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3 years ago

Log3(2x-1)=3 help me out:(

Mathematics

1 answer:

aleksley [76]3 years ago

5 0

Answer:

x = 2.

Step-by-step explanation:

(Brainliest?)

So log3(2x-1)+log3(x+7)=3 = log3(3^3) So (2x- 1)(x+7) = 27..... 2x^2+13x - 34 =0 (2x+17)(x - 2) = 0 ..so x = 2 or - 17/2. The solution x = - 17/2 is rejected since we cannot have log 3(2*- 17/2 - 1),a negative number. So the answer is x = 2.

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For the given central angle, determine the distance traveled along the unit circle from the point (1, 0).

viva [34]

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Answer:

b. 6.28 units

Step-by-step explanation:

The travel through 360° takes you around the full circumference of the circle. That circumference is ...

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Angles are generally considered to be positive in the counterclockwise direction, so the distance traveled is 6.28 units counterclockwise. Answer choice (a) has the correct number of units, but the direction is incorrect.

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3 years ago

How can you subtract mixed numbers when the fractions in the first mixed number is less than the fraction in the second mixed nu

VARVARA [1.3K]

Answer:

To subtract mixed numbers, subtract the whole number parts of the mixed numbers and then subtract the fraction parts in the mixed numbers. Finally, combine the whole number answer and the fraction answer to express the answer as a mixed number. Subtract. Simplify the answer and write as a mixed number.

Step-by-step explanation:

5 0

3 years ago

5 2/3 divided by 2 im terrible at fractions

Degger [83]

You can make the mixed number 5 2/3 an improper fraction, which is the number in the numerator is larger than the number in the denominator.
Multiply, Add, and Keep the denominator are the steps you need to take.
Multiply the denominator by the whole number and then add the number in the numerator, while keeping the denominator. 5*3+2=17>>> 17/3 is the improper fraction.
17/3 ÷ 2 is the resulting equation.
When you divide fractions, you have to multiply by the reciprocal. 2/1 is the whole number 2, but in fraction form. The reciprocal is 1/2 because your just flipping the numerator and the denominator.
17/3 * 1/2 is the new equation.
When you multiply fractions, you multiply straight across.
17/3 * 1/2 = 17/6 or 2 5/6 is your answer.

8 0

3 years ago

Is x=-2 a solution for the equation below?

Misha Larkins [42]

Answer:

Step-by-step explanation:

-7+x^2-3x = 9+x-10

-7+(-2)^2-3*(-2) 9+(-2)-10

-7+4+6 9-12

3 > -3

if we substitute -2 to x, answer is not equal

3 0

3 years ago

Read 2 more answers

Please Answer The Ones That Are Circled. (DON'T PUT DECIMALS FOR THE DIVISION PUT REMAINDER)if u can't see any tell me.

Alecsey [184]

Lesson 2.7:
1) / divide 195 by 18 to get 10.833.
/ to get the whole number, round up to get '11'.
11 cartons

Lesson 2.8:
3) $588$ ÷ $84$ = 7
5) 6,681 ÷ 53 = 126 with a remainder of 3

Lesson 2.9:
1) / let 'x' equal the inches of snow that reidville gets
/ '12x' equal the inches of snow that greenboro gets
/ you should set up the problem like: $x + 12x = 65$
/ add 'x + 12x' to get '13x'.
/ divide both sides by '13'.
/ 5 goes into 13 to get 65. simplify the fraction to '5'.
/ x = 5
Reidville gets 5 inches of snow

2) / let 'x' equal the miles ansley ran in one month
/ you should set up the problem like: $15x + x = 192$
/ add '15x + x' to get '16x'
/ divide both sides by '16'
/ 12 goes into 16 to get 192. simplify the fraction to 12.
/ x = 12
Ansley runs 180 miles (Zack only runs 12)

3 0

4 years ago