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yawa3891 [41]
3 years ago
11

Trong kho có các sợi dây thép dài 100cm. Chú thợ cần cắt mỗi sợi dây đó thành 3 loại dây có độ dài: 5dm, 20cm, 10cm để đan thành

các tấm lưới. Em hãy chỉ cho chú cách cắt tiết kiệm nhấ
Mathematics
1 answer:
Bezzdna [24]3 years ago
4 0

Answer:

20

Step-by-step explanation:

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Penelope has a cookie recipe that makes 1-dozen cookies and requires the following dry ingredients.
spin [16.1K]

Answer:

Answer 5 1/4

Step-by-step explanation:

4 0
3 years ago
The combined math and verbal scores for students taking a national standardized examination for college admission, is normally d
kipiarov [429]

Answer:

The minimum score that such a student can obtain and still qualify for admission at the college = 660.1

Step-by-step explanation:

This is a normal distribution problem, for the combined math and verbal scores for students taking a national standardized examination for college admission, the

Mean = μ = 560

Standard deviation = σ = 260

A college requires a student to be in the top 35 % of students taking this test, what is the minimum score that such a student can obtain and still qualify for admission at the college?

Let the minimum score that such a student can obtain and still qualify for admission at the college be x' and its z-score be z'.

P(x > x') = P(z > z') = 35% = 0.35

P(z > z') = 1 - P(z ≤ z') = 0.35

P(z ≤ z') = 1 - 0.35 = 0.65

Using the normal distribution table,

z' = 0.385

we then convert this z-score back to a combined math and verbal scores.

The z-score for any value is the value minus the mean then divided by the standard deviation.

z' = (x' - μ)/σ

0.385 = (x' - 560)/260

x' = (0.385×260) + 560 = 660.1

Hope this Helps!!!

8 0
3 years ago
What’s #1?????? Plz help
liq [111]

Answer:

C) 400\pi

Step-by-step explanation:

The formula for area is

A=pi * radius ^2

If the diameter is 40, the radius is 20

Therefore

A=\pi 20^{2} \\A=\pi 400

7 0
2 years ago
What is the line of symmetry of the parabola y=x2+6x-9?
Rzqust [24]
First we have to find the vertex (h,k) h is also x and it also is the a xis symmetry

1st: group the number
(X2+6x)-9

2nd: use b/2

6/2 = 3 , 3^2= 9

(X2+6x+9)-9-9

(X2 + 3)-18

Vertex is 3,-18 so the symmetry is 3
5 0
3 years ago
This liberal arts college has/A decided requiring/B all students to study/C at least one/D non-Europeanlanguage. No error/E
zhuklara [117]

<u>This</u><u> liberal arts college</u><u> has </u><u>all students</u><u> to study.</u>

<u />

The correct option is B.

What Is a Liberal Arts College?

  • While many colleges and universities grant liberal arts degrees, a liberal arts college offers a focused liberal arts education.
  • These colleges generally emphasize small class sizes and a curriculum centered on the humanities, arts, social sciences, and natural sciences.

What's the difference between a liberal arts college and a regular college?

  • Most liberal arts colleges do not offer graduate school programs, unlike other universities.
  • They also tend to have small campuses and class sizes; in fact, many classes have fewer than 20 students.
  • Evans says some students find comfort in the sense of community that these more intimate settings can create.

Learn more about Liberal Arts College

brainly.com/question/17546886

#SPJ4

7 0
1 year ago
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