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3 years ago

Select the graph of the solution. Click until the correct graph appears. pls help x < 4

Mathematics

1 answer:

Ray Of Light [21]3 years ago

3 0

Answer:

The correct one is the one on the left.

(the arrow pointing to the left)

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suppose there are 20 questions on a multippe choice. if 25% of the answers are choice B how many , how many of the answers are n

tiny-mole [99]

15 questions
25/100=1/4
1/4 = x/20
1*20=20
20/4 = 5
20-5= 15

5 0

4 years ago

Read 2 more answers

Use the change of base rule to find the logarithm to four decimal places

Bond [772]

Answer:

1.7059

Step-by-step explanation:

$\log_{9}{(42.45)}=\dfrac{\log{(42.45)}}{\log{(9)}}\approx\dfrac{1.62788}{0.954243}\\\\\approx 1.7059$

6 0

4 years ago

Find the slope(m) and y-intercept (b) of each representation below.

Anika [276]

<h3>Answer:</h3>

m= 15

b= 45

y= 15x +45

<h3>Concept:</h3>

<u>Overall equation</u>

The equation of a line in slope-intercept form is given by y= mx +b, where m is the slope and b is the y-intercept.

<u>Slope, m</u>

The slope is the measure of how steep the line is. It also defines how the y-axis changes with respect to the x-axis. The formula for finding slope is as shown below.

$\boxed{\text{Slope}=\frac{y_1-y_2}{x_1-x_2} }$

where $(x_1,y_1)$ is the first coordinate and $(x_2,y_2)$ is the second coordinate

<u>y-intercept, b</u>

This is the y-value in which the line cuts through the y-axis (vertical axis).

<h3>Working:</h3>

<u>Slope, m</u>

Let's identify two pairs of coordinates on the line.

2 square units on the y-axis represent $30. Thus, 1 unit on the y-axis represents $15.

The 2 points are: (0, 45) and (5, 120)

Substitute the 2 points into the slope formula:

Slope

= $\frac{120-45}{5-0}$

<em>= </em> $\frac{75}{5}$

= 15

Thus, m= 15.

<u>y-intercept, b</u>

From the graph, the line cuts through the y-axis at y= 45.

Thus, b= 45.

<u>Overall equation</u>

Substitute m= 15 & b= 45 into y= mx +b:

∴ The equation of the line is y= 15x +45.

<h3>Additional:</h3>

To learn more about slope-intercept form, do check out: brainly.com/question/26351470

6 0

1 year ago

Select the correct answer.

Marta_Voda [28]

Remember x is x and f(x) is same thing as y.

f(5) = 4

It is same thing as saying, when x = 5, y aka f(x) should be 4. Aka the point (5,4)

Let’s look at D, if x =5 then f(x)=5? No, it should equal 4. So this is wrong. It is also not linear. So NOT D

Lets look at C, if x =5 then
1/5(5)+3 =
5/5 + 3 =
1+3 =
4

So, f(x) aka y = 4. Is this correct? Yes when x =5, y indeed should equal 4, but it is not linear. So NOT C

Lets look at B, if x=5 then,
2^5 -28 =
32 - 28 =
4

So, f(x) aka y = 4. Is this correct? Yes when x =5, y indeed should equal 4, AND it is linear SO THE ANSWER IS B

Check A too, it gets y=14 so thats wrong as it is not 4.

5 0

2 years ago

How many solutions does this equation have?

drek231 [11]

The answer is infinitely many solutions because 0 = 0.

If you don't seem to see where I got 0 = 0, look at the equation,

4b – 4b = 0

first lets do the math on the left side.

4b - 4b is equal to 0.

so lets put 0 on the left side, now lets look at the equation all together,

0 = 0,

and this means that it has infinitely many solutions.

The reason why it is not no solution because no solution means when there are no answers to the equation. For example, the solution is not true, such as the equation 24 ≠ 29. This is a no solution equation. One solution can be 4x = 20, as x = 5, concluding it being one solutions.

5 0

3 years ago