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3 years ago

10x +2=7 what is the value of 2x

2 answers:

7 0

2x=1

First subtract 2 from both sides and the new equation with become 10x=5. Next divide by 5 on both sides to get 2x. The new equation will look like 2x=1

RoseWind [281]3 years ago

5 0

Answer:

Step-by-step explanation:

10x + 2 = 7

10x = 7 - 2

10x = 5

x = 5/10 reduces to 1/2

2x = 2(1/2) = 1 <==

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Mazyrski [523]

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3 years ago

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3 years ago

Given point B is located at

ELEN [110]

Answer: $\Large\boxed{Point~B'~=~(-4,~-2)}$

Step-by-step explanation:

Given information

Point B = (-2, -4)

Reflection line: y = x

Concept:

When reflecting over the line y = x, the position of y and x in the original coordinate switches places.

This is because it is " y = x ", assuming that they could interchange

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Please refer to the attachment below for a graphical understanding

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4 0

1 year ago

How do you do this question?

katovenus [111]

<h3>4 Answers: A, C, E, and F</h3>

================================================

Explanation:

Choice A is true assuming we have $a_n = (-1)^n*b_n$

In this case, $a_n = (-1)^n*\frac{1}{\sqrt{n}}$ and $b_n = \frac{1}{\sqrt{n}}$

--------

Choice B is false. See choice A above.

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Choice C is true. The sequence $\{b_n\}$ is decreasing. As n gets larger, $b_n$ gets smaller. This is because the denominator is growing larger with the numerator held constant.

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Choice D is false. This contradicts choice C.

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Choice E is true since the denominator is growing forever

This is similar to $\displaystyle \lim_{n \to \infty} \frac{1}{n} = 0$

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Choice F is true due to choices C and E being true.

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Choice G is false because it contradicts choice F.

8 0

3 years ago

Explain in detail with at least two sentences how to represent the product of A and B geometrically given that A=15+56i and B =

Nookie1986 [14]

Basically each part of the first complex number gets multiplied by each part of the second complex number. You are multiplying 2 binomials.

(15 + 56i(7 + 4i)

= 105 + 60i + 392i + 224i^2

= 105 + 452i - 224 ( because i^2 = -1)

= - 119 + 452i

7 0

3 years ago