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4 years ago

PLEASE CAN SOMEONE HELP!

Mathematics

1 answer:

lakkis [162]4 years ago

3 0

Answer:

35 percent

Step-by-step explanation:

the anser your looking for is 35 perecnt

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Is the given sequence arithmetic? If so identify the common difference. 3,8,13,28

Evgesh-ka [11]

Answer:

yes,5

Step-by-step explanation:

6 0

3 years ago

Please help me because I don't understand how to do it.:)

nadezda [96]

Answer:

231.7 cm^2

Step-by-step explanation:

We can find the area by adding the area of the rectangle to the area of the 2 triangles.

The rectangle is

7+7+7 by 9

21 by 9

A = length * width

A = 21*9

A = 189

The triangles are identical so we find the area of one of them and multiply by 2

The base is 7 and the height is 6.1

A = 1/2 b*h

but since we have 2 of them

2A = 2*1/2 b*h

2A = b*h

2A = (7* 6.1)

= 42.7

Add the rectangles area to the area of the two triangles

189 + 42.7

231.7 cm^2

6 0

4 years ago

How do I solve these equations

Sever21 [200]

You need to know the properties of each function.
Tan is opposite (y) over adjacent (x). Sin>0 means that sin is positive, therefore, it is located on either quadrant 1 or 2. Tan=4/3 so it is located in quadrant 1.
The side of the triangle must be Adjacent=3 opposite=4 and hypotenuse=5
Now, you are asked to find the half angle of Cos which is
$\sqrt{\frac{1+cos}{2} }$
By following the formula, cos=3/5 then:
$\sqrt{ \frac{1- \frac{3}{5} }{2} }$ Multiply everything (inside the square $\sqrt{ \frac{5+3}{10} }$ root) by 5
$\frac{2 \sqrt{2} }{ \sqrt{10} }$
$\frac{2 \sqrt{20} }{10}$ Then just simplify
$\frac{ \sqrt{20} }{5}$ The answer is Square root of 20 over 5

3 0

3 years ago

Please help me on this

katen-ka-za [31]

The slope is 1/3 because the y axis is the numerator while the denom is the x axis.

8 0

3 years ago

Find the translation rule and the scale factor of the dilation that transforms Ol to Ol'.

lisov135 [29]

Answer:

C (x, y) -> (x + 7, y + 8); scale factor = 3

Step-by-step explanation:

The translation can be found by subtracting the coordinates of the original center from those of the center of the image. The scale factor will be the ratio of the radii.

<h3>translation</h3>

We note the center coordinates are I(-3, -6) and I'(4, 2). Then the translation is ...

I' -I = (4, 2) -(-3, -6) = (4 +3, 2 +6) = (7, 8)

(x, y) ⇒ (x +7, y +8)

<h3>scale factor</h3>

The radius of each circle can be found by counting the grid squares from the center to the circle. It works best to do this along a horizontal or vertical line.

The radius of circle I is 2; the radius of circle I' is 6. The scale factor is ...

scale factor = 6/2 = 3

4 0

2 years ago