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3 years ago

Can somebody help for brainliet

Mathematics

1 answer:

Alenkinab [10]3 years ago

4 0

Multiply the mantissas: 4.2 x 3.7 = 15.54, add the exponents 5+6= 11 so 15.54 x 10^11, BUT WAIT, there can only be one digit in from to the decimal, so 1.554 x 10^12 (add 11 + 1 decimal place change, so 12)

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WILL MARK BRAINLYEST IF YOU ANSWER ALL QUISTIONS

gogolik [260]

Rewrite the fractions as improper fractions:

1. −4 2/5 ÷ (−5)

= -22/5 ÷ −5/1

= -22/5 x -1/5

=22/25

2. −4 4/5÷4

= -24/5 ÷ 4/1

= -24/5 x 1/4

= -6/5

= -1 1/5

3. −2 1/8 ÷ 1 1/4

= -17/8 ÷ 5/4

= -17/8 x 4/5

= -68/40

= -17/10

=-1 7/10

4. −6 7/8 ÷ (−3 3/4)

= -55/8 ÷ -15/4

= -55/8 x -4/15

= 220/40

= 11/6

= 1 5/6

5. −8 3/4÷ 2 1/6

= -35/4 ÷ 13/6

= -35/4 x 6/13

= -210/52

= - 105/26

= -4 1/26

7 0

3 years ago

Which expression is equivalent to 36+18 A: 3(12+6) B:6(6+18) C:3(33+6) D:6(6+2)

mixer [17]

The answer is A.

3(12 + 6) gives you 36 + 18 because 3 times 12 is 36 and 3 times 6 is 18

3 0

3 years ago

Read 2 more answers

I need help please and thank you

AnnyKZ [126]

The answer is s = 2t - 1/2r

5 0

2 years ago

13. If 6 times the 6th term of an A.P. is equal to

romanna [79]

Answer:

see explanation

Step-by-step explanation:

The n th term of an AP is

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given

6(a₁ + 5d) = 13(a₁ + 12d) ← distribute parenthesis on both sides

6a₁ + 30d = 13a₁ + 156d ( subtract 13a₁ from both sides )

- 7a₁ + 30d = 156d ( subtract 30d from both sides )

- 7a₁ = 126d ( divide both sides by - 7 )

a₁ = - 18d

Now

a₁₉ = a₁ + 18d = - 18d + 18d = 0 ← as required

7 0

3 years ago

Please help me with this !

lakkis [162]

Answer: x intercept : (3/2 , 0)

y intercept: (0, -2)

Step-by-step explanation:

6 0

3 years ago