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Anna11 [10]
3 years ago
15

Which are solutions of x^2 + 5x = 2 check all that apply

Mathematics
2 answers:
Evgen [1.6K]3 years ago
6 0
X= -5/2 + 1/2 square of 33 or x= -5/2 + -1/2 square root of 33
Ivenika [448]3 years ago
3 0

Answer:

Quadratic formula: -5-√33/(under) 2      -5+√33/(under) 2

Using PQ formula: -5/2- √33/2        -5/2+ √33/2

Completing the square: -  √33+5/2                 √33-5/2  

Numbers of real solutions: 2

Step-by-step explanation:

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Rectangle ABCD has vertices at (-7,-2); (1, -2); (1, -8); and (-7, -8) respectively. If GHJK is a similar rectangle where G(2, 5
Gennadij [26K]

Answer:

Points J and K could be located at:

J(2,2)

K(6,2)

Step-by-step explanation:

Consider the vertices have a x and y coordinate:

A: x coordinate=-7  y coordinate=-2

B: x coordinate=1  y coordinate=-2

C: x coordinate=1  y coordinate=-8

D: x coordinate=-7  y coordinate=-8

G: x coordinate=2  y coordinate=5

H: x coordinate=6  y coordinate=5

Then it is possible to calculate the distance between the x and y coordinates:

x coordinate of Vertices AB:

x coordinate of B- x coordinate of A=1-(-7)=8

The distance between A and B is 8

y coordinate of Vertices AC:

y coordinate of A- y coordinate of C=-2-(-8)=6

The distance between A and C is 6

Then we know that the side AB of Rectangle ABCD measures 8 and the side AC, measures 6.

Repeat the analysis  with Rectangle GHJK. In this case, is only possible to calculate the distance with x coordinate.

x coordinate of Vertices GH:

x coordinate of H- x coordinate of G=6-(2)=4

The distance between G and H is 4

We can see that the distance in x of the Rectangle ABCD is 8, and the distance in x of the Rectangle GHJK is 4, it means that <em>the measure of ABCD is twice GHJK.</em>

Then, if the distance in y coordinate of Vertices AC is 6, we could say that the distance in<em> y coordinate of Vertices GJ is 3.</em>

<em />

Points J and K could be located at:

J(2,2)

K(6,2)

3 0
3 years ago
If x = -3, calculate the value of x3 - x (the 3 after the x is meant to be cubed unit)
Ainat [17]
I think the answer would be -24
4 0
3 years ago
Read 2 more answers
Kenny is making sugar cookies for a school bake sale. He has 3 cups of sugar. The recipe calls for
GREYUIT [131]

Answer:

3 batches

Step-by-step explanation:

8 0
3 years ago
Given a bag of 20 marbles containing 8 green, 4 red, 2 blue, and 6 yellow, of a person picks out a single marble from the bag wi
Nesterboy [21]
It’s a 1/5 chance to be red
5 0
3 years ago
Read 2 more answers
What is the distance between the points (−3, −5) and (−3, −7) ?
mario62 [17]

Step-by-step explanation:

d = √(x2-x1)²+(y2-y1)²

d = √(-3-(-3))²+(-7-(-5))²

d = √ 0+(-2)²

d = √4

d = 2 units

5 0
2 years ago
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