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2 years ago

10x+2=9x3 what is the answer

Mathematics

1 answer:

yKpoI14uk [10]2 years ago

6 0

Answer:

8.5

Step-by-step explanation:

10x+2=9x(3)

10x+2=27x

2=17x

x=8.5

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Could someone help me answer this? Solve -2log8(x + 1) = -8. Thanks so much!

drek231 [11]

Step one, divide both sides by -2
log8(x+1)=4

if the base is 10, and the 8 is together with (x+1): (cannot tell from the way it is written)
8(x+1)=10^4=10000
x+1=1250
x=1249

if the 8 is a base,
8^4=(x+1)
x+1=4096
x=4095

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3 years ago

Which of the following statements is true?

wolverine [178]

Answer:

D: Point E is the midpoint of segment AC

Step-by-step explanation:

The midpoint is a point where it is in the middle of a line, line segment, or ray.

Congruent means something that is exactly the same.

Congruent triangles are two triangles are congruent if their corresponding sides are equal in length, and their corresponding angles are equal in measure.

Bisect means separating something into two precise and equal pieces/ angles.

Similar triangles means two objects are similar if they have the same shape, or one has the same shape as the mirror image of the other.

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2 years ago

A population of 800 spiders is decreasing at a rate of 14% each week. How many weeks will it take for the population to be half

Marrrta [24]

Answer:

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2 years ago

The speed of light is approximately 299,000,000 meters per second.

jek_recluse [69]

Answer:

2.99 x 10⁸ meters per second

Step-by-step explanation:

Scientific notation (also called "Standard form") is written in the form of $a \times 10^n$ , where $1\leq a < 10$ and $n$ is any positive or negative whole number.

To convert a number into scientific notation, move the decimal point to the left or right until there is one digit before the decimal point.

The number of times you have moved the decimal point is the power of 10 ( $n$ ).

If the decimal point has moved to the left, the power is positive.

If the decimal point has moved to the right, the power is negative.

To convert the given number to scientific notation

The decimal point for the given number 299000000 is after the last zero:

⇒ 299000000.

Move the decimal point 8 places to the left:

⇒ 2.99000000

Get rid of the redundant zeros:

⇒ 2.99

Multiply by 10 to the power of the number of decimal places moved:

⇒ 2.99 x 10⁸

Therefore, the speed of light using scientific notation is:

2.99 x 10⁸ meters per second

7 0

1 year ago

A Norman window has a length of 3 ft and width of 4 ft find the area of the rectangular piece of the glass

KengaRu [80]

Area= Length * Width

3*4= 12

Answer: 12ft^2

7 0

3 years ago