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2 years ago

13

Ms Li has 4 different books and 1 red pen,1 blue pen and 1 black pen she is wrapping one book and one pen.Draw a tree diagram to

find the number of combinations she can choose.

1 answer:

scoray [572]2 years ago

8 0

12 different combinations because 4 times 3 equals 12.

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18) Solve for x. (-2x-6° X )

aalyn [17]

Answer:

-8x

Step-by-step explanation:

Subtract 6°x from -2x.

3 0

1 year ago

Read 2 more answers

What is the slope of the line going through A and B?

Pepsi [2]

The formula for slope is: m = (y2 - y1) / (x2 - x1) ---> m = (b - b) / (-a - a) = 0/(-2a) = 0

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2 years ago

It took Mrs. Harpole 35 minutes to grade

stepladder [879]

Answer:

700 minutes or 11.67 hours

Step-by-step explanation:

35/4=8.75

8.75*80=700

8 0

2 years ago

You are riding a roller coaster when a shoe falls off your foot. The function y=300−16t2 represents the height y (in feet) of th

Juli2301 [7.4K]

Answer:

Time to land on 11ft is 4.25 seconds

Step-by-step explanation:

Given

$y = 300 - 16t^2$

Required

Solve for t when height is 11ft

This implies that $y = 11$

So: substitute 11 for y in $y = 300 - 16t^2$

$11 = 300 - 16t^2$

Collect Like Terms

$16t^2 = 300 - 11$

$16t^2 = 289$

Express both sides as squares

$4^2 * t^2 = 17^2$

$(4t)^2 = 17^2$

Take square roots of both sides (ignore negative)

$4t = 17$

Solve for t

$t = \frac{17}{4}$

$t = 4.25$

Hence, time to land on 11ft is 4.25 seconds

8 0

2 years ago

Someone deleted my questions- okay?<br><br> answer this then- 2/3-6/7+7/8

Afina-wow [57]

Answer:

8/5 + 6 2/7

Step-by-step explanation:

Step 1: Make sure the bottom numbers (the denominators) are the same. Step 2: Add the top numbers (the numerators), put that answer over the denominator. Step 3: Simplify the fraction (if needed) hope I helped!!

4 0

2 years ago