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BARSIC [14]
3 years ago
12

A - 6 - 6a = 4 find the value of a

Mathematics
2 answers:
DaniilM [7]3 years ago
8 0

Answer:

-2

Step-by-step explanation:

a - 6 - 6a = 4

a-6a=10

-5a=10

a=10/-5

a=-2

Alexus [3.1K]3 years ago
7 0

Answer:

a = -2

Step-by-step explanation:

Add like terms:

a - 6 - 6a = 4

-5a - 6 = 4

Solve for a:

-5a = 10

a = -2

So, a = -2

You might be interested in
SV−→bisects ∠RST. If m∠RSV = 64, what is m∠RST?
Anuta_ua [19.1K]

Given:

\overrightarrow{SV} bisects ∠RST.

m\angle RSV=64^\circ

To find:

The m\angle RST.

Solution:

Since, \overrightarrow{SV} bisects ∠RST, therefore

m\angle RSV=m\angle VST         ...(1)

Now,

m\angle RST=m\angle RSV+m\angle VST

m\angle RST=m\angle RSV+m\angle RSV         [Using (1)]

m\angle RST=2\times m\angle RSV

m\angle RST=2\times 64^\circ              [\text{Given }m\angle RSV=64^\circ]

m\angle RST=128^\circ

Therefore, the value of m\angle RST is 128^\circ.

5 0
3 years ago
A high school has 1,500 students. In a random sample of 50 students, 32 own one or more pets. Predict the number of students at
zavuch27 [327]
Hello!

First you have to find the rate between the amount of students surveyed by the total amount

You do this by dividing the total amount of students by the amount of students surveyed

1500 / 50 = 30

We multiply the amount of students that have a pet by this number

32 * 30 = 960

The answer is B)960

Hope this helps!
7 0
3 years ago
P L E A S E H E L P!!!!!!!!!
Nostrana [21]

Answer:

The equation that matches the function shown is option;

C. y = sin\left (\dfrac{1}{2} \cdot x\right)

Step-by-step explanation:

The given graph of the function is a sinusoidal graph

The values of 'x' and 'y' coordinates at the maximum, x-intercept and minimum points are given as follows;

x, {}      y

0    {}   0

π {}       1

2·π   {} 0

3·π {}    -1

4·π {}    0

We note that sin(π/2) = 1, sin(π) = 0 sin(3·π/2) = -1, and sin(4·π/2) = sin(2·π) = 0

Therefore;

y = the sine of half the x-value

Which is presented as follows;

y = sin\left (\dfrac{1}{2} \cdot x\right).

5 0
2 years ago
Use graph to answer question
slamgirl [31]

Answer:

cos(θ) = 3/5

Step-by-step explanation:

We can think of this situation as a triangle rectangle (you can see it in the image below).

Here, we have a triangle rectangle with an angle θ, such that the adjacent cathetus to θ is 3 units long, and the cathetus opposite to θ is 4 units long.

Here we want to find cos(θ).

You should remember:

cos(θ) = (adjacent cathetus)/(hypotenuse)

We already know that the adjacent cathetus is equal to 3.

And for the hypotenuse, we can use the Pythagorean's theorem, which says that the sum of the squares of the cathetus is equal to the square of the hypotenuse, this is:

3^2 + 4^2 = H^2

We can solve this for H, to get:

H = √( 3^2 + 4^2) = √(9 + 16) = √25 = 5

The hypotenuse is 5 units long.

Then we have:

cos(θ) = (adjacent cathetus)/(hypotenuse)

cos(θ) = 3/5

5 0
3 years ago
Which equation could generate the curve in the graph below?y=3x^2-2x+1
4vir4ik [10]
If you are asking what is the graph of y = 3x^2 -2x+1.

Then, the attached file would be the answer.

To check, b^2 - 4(a)(c), for each equation and use these facts:

If b^2 - 4(a)(c) = 0, there is only one real root meaning, the graph touches the x-axis only in one point.

If b^2 - 4ac > 0, there are two real roots meaning, the graph touches the x-axis in two different points.

If b2 - 4ac < 0, there are no real roots then the graph does not touch the x-axis. This would be the case for y = 3x^2 - 2x + 1.
Solution:
(-2)^2 -4(3)(1) = 4 - 12 = -8 < 0 will result in not real roots. 

7 0
3 years ago
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