3 years ago

What is the image of the point (9,7) after a rotation of 180° counterclockwise

Mathematics

1 answer:

NeX [460]3 years ago

5 0

Answer:

(-9,-7)

Step-by-step explanation:

(x,y)—>(-x,-y)

(9,7)—>(-(9),-(7))=(-9,-7)

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Johann wants to find a rectangular solar panel with an area of 128 cm. If the

Papessa [141]

Answer:

The length of rectangular panel is 6.4 cm.

Step-by-step explanation:

We are given the following information in the question:

Area of rectangular solar panel = 128 square cm

Width of panel = 20 cm

We have to find the length of the panel

Formula:

$\text{Area of rectangular panel} = \text{Width}\times \text{Length}\\\Rightarrow 128 = 20\times \text{Length}\\\\\text{Length} = \displaystyle\frac{128}{20} = 6.4\text{ cm}$

Hence, the length of rectangular panel is 6.4 cm.

This is an example of direct variation as greater would be length and breadth, the greater would be the area.

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3 years ago

In the diagram, ABC is a right - angled triangle.

Firdavs [7]

$\to \rm \sin(30) = \dfrac{AC }{AB}$

$\\ \\$

$\to \rm \sin(30) = \dfrac{AC }{40}$

$\\ \\$

$\to \rm \dfrac{1}{2} = \dfrac{AC }{40 \degree}$

$\\ \\$

$\to \rm \dfrac{40}{2} =AC$

$\\ \\$

$\to \rm \: AC = 20 m$

4 0

2 years ago

The total is 60 what is 5% of 60 dollers

wlad13 [49]

5% of 60 dollars is 3 dollars.

8 0

2 years ago

What is the final price of a product that costs $14.30 with an added tax rate of 4%?

LenKa [72]

Change 4% into a decimal (.04)

14.30 x .04 = .57

Add the tax to product

14.30 + .57 = 14.87

8 0

3 years ago

What is the equation of a line that passes through the points (3,6) and (8,4)?

Semmy [17]

Answer:

= x-

y-x-2

y=-3x-24

y=-x+

Step-by-step explanation:

3 0

3 years ago