Answer:
<u>The correct answer is A. x = - 9</u>
Step-by-step explanation:
Let's solve the equation:
5x + 8 − 3x = −10
5x - 3x = - 10 - 8
2x = - 18
<u>x = - 9 (Dividing by 2 at both sides of the equation)</u>
Now let's prove the answer is correct, replacing x with - 9.
5x + 8 − 3x = −10
5 (-9) + 8 - 3 (-9) = - 10
-45 +8 - 27 = - 10
-45 + 35 = - 10
-10 = - 10
<u>It has proven the value of x = - 9 is correct</u>
<u>The correct answer is A. x = - 9</u>
Answer:
(-♾, ♾)
Step-by-step explanation:
A quadratic can accept any real x value. So the domain is All Real Numbers. This in interval notation is
(-♾, ♾)
This is read as negative infinity to positive infinity
The answer is
A,B
Explanation
Because the square root of A is 4 and the square root of B is 5
The square root of C is 11.1803398875 and the square root of D is 14.6969384567.
Therefore A,B are perfect squares
As we multiply the matrices on the left-hand side,we have;
x+3y=5---eq1
x+4y=6---eq2
eq1-eq2
-y=-1
y =1
Subsitution of y=1 in eq1,
x+3(1)=5
x+3=5
x=5-3
x=2
The values of is 2 and r are -1 of the geometric series and it can be determined by using geometric summation operation.
Given that,
The geometric series is,
2 – 2 + 2 – 2 + 2
We have to determine
What are the values of a1 and r of the geometric series?
According to the question,
<h2>
Geometric series;</h2>
2 – 2 + 2 – 2 + 2
The geometric series is the first term of the geometric sequence and r is the common ratio of the geometric series.
The first term of the given geometric series is 2.
And the common difference in the given geometric series is,
Where is the first term of the geometric sequence and is the second term of the geometric sequence.
Then,
The common difference in the given geometric series is,
The common ratio in the given geometric series is -1.
Hence, the values of is 2 and r is -1 of the geometric series
For more details about Geometric progression refer to the link given below.
brainly.com/question/25959517