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3 years ago

3n+(-7)= -1need to know what n equals to

Mathematics

2 answers:

ch4aika [34]3 years ago

7 0

Answer:N=2

Step-by-step explanation:

3n+(-7)=-1

3n-7=-1

3n=-1+7

3n/3=6/3

n=2

amm18123 years ago

6 0

Answer:n=2

Step-by-step explanation:you add +7 on both sides and than divide 3 on both sides

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What is the height of an iscocles trapizoid, if the lengths of its bases are 5m and 11m and the length of a leg is 4m?

dsp73

Answer:

x=√5

Step-by-step explanation:

Use the pythagorean theorem

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3 years ago

What is the equation of this line? A: y=-3/2x B: y=2/3x C: y=-2/3x D: y=3/2x

creativ13 [48]

Answer:

b) y = 2/3x

Step-by-step explanation:

Slope (m) formula: $\frac{y_2-y_1}{x_2-x_1}$

I will be using (3,2) and (-3,-2) to find the slope:

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Hope this helps!

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2 years ago

Which statement correctly compares the function shown on this graph with the function y=6x-1

zavuch27 [327]

Answer:

Step-by-step explanation:

The function shown on the graph is y = 5x - 6 and it is being comapred to y = 6x - 1. The function shown on the graph has a smaller rate of change because 5x < 6x. The starting point of the function shown on the graph is also lower since - 6 < - 1.

4 0

3 years ago

Read 2 more answers

Select the correct answer.

Hitman42 [59]

Answer:

See explanation

Step-by-step explanation:

The question is incomplete, as the function is not given. So, I will make an assumption.

A quadratic function is represented as:

$f(x) = ax^2 + bx + c$

If $a > 0$ , then the function has a minimum x value

E.g. $f(x) = 4x^2 - 5x + 8$ ------ $4 > 0$

Else, then the function has a maximum x value

E.g. $f(x)= -4x^2 -5x + 8$ ---- $-4 < 0$

The maximum or minimum x value is calculated using:

$x = -\frac{b}{2a}$

For instance, the maximum of $f(x)= -4x^2 -5x + 8$ is:

$x = -\frac{-5}{2*-4}$

$x = -\frac{5}{8}$

So, the maximum of the function is:

$f(x)= -4x^2 -5x + 8$

$f(-\frac{5}{8}) = -4 * (-\frac{5}{8})^2 - 5 *(-\frac{5}{8}) +8$

$f(-\frac{5}{8}) = 9.5625$

8 0

3 years ago

In Lucille’s class, 35% of the students have blond hair. There are 20 students in the class. How many students have blond hair.

MrRissso [65]

Answer:

7 the answer is 7

Step-by-step explanation:

1. We assume, that the number 20 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 20 is 100%, so we can write it down as 20=100%.

4. We know, that x is 35% of the output value, so we can write it down as x=35%.

5. Now we have two simple equations:

1) 20=100%

2) x=35%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

20/x=100%/35%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 35% of 20

20/x=100/35

(20/x)*x=(100/35)*x -

20=2.85714285714*x -

20/2.85714285714=x

7=x

x=7

now we have:

35% of 20=7

we multiply both sides by x

then we divide both sides by 2.85714285714 to get x

3 0

4 years ago

Read 2 more answers

3n+(-7)= -1need to know what n equals to​

3n+(-7)= -1need to know what n equals to