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2 years ago

Which expression is equivalent to -8(3/4x-2)

Mathematics

2 answers:

natulia [17]2 years ago

8 0

Answer:

−6x+16

Step by Step Explanation

stiks02 [169]2 years ago

5 0

Answer: -6x + 16

Explanation: ok so ......
-8(3/4x - 2)
Multiply each term in the parentheses by - 8
- 8 x 3/4x - 8x (- 2)
Reduce the numbers with the greatest common factor 4
- 2 x 3x - 8x (- 2)
Multiply the numbers
-2 x 3x + 16
Calculate the product
-6x + 16..... hope that helps :/

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PLEASE HELP ME <br><br>11) Which letter best shows ? 12) Which letter best shows ?

Dafna1 [17]

Answer:

Step-by-step explanation:

7 0

1 year ago

Please help I was asigned this for how and I am stuck

Ludmilka [50]

Answer:

-0.555

Step-by-step explanation:

-2/3÷12

=-2/3÷12×3/1×3

=-2/3÷36/3

=-2/3×3/36

=-2/36

=-0.0555

I got this answer but don't know how did you got -8?!

7 0

2 years ago

The polar coordinates of a point are 3π 4 and 7.00 m. What are its Cartesian coordinates (in m)? (x, y) = 6.06,−3.5 m

Keith_Richards [23]

Answer:

a) $\left(x,y\right)=\left(4.95,-4.95\right)$

b) $r\angle\theta = 7\angle0.5236\,\text{radians}$

Step-by-step explanation:

Polar coordinates are represented as: $r\angle\theta$ , where 'r' is the length (or magnitude) of the line, and ' $\theta$ ' is the angle measured from the positive x-axis.

in our case:

$7\angle\dfrac{3\pi}{4}$

to covert the polar to cartesian:

$x = r\cos{\theta}$

$y = r\sin{\theta}$

we can plug in our values:

$x = 7\cos{\dfrac{3\pi}{4}} = -7\dfrac{\sqrt{2}}{2}$

$y = 7\sin{\dfrac{3\pi}{4}} = 7\dfrac{\sqrt{2}}{2}$

the Cartesian coordinates are:

$\left(x,y\right)=\left(-7\dfrac{\sqrt{2}}{2},7\dfrac{\sqrt{2}}{2}\right)$

$\left(x,y\right)=\left(4.95,-4.95\right)$

(b) to convert (x,y) = (6.06,-3.5)

we'll use the pythagoras theorem to find 'r'

$r^2 = x^2+y^2$

$r^2 = (6.06)^2+(-3.5)^2$

$r = \sqrt{48.97} \approx 7$

the angle can be found by:

$\tan{\theta} = \dfrac{y}{x}$

$\tan{\theta} = \dfrac{3.5}{6.06}$

$\theta = \arctan{left(\dfrac{3.5}{6.06}\right)}$

$\theta = 0.5236 \text{radians}$

to convert radians to degrees:

$\theta = 0.5236 \times \dfrac{180}{\pi} \approx 30^\circ$

writing in polar coordinates:

$r\angle\theta = 7\angle30^\circ\,\,\text{OR}\,\,7\angle0.5236\,\text{radians}$

5 0

2 years ago

( 32.45 - 4.8) - 2.06

Igoryamba

Answer:

25.59

Step-by-step explanation:

The first thing that you will do is solve parenthesis (remember PEMDAS).

(32.45-4.8) - 2.06

(27.65) - 2.06

Then do the subtraction.

(27.65) - 2.06=

25.59

Hope this helps!

5 0

2 years ago

THIS IS TIMES I ONLY HAVE 5 MINUTES LEFT PLEASE SOMEONE HELP!!

Delvig [45]

Answer:

A. 10+10+5x=80 or 20+5x=80

B. Disagree, After the pay for each person to get in the have 60 dollars left. Each ride costs 5 dollars. 60 divided by 5=12 and each of them would need a ticket, so they could only ride 6 rides/

C. 20/5=4=they could by an additional 4 tickets, each would need a ticket so they could ride 2 more rides each

Step-by-step explanation:

80-20=60

60/5=12

3 0

2 years ago

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Which expression is equivalent to -8(3/4x-2)​

Which expression is equivalent to -8(3/4x-2)