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taurus [48]
4 years ago
12

I need help with all of these!!

Mathematics
1 answer:
kifflom [539]4 years ago
5 0
7=7
8=2
9=one solution
10=b=3p
       s=b-2.50
11=b=6.75
       p=2.25
       s=4.25


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Weekly wages at a certain factory are
Furkat [3]

Answer: 0.1359

Step-by-step explanation:

mean = $400

Standard deviation = $50

Since the wages is normally distributed , the first thing is to find the z - score.

z = \frac{x-mean}{standard deviation}

finding the z - value for 300 and 350 , we have

z = \frac{300-400}{50}

z = \frac{-100}{50}

2 = -2

also

z = \frac{350-400}{50}

z = \frac{-50}{50}

z = -1

The next thing is to check the calculated value on z - table.

From z - table :

P (z\leq -2 ) = 0.0228

P ( z \leq -1 ) = 0.1587

combining the two

P ( -2\leqz\leq-1 ) = 0.1587 - 0.0228

P ( -2\leqz\leq-1 ) = 0.1359

Therefore , the the probability that a worker

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3 0
3 years ago
Which pairs of quadrilaterals can be shown to be congruent using
Zielflug [23.3K]

Rigid transformation do not alter the sides and angle measurements of a shape.

The true statements are:

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<em />

From the graph, we have the following highlights

  • Quadrilaterals 2, 3 and 4 are congruent
  • Quadrilateral 1 does not have equal measure with any of the other quadrilaterals.

Hence, the first three statements are not congruent, while the last statement is congruent.

Read more about congruent shapes at:

brainly.com/question/24430586

3 0
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Nezavi [6.7K]
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g is less than or equal to 117.5
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8 0
4 years ago
Read 2 more answers
HOW DO I SOLVE THIS??<br> What would the answer be??<br> THANKS!
Arisa [49]
Convert 300% into decimals. So move the decimal point 2 times to the left and you get 3.00 and multiply it by 5 and square it because area of square is s^2
7 0
4 years ago
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Nesterboy [21]

Answer:

The answer is -x

Step-by-step explanation:

(x+3)(x-4)

x²-4x+3x-12

x²-x-12

7 0
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