30.
C. Ray will stay dry because the sprinkler sprays an area with a radius of 28 feet and 28<30.
D. Ray will get wet because the sprinkler sprays an area with a radius of 98 feet and 30<98.
Answers
Answer: B
Step-by-step explanation:
196π=πr^2
196=r^2
14=r
14<30
Riley counted the number of balls on one layer of a box, 34. The box has 8 layers. How many balls can the box hold?
Answers
Answer:
8 times 34= 272
Step-by-step explanation:
Tania earns $16 per hour at the Glendale Florist. She regularly works 40 hours per week.
She is paid time-and-a-half for each hour of overtime work. Last week she worked 43
hours.
7) How much was she paid for her regular hours?
a $600
b. S520
C. S640
Answers
Answer:
$640 is how much she will make in in regular hours.
Step-by-step explanation:
Create an equation from the word problem and solve.
Option A is correct, $640 is the pay for her regular hours.
What is Equation?
Two or more expressions with an Equal sign is called as Equation.
Given that Tania earns $16 per hour at the Glendale Florist.
She regularly works 40 hours per week.
She is paid time-and-a-half for each hour of overtime work
Last week she worked 43 hours.
We need to find the payment she received for her regular hours.
16h is the expression to find the pay for h hours.
As she work for 40 hours.
Now plug in h as 40.
16×40
$640
Hence, option A is correct, $640 is the pay for her regular hours.
To learn more on Equation:
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ILL GIVE 50 POINTS AND BRAINLIEST!!! ;)
Answers
Answer:
X=5
Step-by-step explanation:
Answer:
60°
Step-by-step explanation:
<EAD is 180° as a whole
All that is needed is to subtract 100° and 20° from 180°
now you are left with x° which is 60° left over from the 180°
Help me pleaseeeee thank youuu
Answers
Answer:
B, 3/10
Step-by-step explanation:
Going by SOHCAHTOA, we see that tangent is actually Opposite / Hypotenuse.
The opposite side of angle A here is 12, while the Hypotenuse is 40. Our answer is 12/40 which is 3/10.
What is the value of the expression below when z=6z=6?
2z2 -8z-2
Answers
Help For A Brainliest Please !
Answers
Answer:
ab = 6
a+b = 5
Step-by-step explanation:
The volume of a box is 400 in.^3in. 3 . The height is 5 in. What is the area of the base of the box?
Answers
Answer:
The area of the base is 80 in². 80 square inches.
Step-by-step explanation: V = b×h
Divide the volume by the height to find the area of the base.
400 ÷ 5 = 80