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3 years ago

12

Sofia is customizing shirts for the debate team. She can choose from 4 styles and 7 colors. How many different shirts is it poss

ible for Sofia to customize?

1 answer:

shusha [124]3 years ago

4 0

Since there are 7 options for every 4 styles, you take 7x4x4
There are 112 different shirts possible for Sofia to customize

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Which decimal is equivalent to<br> 4/20

Anastaziya [24]

The answer should be .20

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3 years ago

I need help finding the area of this shape can you please help

BabaBlast [244]

Answer: 139.27

Step-by-step explanation:

So let find the area of the black swuare the length is 10 and the widith is 10, using bxh the area is 100. Now let find the aea of the semi-circle. The area of a fill circle is pi radius squared so a semi circle area will be 1/2( pi radius squared). The radius is 5 so we can calculate 1/2 of 25 pi equal = 39.27. Now let add the areas: 100+39.27=139.27.

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3 years ago

If in triangle ABC, a=5, b=6 and c=8, then cos A is...

s2008m [1.1K]

In a triangle, the nomenclature is that a variable side a is opposite of the angle A. we can use the cosine law to determine the value of cosine A.
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3 years ago

According to the school survey, 12% of the students at rock wood junior high school speak Spanish. There are 36 students at the

exis [7]

Answer:

They surveyed 300 students

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In order to find this, take the number who said they speak Spanish and then divide that number by the percentage.

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3 years ago

4. The reflecting dish of a parabolic microphone has a cross-section in the shape of a parabola. The microphone itself is placed

elixir [45]

Assume the parabola is placed on a graph where the x-axis is the top of the dish.
The vertex is then at (0,-30) The x-intercepts or zeros are at (-30,0) and (30,0)

The equation of such parabola would be:
$y = a(x+30)(x-30)$
Plug in vertex to find value of 'a'
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Now find the focus given that $p = \frac{1}{4a}$
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Answer: the microphone should be placed 7.5 inches from vertex.

8 0

3 years ago