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mestny [16]
3 years ago
6

. Simplify the expression. 4 + 18 ÷ 2 – 1

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
7 0
The answer is 10

4 + 18 = 22 / 2 = 11 - 1 = 10

I hope this helps :)


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7 0
3 years ago
Instructions: Find the surface area of the figure below. Round your answers to the nearest tenth, if necessary.
Y_Kistochka [10]

The surface area of the figure given is of: 61.3 yd².

<h3>What is the combined surface area of a figure?</h3>

The combined surface area of a figure is the area of each figure.

This figure is composed by:

  • A circle of radius 3 yd.
  • A triangle with base 6 yd and one leg 11.4 yd.

The area of the circle is given as follows:

A = \pi r^2 = \pi \times 3^2 = 9\pi

For the triangle, we need to find it's height, which is the <u>leg of a right triangle, in which one of the sides is 3 and the hypotenuse is 11.4</u>, hence:

h² + 3² = 11.4²

h = \sqrt{11.4^2 - 3^2}

h = 11 yd.

Hence the area of the triangle is:

A = 0.5 x 6 x 11 = 33 yd²

The surface area of the figure is:

9pi + 33 yd² = 61.3 yd².

More can be learned about the surface area of at brainly.com/question/21208177

#SPJ1

6 0
2 years ago
In the complex number system, which of the following is equal to
pogonyaev

Answer:

C) 122+154i

Step-by-step explanation:

(14-2i)(7+12i)\\\\(14)(7)+(14)(12i)+(-2i)(7)+(-2i)(12i)\\\\98+168i-14i-24i^2\\\\98+154i-24(-1)\\\\98+154i+24\\\\122+154i

Therefore, C is correct. Recall that i^2=-1

3 0
2 years ago
Read 2 more answers
6:15:21 in its simplest form
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6:15:21

6:15:21= 2:5:7

<em>(when divided by 3)</em>

7 0
3 years ago
Read 2 more answers
Kate Alexander worked 40 hours last week. Her pay rate is $8.50 per hour. Assuming 7.65% social security withholding, how much s
Andrej [43]
40 x 8.50 = 340
340  x  .0765 = 26.01

So the employer should withhold $26.01 from her check for social security.
8 0
2 years ago
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