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3 years ago

Solve for x: -7 < X - 1 < 8

Mathematics

1 answer:

Triss [41]3 years ago

7 0

Answer: $\begin{bmatrix}\mathrm{Solution:}\:&\:-6$

Step-by-step explanation:

$-7$

$X>-6\quad \mathrm{and}\quad \:X$

$-6$

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Prove that if b is a square matrix then b+b^t is symmetric

WARRIOR [948]

A matrix $\mathbf X$ is symmetric if $\mathbf X=\mathbf X^\top$ . We have

$(\mathbf B+\mathbf B^\top)^\top=\mathbf B^\top+(\mathbf B^\top)^\top=\mathbf B^\top+\mathbf B=\mathbf B+\mathbf B^\top$

and so $\mathbf B+\mathbf B^\top$ is indeed symmetric.

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3 years ago

Erica was given $300 for her birthday and decided to put it in a savings account that earns 3.75% interest. If she makes no othe

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Answer:

80,000

Step-by-step explanation:

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3 years ago

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Please help 6TH GRADE MATH HELP ME OUT PLEASE

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▹ Answer

▹ Step-by-Step Explanation

$\frac{1}{4} + \frac{1}{10} \\= Common denominator is 20\\\\\frac{1}{4} = \frac{5}{20} \\\\\frac{1}{10} = \frac{2}{20} \\\\\frac{5}{20} + \frac{2}{20} \\\\= \frac{7}{20}$

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3 years ago

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Help me on this question

MAVERICK [17]

Answer:

x = 8

Step-by-step explanation:

It is given that the two polygons are similar, one property of similar polygons is that if one were to multiply each side length by a certain number (referred to as the ratio of similitude), they would get the side length of the corresponding side on the other polygon. To find the ratio one has to divide the side length of one polygon by its corresponding side length in the other polygon.

30 ÷ 25 = 1.2

Set up an equation by multiplying one side length by the ratio of similitude, set it equal to its corresponding side length in the other polygon;

1.2 (35) = 4x + 10

Simplify,

42 = 4x + 10

Inverse operations,

42 = 4x + 10

32 = 4x

8 = x

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nalin [4]

Answer:

3/16 / 5/6 = 9/40

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2 1/6 / 1 1/3 = 1 13/20

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3 years ago