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Crank
2 years ago
10

What is the discriminant of the quadratic equation 0 = 2x2 + 3x - 5?

Mathematics
2 answers:
ycow [4]2 years ago
5 0

Answer:

0=4+3x-5 calculate

0=-1×3x move variable to the left

-3x=-1 divide both sides by -3

x=1 over 3

VikaD [51]2 years ago
3 0

Answer:

49 wich is D

Step-by-step explanation:

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Please help!!! It'd be awesome if you could show a step-by-step thank you!!! I am voting brainly
Kazeer [188]

Answer:

77.75%

Step-by-step explanation:

We just have to find the sums of the product of Joey's averages and their contribution to the total grade.

Test: 0.45 * 0.8 = 0.36 = 36%

Quizzes: 0.3 * 0.85 = 0.255 = 25.5%

Homework: 0.25 * 0.65 = 0.1625 = 16.25%

Total: 36% + 25.5% + 16.25% = 77.75%

4 0
3 years ago
During a musical an orchestra is playing. As the music plays, the volume changes in the beginning of the piece can be modeled by
Alja [10]

Answer:

The numbers of measure of music played are 1 and 7

Step-by-step explanation:

Given

s = 10|x - 4| + 50

Required

Solve for x when s = 80

Substitute 80 for x

80 = 10|x - 4| + 50

Subtract 50 from both sides

80 - 50= 10|x - 4| + 50 - 50

30= 10|x - 4|

Divide through by 10

\frac{30}{10}= \frac{10|x - 4| }{10}

3= |x - 4|

Reorder

|x - 4| = 3

This can be split into

x - 4 = 3 or x - 4 = -3

Solve for x

x = 4 + 3 or x = 4 - 3

x = 7 or x = 1

Hence:

<em>The numbers of measure of music played are 1 and 7</em>

4 0
3 years ago
If both the numerator and denominator of 48/64 are divided by 8, the fraction will be in lowest terms. True False
Licemer1 [7]
If 48/64 are both divided by 8 you would get 6/8! these can still be reduced to 3/4, So FALSE!
4 0
3 years ago
Read 2 more answers
A cafeteria sells 6 times as many bottles of juice. if the cafeteria sells 750 bottles of water. how many bottles of juice did t
faltersainse [42]

Answer:

<h2>4,500 bottles of juice.</h2>

Step-by-step explanation:

<h3>Clue word: Times means multiply</h3><h3>If you multiply 750 x 6 you will get 4,500.</h3>
5 0
2 years ago
Anyone needs help on circumference or area of a circle?
riadik2000 [5.3K]
No circumference of a circle is very easy to me
5 0
3 years ago
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