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oksian1 [2.3K]
3 years ago
14

The quadratic equation x2 + 28 = 64 has two solutions,

Mathematics
1 answer:
AVprozaik [17]3 years ago
4 0

Answer:

x= 6, -6

Step-by-step explanation:

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What is a linear expression?
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It either means its constant or the product of a constant
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4 years ago
Each week samantha can pay as much as $15 for her school lunch. Write an inequality showing how much samantha spends on lunch.
Annette [7]

Answer:

x\leq \$15

Step-by-step explanation:

Let

x------> amount of money that Samantha spends weekly on her school lunch

we know that

The inequality that represent this situation is

x\leq \$15

All positive real number less than or equal to 15

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Nate read 10 more books than maren for the summer reading program. The total number of books they read is 60. Solve x + x + 10 =
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Answer:

25

Step-by-step explanation:

x + x + 10 = 60

x + x = 50

2x = 50

x = 25

4 0
3 years ago
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A gas company president for a particular city is interested in the proportion of homes heated by gas. Historically, the proporti
Darina [25.2K]

Answer:

p-value (0.0208) is less than alpha = 0.05 reject H0.

Step-by-step explanation:

we have the following data:

sample size = n = 75

x, the number to evaluate is 45

the sample proportion would be: x / n = 45/75

p * = 0.6

Now, the null and alternative hypotheses are:

H0: P = 0.72

Ha: P no 72

two tailed test

statistic tes = z = (p * - p) / [(p * (1-p) / n)] ^ (1/2)

replacing we have:

z = (0.6 - 0.72) / [(0.72 * (1-0.72) / 75)] ^ (1/2)

z = -2.31

p-vaule = 2 * p (z <-2.31)

using z table, we get:

p-vaule = 2 * (0.0104)

p-vaule = 0.0208

Therefore, p-value (0.0208) is less than alpha = 0.05 reject H0.

4 0
4 years ago
PLEASE HELP! WILL MARK BRAINLIEST IF YOU'RE CORRECT! IF NOT, NO BRAINLIEST.
Kazeer [188]

Answer:

CYLINDER

Step-by-step explanation:

4 0
3 years ago
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