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ASHA 777 [7]
3 years ago
11

I need help i don’t know which one is right please help

Mathematics
1 answer:
olga55 [171]3 years ago
7 0

Answer: 12√2

Step-by-step explanation:

This is a 45-45-90 triangle. In this triangle, a and b are equal lengths, therefore hypotenuse, c, is x√2.

Since a and b is 12, c is 12√2.

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Find the least common multiple of x2 – 4x – 5 and x2 – 3x – 10.
vfiekz [6]

<u>x² - 4x - 5</u>                           <u>x² - 3x - 10</u>

(x - 5)(x + 1)                         (x - 5)(x + 2)

                  GCF: (x - 5)

                  LCM: (x - 5)(x + 1)(x + 2)

Answer: (x - 5)(x + 1)(x + 2)

5 0
3 years ago
A: x/4 +1 = -3 B: x+4 = -12 1) How can we get Equation B from Equation A?
Sveta_85 [38]

Answer:In the equation y = mx + b for a straight line, the number m is called the slope of the line. Let x = 0, then y = m • 0 + b, so y = b. The number b is the coordinate on the y-axis where the graph crosses the y-axi

Step-by-step explanation:

5 0
3 years ago
Who know the answer of this? And can u pls explain for me?
anyanavicka [17]

Answer:

1.5 kg

Step-by-step explanation:

17*92 g = 1564

1564/1000= 1.564 kg

4 0
3 years ago
Read 2 more answers
Can anyone find the answers this for these question but make them fractions
k0ka [10]

We are given fractions \frac{77672}{5548} and \frac{288184}{34}.

In order to write them in simplest fractions, we need to find a common number that can divide both top and bottom.

Let us work on simplifying first fraction first.

\frac{77672}{5548}

We have 77672 on the top and 5548 in the bottom.

The greatest number 5548 can divide both 77672 and 5548 both.

Dividing 77672 by 5548, we get 14 and dividing 5548 by 5548 we get 1.

Putting quotent 14 on the top and 1 in the bottom, we get

\frac{14}{1}  . This is the answer for first part.

Let us work on simplifying second fraction \frac{288184}{34}.

Top number 288184 and bottom number 34, both can be divided by 34.

On dividing 288184 by 34, we get 8476 and dividing 34 by 34, we get 1.

Putting quotent 8476 on the top and 1 in the bottom, we get

\frac{8476}{1}.   This is the answer for second part.

7 0
3 years ago
Keenan scored 80 points on an exam that had a mean score of 77 points and a standard deviation of 4.9 points. Rachel scored 78 p
Artemon [7]

Answer:

Keenan's z-score was of 0.61.

Rachel's z-score was of 0.81.

Step-by-step explanation:

Z-score:

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.

Keenan scored 80 points on an exam that had a mean score of 77 points and a standard deviation of 4.9 points.

This means that X = 80, \mu = 77, \sigma = 4.9

So

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

Z = \frac{80 - 77}{4.9}

Z = 0.61

Keenan's z-score was of 0.61.

Rachel scored 78 points on an exam that had a mean score of 75 points and a standard deviation of 3.7 points.

This means that X = 78, \mu = 75, \sigma = 3.7. So

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

Z = \frac{75 - 78}{3.7}

Z = 0.81

Rachel's z-score was of 0.81.

6 0
2 years ago
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