A system of equations is shown below: 6x - 5y = 5, 3x + 5y = 4. The x-coordinate of the solution to this system of equation is what?Thank you to however can help me with this. I've been having a lot of trouble with this math concept. :)

Answers

Answer 1

Answer: 6x - 5y = 5
3x + 5y = 4

If the left sides are equal to the right sides then if we add left side of first equation to left side of the second one and right side of the first euation to right side of the second one they still would be equal

   6x - 5y = 5
   3x + 5y = 4
   9x +0y = 9
   9x = 9
   x = 1

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How do I simplify this polynomial

Answers

25x^5/5x^2

You need to divide 25 by 5 and subtract the exponent

5x³

I hope that's help:0

Use benchmarks to estimate the sum, difference, or product.3. 15/16 1/6
a. 3
b. 1 1/2
c. 2
d. 1

Answers

my opinion is d/1 okay and i did not understand

PLEASE HELP ME I CANT DO IT IVE TRIED SO MUCHThe formula C=5/9(F-32) expresses the relationship between Fahrenheit temperature F, and Celsius Temperature C. Use the formula to convert the given Fahrenheit to its equivalent temperature in the Celsius scale.

4 degrees F= Degree C

Answers

Answer:

-15.556°C.

Step-by-step explanation:

To convert the given Fahrenheit temperature to its equivalent temperature in the Celsius scale, we can use the formula:

C = (F - 32) / 1.8

Given that the Fahrenheit temperature is 4°F, we can substitute this value into the formula:

C = (4 - 32) / 1.8

Simplifying the equation:

C = (-28) / 1.8

Calculating the value:

C = -15.556°C

bellow.

Step-by-step explanation:

To convert 4 degrees Fahrenheit to its equivalent temperature in Celsius, we can use the given formula:

C = (5/9)(F - 32)

Let's substitute the Fahrenheit value of 4 into the formula:

C = (5/9)(4 - 32)

Now, let's simplify the equation step by step:

1. Subtract 32 from 4:

C = (5/9)(-28)

2. Multiply -28 by 5/9:

C = (-140/9)

Therefore, 4 degrees Fahrenheit is equivalent to approximately -15.6 degrees Celsius.

Find two numbers that have a sum of 77.95 and a difference of 30.61

Answers

let x = the larger number
let y = the smaller number
we can set up a system of equations with this:
x+y=77.95
x-y=30.61
take the second equation:
x-y=30.61
add y to both sides, cancelling it out on the left, and you get:
x=y+30.61
Now, since we know what x equals(not the exact number, though), we can plug it into the first equation so we can solve for y
We take the first equation now:
x+y=77.95
substitute x's value into the equation:
(y+30.61)+y=77.95
then, using the commutative and the associative property of addition, we can switch the order and parentheses around:
(y+y)+30.61=77.95
y+y=2y, so we can simplify the equation to:
2y+30.61=77.95
we subtract 30.61 from both sides:
2y=47.34
divide both sides by 2 to get your smaller number, y:
y=23.67
We can substitute y into the second equation now:
x-y=30.61
x-23.67=30.61
add 23.67 to both sides to get:
x=54.28
So the 2 numbers are 54.28 and 23.67

The answer is:

54.28 and 23.67

Hope this helps!

What does the law of cosines reduce to when dealing with a right triangle? A. The Pythagorean theorem B. The formula for a triangle's area C. The law of sines D. The formula for a triangle's area

Answers

Cosine law formula is:

$a^(2) = b^(2) + c^(2) - 2*b*c*cos(A)$

where A is an angle opposite from side a.
If angle a is 90 degrees that means that cos(90) is 0 which leaves us with
$a^(2) = b^(2) + c^(2)$

This is Pythagoras theorem where a is the hypothesis and b and c are smaller sides of triangle

Answer is A)

Use Pascal’s Triangle to determine the fifth term of the expansion of (x + 3)7

Answers

Answer:

2835x^5.

Step-by-step explanation:

By Binomial Theorem, T(r+1) = nCr * a^(r+1) * b^r.

Term 5 = 7C4 * x^5 * 3^4

= 35 * x^5 * 3^4

= 2835x^5.

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