A construction worker drops a hammer while building the Grand Canyon skywalk 4,000ft above the Colorado River. Use the formula t=h−−√4 to find how many seconds it takes for the hammer to reach the river. Round your answer to the nearest tenth of a second.

Answer:

c

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

there are less people to answer so it wouldn't be enough

Answer:

4 option...... .......

Answer:

no es un elemento de la tabla periódica

Step-by-step explanation:

area of trapezium = 15× 12 + 1/2× 12× 5

= 180 + 30 = 210

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you .

Answer:

[tex]77 {m}^{2} [/tex]

Step-by-step explanation:

Given,

Height of the parallelogram = 7m

Base of the parallelogram = 11 m

Therefore, area of the parallelogram = b × h

= 7m × 11m

[tex]77 {m}^{2} (ans)[/tex]

Answer:

Slope = 2

Step-by-step explanation:

Find the slope by using the slope equation:

[tex]\frac{y^2 - y^1}{x^2 - x^1}[/tex]

Plug in the numbers to the slope equation:

[tex]\frac{8 - (-8)}{2 - (-6)}[/tex]

Which is equal to:

[tex]\frac{16}{8}[/tex]

Which is simplified to:

2.

Answer:

Step-by-step explanation:

y = x^2

X increased by 10% = 1.10x

(1.10x)^2 = 1.21x^2

y increases by 21%

-34/7 is the exact form -4.857142 repeating

Si tiene 80 cm de altura mier 800 milímetros de altura

Answer:

7% interest = $10000

13% interest = $20000

Step-by-step explanation:

Let the amount invested at 7% interest be x.

Let the amount invested at 13% interest be y.

Thus;

x + y = 30000 - - - (eq 1)

We want to find out how much Paul needs to invest in each option to make a total 11% return on his $30,000.

Thus;

0.07x + 0.13y = 0.11(30000)

Multiply through by 100 to get rid of the decimal;

7x + 13y = 0.11(30000 × 100).

7x + 13y = 330000 - - - (eq 2)

From eq 1, x = 30000 - y

Put this for x in eq 2 to get;

7(30000 - y) + 13y = 330000

210000 - 7y + 13y = 330000

6y = 330000 - 210000

6y = 120000

y = 120000/6

y = $20000

x = 30000 - 20000

x = $10000

Thus;

Amount invested at;

7% interest = $10000

13% interest = $20000

Answer:

3

Step-by-step explanation:

the answer is 3, you can also search up the answers on the internet or use an online calculator

Answer: Decimals are of different types based on the numbers that come after the decimal point. These types are terminating decimal numbers, non-terminating repeating decimals, recurring decimal numbers, and non-recurring decimal Numbers. The answer is 3, you can also search up the answers on the internet or use a calculator.

Answer:

I think its (7,-4)

Step-by-step explanation:

solve x:

plug in y

-x+3=-3x+17

solve

x=7

solve y:

plug in what you got for x

y=-3(7)+17

solve

y=-4

Given, to find A we have to :

From the question, the following equation can be formed :

[tex] =\tt A = {m}^{2} + y - 7[/tex]

Therefore, the formula for finding A = m² + y - 7

The value of A we can derive from the formula is :

[tex] =\tt A = {m}^{2} + y - 7[/tex]

Value of m = 3 (given)

Which means :

[tex] =\tt A = {3}^{2} + y - 7[/tex]

[tex] =\tt \: A = 9 + y - 7[/tex]

[tex] =\tt A = 9 - 7 + y[/tex]

[tex]\color{plum} =\tt A = 2 + y[/tex]

Thus, the value of A = 2+y

Therefore, the value of A = 2+y

Answer:

60

Step-by-step explanation:

There are sixty students.

15%   =   9

------------------

100% =  x

Cross muliply.

900

------

15x

Divide 15x by 15, and 900 by 15.

Answer is 60.

I hope this helps!

Brainliest would be awesome!

Answer:

9 cows, 15 chicken

Step-by-step explanation:

9 x 4 = 36

15 x 2 = 30

9 + 15 = 24

36 + 30 = 66

Answer:

30

Step-by-step explanation:

78-48=30

78-48=30 es la respuesta

Answer:

It would be .31 cents, I believe

Step-by-step explanation:

Just divide 31 by 100 and you'll get your answer.

:)

Answer:

x = 134/7

y = 69/7

Step-by-step explanation:

let the x or y have a same coefficient to have a better way to solve it

Answer:

Y = 6X-5

Step-by-step explanation:

substitute the value of slope and Y intercept in the standard equation Y = MX + B

where M is the slope and b is the y-intercept

Answer:

x = 3

Step-by-step explanation:

Add 1 on both sides.

We get:

-2x = -6

Now divide -6 by -2...

-6/-2 = 3

-2x -1 = -7

add the "-1" on both sides, -2x -1 +1 = -7 +1

-2x = -6

divide "-2" on both sides, -2x/-2 = -6/-2

x = 3

The number N whose forty percent is 240 is 600, or we say that 40% of 600 is 240

Suppose the value of which a thing is expressed in percentage is "a'

Suppose the percent that considered thing is of "a" is b%

Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

Thus, that thing in number is

[tex]\dfrac{a}{100} \times b[/tex]

For this case, we are specified that:

40% of N = 240

Since 40% of N is [tex]\dfrac{N}{100} \times 40[/tex], thus, we get

[tex]\dfrac{N}{100} \times 40 = 240[/tex] (as they both are same quantity, ie. 40% of N)

Now, solving it further to get value of N:

[tex]\dfrac{N}{100} \times 40 = 240\\\\\text{Multiplying 100 on both the sides}\\\\N \times 40 = 24000\\\\\text{Dividing both the sides by 40}\\\\N = 24000/40 = 600[/tex]

Thus,  40% of 600 is 240 or we say that the number N whose forty percent is 240 is 600

Learn more about percent here:

https://brainly.com/question/11549320

Answer:

Let the 'cart' total is x and total payment is y.

The sales tax is 5.6% added to the 'cart' amount and then shipping and handling fee added.

There are three intervals as below and function added accordingly:

y = 89.20, this is close to the number we got in part B and we assume it is same - the middle interval.

-----------------------------------------

Answer:

D. 1/11.

Step-by-step explanation:

There are 12 pencils in the case.

Prob( first one is sharpened) = 4/12 = 1/3

Prob(second is sharpened) = 3/11

Prob(both sharpened) = 1/3 * 3/11

= 3/33

= 1/11.

The probability is 1/11 that both pencils will be sharpened which is the correct option(D).

The probability is defined as the possibility of an event being equal to the ratio of the number of outcomes and the total number of outcomes.

Given that,

Bonnie has 4 sharpened and 8 unsharpened pencils

So, there is a total of 12 pencils in the pencil case.

Let, the probability first one is sharpened is P(E₁)

The probability second one is sharpened is P(E₂)

P(E₁) = 4/12 = 1/3

P(E₂) = 3/11

Required probability both sharpened P(E) = P(E₁)×P(E₂)

Required probability both sharpened P(E) = 1/3 × 3/11

Required probability both sharpened P(E) = 3/33

Required probability both sharpened P(E) = 1/11.

Hence, the probability is 1/11 that both pencils will be sharpened.

Learn more about probability here:

brainly.com/question/11234923

#SPJ2

Answer:

60

Step-by-step explanation:

because angles in a triangle =180

so if angle b and c are 60 angle a will be

a = 180- 60- 60

angle a =60°

Answer:

Carbon

Step-by-step explanation:

When the power of 10 is negative, the less the exponent the bigger the number

Answer:

Step-by-step explanation:

the larger number is 1.995x10^-23

Answer:

A

Step-by-step explanation:

Answer:

I would need to see a coordinate plane in order to answer. Sorry

Step-by-step explanation:

Answer:

A polynomial is writen as:

p(x) = aₙ*xⁿ + ... + a₂*x² + a₁*x¹ + a₀

So we can only have positive integer exponents of x.

the coefficients "a" can be any real number.

Let's analyze the options:

1) Here we can see a term with "√x", remember that:

√x = (x)^(1/2)

This is not an integer exponent, then this is not a polynomial.

2) This is a polynomial.

3) Here we have the term "4/x"

This can be written as:

4/x = 4*x^(-1)

Then this is not a polynomial.

4) Here we have the term "5^x"

In a polynomial we must have powers of x, not x as a power, then this is not a polynomial.

5) This is a polynomial.

6) Here we have the term " 2/x^2"

This can be written as:

2/x^2 = 2*x^(-2)

We have a negative exponent of x, then this is not a polynomial.