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2 years ago

What is the value of the discriminant for the quadratic equation –3 = –x2 + 2x?

Mathematics

2 answers:

Reptile [31]2 years ago

3 0

Answer:

-8

Step-by-step explanation:

●Answer attached●

☆Hope it helps☆

Hitman42 [59]2 years ago

3 0

Answer:

its option one

Step-by-step explanation:

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The table shows how many books the students in Bergdalsskolan list during the summer. There were 48 students who list 4 books. a

Juliette [100K]

Step 1:

First, find the total number of students.

Let the total number of students = m

Step 2:

Find the total number of students using the percentage of 4 books.

48 students listed 4 books with a percentage of 16%

$\begin{gathered} 48\text{ = 16\% of m} \\ 48\text{ = }\frac{16}{100}\text{ }\times\text{ m} \\ 48\text{ = }\frac{16m}{100} \\ \text{Cross multiply} \\ 16m\text{ = 48 }\times\text{ 100} \\ 16m\text{ = 4800} \\ \text{m = }\frac{4800}{16} \\ \text{m = 300} \end{gathered}$

Hence, there are 300 students.

$\begin{gathered} \text{Number of students that had 1 book = 24\% of 300} \\ =\text{ }\frac{24}{100}\text{ }\times\text{ 300} \\ =\text{ }\frac{7200}{100} \\ =\text{ 72 students} \end{gathered}$

72 students had 1 book.

b) What percentage more read 2 books than 4 books?

percentage that read 2 books = 36%

percentage that read 4 books = 16%

36 - 16 = 20%

There are 20% students that read 2 books than 4 books.

8 0

1 year ago

-0.06m = 7.2 what is m?

Nata [24]

-0.06m=7.2
-0.06m/-0.06 = 7.2/-0.06
m = -120

3 0

2 years ago

Read 2 more answers

How to rewrite equation 5x+7y-35=0 in slope intercept form?<br>

tino4ka555 [31]

Y equals 5 over 7x minus 5

3 0

2 years ago

Please Help!!<br><br> What should be done 10x ^ 2 - 8x to create a perfect square ?

Pani-rosa [81]

Answer: 10x^2-8x+16

Step-by-step explanation:

Use the formula (b/2)^2

then plug in values:

(-8/2)^2 = -4^2 = 16

ans: 10x^2-8x+16

hope this helps

4 0

1 year ago

I would love if you could answer very soon

UkoKoshka [18]

Answer:

Step-by-step explanation: you have t do y plus 10 and then add 4 minus -2

6 0

2 years ago