Two numbers, a and b, are each greater than zero, and the square root of a is equal to the cube root of b. For what value of x is a^(2x-1) equal to b ?

Answers

Answer 1

Answer:

x = 1/2

Step by step explanation:

Two numbers a and b are each greater than zero.

i.e a > 0 and b > 0

And;

[tex] \sqrt{a} \: = \: \sqrt[3]{b} [/tex]

Since the square root of a is equal to cube root of b then,

a = b = 1

[tex] {a}^{2x \: - \: 1} \: = \: b[/tex]

[tex] {1}^{2x \: - \: 1} = {1}^{0} [/tex]

2x - 1 = 0

x = 1/2

Answer 2

Two numbers are 'a' and 'b'.

And a > 0, b > 0

[tex]\sqrt{a}=\sqrt[3]{b}[/tex]

[tex]a^{\frac{1}{2} }=b^{\frac{1}{3}}[/tex]

[tex]a=(b)^{\frac{2}{3} }[/tex]

We have to find the value of [tex]x[/tex] if [tex]a^{2x-1}=b[/tex],

By substituting the value of [tex]a[/tex] in the given expression,

[tex](b^{\frac{2}{3}})^{2x-1}=b[/tex]

Now use the laws of exponents,

[tex]b^{\frac{2}{3}(2x-1)}=b[/tex] [Since, [tex](a^m)^n= a^{mn}[/tex]]

By comparing the exponents on both the sides,

[tex]\frac{2}{3}(2x-1)=1[/tex]

[tex]2(2x-1)=3[/tex]

[tex]4x-2=3[/tex]

[tex]4x=5[/tex]

[tex]x=\frac{5}{4}[/tex]

[tex]x=1.25[/tex]

Learn more,

https://brainly.com/question/219134


Related Questions

When Han makes chocolate milk, he mixes 2 cups of milk with 3 tablespoons of chocolate syrup. Here is a table that shows how to make batches of different sizes. What is the constant of proportionality for this relationship?

Answers

your answer would be 1.5

Answer:

The constant of the proportionality for this relationship is tablespoons and chocolate  and cups of syrup.

Step-by-step explanation:

can some one read what this says and plz give me the answer tw! - due in 3 min

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Answer:

she began to wonder If a fruits size is related to whether it floats or sinks

Step-by-step explanation:

this where the question begins

A researcher is interested in the mean mileage for all school buses in a school district. Forty buses are randomly selected from a computer printout that contains every bus in the district. For each bus they record the name of the school it is used for, mileage, and age. It is calculated that 32.5% of the 40 buses are over 15 years old. With 99% confidence they find that the mean mileage for all school buses in the school district is between 85,261 and 134,890 miles.What is the qualitative variable in this study

Answers

Using classification of variables, it is found that the qualitative variable in this study is the name of the school the bus is used for.

-----------------------------

Variables may be classified as quantitative or qualitative.

A variable is quantitative if it assumes numerical values, for example 1,2,3.  If it assumes "labels", for example good or bad, it is qualitative.

-----------------------------

In this question, the variables are:

School name, which is qualitative.Mileage, which is quantitative.Age, which is quantitative.

Thus, the qualitative variable is the school name.

A similar problem is given at https://brainly.com/question/15102143

Job A: $15.00 per hour (40 hours a week)​​Job B: $1,375 semi-monthly
​a. Which job pays more?
​b. How much more?

Answers

Answer:

Step-by-step explanation:

JOB A: 40*15=600 PER WEEK

600*4=2400 PER MONTH

JOB B; 1375*2=2750 PER MONTH

JOB A PAYS MORE 2750-2400=350.00

WITH 350.00 DOLLARS

Can someone help me (Geometry)

Answers

Answer:

∠DAB = 71°

Step-by-step explanation:

∠DAB = ∠DAC + ∠CAB

∠DAB = 35° + 36°

∠DAB = 71°

please help me, if you help then thanks!

Answers

Answer:

Student 1 and Student 3

Step-by-step explanation:

For student 1:

[tex] {x}^{2} = 64 \\ x = \sqrt{64} \\ x = {}^{ + } 8 \: \: and \: \: {}^{ - } 8[/tex]

For student 2:

[tex] {x}^{3} = 1 \\ x = \sqrt[3]{1} \\ x = {}^{ + } 1[/tex]

For student 3:

[tex] {x}^{2} = 9 \\ x = \sqrt{9} \\ x = {}^{ + } 3 \: \: and \: \: {}^{ - } 3[/tex]

For student 4:

[tex] {x}^{3} = 216 \\ x = \sqrt[3]{216} \\ x = {}^{ + } 6[/tex]

The price per share of a certain stock fell from 31.46 to close at 29.42 find the percent decrease

Answers

31.46 - 29.42 = 2.04 dollars
Now this being said all you have to do is put 2.04 over 31.46 and divide.

2.04
———- = 0.06484425
31.46

Move decimal point over to get the appropriate percentage:
6.48% decrease

express 15288 as a product of prime factors​

Answers

Answer:

The prime factors are: 2 x 2 x 2 x 3 x 7 x 7 x 13

Step-by-step explanation:

73. Find F when C = 30 degrees in the formula F=9/5c+32 degrees

Answers

Answer:

f = 86

Step-by-step explanation:

f = 9/5c + 32

~Substitute

f = 9/5(30) + 32

~Simplify

f = 54 + 32

f = 86

Best of Luck!

ill give u brainly if u get the correct answer

Answers

Answer:

use synthetic division method

Evaluate(9-3)/2 plz help

Answers

Answer:

3

Step-by-step explanation:

9 - 3 = 6

[tex]\frac{6}{2}[/tex]

2 goes into 6 three times therefore the answer is 3.

If this helped, brainliest would be appreciated :)

Answer:3

Step-by-step explanation:

Anybody please help me but your answer better be correct
Please help me as soon as possible

Answers

A (9.9)

B (13,8)

C ( 4,2)

hope that helps

5 hundreds x10 in standerd and unit form

Answers

Standard form: 5000
Unit form: 5 thousands.

5-hundreds = 5\times 100=500
\text{5-hundreds}\times 10=500\times 10=5000

Therefore, our given number in unit form would be 5 thousands.

Read more at Answer.Ya.Guru – https://answer.ya.guru/questions/1079860-unit-for-and-standard-form-of-5-hundreds-x-10.html

in the given figure , ab //cd then find the value of x​

Answers

Sum of interiors =exterior

[tex]\\ \sf\longmapsto x+60=110[/tex]

[tex]\\ \sf\longmapsto x=110-60[/tex]

[tex]\\ \sf\longmapsto x=50[/tex]

What is the domain of the function represented by the graph?
N
-2
all real numbers
-4 SX54
-3 sys-1
O y<0

Answers

Answer:

-4 i think

sorry if I'm wrong

Which graph best represents the equation y= -2/3x+4?

Answers

Answer:

The first one

Step-by-step explanation:

You have a negative slope, so it should be falling or going downwards. Your y-intercept is 4, so it should hit 4 on the y-axis. Hope this helped!

Answer:

The first graph

Step-by-step explanation:

The slope is -2/3

slope is rise over run

y intercept equals 4

In a group of 100 people, 94 like coffee and 93 like tea and each person likes at least one of the two drinks. Find the number of people who like both coffee and tea

Answers

Answer:

Step-by-step explanation:

I already have the answer for x but is this complementary or supplementary

Answers

Answer:

supplementary

Step-by-step explanation:

► 1-79 A new car purchased for $27.000 loses 15% of its value each year.

Answers


Are you finding the function?


Step 1:

a=$27,000. (Given)
Annual percent of decrease (r): 15%. (Given)

Step 2:
(Assuming m is the multiplier)

M=1-r

1-15/100

M=.85%

Step 3:
The function representing this

F(t): 27,000•(.85)^t

divide 200 between Sita and Geeta in the ratio 2:3​

Answers

Answer: 80:120

Step-by-step explanation:

hi <3

2 + 3 = 5

200/5 = 40

2 x 40 = 80

3 x 40 = 120

sita gets 80 and geeta gets 120

hope this helps :)

Write the following sentence using mathematical symbols.
Twice the difference of x and 4 is greater than the reciprocal of 11.
The answer is

Answers

x 8 + 44 11 twice number math 11

Which number is 30 times larger than the value below 3 x 10

Answers

Answer:

900

Step-by-step explanation:

Value of (3 × 10) = 30

30 times the value of (3 × 10)

= 30 × (3 × 10)

= 30 × 30

= 900

Which graph shows a function whose inverse is also a function?

Answers

Step-by-step explanation:

Using the concept of inverse function, it is found that the first graph shows a function whose inverse is also a function.

----------------------------------------

A function f(x) will only have an inverse function if: f(a) = f(b) \leftrightarrow a = bf(a)=f(b)↔a=b , that is, a value of y will have only one respective value of x.

----------------------------------------

In the first graph, for each value of y, there is only one value of x, so the inverse is also a function, and this is the correct option.

In the second graph, for example, y = 0 when x = -1 and when x = 1, so the inverse is not a function.

In the third graph, for example, y = -3 when x = 0 and x = 2, so the inverse is not a function.

In the fourth graph, for example, y = 1 for two values of x, so the inverse is not a function.

4y + 2/4 = 8
please help me​

Answers

Answer:

y should equal 1 7/8 (or 15/8).

Step-by-step explanation:

sssssssssssssssssssssssssssssssssssssssssssssssssssssssss

Maryanne is making a bracelet at camp using
beads that are 1.64 cm long. What will be
the length of her bracelet if she uses 19
beads?

Answers

Answer:

31.16 cm

Step-by-step explanation:

19 x 1.64 = 31.16 cm

Just multiply, since they have u the length of one bead, you will be able to find the length of the entire bracelet

50% of 320 is equal to 80% of what number?

Answers

Answer:

50% of 320 is equal to 80% of 200

Step-by-step explanation:

[tex]\sf{50\% \times 320}[/tex]

[tex]\sf{ = \frac{50}{100} \times 320 }[/tex]

[tex]\sf{ = \frac{16000}{100} }[/tex]

[tex] = \sf{160}[/tex]

-

[tex]\sf{160 \div 80\%}[/tex]

[tex]\sf{ = 160 \div \frac{80}{100} }[/tex]

[tex]\sf{ =\cancel{ 160} \times \frac{100}{\cancel{80}} }[/tex]

[tex]\sf{ = 2 \times 100}[/tex]

[tex] = \boxed{\sf{\underline{\purple{200}}}}[/tex]

Answer:

50% of 320 is equal to 80% of 200.

Step-by-step explanation:

Given,

50% of 320 is equal to 80% of a number (let it be x)

Now,

50% of 320

= 50% × 320

= 50/100 × 320

= 50/10 × 32

= 5 × 32

= 160

Also now,

160 is equal to 80% of x.

80% of x = 160

80% × x = 160

80/100 × x = 160

8/10 × x = 160

4/5 × x = 160

4/5x = 160

x = 160 ÷ 4/5

x = 160 × 5/4

x = 40 × 5

x = 200

usa a straightedge and a compass to construct a segment of length ab+cd ILL GIVE BRAINLIEST

Answers

Step-by-step explanation:

To create a perpendicular bisector, you need a compass, a straightedge, and a pencil. As well as the line segment AB drew down.

1> You start by opening the compass and stretching it to a width greater than half the length of AB.

2> Then you simply place one point of the compass on the line segments A. From here, you move the compass and draw arcs above and below the line AB.

3> Without moving the compass measure, remove it from point A and place it onto point B. You basically repeat step 2 by drawing arcs above and below the line again.

4> If you've done it right, the arcs should be in the middle, X and Y, and using a straightedge/ruler you draw a line that goes vertically through where they connect.

and that should be your perpendicular bisector using segment AB.

The mean life time of sample of 100 fluorescent light bulbs produced by a company is computed to be 1570 hours with a standard deviation of 120 hours. The company claims that the average life of the bulbs produced by it is 1600 hours. Using the level of significance of 0.05, is the claim acceptable? ​

Answers

Answer:

The mean lifetime of a sample of 100 fluorescent light bulbs produced by a company is

The mean lifetime of a sample of 100 fluorescent light bulbs produced by a company is computed to be 1570 hours with a standard deviation of 120 hours.

Step-by-step explanation:

https://www.cs.bu.edu/faculty/snyder/cs237/Handouts%20and%20Web%20Documents/Handouts/PracticeProblemsHypothesisTesting.pdf

Have a bless day

if 12z5 is a multiple of 3, where z is a digit. what might be the values of z?​

Answers

Answer:

Playing with Numbers

∵ 31 z5 is divisible by 3. ∴ ( 9 + z) must be divisible by 3. since, z is a digit. ∴ Possible values of z are 0, 3, 6 or 9.

4/11 turned into a decimal​

Answers

Answer:

0.364

Solution:

Showing the work

We know that

411

is the same as

4÷11

Then using

Long Division for 4 divided by 11

and rounding to a Max of 3 Decimal Places gives us

=0.364

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