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3 years ago

Complete the table by squaring each positive x-value listed 2, 3,4,5,6,7,8,9,10,11

Mathematics

1 answer:

elena55 [62]3 years ago

4 0

2²=4 2×2

3²=9 3×3

4²=16 4×4

5²=25 5×5

6²=36 6×6

7²=49 7×7

8²=64 8×8

9²=81 9×9

10²=100 10×10

11²=121 11×11

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When a plane flies into the wind, it can travel 3000 miles in 6 hours. When it flies with the wind, it can travel the same dista

gtnhenbr [62]

Answer: the rate of the plane in still air is 550 mph and the rate of the wind is 50 mph

Step-by-step explanation:

Let x represent the rate of the plane in still air.

Let y represent the rate of the wind.

When a plane flies into the wind, it can travel 3000 miles in 6 hours. The total speed with which the plane flew is x - y

Distance = speed × time

Therefore,

3000 = 6(x - y)

Dividing through by 6, it becomes

500 = x - y - - - - - - - - - - - - - -1

When it flies with the wind, it can travel the same distance in 5 hours.

The total speed with which the plane flew is x + y

Distance = speed × time

Therefore,

3000 = 5(x + y)

Dividing through by 5, it becomes

600 = x + y - - - - - - - - - - - - - -2

Adding equation 1 to equation 2, it becomes

1100 = 2x

x = 1100/2 = 550

Substituting x = 550 into equation 1, it becomes

500 = 550 - y

y = 550 - 500

y = 50

5 0

3 years ago

PLEASE ANSWER I WILL MARK AS BRAINLIEST

aalyn [17]

Answer:

$\large \boxed{\text{Eight days}}$

Step-by-step explanation:

1.Convert all volumes to millilitres

(a) Chlorpheniramine

V = 100 mL

(b) Lidocaine

$V = \text{2 fl oz} \times \dfrac{\text{29.57 mL}}{\text{1 fl oz}} = \text{59 mL}$

(c) Banana flavouring

$V = \dfrac{1}{2}\text{ tsp} \times \dfrac{\text{4.928 mL}}{\text{1 tsp}} = \text{2.5 mL }$

2. Calculate the total volume

Chlorpheniramine = 100 mL

Lidocaine = 59

Banana flavouring = <u> 2.5 </u>

TOTAL = 162 mL

3. Calculate the number of doses

$\text{Doses} = \text{162 mL} \times \dfrac{\text{1 dose}}{\text{10 mL}} = \text{16.2 doses}$

4. Calculate the number of days

$\text{Days} = \text{16.2 doses } \times \dfrac{\text{1 da}}{\text{2 doses}} = \textbf{8 da}\\\\\text{The solution will last for $\large \boxed{\textbf{eight days}}$}$

3 0

4 years ago

Please help asap ill give u brainliest too please

Mumz [18]

Answer: the solution is 1

Step-by-step explanation:

you subtract the 8 from 9 so you can get the variable, y, by itself.

3 0

3 years ago

Read 2 more answers

What is 9x9 is 81 because if you count by 9 times the 9 is 81

mote1985 [20]

Answer:

Yes it's 81

Step-by-step explanation:

9 x 9 = 81

9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 = 81

Your welcome

6 0

3 years ago

What is the missing number? 7 1 1 B

eduard

Answer:

1/8

Step-by-step explanation:

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3 years ago