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2 years ago

A number is less than half of another number written in a equation

Mathematics

1 answer:

Amanda [17]2 years ago

5 0

Answer:

x<1/2(y)

Step-by-step explanation:

call the number x, and the other number y, the answer is:

x<1/2(y)

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How to make 5:___=40:32 an equivalent ratio

docker41 [41]

Answer:

Step-by-step explanation:

5 : ? = 40 : 32

40 / 5 = 8

32 / 8 = 4

5 0

3 years ago

Difference between cylinder and cone

lord [1]

A cylinder has two bases and a height that (unless oblique) runs right along a side, while a cone has one base and whose height begins at the center of its base and goes straight up to the peak.

7 0

3 years ago

Water is draining from an aquarium at a rate of

riadik2000 [5.3K]

Answer : 15 gallon per minute

6 0

3 years ago

State if the triangles in each pair are similar. If so, state how you know they are similar and complete the similarity statemen

astraxan [27]

Answer:

angle BEC is congruent to angle FEG (vertical opposite angles)

other than that, I'm not sure if the other angles are congruent bc of their marks.

Step-by-step explanation:

5 0

2 years ago

Suppose the national mean SAT score in mathematics was 510. In a random sample of 60 graduates from Stevens High, the mean SAT s

zalisa [80]

Answer:

We accept the alternate hypothesis and conclude that mean SAT score for Stevens High graduates is not the same as the national average.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 510

Sample mean, $\bar{x}$ = 502

Sample size, n = 60

Sample standard deviation, s = 30

Alpha, α = 0.05

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 510\\H_A: \mu \neq 510$

We use Two-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n-1}} }$ Putting all the values, we have

$t_{stat} = \displaystyle\frac{502- 510}{\frac{30}{\sqrt{60}} } = -2.0655$

Now,

$t_{critical} \text{ at 0.05 level of significance, 59 degree of freedom } = \pm 1.671$

Since,

$|t_{stat}| < |t_{critical}|$

We reject the null hypothesis and fail to accept it.

We accept the alternate hypothesis and conclude that mean SAT score for Stevens High graduates is not the same as the national average.

7 0

3 years ago