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tatiyna
3 years ago
6

Find the discriminant and the number of real roots for this equation. x2 + 2x + 7 = 0

Mathematics
1 answer:
zavuch27 [327]3 years ago
8 0

Answer:

Discriminant = -24

No real roots.

Step-by-step explanation:

x^2 + 2x + 7 = 0

The discriminant = b^2 - 4ac

= 2^2 - 4*1*7

= -24

So there are no real roots.

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A medium-sized (4-pound) sugar pumpkin should yield around 1½ cups of mashed pumpkin. So, if a 4-pound pumpkin will yield about
Greeley [361]

Answer: 948

Step-by-step explanation:

From the question, we are informed that 4-pound pumpkin will yield about 1.5 cups of mashed pumpkin (pumpkin puree).

Therefore, the number of cups of pumpkin puree that Steve Geddes' 2,528-pound pumpkin will yield will be:

= (2528/4) × 1.5

= 632 × 1.5

= 948 cups of pumpkin puree

4 0
3 years ago
One hundred is multiplied by a number between 0 and 1. Which of the following could be an answer?
kvasek [131]

Answer:

72

Step-by-step explanation:

0 < x < 1

Multiply the inequality by 100

0 < 100x < 100

0 < 72 < 100

8 0
3 years ago
Read 2 more answers
The volume of a cylinder is 225π cubic inches,
aleksklad [387]

The value of the height of the cylinder is 25cm.

According to the statement

we have to find that the height pf the cylinder with the given value of the volume.

So, For this purpose we know that the

The volume of a cylinder is the density of the cylinder which finds that the amount of material it can carry. Cylinder's volume is given by the formula, πr^2h.

From the given information:

The volume of a cylinder is 225π cubic inches, and the radius of the cylinder is 3 inches.

Then

volume = πr^2h

225π = π3^2h

Now, solve it then

225 = 9h

h = 25.

The value becomes 25.

So, The value of the height of the cylinder is 25cm.

Learn more about volume of a cylinder here

brainly.com/question/9554871

#SPJ9

5 0
1 year ago
The ______________ probability of an outcome is obtained by dividing the frequency of occurrence of an event by the number of tr
Norma-Jean [14]

Answer:

Empirical probability

Step-by-step explanation:

Empirical probability is data collected from experiment and real-life situation.

The "empirical probability" of an outcome is obtained by dividing the frequency of occurrence of an event by the number of trails of the experiment.

\Longrightarrow: \sf{P(E)=\dfrac{\text{number of times event occured}}{\text{number of trails}}

  • <u>Therefore, the correct answer is empirical probability.</u>

I hope this helps you! Let me know if my answer is wrong or not.

3 0
2 years ago
After Mike made deposits of $32.88 and $422.73 and wrote checks for $350.00, $126.13, and $41.09, he had $249.81 in his checking
irina1246 [14]

Answer:

$311.42

Step-by-step explanation:

assuming he would have $0.00 dollars left over after the checks. add the checks together then add the deposits together then subtract.

767.03 - 455.61 = 311.42

8 0
3 years ago
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