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3 years ago

Please Show Your Work!!

Mathematics

2 answers:

Vedmedyk [2.9K]3 years ago

8 0

Answer:

Step-by-step explanation:

If you turn it sideways it won’t fit through because the table is 86 inches in diameter and the height is only 80 inches high.

tatiyna3 years ago

5 0

I can’t really see the worksheet good it’s blurry

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A passenger plane left Rome and flew toward Jakarta. one hour later a cargo plane left flying 26 km/h faster in an effort to cat

denis-greek [22]

The first plane would be going about 23.83 km/h

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3 years ago

The mayor of a large city claims that the average net worth of families living in this city is at most $300,000. A random sample

Sergeu [11.5K]

Answer:

Check the explanation

Step-by-step explanation:

Below are the null and alternative Hypothesis,

Null Hypothesis, H0: μ = 300000

Alternative Hypothesis, Ha: μ < 300000

Test statistic,

z = (xbar - mu)/(sigma/sqrt(n))

z = (288000 - 300000)/(80000/sqrt(25))

z = -0.75

P-value Approach

P-value = 0.2266

As P-value >= 0.05, fail to reject null hypothesis.

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3 years ago

Georgia built a model of the empire state building that is proportional to the actual building. the actual building is 187 feet

VLD [36.1K]

1,454 / 10 = 145.4

187 / 145.4 = 1.29

1.29ft wide

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3 years ago

Which expression is equivalent to (x6x10

yan [13]

Answer:

In solving an equation where one fraction is equal to another fraction we can use the method of cross-multiplication

⇒x+6x=107

Now multiply the red terms together, the blue terms together and equate them.

⇒10x=7(x+6)

distribute the bracket.

5 0

3 years ago

The parabolas defined by the equations y=-x^2-x+1 and y=2x^2-1 intersect at points (a, b) and (c, d), where c>=a. What is c-a

Fittoniya [83]

Answer:

c - a = $\frac{5}{3}$

Step-by-step explanation:

Since the parabolas intersect we can equate them, that is

2x² - 1 = - x² - x + 1 ← subtract terms on right side from terms on left side

3x² + x - 2 = 0

Consider the factors of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 3 × - 2 = - 6 and sum = + 1

The factors are + 3 and - 2

Use these factors to split the x- term

3x² + 3x - 2x - 2 = 0 ( factor the first/second and third/fourth terms )

3x(x + 1) - 2(x + 1) = 0 ← factor out (x + 1) from each term

(x + 1)(3x - 2) = 0

Equate each factor to zero and solve for x

x + 1 = 0 ⇒ x = - 1

3x - 2 = 0 ⇒ 3x = 2 ⇒ x = $\frac{2}{3}$

Since c > a, then

a = - 1 and c = $\frac{2}{3}$

Thus

c - a = $\frac{2}{3}$ - (- 1) = $\frac{2}{3}$ + 1 = $\frac{2}{3}$ + $\frac{3}{3}$ = $\frac{5}{3}$

3 0

3 years ago