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katrin2010 [14]
2 years ago
11

2 ways to simplify 4(5+6)

Mathematics
2 answers:
Mariana [72]2 years ago
8 0
#1: 4*5 + 4*6=20+24=44
#2: 4*(5+6)=4*11=44
Alexeev081 [22]2 years ago
3 0
I don’t know hope u find ur answer I need points I have a exam to do sorry
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Is (-2,-6) a solution of y < 7x + 8?​
mojhsa [17]

Answer:

not a solution

Step-by-step explanation:

y < 7x + 8

Substitute (2-,-6) into the inequality

-6 < 7(-2) +8

-6 <-14+8

-6 <-6

This is not true because they are equal not less than

6 0
3 years ago
Read 2 more answers
What is the value of sin0 in the diagram below?​
Tasya [4]

Answer:

The answer to your question is:  24/25

Step-by-step explanation:

Remember  that sinФ = opposite leg / hypotenuse

Opposite  leg = 24/25

Hypotenuse = 1

then  sin Ф = (24/25) / 1

        sin Ф = 24/25

3 0
3 years ago
Read 2 more answers
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
A cell phone company charges $4 per GB beyond 20GB in a month. The monthly plan is $59.99, and the bill for January is $75.99. H
Allushta [10]

Answer:

24GB

Step-by-step explanation:

75.99-59.99=16   This is how much extra money was paid.

16/4=4                   Divide this by the cost per GB.

20+4=24GB          Add the 20GB included in the plan.

3 0
3 years ago
Read 2 more answers
Find the distance between the points (3,9) and (9, 1).
mrs_skeptik [129]

Answer:

Distance is equal to 10.

Step-by-step explanation:

Use the distance formula: d=√((x_2-x_1)²+(y_2-y_1)²)

d = √(9-3)^2 + (1-9)^2

d = √(6)^2 + (-8)^2

d = √36 + 64

d = √100

d = √10

Hope this helps :)

4 0
2 years ago
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