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3 years ago

When X =10, the ??? Of the expression 4x is 40

1 answer:

3 0

When x=10, the product of the expression 4x is 40

Product is defined to be the result of the multiplication. If we multiply the value of the x (which is 10) by 4 the result (called the product) will be equal to 40.

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Could someone please help me? Thank you and explain the work because I don’t get this

lesya [120]

Answer:

5.59 times per second.

Step-by-step explanation:

Direct variation is in the form:

$y=kx$

Where k is the constant of variation.

Inverse variation is in the form:

$\displaystyle y=\frac{k}{x}$

In the given problem, the frequency of a vibrating guitar string varies inversely as its length. In other words, using f for frequency and l for length:

$\displaystyle f=\frac{k}{\ell}$

We can solve for the constant of variation. We know that the frequency f is 4.3 when the length is 0.65 meters long. Thus:

$\displaystyle 4.3=\frac{k}{0.65}$

Solve for k:

$k=4.3(0.65)=2.795$

So, our equation becomes:

$\displaystyle f=\frac{2.795}{\ell}$

Then when the length is 0.5 meters, the frequency will be:

$\displaystyle f=\frac{2.795}{.5}=5.59\text{ times per second.}$

5 0

3 years ago

Suppose you earned 8t-3 on monday and 6t+5 dollars on tuesday. what were your total earnings? simplify your answer

Nadusha1986 [10]

Let
A=8t-3
B=6t+5

we know that
total earnings=A+B
so
total earnings=(8t-3)+(6t+5)------> (8t+6t)+(-3+5)------> (14t+2) dollars

the answer is
(14t+2) dollars

6 0

2 years ago

What is the standard value of 110 units

Alexeev081 [22]

Answer:

Hundreds.

Step-by-step explanation:

There are 3 digits. And the decimal is after the value of 110.

7 0

2 years ago

Recall that a right triangle is a triangle with one right angle. One angle of a triangle measures 89.99°. Can the triangle be a

Anastasy [175]

Yes because the right triangle has a right angle which will equal to 90° you can place 89.99 to the nearest whole number which will give you a right angle.

7 0

3 years ago

Urgent help needed. Will mark you brainlest when correct

posledela

Question 7: Option (4)

$A=(3/8)^2=\frac{9}{64}$