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3 years ago

What is the approximate value of X round to the nearest 10th

Mathematics

1 answer:

Alik [6]3 years ago

6 0

Answer:

The correct answer is C) 4.6

Step-by-step explanation:

To find this, use the trigonometry functions. In this case, since we have the hypotenuse and are looking for the opposite, we use Sin.

Sin(α) = OPP/HYP

Sin(50) = x/6

6Sin(50) = x

4.6 = x

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Find the number if: 1 2/3 % of it is 4.75 Find the number if: 900% of it is 450

olchik [2.2K]

Your answers will be
a)38.62

and

b)50

8 0

3 years ago

Read 2 more answers

How do you solve 33 + 27.2 – (6.8 + 24) – 3.1 i need it for an paper im doing and need to show my work

Neporo4naja [7]

Answer:

26.3

Step-by-step explanation:

33+27.2–(6.8+24)–3.1

Add 33 and 27.2 to get 60.2.

60.2−(6.8+24)−3.1

Add 6.8 and 24 to get 30.8.

60.2−30.8−3.1

Subtract 30.8 from 60.2 to get 29.4.

29.4−3.1

Subtract 3.1 from 29.4 to get 26.3.

26.3

I hope it helps.

3 0

3 years ago

Read 2 more answers

A rectangle has vertices E(-4, 8), F(2, 8), G(2, -2) and H(-4, -2). The rectangle is dilated with the origin as the center of di

Marizza181 [45]

Answer:

The dilation on any point of the rectangle is $P'(x,y) = \frac{5}{2}\cdot P(x,y)$ .

Step-by-step explanation:

From Linear Algebra, we define the dilation of a point by means of the following definition:

$G'(x,y) = O(x,y) +k\cdot [G(x,y)-O(x,y)]$ (1)

Where:

$G(x,y)$ - Coordinates of the point G, dimensionless.

$O(x,y)$ - Center of dilation, dimensionless.

$k$ - Scale factor, dimensionless.

$G'(x,y)$ - Coordinates of the point G', dimensionless.

If we know that $O(x,y) = (0,0)$ , $G(x,y) =(2,-2)$ and $G'(x,y) =(5,-5)$ , then scale factor is:

$(5,-5) = (0,0) +k\cdot [(2,-2)-(0,0)]$

$(5,-5) = (2\cdot k, -2\cdot k)$

$k = \frac{5}{2}$

The dilation on any point of the rectangle is:

$P'(x,y) = (0,0) + \frac{5}{2}\cdot [P(x,y)-(0,0)]$

$P'(x,y) = \frac{5}{2}\cdot P(x,y)$ (2)

The dilation on any point of the rectangle is $P'(x,y) = \frac{5}{2}\cdot P(x,y)$ .

5 0

3 years ago

Find the solution of the system of equations. - 3x + 4y = 12 2.x + 2y = -22

Nikitich [7]

Answer:

x = -8

y = -3

Step-by-step explanation:

So first you're going to want to get x or y by itself using elimination or substitution. I used elimination to get x by itself.

You can multiply the second equation (2x + 2y = -22) by -2 so you can eliminate the y's. When you multiply it, you get -4x - 4y = 44

Then, you can add -3x + 4y = 12 and -4x - 4y = 44. The y's cancel out to leave -7x = 56. Divide both sides by -7 to get x = -8.

Now, you can plug in -8 for x in either one of the equations. I plugged it into the second equation to make it 2(-8) + 2y = -22.

2 · -8 = -16.

-16 + 2y = -22. Add 16 to both sides to get 2y = -6. Divide both sides by to get y = -3.

Hope this helps! :)

8 0

3 years ago

HELP ME PLEASEEEE! Thank you

Sergio039 [100]

Answer:

A. Yes

B. Yes

C. No

Step-by-step explanation:

We can substitute each value in to the equation and see if the sides match up. Let's start with a.

$4\cdot(2)-3 = -2\cdot(2)+9\\8-3 = -4+9\\5 = 5$

So, n = 2 works for equation a. Let's try B.

$9\cdot(\frac{10}{3}) - 19 = 3\cdot(\frac{10}{3}) + 1\\\\\\\frac{90}{3} -19 = \frac{30}{3} + 1 \\ 30 - 19 = 10 + 1\\11 = 11$

So, m = $\frac{10}{3}$ works for B. Now let's try C.

$3(30+8) = 2\cdot(30)-6\\3(38) = 60-6\\114 \neq 54$

So y = 30 doesn't work for C.

Hope this helped!

6 0

4 years ago