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3 years ago

Please help me I need to answer this question tonight

Mathematics

1 answer:

velikii [3]3 years ago

3 0

Jake because 45.21×10=452.1 which is not a whole number, and 8.22×10=82.2 which is also not a whole number, but 45.21×100=4521 which is a whole number, and 8.22×100=822 which is also a whole number. When you multiply a number with 1 and 0s behind it (ex: 10,100,1000, etc) You just more the decimal place the number of 0s you have (ex: 2.0×100= 200, 3.5×1000=3500)

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FIND THE VALUE OF X AND Y PLEASE ILL GIVE YOU BRAINLEST

e-lub [12.9K]

Answer:

x = 10

y = 50

Step-by-step explanation:

9x - 70 = x + 10

8x - 70 = 10

8x = 80

x = 10

3y - 60 = 90

3y = 150

y = 50

4 0

3 years ago

Read 2 more answers

Each side of the square below is 8 inches. A triangle inside of a square. The top of the triangle divides a side of the square i

dmitriy555 [2]

The probability that a point is chosen at random in the square is in the blue region is 0.8.

<h3>What is Probability?</h3>

The probability helps us to know the chances of an event occurring.

$\rm{Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}$

As we know that the area of the shaded region is the sum of the area of triangle A and the area of triangle B. Therefore, the area of the blue shaded region is,

$\text{Area of shaded region} = (\dfrac{1}{2} \times 8 \times 8) + (\dfrac{1}{2} \times 4 \times 8)$

$= (32) + (16)\\\\= 48\rm\ in^2$

The area of the square can be written as,

$\text{Area of Square} = \rm(Side)^2 = 8^2 = 64\ in^2$

Now, the probability that a point is chosen at random in the square is in the blue region can be written as,

$\rm{Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}\\\\$

$\rm Probability = \dfrac{\text{Area of blue region}}{\text{Area of square}}\\\\Probability = \dfrac{48}{60} = 0.8$

Hence, the probability that a point is chosen at random in the square is in the blue region is 0.8.

Learn more about Probability:

brainly.com/question/795909

8 0

2 years ago

I need help. please show work

lapo4ka [179]

Answer:

- 2 $x^{7}$ + 5x² - 2x + 4

Step-by-step explanation:

A polynomial in standard form has the leading term( first term) of the term with the largest exponent.

Other terms then follow in descending powers.

Given

5x² - 2 $x^{7}$ + 4 - 2x

The term with the largest exponent is - 2 $x^{7}$ ← becomes first term

Thus the polynomial can be expressed as

- 2 $x^{7}$ + 5x² - 2x + 4 ← in standard form

4 0

3 years ago

Read 2 more answers

What type of graph is best to use for making comparisons among data?

ludmilkaskok [199]

A.Bar graph u alawys use a bar graph in math
Leave a comment if u need more help ☺

6 0

3 years ago

sam has to climb to the top of the building for his firefighter training. he doesn’t know how high it is. he is 6ft y’all and hi

Virty [35]

The height of building is 35 feet

<em><u>Solution:</u></em>

Given that,

Sam is 6 feet tall and his shadow is 3.6 feet tall

The shadow of building is 21 feet long

<em><u>To find: height of building</u></em>

We can solve this by setting up a ratio comparing the height of the building to the height of the Sam and shadow of the building to the shadow of the Sam

Let us consider,

$h_b$ = height of building