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2 years ago

2.9 x 10^5 + 8.7 x 10^5

Mathematics

1 answer:

LiRa [457]2 years ago

3 0

Answer:

So this is scientific notation what you do is

2.9x10^5 so you put however many zeros the is powered to 10. See there is a 5 It has to be behind or in front of the decimal you might be saying how do you know if its behind or in front well negative is in front and positive is behind .

290,000 there was a number already behind the decimal so there you go 5 number behind the decimal.

Same for the second one

290,000 870,000 is your answers so now you add hem together

1,160,000 is your final answer

Step-by-step explanation:

You might be interested in

X=7 and y=-2x+5 help!

rusak2 [61]

If x = 7 you substitute all the x in the equation by 7:

y = -2(7) + 5
y = -14 + 5
y = -9

Hope it helped,

Happy homework/ study/ exam!

4 0

3 years ago

D) If C.P. - Rs 100, S.P. Rs 80, then loss percent

AfilCa [17]

Step-by-step explanation:

Selling price = Rs.80

Cost price = Rs.100

here, CP > SP

Now...

Loss ( L ) = CP - SP

= RS.100 - 80

= Rs.20

Now...

$loss \: percent \: = \frac{loss}{CP} \times 100%$

$= \frac{2000}{100} \\$

= 20 %

3 0

1 year ago

Which symbol creates a true sentence when x equals 3? =, <, >

Zina [86]

Answer:

= is your answer

Step-by-step explanation:

Note the name of the symbols.

"<" means less than

">" means greater than

"=" means equal

"≤" means less than or equal to

"≥" means greater than or equal to

When x equals 3, it means x = 3

8 0

2 years ago

Read 2 more answers

Multiply and simplify: 3a(4a2 – 5a + 12)

DochEvi [55]

3a(4a²-5a+12)

12a³-15a²+36a

~Hope this helped!~

3 0

2 years ago

Please help me with these questions and show how u got them, i will mark you brainliest !

lianna [129]

Answer: 1) 25b 2) ac 3)ba

1) Since b is unknown, your answer will be 25b

2) Since both variables, a and c, are unknown, your answer will be ac

3) Since both are unknown here, it will be ba!

4 0

2 years ago