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3 years ago

PART 1!! There’s more to it so please help me!! lesson 3.3.4 Practice: modeling: graphs of functions!

Mathematics

1 answer:

asambeis [7]3 years ago

5 0

Answer:

the first cell next to 3 (time hours x) is 300

the point is (3, 300)

the second cell is 1000

the point is (10,1000)

the values for the second table should be the same if they have the same unit rate which is 100 watts per hour

Step-by-step explanation:

If there is 100 watts perhour just multiply the number of hours by this unit

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What is the simplified form of the following expression? Assume

HACTEHA [7]

Answer:

yes a

Step-by-step explanation:

4 0

3 years ago

A bakery sold 108 cupcakes in one day. The head baker predicted he would sell 88 cupcakes that day. What was the percent error o

tensa zangetsu [6.8K]

88/108 *100 = 81.48

100-81.48 = 18.52

I have heard this question before

7 0

3 years ago

I need help with the 3rd one if appreciate it.

igor_vitrenko [27]

Answer:

skp

Step-by-step explanation:

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3 years ago

A ) Rotate Trapezoid ABCD 90° counterclockwise around the origin .

FinnZ [79.3K]

Answer:

A" (3,3)

B" (3,5)

C" (5,7)

D" (5,1)

Yes they are congruent as they are similar and have the same shape and size.

Step-by-step explanation:

-y,x is the formula for a 90° counter clockwise rotation, And since the shape nor size doesnt change it is congruent.

8 0

1 year ago

Limited time . 10 points

AfilCa [17]

Answer:

Therefore the value of x is

$x=1\pm\sqrt{19}i$

Step-by-step explanation:

Given:

$x^{2}+20=2x$ which is

$x^{2}-2x+20=0$

To Find:

x = ? using Quadratic Formula

Solution:

For a Quadratic Equation ax² + bx + c = 0 , Formula Method is given as

$x=\dfrac{-b\pm\sqrt{b^{2}-4ac}}{2a}$

On Comparing with above we get

$a=1\\b=-2\\c=20$

Substituting a , b , c in Formula method we get

$x=\dfrac{-(-2)\pm\sqrt{(-2)^{2}-4(1)(20)}}{2\times 1}\\\\x=\dfrac{2\pm\sqrt{-76}}{2}\\\\x=\dfrac{2\pm2\sqrt{19}i}{2}\\Dividing\ by\ 2\ we\ get\\\\x=1 \pm\sqrt{19}i$

Therefore the value of x is

$x=1\pm\sqrt{19}i$

8 0

3 years ago