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3 years ago

Simplify the expression 15+(x+9)+3

Mathematics

2 answers:

Allushta [10]3 years ago

4 0

27 + x is the simplified expression.

Mashcka [7]3 years ago

3 0

X+27 that's what it is

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Find the sum of the finite geometric series: 5 + 10 + 20 + ... +81,920.

Anestetic [448]

Answer:

No solution

Step-by-step explanation:

This is a geometric sequence since there is a common ratio between each term. In this case, multiplying the previous term in the sequence by 2 gives the next term. In other words, a n +a1 ⋅ r n -1

Geometric Sequence: r = 2

The series given has a value of r such that r > 1 or r < − 1. Therefore, the infinite sum cannot be calculated.

8 0

2 years ago

What is (x2 - 7x + 12) / (x-3) A. X-4 B. X-10 C. -4x+12 D. X-3

dybincka [34]

The answer is A. x - 4

5 0

3 years ago

<img src="https://tex.z-dn.net/?f=7%20%5Cfrac%7B2%7D%7B3%7D%20%20" id="TexFormula1" title="7 \frac{2}{3} " alt="7 \frac{2}{3}

sammy [17]

Answer:

$7 \frac{2}{3}=\frac{7*3+2}{3}=\frac{23}{3}$

$7 \: \frac{1}{2}=\frac{7*2+1}{2}=\frac{15}{2}$

$5842 \div 23=254$

8 0

3 years ago

True or false this number is written in scientific notation? .2486 x 10^12

Scilla [17]

Answer:

It is true because scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation as 6.5 ✕ 10^8.

8 0

3 years ago

Anyone know how to do this

svlad2 [7]

Answer:

The area of the rectangle on the left side is

$9cm \: \times 4cm = 36 {cm}^{2}$

The area of the bottom rectangle is

$6cm \times 2cm = 12 {cm}^{2}$

The total area of the composite figure will be

$36 {cm}^{2} + 12 {cm}^{2} = 48 {cm}^{2}$

Step-by-step explanation:

The area of any given rectangle can be found by multiplying the length of that rectangle by its width. The rectangle on the left side has a length of 9cm but the width is unknown. To find the width, we subtract 6cm from the width of the bottom rectangle: 10cm. And that gives us 4cm.

Therefore, we can now calculate the area to be: length × width = 9cm × 4cm = 36cm²//

The area of the bottom rectangle can be found similarly by multiplying the length: 2cm by the width: 6cm of that rectangle. And the result gives us: 2cm × 6cm = 12cm²//

The total area of the composite figure is calculated by adding the results from the left and bottom rectangles together. And that gives us: 36cm² + 12cm² = 48cm²//

8 0

3 years ago