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Luda [366]
2 years ago
12

Please help me. Image below.

Mathematics
2 answers:
Furkat [3]2 years ago
4 0

Answer:

10 cubes

Step-by-step explanation:

2.5 × 1 × 2 = 5 cm³

5 ÷ 0.5

10 cubes

slava [35]2 years ago
4 0

Answer:

10 cubes

Step-by-step explanation:

1 × 2 × 2.5 = 5cm^3

5 ×× .5 = 10

so 10 cubes would fit

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Can someone help me please?
Genrish500 [490]

Answer:

56

Step-by-step explanation:

The angle sum theorem *I think* is that for an n-sided shape, the total sum of its angles is 180(n-2).

The sum of a triangles' angles is 180 degrees.

Therefore 4v-44 = 180.

v - 11 = 45

v = 56 degrees

Note: always check if the answer makes sense

6 0
3 years ago
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The two solids are similar and the ratio between the lengths of their edges is 2:9 what is the ratio of their surface areas
aliina [53]
I THINK the ratio is 4:81 but i don’t know lol
3 0
3 years ago
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suppose f(x) = x2, how does the range of g(x) = f(x) + k compare to the range of f(x)? Where k is any constant value.
anyanavicka [17]
First:  Please use the symbol " ^ " to indicate exponentiation.  Your f(x) should be x^2, not x2.  "x^2" reads "the square of x."

Let y equal g(x) = f(x) + k:  y = <span>g(x) = f(x) + k.  See that "k" is a y value?
If k=1, we merely translate the graph of f(x)=x^2 UP one scale division to obtain the graph of g(x) = f(x) + 1.

So, how does the range of g(x) compare to the range of f(x)? </span>
4 0
3 years ago
Please help ASAP!!!!!!
Usimov [2.4K]

Answer:

x = 10

Step-by-step explanation:

3x - 9 = 21

add 9 on both sides:

⇒ 3x - 9 + 9 = 21 + 9

⇒ 3x = 30

divide 3 on both sides:

⇒ \frac{3x}{x} = \frac{30}{3}

⇒ x = 10

to check answer, substitute x by 10 on the original equation:

⇒ 3x - 9 = 21

⇒ 3 x 10 - 9 = 21

⇒30 - 9 = 21

⇒ 21 = 21

8 0
2 years ago
The annual salaries of employees in a large company are approximately normally distributed with a mean of $50,000 and a standard
Anna35 [415]

Answer:

a) 30.85% of people earn less than $40,000

b) 37.21% of people earn between $45,000 and $65,000.

c) 15.87% of people earn more than $70,000

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 50000, \sigma = 20000

a.What percent of people earn less than $40,000?

This is the pvalue of Z when X = 40000. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{40000 - 50000}{20000}

Z = -0.5

Z = -0.5 has a pvalue of 0.3085.

30.85% of people earn less than $40,000

b.What percent of people earn between $45,000 and $65,000?

This is the pvalue of Z when X = 65000 subtracted by the pvalue of Z when X = 45000. So

X = 65000

Z = \frac{X - \mu}{\sigma}

Z = \frac{65000 - 50000}{20000}

Z = 0.75

Z = 0.75 has a pvalue of 0.7734.

X = 45000

Z = \frac{X - \mu}{\sigma}

Z = \frac{45000 - 50000}{20000}

Z = -0.25

Z = -0.25 has a pvalue of 0.4013.

0.7734 - 0.4013 = 0.3721

37.21% of people earn between $45,000 and $65,000.

c.What percent of people earn more than $70,000?

This is 1 subtracted by the pvalue of Z when X = 70000. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{70000 - 50000}{20000}

Z = 1

Z = 1 has a pvalue of 0.8413.

1 - 0.8413 = 0.1587

15.87% of people earn more than $70,000

3 0
3 years ago
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