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mash [69]
3 years ago
11

Consider the quadratic equation x? = 4x - 5. How many solutions does the equation have? A The equation has one real solution. Th

e equation has two real solutions. The equation has no real solutions. D The number of solutions cannot be determined​
Mathematics
1 answer:
anzhelika [568]3 years ago
4 0

Answer:

{-1, 5} (two real solutions).

Step-by-step explanation:

On the left side we want x^2, not x?

We need to rewrite x? = 4x - 5 in standard form, that is, as a quadratic with x terms in decreasing powers of x:

x^2 - 4x + 5 = 0

This factors easily to (x - 5)(x + 1) = 0.

We let each factor equal zero (0) separately and solve for x:  

{-1, 5} (two real solutions).

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Licemer1 [7]

Answer:

6.0'ft

Step-by-step explanation:

5 x 1.2 = 6

5 feet is how tall it is initially the 1.2 is the original height plus 20%

8 0
3 years ago
Two positive integers have a product of 176. One integer is 5 less than the other integer. Which equation can be used to find th
faust18 [17]
xy=176
y=x-5

\implies x(x-5)=176\implies x^2-5x-176=(x+11)(x-16)=0
\implies x=-11, x=16

Since x>0, we take x=16, which means y=16-5=11.
5 0
3 years ago
Read 2 more answers
Find the Slope and the y- intercept for 5x+5y=-40
zheka24 [161]

Answer:

y-intercept= (0,-8)

slope= -1

Step-by-step explanation:

3 0
2 years ago
Which function has the same graph as x + y = 112 OA x) = -y + 11 OB. f(x) = -x + 11 Oc. x) = x- 11 O D. x) = y-11​
Lera25 [3.4K]

Answer:

B. f(x) = -x + 11

Step-by-step explanation:

First if you rearrange the equation you get f(x) = -x + 11, like this:

x + y = 11

Minus x from both sides

y = -x + 11

F(x) and y are interchangeable so we just put f(x) in

f(x) = -x + 11

Each of the graphs are attached and we see that they are the same!

<em>Hope this helps!!</em>

<em>- Kay</em>

4 0
2 years ago
Camilla has three times as many points as Lynn. Lynn has five
REY [17]

Step-by-step explanation:

l x 3 = c

k + 5 = l

(c + l + k) x 2 = 25

c = 33

l = 11

k = 6

5 0
3 years ago
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