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STatiana [176]
2 years ago
5

Work out the area of ABCD. Give your answer to 1 decimal place.

Mathematics
1 answer:
Mashutka [201]2 years ago
6 0

Answer:

A is 90

C is 65

Step-by-step explanation:

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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
The kinetic energy (in joules) of a moving object can be calculated from the expression 1/2mv^2, where m is the mass of the obje
algol13

Answer: 116\text{ joules}


Step-by-step explanation:

Given: Mass of baseball=0.145 kg

Speed of baseball=40 meters per second

Also it is given that The kinetic energy (in joules) of a moving object can be calculated from the expression \frac{1}{2}mv^2 , where 'm' is the mass of the object in kilograms and 'v' is its speed in meters per second.

Thus, the kinetic energy of baseball=\frac{1}{2}(0.145)(40)^2

\frac{1}{2}(0.145)(1600)=116\text{ joules}

3 0
3 years ago
Read 2 more answers
A person selecting a bank does not need to consider whether the staff is friendly and helpful. True False
Nostrana [21]
False, A person would not want a bank where they could not depend on the staff and be able to come to them if they were having problems with the bank account
8 0
3 years ago
Read 2 more answers
Simplify using Quotient<br> Rule<br> 10^12 OVER 10^8
OverLord2011 [107]

Answer:

10^4

Step-by-step explanation:

All you have to di is subtract the exponents.

5 0
3 years ago
Which graph represents an odd function?<br><br>Answer by using: A, B, C, or D for each graph.
vladimir1956 [14]

Answer: The correct option is C.

Explanation:

A function is called an odd function if,

f(-x)=-f(x)

It means if the points are in the form of (x,y) then (-x,-y) is also in the graph.

Reason for correct option:

In option C, a point  (1,2),

It means,

f(1)=2

And we have another point (-1,-2).

f(-1)=-f(1)=-2

The other points are (2,3),(-2,-3),(3,-1),(-3,1),(4,0),(-4,0). Therefore the function is an odd function.

Reason for incorrect option:

In option A, a point is (1,3), therefore the value of function at x = -1 should be -3.

But the value of function is 1 at x=-1, therefore it is not an odd function.

In option B, a point is  (1,0), therefore the value of function at x = -1 should be 0.

But the value of function is -3 at x=-1, therefore it is not an odd function.

In option D, a point is (1,-1), therefore the value of function at x = -1 should be 1.

But the value of function is -1 at x=-1, therefore it is not an odd function.

6 0
3 years ago
Read 2 more answers
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