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3 years ago

Need help asap

Mathematics

1 answer:

Zinaida [17]3 years ago

7 0

Answer:

Helllllllllllll nawwwwww

Step-by-step explanation:

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Which of these numbers is correctly written in scientific notation? 10.5x10⁹ 5x10⁴ 1.234x10¹¹ 1234x10-³

Karolina [17]

Scientific notation is written in the form;

$a\times10^n$

where;

a - is a real number whose absolute value is between 1 and 10.

$1\leq a$

And n is the power/ exponent(an integer).

The correct scientific notation from the options that follows the stated rule is;

$1.234\times10^{11}$

6 0

1 year ago

0.29is lesser or greater or equal to 0.3

Ostrovityanka [42]

0.29 is less than 0.3.

3 0

3 years ago

Read 2 more answers

Can somone pls help me with this I have a C- in math and I really need help also a like show work on each one plsss

Lady bird [3.3K]

Answer:

1. $\frac{3}{8}$

2. $\frac{1}{4}$

3a. $-\frac{1}{4}$

3b. 3

3c. $-\frac{4}{5}$

4. $m = \frac{y_1 - y_2}{x_1-x_2}\\$

Step-by-step explanation:

Rises 6 inches for every horizontal change of 16 inches

Slope = rise/run

Slope = 6/16

Slope = 3/8

Rises 3 feet for every horizontal change of 12 feet

Slope = rise/run

Slope = 3/12

Slope = 1/4

3a.

$m = \frac{y_1 - y_2}{x_1-x_2}$

$m = \frac{3-2}{-2-2}$

$m = \frac{1}{-4}$

$m = -\frac{1}{4}$

3b.

$m = \frac{y_1 - y_2}{x_1-x_2}\\$

$m = \frac{-1 - 2}{-1-0}$

$m = \frac{-3}{-1}$

$m = 3$

3c.

$m = \frac{y_1 - y_2}{x_1-x_2}\\$

$m = \frac{1 - (-3)}{-1-4}\\$

$m = \frac{4}{-5}\\$

$m = -\frac{4}{5}$

$m = \frac{y_1 - y_2}{x_1-x_2}\\$

7 0

3 years ago

222222222222222222222232<br>

Agata [3.3K]

Answer:

Step-by-step explanation:

hope this helps

5 0

3 years ago

Look at this system of equations.<br> 2x +5 =9.5<br> 3x + 5y =10.5<br> What is the value of x+y

stiv31 [10]

Answer:

x = 2.25 y = 0.75

Step-by-step explanation:

2x = 9.5- 5

2x = 4.5

x = 4.5 ÷ 2

x = 2.25

know we now what is x so in the second one we evaluate x

3(2.25) + 5y = 10.5

6.75 + 5y = 10.5

5y = 10.5- 6.75

5y = 3.75

y = 3.75 ÷ 5

y = 0.75

that's it !

if you want to check your answer you can evaluate x and y so it will be like

2×2.25 + 5

= 4.5 + 5 = 9.5

and

3× 2.25 +5×0.75

= 6.75 + 3.75 = 10.5

6 0

3 years ago