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3 years ago

10

ROUND YOUR ANSWER TO THE NEAREST TENTH

1 answer:

Darya [45]3 years ago

4 0

Answer:

x = 16.5

Step-by-step explanation:

Use pythagorean theorem

a² + b² = c²

Plug in terms

7.1² + x² = 18²

Square each term

50.41 + x² = 324

Subtract a from c

x² = 273.59

Find square root

16.5

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natulia [17]

885/11.7=75.64/3.14=24.09=square root of 24.09=4.9

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3 years ago

Solve the system of equations. <br> 9x+11y=2 <br> 3x+4y=4

Ronch [10]

Answer:

X= -12 Y=10

Step-by-step explanation:

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3 years ago

Remove the brackets using the distributive law for the following: 2(x + 3)

Vanyuwa [196]

Answer:

2x + 6

Step-by-step explanation:

= 2(x + 3)

= 2(x) + 2(3)

= 2x + 6

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3 years ago

Mary throws her Grandma’s favorite crystal dish out the second floor window, which is 6 meters from the ground. She is really up

wlad13 [49]

we know that

acceleration due to gravity is 9.8m/s^2

so, we get

$a(t)=9.8$

and acceleration will always be constant

we know that

integral of acceleration is velocity

so, we can integrate both sides

$\int \:a\left(t\right)dt=\int \:9.8dt$

$v(t)=9.8t+C$

we are given

v(0)=35m/s

we can use it and find C

$v(0)=9.8*0+C$

$35=9.8*0+C$

$C=35$

now, we can plug it back

$v(t)=9.8t+35$

we know that

integral of velocity is height

we can integrate it again

$\int \:v\left(t\right)dt=\int \:\left(9.8t+35\right)dt$

$s(t)=\int \:\left(9.8t+35\right)dt$

$s(t)=4.9t^2+35t+C$

now, we have

s(0)=6

we can use it and find C

$s(0)=4.9(0)^2+35(0)+C$

$6=4.9(0)^2+35(0)+C$

now, we can plug back C

$C=6$

and we get

$s(t)=4.9t^2+35t+6$ .............Answer

4 0

4 years ago

Read 2 more answers

Evaluate the expression 3^4 ÷ (14 − 5) × 2.

gavmur [86]

Answer:

18

Step-by-step explanation:

3^4=9*9=81

14-5=9

81/9=9

9*2=18

8 0

3 years ago

Read 2 more answers