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3 years ago

Solve 7x-c=k for x ...........

Mathematics

1 answer:

inna [77]3 years ago

8 0

Answer:

The value of x in given question will be $x=\frac{k+c}{7}$

Step-by-step explanation:

Given data:

7x-c=k

Now,

7x-c=K

7x=K+c

$x=\frac{k+c}{7}$

Therefore,

The value of x in given question will be : k+c/7

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Pierre has 6 wires that are each 4/5 of a meter long. What is the total of the length of wire the he has?

abruzzese [7]

Answer:

4.8

Step-by-step explanation:

if you multiply 0.8 by 6, you get 4.8

6 0

3 years ago

Read 2 more answers

Let f(x) = cxe−x2 if x ≥ 0 and f(x) = 0 if x < 0. For what value of c is f a probability density function? for that value of

Yuliya22 [10]

The value of c such that the function f is a probability density function is 2

<h3>How to determine the value of c?</h3>

The density function is given as:

f(x) = cxe^(−x^2) if x ≥ 0

f(x) = 0 if x < 0.

We start by integrating the function f(x)

∫f(x) = 1

This gives

∫ cxe^(−x^2) = 1

Next, we integrate the function using a graphing calculator.

From the graphing calculator, we have:

c/2 * (0 + 1) = 1

Evaluate the sum

c/2 * 1 = 1

Evaluate the product

c/2 = 1

Multiply both sides of the equation by 2

c = 2

Hence, the value of c such that the function f is a probability density function is 2

Read more about probability density function at

brainly.com/question/15714810

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8 0

2 years ago

If ms.li has 8/11 shirts that are white. 16 are white. how many shirts does she have in all

faust18 [17]

Answer:

22 shirts

Step-by-step explanation:

To find out how many shirts Ms. Li has in total, we have to set up a proportion.

$\frac{8}{11} =\frac{16}{x}$ .

As you can see, we multiply eight by two to get to sixteen. Whatever we do on the numerators, we must do to the denominators. Thus, eleven multiplied by two is twenty-two t-shirts.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

6 0

3 years ago

A cell tower has the hieght of 70 meters. The Tower casts a shadow of 45 meters on the ground. What is the angle of elevation of

laiz [17]

Answer:

$\theta=0.99^{\circ}$

Step-by-step explanation:

Given that,

The height of a cell tower, P = 70 m

The tower casts a shadow of 45 meters on the ground.

We need to find the angle of elevation of the shadow to the top of the cell tower. We can use trigonometry to find it.

$\tan\theta=\dfrac{P}{B}$

Put all the values,

$\tan\theta=\dfrac{70}{45}\\\\\theta=\tan^{-1}\left(\frac{70}{45}\right)\\\\\theta=0.99^{\circ}$

Hence, the angle of elevation is equal to $0.99^{\circ}$ .

4 0

3 years ago

Marie and Jorge are both trying to lose weight. After 3 months they compared their weight loss. Marie’s weight went from 175 to

lina2011 [118]

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The answer to this is:

Jorge's weight percent decrease is (190-180)÷190, or amount of change/original amount. Simplified, 10 ÷ 190 = 5.2637157894...%, approximately equal to 5%. The first option is correct. Marie's percent decrease is (175-150)÷175. Simplified, that is 25÷175 = 14.2857142857...%, which is about 14%. The second option is correct. Clearly, we can tell that Marie had the greater percent change, about 14% to about 5%. Also clearly, Jorge did not have the greater percent change, so we can tell Option 4 is wrong. We already know that Jorge's change is about 5% and Marie's is about 14%, so they can't be about 0.5% or about 1.4%. Options 5 and 6 are incorrect. The correct answers are 1, 2, and 3.

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7 0

4 years ago