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gogolik [260]
2 years ago
6

Solve using quadratic equation by factoring. x^2-9x=-14

Mathematics
2 answers:
Usimov [2.4K]2 years ago
7 0

Answer:

x= 2 or 7

Step-by-step explanation:

Steps are in the photo I attached

Sonbull [250]2 years ago
5 0

Answer:

2,7

Step-by-step explanation:

See image below:)

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Most college-bound students take either the SAT(Scholastic Assessment Test) or the ACT (which originally stood for American coll
Jlenok [28]

Answer:

Luis would need to have a SAT score of 574.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

Nicole's z-score:

ACT scores have a mean of about 21 with a standard deviation of about 5, which means that \mu = 21, \sigma = 5

Nicole gets a score of 24, which means that X = 24. Her z-score is:

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

Z = \frac{24 - 21}{5}

Z = 0.6

What score would Luis have to have on the SAT to have the same standardized score(z-score) as Nicole's standardized score on the ACT?

Luis would have to get a score with a z-score of 0.6, that is, X when Z = 0.6.

SAT scores have a mean of about 508 with a standard deviation of about 110, which means that \mu = 508, \sigma = 110.

The score is:

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

0.6 = \frac{X - 508}{110}

X - 508 = 0.6*110

X = 574

Luis would need to have a SAT score of 574.

8 0
2 years ago
triangle ABC has coordinates A(4, 1), B(2, 3), and C(7, 5). If the triangle is rotated 270° counterclockwise about the origin, w
Kitty [74]

Coordinates of a' would be (1,-4)

4 0
3 years ago
20 how much metal is needed to smelt a cubical metal box with outer side 12 inches long if the thickness of its walls should be
guajiro [1.7K]
The volume of the metal box if the box was completely solid (V1), is:
 
 V1=(12 inches)³
 V1=1728 inches³
 
 As there are 3 inches of metal on both sides, the widht if the metal box was not completely solid, is:
 
 W=12 inches-(3 inchesx2)
 W=6 inches
 
 Then, the volumen of the no solid metal box is:
 
 V2=(6 inches)³
 V2= 216 inches³
 
 Therefore, the volume of metal needed to smelt the cubical metal box, is:
 
 V3=V1-V2
 V3=1728 inches³-216 inches³
 V3=1512 inches³
6 0
3 years ago
In a payday loan, which of the following happens at the date of loan maturity?
Lapatulllka [165]
A.) borrower must pay off the loan.
6 0
3 years ago
Read 2 more answers
Complete the function f(x)=2x-5
Grace [21]

Replace X in the equation with the values in the table and calculate:


2X-5:

2(-4) -5 = -8 -5 = -13

2(-2)-5 = -4-5 = -9

2(1)-5 = 2-5 = -3

2(3)-5 = 6-5 = 1

2(5)-5 = 10-5 = 5

7 0
2 years ago
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