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3 years ago

At 8 AM the temperature was 3 degrees below zero. By 9 AM the temperature had gone up 6 degrees, but by 10

Mathematics

2 answers:

V125BC [204]3 years ago

6 0

Hello There!

The temperature at 10 am in the morning was 1 degree below zero.

First, we know at 8 am that the temperature was 3 degrees below zero so that number is -3 and it’s our starting number.

Next, it says an hour later the temperature has gone up 6 degrees so we have -3 + 6 and we get a sum of positive 3.

Finally, at 9 am the temperature dropped again but this time 4 degrees so 3 - 4 = -1

The temperature at 10 am in the morning was 1 degree below zero.

Alecsey [184]3 years ago

5 0

Answer:

The correct answer is:

16˚F

Step-by-step explanation:

The correct answer is:

-14˚F + 10˚F = -4 ˚F

10˚F x 2 = 20˚F

-4˚F + 20˚F = 16˚F

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Which is answer if not know please solve for mw

Vlad1618 [11]

<h3>Answers:</h3><h3>Area of parallelogram = 63</h3><h3>Area of triangle = 34</h3><h3>Area of trapezoid = 84</h3><h3>The trapezoid has the largest area</h3>

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Work Shown:

area of parallelogram = base*height

area of parallelogram = 9*7

area of parallelogram = 63

----------

area of triangle = (1/2)*base*height

area of triangle = (1/2)*10*6.8

area of triangle = 34

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area of trapezoid = height*(base1+base2)/2

area of trapezoid = 6*(13+15)/2

area of trapezoid = 6*(28)/2

area of trapezoid = 168/2

area of trapezoid = 84

5 0

3 years ago

What are the solutions of the equation x^4-9x^2+8=0? Use u substitution to solve.

vodka [1.7K]

Answer:

The answer is the second option

Step-by-step explanation:

Let u=x^2.

$( {x}^{2} ) {}^{2} - 9( {x}^{2} ) + 8( {x}^{2} ) {}^{0}$

${u}^{2} - 9u + 8$

$(u - 1)(u - 8)$

$u = 1$

$u = 8$

Set this equal to x^2

${x}^{2} = 1$

$x = 1$

$x = - 1$

${x}^{2} = 8$

$x = 2 \sqrt{2}$

$x = - 2 \sqrt{2}$

4 0

1 year ago

Zaid has a peculiar pair of four-sided dice. When he rolls the dice, the probability of any particular outcome is proportional t

Elden [556K]

Answer: a) $\bold{\dfrac{3}{16}}$ b) $\bold{\dfrac{1}{36}}$

<u>Step-by-step explanation:</u>

a) In order to get an even number, you have the 3 different scenarios:

1) Even, Even, Even, Even $\dfrac{3\times 3\times 3\times 3}{6^4} \quad = \dfrac{3^4}{6^4}\quad =\dfrac{1}{16}$

2) Even, Even, Odd, Odd $\dfrac{3\times 3\times 3\times 3}{6^4} \quad = \dfrac{3^4}{6^4}\quad =\dfrac{1}{16}$

3) Odd, Odd, Odd, Odd $\dfrac{3\times 3\times 3\times 3}{6^4} \quad = \dfrac{3^4}{6^4}\quad =\dfrac{1}{16}$

<em>Order doesn't matter</em>

Add them up to get your answer: $\dfrac{1}{16}+\dfrac{1}{16}+\dfrac{1}{16}\quad =\large\boxed{\dfrac{3}{16}}$

b) If one die is a 2 and another is a 3 and the other two dice can be any number, then you have 1 possibility for a 2, 1 possibility for a 3, and 6 possibilities for each of the other two dice.

$\dfrac{1\times 1\times 6\times 6}{6^4}\quad =\dfrac{1}{6^2}\quad =\large\boxed{\dfrac{1}{36}}$

3 0

3 years ago

Please! Need help on this question

alina1380 [7]

Answer: D and E

the answers is between 1 and 2 so A is out

the dot is a little more than halfway so B and C are out

D and E are left :)

6 0

3 years ago

Read 2 more answers

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Inessa05 [86]

Answer:

2m × <u> 100 </u> = <u> 200 </u>cm

Step-by-step explanation:

well the prefix <em>centi</em> means 100, and if you want to know how many <em>centi</em>meters are in a meter, then you should multiply by 100

2m × <u> 100 </u> = <u> 200 </u>cm.

6 0

3 years ago