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allochka39001 [22]
3 years ago
7

I need help for number 2 what is the answer

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
3 0
D is the answer because of Pemdas
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Plzzzzz help will give brain and points!!! Explain why a quadratic equation with a positive discriminant has two real solutions,
NISA [10]

Answer:

The given equation is -2x^2 = -8x + 8

This can be rewritten as 2x^2 - 8x + 8 = 0

Here the value of a =2, b = -8 and c = 8

Discriminant = b^2 - 4ac

Now plug in the above values in the discriminant, we get

= (-8)^2 - 4*2*8

= 64 - 64

= 0

Here the discriminant is 0, so we will get one real root.

The discriminant is equal to 0, which means the equation has one real number solution.

Hope this will helpful.

Thank you.

5 0
3 years ago
Solve #1 pls, I need to find the shortest side, median side, and longest side
Lisa [10]

Answer:

Shortest side = 39 cm.

Median side = 65 cm.

Longest side = 91 cm.

Step-by-step explanation:

The perimeter in total is 195 cm. The ratio of the sides are 3 : 5 : 7.

First, find how much parts there are as a whole, by combining the ratios:

3 + 5 + 7 = 15 parts.

Divide the total of parts from the total measurement:

195/15 = 13

Each part has the measurement of 13 cm.

1 part = 13 cm.

Use the following ratio to solve for each of the sides:

Shortest side: 3

3 x 13 = 39

Shortest side = 39 cm.

Median side: 5

5 x 13 = 65

Median side = 65 cm.

Longest side: 7

7 x 13 = 91

Longest side = 91 cm.

Check. Combine all side measurements together. They should equal 195:

39 + 65 + 91 = 195

(39 + 65) + 91 = 195

(104) + 91 = 195

195 = 195 (True).

~

8 0
3 years ago
Problem
Studentka2010 [4]
The answer is A and C
3 0
2 years ago
Read 2 more answers
Cora’s kitten weighs 1,200 grams. If he weighed 550 grams at the last visit to the veterinarian’s office, what is the percent in
Neporo4naja [7]

percent increase = (new -original)/original

           

=   (1200-550)/550

650/550

=1 100/550

1 2/11

1.181818

118.18 percent

to the nearest whole number

118 %

8 0
3 years ago
4r-2=4r-2 what's the solution? can have either have many solutions or none
butalik [34]

That "equation" has an infinite number of "solutions", because
no matter what 'r' is, it's always a true statement.

The statement is equivalent to saying "I am I." or "You are you."

7 0
3 years ago
Read 2 more answers
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