All categories

2 years ago

Fill in the blanks below in order to justify whether or not the mapping shown

Mathematics

1 answer:

Hunter-Best [27]2 years ago

3 0

Answer:

Step-by-step explanation:

How to write numbers in standard form:

Write the first number 8.

Add a decimal point after it: 8.

Now count the number of digits after 8. There are 13 digits.

So, in standard form: 81 900 000 000 000 is 8.19 × 10¹³

You might be interested in

Can someone help me with this please

11Alexandr11 [23.1K]

Answer:

I have no clue

Step-by-step explanation:

1. Search online

2. Never count on me again!

4 0

2 years ago

What is the value of 3.2n when n=5

Lady bird [3.3K]

3.2n=3.2*5

3.2*5=16 the answer is 16

Hope this helps, have a great day!!

:)

7 0

2 years ago

X^2 - y^2 = 100

luda_lava [24]

Answer:

Step-by-step explanation:

Let's start by rewriting the second equation in terms of "x":

$x+y=5$

Subtract y from both sides:

$x=5-y$

Now, substitute "5-y" for "x" in the first equation:

$(5-y)^2-y^2=100$

Note that:

$(a-b)^2=a^2-2ab+b^2$

$25-10y+y^2-y^2=100$

Cancel out like terms:

$25-10y=100$

Subtract 25 from both sides:

$-10y=75$

Divide both sides by -10

$y=\frac{75}{-10}=\frac{15}{-2}=-\frac{15}{2}$

Now, substitute this value back into either of the equations to solve for x.

$x+y=5\\x-\frac{15}{2}=5\\$

Add 15/2 to both sides:

$x=5+\frac{15}{2}\\x=\frac{10}{2}+\frac{15}{2}\\x=\frac{25}{2}$

Now, find the difference:

$x-y=\frac{25}{2}-(-\frac{15}{2})=\frac{25}{2}+\frac{15}{2}=\frac{40}{2}=20$

8 0

2 years ago

Whats the reciprocal of <br> 4 3/7

Angelina_Jolie [31]

Answer

0.22580645161

Step-by-step explanation:

you just have to do 4 3/7 in a calculator

6 0

2 years ago

Pls help me is this right red devil is killing me

Pie

Answer:

6x^2-48x-29

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers