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2 years ago

-2/3 x (2 1/2) x (-3)

Mathematics

2 answers:

maks197457 [2]2 years ago

5 0

Answer:

Step-by-step explanation:

Remark

Change the order so that you are dealing with a cancelation first.

(-2/3) * (-3) * 2 1/2

Do the cancelation and multiply by 2 1/2

Solution

-2/3 * -3 = 2 There are two minus signs which make a plus.

2 * (5/2) = 10/2 = 5 (You could also cancel).

Answer 5

mamaluj [8]2 years ago

4 0

Answer:

the answer is 21

Step-by-step explanation:

126/6

=21

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Find the median, lower quartile, and upper quartile for the set of data.

Irina-Kira [14]

Answer:

The median is 2 lower quartile is 11 and upper quartile is 6

Step-by-step explanation:

hope this helps

5 0

3 years ago

Write an equation for the following tile pattern. Figure 2 Figure 3 Figure 4

oksano4ka [1.4K]

Answer:

The general equation following the pattern becomes is 7 + (n - 1)×2

Where, n = The figure number - 1

Step-by-step explanation:

The pattern in the question can be described as follows;

Figure 2 = (5 + 2) squares boxes = 7 squares boxes

Figure 3 = (5 + 2 + 2) squares boxes

Figure 4 = (5 + 2 + 2 + 2) squares boxes

Therefore, the number of squares boxes per figure, form an arithmetic progression (a + (n - 1)d) with the first term a = 7, the common difference d = 2, and the n = the nth term of the series, such that the general equation following the pattern becomes;

7 + (n - 1)×2.

3 0

3 years ago

Ben earns an annual income of $12,800 a year. The income tax he has to pay is 15%. What is the amount of income tax in dollars a

kirill115 [55]

Answer:

920

Explanation:

Find

12800

100

12800

920

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Please help and thanks

MAXImum [283]

Answer:

Step-by-step explanation:

its a straight line so all the angles have to add up to 180

4 0

2 years ago

Please please please help. thank you.

djverab [1.8K]

Lets get started :)

The First question:
Diameter = 20 ft
Radius = $\frac{1}{2}$ of 20 (diameter) = 20 ft

Area formula of a circle is
A = $\pi$ r²
= $\pi$ (10)²
=100 $\pi$ ft²
≈ 314 ft²

The answer will be the second option

The Second question:
radius of circle = 12mm divided into 20 sectors area

A = $\pi$ r²
= $\pi$ (12)²
= 144 $\pi$ ft²

Divide into 20 equal sector areas = $\frac{144 \pi }{20} = 7.2 \pi$

≈ 22.6 mm²

Your answer will be the third option

The Third Question:

90°, sector area = 36 $\pi$ , Radius = ?

$\frac{angle}{360} = \frac{sector}{ \pi (r)^2}$
$\frac{90}{360} = \frac{36 \pi }{ \pi r^2}$
$\pi$ and $\pi$ cancels out

We can now cross multiply
360 × 36 = 90r²
12960 = 90r²

Divide by 90 on either side

$\frac{12960}{90} = \frac{90r^2}{90}$
144 = r²

Take squareroot
$\sqrt{144} = x$
x = 12 in

Your answer will be the third option

4 0

3 years ago