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il63 [147K]
3 years ago
5

X^2+2x+5=0 solve for X

Mathematics
1 answer:
Oksana_A [137]3 years ago
7 0
Is it no real solutions?
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okay so we have this question of the week thing and this week our answer is 47 so i need a algebra problem that equals 47 can so
mestny [16]

Answer: 5 times 5 plus 11 plus 11

Step-by-step explanation:

Creating an algebra problem that equals to 47.

5 times 5 is 25

25 plus 11 is 36

36 plus 11 is 47

6 0
3 years ago
Read 2 more answers
Kenny had 5/7 more trading cards than lee. After Kenny collected 50% more trading cards, he had 220 more trading cards than lee.
svp [43]

Answer:

Step-by-step explanation:

Let X is the number of cards Kenny has

Let Y is the number of cards Lee has

1. Kenny had 5/7 more trading cards than lee, it means

X = Y + 5/7X (1)

2. After Kenny collected 50% more trading cards, he had 220 more trading cards than lee, it means:

X + 50%X = Y +  220 (2)

So, we solve the 2 equations to find out X and Y

\left \{ {{X=Y + 5/7X} \atop {1.5X=Y +220}} \right.

<=> X = \frac{3080}{17} and Y = \frac{880}{17}

<=> X ≈181 and Y ≈ 52

6 0
3 years ago
be rectangular prism and rectangular pyramid have the same volume. determine the value of x, the height of the pyramid.
Marina CMI [18]
ANSWER

x= 9 \: in

EXPLANATION

The volume of a rectangular prism is given by the formula,

V = l \times b \times h
We substitute the dimensions to obtain,

V = 6 \times 3 \times 12 \: {in}^{3}

The volume of the rectangular pyramid is,

V = \frac{1}{3} \times 6 \times 12 \times x \: {in}^{3}

Equating the two volumes gives,

\frac{1}{3} \times 6 \times 12 \times x = 6 \times 3 \times 12

We divide through by 6×12 to get,

\frac{x}{3}=3

We solve for x to obtain,

x = 3 \times 3

x = 9 \: in
7 0
3 years ago
The grades of a science test are normally distributed. Thanh finds that his grade on the test has a z-score of –2.5. Which state
liraira [26]
From all those aforementioned, the true statement is: Thanh’s grade is 2.5 standard deviations below the mean of the test grades. 
7 0
3 years ago
Read 2 more answers
What is 6 2/5 - 4 1/3
DaniilM [7]

Answer:

31/15 or 2 1/15

Step-by-step explanation:

The common denominator is 15. Convert both to an improper fraction and simplify.

3 0
2 years ago
Read 2 more answers
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