4 years ago

How can you simply 4/5 to get 80%

Mathematics

1 answer:

andriy [413]4 years ago

8 0

When you divide 4 by 5 you get .8 so you have to move the decimal and you get 80%.

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F(x)=3x-2 what is the function for f(3)

Vlad1618 [11]

F(x) = 3x - 2
f(3) = 3(3) - 2
f(3) = 9 - 2
f(3) = 7

6 0

3 years ago

If x = -9 and y = 3, evaluate the following expressions. :<br>(4y)2 – (2x)?<br>2.<br>4y2 – 2x2

Licemer1 [7]

To evaluate the expressions, you substitute -9 for x and 3 for y into the expressions

(4y)^2 - (2x)

= (4(3))^2 - (2(-9))

= (12)^2 - (-18)

= 144 + 18

= 162

4y^2 - 2x^2

= 4(3)^2 - 2(-9)^2

= 4(9) - 2(81)

= 36 - 162 = -126

3 0

3 years ago

(The question is in the photo)

Naddik [55]

Answer:

6.99

Step-by-step explanation:

11.99+2.99+5.99=20.97

20.97/3=6.99

6 0

3 years ago

Read 2 more answers

Suppose Madison is traveling due west for 0.5 miles and then due south for 1.2 miles.

sweet [91]

Answer:

b) 1.3 units

b) 22.61° East of North

Step-by-step explanation:

$|\vec{AB}|=\sqrt{0.5^2+1.2^2}\\\Rightarrow |\vec{AB}|=\sqrt{0.25+1.44}\\\Rightarrow |\vec{AB}|=\sqrt{1.69}\\\Rightarrow |\vec{AB}|=1.3$

$|\vec{AB}|=1.3\ units$

Magnitude of vector AB is 1.3 units

$tan\theta=\frac{0.5}{1.2}\\\Rightarrow \theta=tan^{-1}\frac{0.5}{1.2}\\\Rightarrow \theta=22.61^{\circ}$

The direction of vector AB is 22.61° East of North

8 0

3 years ago

Find the Surface Area of the right triangular prism.

Elis [28]

It’s always gonna be 60 Units this is just an known fact

8 0

3 years ago