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Nata [24]
3 years ago
9

How to write (X+3)(x+5) in a equivalent expression

Mathematics
2 answers:
Blizzard [7]3 years ago
5 0

Answer:

x^2 +8x+15

Step-by-step explanation:

(X+3)(x+5)

FOIL

first  x^2

outer  5x

inner 3x

last  15

Add together

x^2 +5x+3x+15

x^2 +8x+15

Alex Ar [27]3 years ago
5 0

Answer:

Step-by-step explanation:

(x+3)(x+5)=x²+5x+3x+15

x²+8x+15 is equivalent to: (x+3)(x+5)

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Use the elimination method to solve this system.
leva [86]

Answer:

The solution for this system is: x = -1, y = 1

Step-by-step explanation:

The problem states that we have to solve this system by the elimination method

In the elimination method, we transform the system in such a way that one variable can cancel each other. With this, we find the result of the other variable. Then, we can replace the variable we found in any of the equations, and we have the value of the variable that we had initially canceled.

In this problem, we have the following system:

1) -6x + 5y = 1

2) 6x + 4y = -10

If we add equations 1) and 2), the variable x is going to be eliminated

1) + 2)

-6x + 6x + 5y + 4y = 1 - 10

9y = -9

y = \frac{-9}{9}

y = -1

Now, we can replace the value of y in any of the equations, to find x:

I will replace in equation 2)

6x + 4y = -10

6x + 4(-1) = -10

6x = -6

x = \frac{-6}{6}

x = -1

The solution for this system is: x = -1, y = 1

5 0
3 years ago
Evaluate the expression when y=6 and x = 35.<br> x-3y
vredina [299]

Answer:

17

Step-by-step explanation:

Given: y = 6; x + 35

Step 1: Equation

x - 3y            

Step 2: Substitution    

35 - 3(6)      

Step 3: Solving

35 - 18 = 17

Answer:

17

Hope This Helps :)

4 0
3 years ago
Read 2 more answers
Find the x-intercept and write it as an ordered pair 4x-20=5y
STatiana [176]
The x-intercept is (5,0)
5 0
3 years ago
Read 2 more answers
Solve each inequality(x+4)(x-8)≥0
Stolb23 [73]

Answer: x

≤

−

4

or

x

≥

8

Step-by-step explanation:

8 0
2 years ago
Which is the most accurate way to estimate 25% of 53?
Alex Ar [27]
You can calculate them out and check which one is the most accurate

so if one of the choices was 1/3 of 50, then you would do:
1/3 in the calculator (should be 0.333...) times 50

And you can compare it with the EXACT number, which is:
0.25*53=13.25

This way you can test all the options
8 0
3 years ago
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