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2 years ago

ASAP PLEASE HELPPPPPPPPPPPPPPPPPP MEEEEEEEEEEEEEEE

Mathematics

2 answers:

Ivahew [28]2 years ago

7 0

Answer:

-2/5

Step-by-step explanation:

Just add the top numerator together -4 + 2 = -2

igor_vitrenko [27]2 years ago

6 0

Answer:

-2/5 is the answer

I hope this will help you

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PLEASE I NEED TO TURN THIS IN TOMORROW I NEED HELP PLEASE HELP ME

mart [117]

Answer: $\sum_{n=1}^{5}4^n=1364$

Step-by-step explanation:

Since we have given that

$\sum_{n=1}^{5}4^n$

Now, we know the rule for summation , we'll apply this ,

$\sum_{n=1}^{5}4^n\\=4^1+4^2+4^3+4^4+4^5\\$

Now, it becomes geometric progression, so we us the formula for sum of terms in g.p. which is given by

$S_n=\frac{a(r^n-1)}{r-1}\\\\\text{where 'a' is the first term and 'r' is the common ratio}$

So, our equation becomes ,

$a=4 \\\\r=\frac{a_2}{a_1}=\frac{4^2}{4}=4\\\\S_5=\frac{4(4^5-1)}{4-1}\\\\S_5=1364$

Hence ,

$\sum_{n=1}^{5}4^n=1364$

7 0

2 years ago

Read 2 more answers

Item 31 Simplify (3x3y0x−2)4⋅(y2x−45xy−8)3. Write your answer using only positive exponents. Evaluate any numerical powers. The

madam [21]

Answer:

1032xy + 72

Step-by-step explanation:

(3x3y0x-2)4(y2x-45xy-8)3=

(0-2)×4(2xy-45xy-3)×3=

-2×4(2xy-45xy-3)×3=

-2×4(-43xy-3)×3=

-24(-43xy-3)

1032xy+72

8 0

2 years ago

If Serena selects 4 samples from the table, which row

prisoha [69]

Answer:1: Row 3

2: Row 2

3:6 and 10

Step-by-step explanation:

I just finished doing the assignment

8 0

2 years ago

Read 2 more answers

Can you please help and explain I will give brainliest or thanks

9966 [12]

ok so the answers are going to be in order so..... 12, 3.5, and 31.5. if u need help, yell at me on my profile.

4 0

3 years ago

Solve : 6=m-7/8<br> HELP!!!

motikmotik

Answer:

Step-by-step explanation:

$6=m-\frac{7}{8}\\\\6+\frac{7}{8}=m\\\\\frac{6*8}{1*8}+\frac{7}{8}=m\\\\\frac{48}{8}+\frac{7}{8}=m\\\\\frac{55}{8}=m\\\\m=\frac{55}{8}$

7 0

2 years ago