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3 years ago

What dose 20+200=

Mathematics

2 answers:

joja [24]3 years ago

4 0

220 two hundred twenty

Elena L [17]3 years ago

4 0

Answer: It equals 220, :)

You might be interested in

Place values and whole number

LenKa [72]

9. ( 1×10,000)+(5×1,000)+(4×100)+(9×1) ; fifteen thousand , four hundred - nine

7 0

4 years ago

A cylindrical water tank has a diameter of 9 feet and a height of 16 feet. Each can of paint covers 50 square feet. What is the

iVinArrow [24]

Answer:

12 cans

Step-by-step explanation:

The area of the outside of the tank:

radio = half diameter = 4.5 ft.

base: $A_{b} =\pi r^{2} =\pi (4.5)^{2} =20.25\pi$

Top: = base $=20.25\pi$

cylinder: $2\pi rh=2\pi (4.5)(16)=144\pi$

Total area to paint: $144\pi +2(20.25\pi) =184.5\pi =579.6sq.ft.$

Number of cans of paint:

$c=\frac{579.6}{50} =11.59=12$

Hope this helps

7 0

3 years ago

Alana claims that not all 4-sided polygons with 2 pairs of equal sides are parallelograms. Is she correct. Please explain why

sergiy2304 [10]

Answer:

No, she is not correct

Step-by-step explanation:

Given: Alana claims that not all 4-sided polygons with 2 pairs of equal sides are parallelograms

To check: whether she is correct or not.

Solution:

Any two-dimensional figure formed using straight lines is known as a polygon. Triangles, quadrilaterals are examples of polygons.

A parallelogram is a quadrilateral in which opposite sides are parallel.

Kite is a polygon made up of four sides with two pairs of equal sides that are adjacent to each other but it is not a parallelogram as its opposite sides are not parallel.

So, she is not correct.

6 0

3 years ago

Your cell phone plan allows you 400 minutes per month so far this month you have used 265 minutes and you have 7 days left write

kati45 [8]

7x + 265 ≤ 400
Hope this helps!

5 0

3 years ago

Find the range, variance, and standard deviation for the given sample data. Include appropriate units in the results.Listed bel

timama [110]

Answer:

D.No, because some models of cell phones will have a larger market share than others. Measures from different models should be weighted according to their size in the population.

Step-by-step explanation:

(a) Range is the difference between the smallest and largest observation.

Here Smallest observation = 0.63

and Largest observation = 1.48

⇒ Range = 0.85

(b) Standard Deviation is calculate by,

$Standard deviation(\sigma) = \sqrt{\frac{1}{n}\sum_{i=1}^{n}{(x_{i}-\bar{x})^{2}} }$

where, $\bar{x}$ is mean of the observation.

Here, Mean = 0.988

⇒ Standard Deviation = 0.313

(c) Variance is the square of Standard deviation.

Thus, Variance = (Standard Deviation)² = 0.098

(d) Here last option(D) is true i.e. No, because some models of cell phones will have a larger market share than others. Measures from different models should be weighted according to their size in the population.

8 0

3 years ago