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Soloha48 [4]
3 years ago
10

Solve the equation below for y. 8x+4y=20

Mathematics
2 answers:
stira [4]3 years ago
8 0
4y=20-8x
Y=20-8x/4
Y=5-2x
tia_tia [17]3 years ago
4 0
The final answer is Y= -2x + 5

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What quadrilateral always has 4 congruent angles and opposite sides that are congruent and parellel
Nata [24]
I’m pretty sure it’s a Rectangle or square
5 0
3 years ago
How many 3-coin combinations exist if we can choose from
Alex787 [66]

There are four numbers of 3-coin combinations if we can choose from nickels, dimes, quarters, and half-dollars.

<h3>How to solve probability combinations?</h3>

The coins to select from are nickels, dimes, quarters, and half-dollars;

Thus;

Coins (n) = 4

The number of coin to select is:

Coin (r) = 3

The coin combination is then calculated using:

Combination = ⁴C₃

Apply the combination formula, we have;

Combination = 4

Thus, there are four number 3-coin combinations if we can choose from nickels, dimes, quarters, and half-dollars.

Read more about combinations at; brainly.com/question/4658834

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3 0
2 years ago
What is dh/dx if h(x) = cπ, where c is a constant? Please show work. Will mark the best answer as brainliest.
Svetllana [295]

Answer:

h'(x)=0

Step-by-step explanation:

By definition, the derivative of f(x) is given by:

\displaystyle \frac{dy}{dx}=f'(x)=\lim_{h\rightarrow 0}\frac{f(x+h)-f(x)}{h}

Given h(x)=c\pi, h(x+4) must also be c\pi. Therefore, we have:

\displaystyle h'(x)=\lim_{h\rightarrow 0}\frac{c\pi - c\pi }{h},\\h'(x)=\lim_{h\rightarrow 0}\frac{0}{h}=\boxed{0}

Note that the derivative of a constant is always zero since for f(x)=c, where c is some constant, f(x)=f(x+h) and we obtain c-c in the numerator, yielding a final answer of zero.

4 0
3 years ago
E(7, 3), F(7, -3), and G(-6, -3) are three vertices of rectangle EFGH. What are the coordinates of the fourth vertex, H?
____ [38]

Answer:

D) (-6, 3)

Step-by-step explanation:

In rectangle, the opposite sides are equal and each angle measures 90 degrees.

Therefore, draw the parallel sides and find the vertex of the fourth coordinate.

Here the vertex, H = (-6, 3)

Thank you.

8 0
3 years ago
Read 2 more answers
Deon rolled a susided die 40 times. The number 4, appears 15 times. Find the
dedylja [7]

Answer:

The experimental probability of rolling a 4 in the next trial is \frac{1}{6}.

Step-by-step explanation:

The experimental probability is the ratio of the favorable outcomes to the total number of outcomes.

That is, the probability of an event <em>E</em> is:

P(E)=\frac{n(E)}{N}

Here,

<em>n</em> (E) = favorable outcomes

<em>N</em> = total number of outcomes

It is provided that Deon rolled a six-sided die 40 times.

And in these 40 rolls, the number 4 appeared 15 times.

A six-sided die has an equal probability of landing on any of the six numbers.

The rolling a die is an independent event experiment, i.e. the result of the previous roll does not affect the result of next roll.

Let <em>X</em> = number on the face of the die

Compute the probability of rolling a 4 in the next trial as follows:

P (Rolling a 4) = P (X = 4)

                       =\frac{n(X=4)}{N}\\=\frac{1}{6}\\

Thus, the experimental probability of rolling a 4 in the next trial is \frac{1}{6}.

8 0
4 years ago
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