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SVETLANKA909090 [29]
3 years ago
11

Standardized tests: In a particular year, the mean score on the ACT test was and the standard deviation was . The mean score on

the SAT mathematics test was and the standard deviation was . The distributions of both scores were approximately bell-shaped. Round the answers to at least two decimal places. Part: 0 / 40 of 4 Parts Complete Part 1 of 4 Your Answer is incorrect (a) Find the -score for an ACT score of . The -score for an ACT score of is
Mathematics
1 answer:
Scorpion4ik [409]3 years ago
6 0

Complete question :

Standardized tests: In a particular year, the mean score on the ACT test was 19.3 and the standard deviation was 5.3. The mean score on the SAT mathematics test was 532 and the standard deviation was 128. The distributions of both scores were approximately bell-shaped. Round the answers to at least two decimal places. Part: 0/4 Part 1 of 4 (a) Find the z-score for an ACT score of 26. The Z-score for an ACT score of 26 is

Answer:

1.26

Step-by-step explanation:

Given that:

For ACT:

Mean score, m = 19.3

Standard deviation, s = 5.3

Zscore for ACT score of 26;

Using the Zscore formula :

(x - mean) / standard deviation

x = 26

Zscore :

(26 - 19.3) / 5.3

= 6.7 / 5.3

= 1.2641509

= 1.26

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Graph the funtion f(x) = <img src="https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7Bx%20-%202%7D" id="TexFormula1" title="\sqrt[3]{x - 2
Kruka [31]

This process is very simple. All you are doing is creating a table of values somewhere to help you graph this function. As you can see, the coordinates of \displaystyle [-6, -2], [1, -1], [2, 0], [3, 1], and [10, 2] are all touched on this graph, letting you know that this information is accurate.

I am joyous to assist you at any time. ☺️

6 0
3 years ago
I really need help!!!!
Brilliant_brown [7]
Check out the attached image for the answers. 

-----------------------

Statement 2 is blank, but it has the reasoning "Corresponding angles postulate"
Because BD || AE, we know that the corresponding angles are congruent. 
One pair of corresponding angles is angle 1 and angle 4. This is because they are on the same side of the transversal AC and they are both above their parallel line counter-part. Similarly, angle 2 and angle 3 are another corresponding pair.
So you'll have "angle1=angle4, angle3=angle2" in the first blank slot

-----------------------

Reason 3 is blank. The statement is that triangle ACE is similar to triangle BCD. The reason why the are similar is the AA (angle angle) similarity postulate. This says that if you know two pairs of angles are congruent, then the triangles are similar. The two pairs of angles were mentioned back on the previous line (line 2)
So you'll put "Angle-Angle Similarity Postulate" in the second blank.

-----------------------

Look at the line just above the last line. Here we have
1 + (BA/CB) = 1 + (DE/CD)
If we subtract 1 from both sides, we end up with,
BA/CB = DE/CD
which is what will go in the last blank space

Side Note: The last statement will always be what you want to prove. So you can just look at the very top of the problem where it says "Prove:" under the "Given" part. Then just copy/paste the statement you want to prove, which in this case is BA/CB = DE/CD

4 0
3 years ago
An inventory record for the bookstore of a local college shows a receipt of 150 accounting books on May 1. Another shipment of 2
babunello [35]
Hi there
Let's order the transactions
on May 1. 150
less On May 20 100 books were sold

Less June 3, 31 books were purchased by the students

Add on June 15 25 books arrived

Add On June 17, a shipment of 150 books arrived

So
the number on hand on June 17
150−100−31+25+150
=194....answer

Hope it helps
4 0
4 years ago
Evaluate the determinant for the following matrix: 1 4 4 5 2 2 1 5 5
Elina [12.6K]
A Laplace expansion along the first row gives

\begin{vmatrix}1&4&4\\5&2&1\\1&5&5\end{vmatrix}=1\begin{vmatrix}2&1\\5&5\end{vmatrix}-4\begin{vmatrix}5&1\\1&5\end{vmatrix}+4\begin{vmatrix}5&2\\1&5\end{vmatrix}
=1(10-5)-4(25-1)+4(25-2)
=1
7 0
4 years ago
Kim bakes 1/4 of the cookies that are sold at a local bake sale. 1/3 of her cookies are chocolate chip. 1/4 of Kim's chocolate c
inysia [295]

Answer:

1/48

Step-by-step explanation:

1/4 of the cookies were Kim's

1/3 of that ( 1/3 x 1/4) were chocolate chips  which is 1/12 of the total

1/4 of that ( 1/12 x 1/4) had nuts . which is 1/48 of the total

The fraction is 1/48

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

5 0
3 years ago
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