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3 years ago

Explain how the shapes shown have been sorted.

Mathematics

2 answers:

zlopas [31]3 years ago

5 0

Answer:

Shapes in set A are all Quadrilaterals which are Parallelograms, whereas shapes in set B are all Quadrilaterals but one different than the other.

Hope this helps!

makkiz [27]3 years ago

3 0

In set A they are all Quadrilaterals which are Parallelograms, and in set B they are Quadrilaterals but one is different than the other.

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At winds speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. Wind speeds below 100

alisha [4.7K]

Answer:

Lower limit = 1007.95 cm/s

Upper limit = 1142.05 cm/s

Step-by-step explanation:

We have to calculate a 95% CI with population's standard deviation known.

The sample is size n=60, with mean M=1075.

The confidence interval can be expressed as:

$M-z*\sigma/\sqrt{n} \leq\mu\leq M+z*\sigma/\sqrt{n}$

For a 95% CI, the value of z=1.96.

$1075-1.96*265/\sqrt{60} \leq\mu\leq 1075+1.96*265/\sqrt{60} \\\\1075-67.05 \leq\mu\leq 1075+67.05\\\\ 1007.95 \leq\mu\leq 1142.05$

8 0

3 years ago

Metallic silver has a density of 10.50. what is the mass, in g, of a silver ingot that is 28.0 cm long, 4.90 cm wide, and 3.60 c

frozen [14]

Answer:

5190 g

Step-by-step explanation:

Calculate the volume:

28.0 cm × 4.90 cm × 3.60 cm = 493.92 cm³

Density is mass divided by volume:

D = M / V

Solving for mass:

M = D V

Substituting values:

M = (10.50 g/cm³) (493.92 cm³)

M = 5186.16 g

Rounding to three significant figures, the mass is 5190 g.

3 0

4 years ago

The length of a rectangle is 5 Inches more than its width, x. The area of a rectangle can be represented by the equation

Paul [167]

Answer:

Factor:

x^2+5x-300=0

(x-15)(x+20)=0

x=15 is the width

x+5=20 is the length

Step-by-step explanation:

4 0

4 years ago

Evaluate the algebraic<br> expression:<br> Plz answer quick

Andrew [12]

Answer:

7,-5,-11

Step-by-step explanation:

-3(-4)-5=7

-3(0)-5=-5

-3(2)-5=-11

5 0

3 years ago

Malia works at a movie theater and is paid hourly. One month, she earned $388.80. The total amount she earns can be found using

Georgia [21]

Malia : y = 8.1x.....this tells me she makes 8.10 per hr worked

Bill : if he earned 144.90 for working 18 hrs.....144.90/18 = 8.05 per hr worked.

so Malia makes 5 cents more per hr worked.

Is that the answer ur looking for ?

4 0

4 years ago

Read 2 more answers