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Lisa [10]
3 years ago
15

. 1. Find the value or values of y in the quadratic equation y2 + 4y

Mathematics
2 answers:
rodikova [14]3 years ago
8 0
I believe that the answer is 6y
BARSIC [14]3 years ago
6 0
That the answer, I hope that will help you

You might be interested in
Simplify the following expression. (10-4i)(4-5i)+(-15+20i)
Vikki [24]

Answer:

5-46i

Step-by-step explanation:

1. Multiply (10-4i) and (4-5i), I recomnd using foil:

40-50i-16+20i^2 + (-15+20i)

2. Remove the parenthesis around -15+20i

*we can do this since there is a "+":    

40-50i-16+20i^2 + (-15)+20

3. Simplify i^2

* i^2 is -1 by textbook defination:

40-50i-16+20(-1) + (-15)+20

4. Simplify

40-50i-16-20 + (-15)+20

6. Combine like terms:

-5-50i-16i+20i

5-46i

And the problem is done

3 0
3 years ago
Write an equation of a line parallel to line GH below in slope-intercept form that passes through the point (−5, 6). Line GH is
telo118 [61]
Answer:
y = x + 11

Explanation:
The general form of an equation is:
y = mx+c
where:
m is the slope
c is the y-intercept
1- getting the slope:
We are given that the line is parallel to GH. This means that:
slope of the line = slope of GH
We have G as (-2,2) and H as (2,6)
slope of GH = (y2-y1) / (x2-x2)
slope of GH = (6-2) / (2--2) = 1
slope of line = slope of GH =1 
Therefore, the equation on the line now becomes:
y = x + c
2- getting the y-intercept:
We are given that point (-5,6) passes through the line. This means that this point satisfies the equation of the line. So, we will substitute with this point in the equation and solve for c as follows:
y = x + c
6 = -5 + c
c = 6_5
c = 11

Based on the above, the equation of the line is:
y = x + 11

Hope this helps :)
7 0
3 years ago
Please help: Find the volume of the solid. Use 3.14 for π.
Kazeer [188]

Answer:

The volume of the solid is 420m³

Step-by-step explanation:

The area of any pyramid is "1/3 · B · h", where B is the area of the base, and h is the height.

Knowing this we just need to solve for a couple of things.

First, and the easiest is the height of the triangle which (thankfully) is given to us. The height is 15m, which plus one number into our equation.

1/3 · B · 15

Second, we need to find the area of the base of the pyramid. That's done easily by finding the area of a triangle ( \frac{base * height}{2} → \frac{24*7}{2} → \frac{168}{2} → 84) giving us 84 units. This puts another number into our equation.

1/3 · 84 · 15

Now that we have all of the parts to our equation, we can solve it.

1/3 · 84 · 15

1/3 · 1260

420

The volume of the solid is 420m³

6 0
3 years ago
It snowed 134.46 inches on Monday and 8.3 inches on Tuesday. How much did it snow on Monday and Tuesday combined?
kkurt [141]

Answer

142.76

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
This is a value of the variable that makes the equation a true statement
Ratling [72]
That would be called the solution
5 0
3 years ago
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