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emmasim [6.3K]
3 years ago
14

4x2-6x-4=0

Mathematics
1 answer:
Wewaii [24]3 years ago
7 0

Answer:

100

Step-by-step explanation:

discriminant = b^2 - 4ac

here

b = 6, a= 4, c = -4

6^2 -4 •4•-4 = 36 +64 = 100

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Find the equality represented by the graph?
Talja [164]

Answer:

-x+4y

Step-by-step explanation:

Given: graph

To find:the inequality

Solution:

Equation of a line passing through points (x_1,y_1),(x_2,y_2) is given by y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

Take (x_1,y_1)=(0,3),(x_2,y_2)=(4,4)

So,equation of line is evaluated as follows:

y-3=\frac{4-3}{4-0}(x-0)\\ y-3=\frac{x}{4}\\ 4y-12=x\\-x+4y=12

As per the graph,inequality is -x+4y

Here, use sign < and not \leq as line in the graph is dotted that is points on the line are excluded.

4 0
3 years ago
34 POINTS - LOGICAL ANSWERS
Alecsey [184]
These are the answer that I got:

A. <span>That means: "The more it costs, the fewer people you can invite."

B. <span>Amount you can spend = M; You will have to come up with this number -   whatever you think is reasonable.
</span>
C. (C = Cost per person, P = number of people you can invite )

D. You will have two equations. In the first equation, C will be the per-person cost at the first bowling alley. In the second equation, C will be the per-person cost at the second bowling alley.

E. <span>Be sure to think this through. Yes, you will be able to host more guests at the bowling alley with the lowest per-person cost, but is that the only factor you need to consider? What about location? Quality of lanes and bowling equipment? Music? Food? Customer Service? Consider ALL aspects.</span>  You might pick the more expensive bowling alley because you feel would have a better experience, or maybe you don't want to invite lots of people anyway.<span> 

Hope this helps!</span>

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4 0
3 years ago
Some number was divided into 42. This quotient was then multiplied by 8,after which the resulting product was added to 10. Given
AURORKA [14]

Answer:

126

Step-by-step explanation:

In order to find the initial number, we need to create the expression that is being mentioned and solve for the initial value by applying the opposite expressions to isolate the variable.

(((x / 42) * 8) + 10) = 34   ... subtract 10 from both sides

((x / 42) * 8) = 24 ... divide both sides by 8

(x / 42) = 3  ... multiply both sides by 42

x = 126

Finally, we can see that the initial value was 126

5 0
3 years ago
If two angles of a triangle have measures of 42° and 20°, what is the measure of the third angle?
dexar [7]

The other angle would be 118°

The three angles of a triangle must add up to 180°.

3 0
3 years ago
WILL GIVE BRAINLIEST!!!! 50 POINTS!!!
m_a_m_a [10]

Answer:

The answer is C.



5 0
3 years ago
Read 2 more answers
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