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3 years ago

What expressions are equivalent to 10x + 30x?

Mathematics

1 answer:

Yuri [45]3 years ago

7 0

Answer:

5(2x+6x) and 10(x+3x)

Step-by-step explanation:

because the three results 40x

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Task 1:

laiz [17]

Answer:

The toy's maximum height is $10.12\ \text{feet}$ .

Step-by-step explanation:

The equation that models the toy's height in feet from the ground at t seconds after he threw it is given by :

$h = -2t^2 + 7t + 4$ .....(1)

It is required to find the toy's maximum height. For maxima or minima, put

$\dfrac{dh}{dt}=0$

Plugging the value of t in above equation,

$\dfrac{d(-2t^2 + 7t + 4)}{dt}=0\\\\-4t+7=0\\\\t=\dfrac{7}{4}\\\\t=1.75\ s$

Now put t = 1.75 s in equation (1) such that,

$h = -2(1.75)^2 + 7(1.75) + 4\\\\h=10.12\ \text{feet}$

So, the toy's maximum height is $10.12\ \text{feet}$ .

4 0

3 years ago

Find an ordered pair for x and y

Yuliya22 [10]

Answer: here are a few ordered pairs

1. (0,-4)

2.(8,0)

3.(16,4)

7 0

3 years ago

Help please :]!!<br> please be right,

pickupchik [31]

I think it’s c I had this question lol

8 0

3 years ago

Read 2 more answers

Does each set of side lengths form a right triangle 10 m, 11 m, 15 m or 15 m, 8 m, 17 m,

IrinaVladis [17]

Can you be a little more specific please

6 0

3 years ago

Read 2 more answers

Whatis the value of the expression<br> 2(x + 4) - (y-8)

valentina_108 [34]

Answer:

16 1/16

Step-by-step explanation:

x = ⅛
y = 3/16

= 2(x + 4) - (y - 8)

= 2(⅛ + 4) - (3/16 - 8)

= 2(4⅛) - (3/16 - 8/1)

= 2(33/8) - (3/16 - 128/16)

= (2 . 33/8) - (-125/16)

= 33/4 + 125/16

= 132/16 + 125/16

= 257/16

= 16 1/16

8 0

2 years ago