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3 years ago

What is the answer to 1 1/10+2 4/5

Mathematics

1 answer:

Lesechka [4]3 years ago

7 0

Answer:

39/10

3 9/10

3.9

Step-by-step explanation:

Convert the mixed number to an improper fraction

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What is the sum of (2x+4)+(-3x+9)

Levart [38]

Answer:

-x + 13

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define expression

(2x + 4) + (-3x + 9)

Step 2: Simplify

Combine like terms (x): -x + 4 + 9
Combine like terms (Z): -x + 13

7 0

3 years ago

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A standard six-sided die is thrown. What is the probability that the number

natali 33 [55]

Answer:

2/6 or 1/3

Step-by-step explanation:

There are two numbers who are equal or less than 2 its 1 and 2

And the total is 6 so its 2/6 which is 1/3

Sorry if this is late

4 0

3 years ago

If square KLMN is dilated by a scale factor of 1 5 with a center of dilation at the origin, how does the area of K'L'M'N' compar

postnew [5]

The areas will be in the ratio 1 : 1.5^2 = 1 .2.25
The area will be larger by a factor 2.25.

7 0

4 years ago

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What is the scale factor in the dilation if the coordinates of A prime are (–7, 6) and the coordinates of C prime are (–4, 3)?

olchik [2.2K]

Option A: $\frac{1}{3}$ is the dilation factor

Explanation:

The Coordinates of the square ABCD are A(-21,18), B(-12,18), C(-12,9), D(-21,9)

Also, the coordinates of the square A'B'C'D' are A'(–7, 6), B'(-4,6), C'(-4,3), D'(-8,3)

Now, we shall determine the scale factor in the dilation if the coordinates A' and C'.

Since, the dilation is the enlargement of the image in the same shape but different size.

To determine the scale factor, let us divide A'C' by AC

Thus, we have,

$\begin{aligned}A^{\prime} C^{\prime} &=\sqrt{(-4+7)^{2}+(3-6)^{2}} \\&=\sqrt{3^{2}+(-3)^{2}} \\&=\sqrt{9+9} \\&=\sqrt{18}\\&=3\sqrt{2} \end{aligned}$

Also,

$\begin{aligned}A C &=\sqrt{(-12+21)^{2}+(9-18)^{2}} \\&=\sqrt{9^{2}+(-9)^{2}} \\&=\sqrt{81+81} \\&=\sqrt{162}\\&=9\sqrt{2} \end{aligned}$

Dividing A'C' by AC, we have,

$\frac{A'C'}{AC} =\frac{3\sqrt{2} }{9\sqrt{2}} =\frac{1}{3}$

Thus, $\frac{1}{3}$ is the dilation factor

3 0

3 years ago

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Find the distance between each pair if points

sukhopar [10]

Answer:

point a is positive but point b is negative

6 0

3 years ago