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3 years ago

Help me on this math question please

Mathematics

2 answers:

seraphim [82]3 years ago

6 0

Answer:

its scientific notification is 5×10^9

disa [49]3 years ago

4 0

Answer:

it would be 5*10 (9)

Step-by-step explanation:

you simply count the number of zeros after the original place holder. :)

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Multiply. 4x2 (2x3 + x2 - 3) A. 8x6 + 4x4 + 12x2 B. 8x6 + 4x - 12x2 C. 8x5 + 4x4 - 12x2 D. 8x5 + 4x4 + 12x2

love history [14]

Answer:

$\boxed{ \bold{\sf{ { \boxed{ \sf{8 {x}^{5} + 4 {x}^{4} - 12 {x}^{2} }}}}}}$

Option C is the correct option.

Step-by-step explanation:

$\sf{4 {x}^{2} (2 {x}^{3} + {x}^{2} - 3})$

Distribute 4x through the parentheses.

$\dashrightarrow{ \sf{4 {x}^{2} \times \: 2 {x}^{3} + 4 {x}^{2} \times {x}^{2} - 4 {x}^{2} \times 3}}$

$\dashrightarrow{ \sf{8 {x}^{5} + 4 {x}^{4} - 12 {x}^{2} }}$

Hope I helped!

Best regards! :D

7 0

3 years ago

PLEASE ANSWER ASAP WORTH 45+ POINTS. FIRST TO ANSWER GETS BRAINLIEST

Arlecino [84]

Answer:

325.28

Step-by-step explanation:

Cross Multlipy

6 0

2 years ago

A rope is 72 feet long what is the length of the rope in yards

monitta

Answer:

The rope is 24 yards.

Step-by-step explanation:

1 yard = 3 feet

therefore

72 ft / 3 = 24

4 0

3 years ago

A speed boat is traveling at 100km/hr. how many hours will it take for the boat to cover a distance of 115?

Oliga [24]

Answer

1.15 hours

Step-by-step explanation:

Assuming 115 is 115 km then you just move the decimal point twice and get 1.15!

For example - (Starting number) 115. (Moving decimal point) 115. -> 11.5 -> 1.15

5 0

3 years ago

A store pays $120 for a television. The store sells the television for $300. What is the percent of the markup

marta [7]

Answer: 150%

Step-by-step explanation:

A store buys a television for $120.

The store then sells the television for $300.

The makeup is the amount they increased the cost price by to get to the selling price.

= 300 - 120

= $180

In percentage terms it is:

= 180/120 * 100%

= 150%

8 0

3 years ago