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dmitriy555 [2]
3 years ago
9

A student has taken three math tests so far this semester His scores for the first three tests were 76, 80, and 84

Mathematics
1 answer:
Charra [1.4K]3 years ago
8 0

Answer:

A=96%         B=86%

Step-by-step explanation:

brainlist will be welcomed :))

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Type the correct answer in each box. Use sigma notation to represent the following series for the first 10 terms. 3 + (-6) + 12
klemol [59]

Answer:

Kindly check attached picture

Step-by-step explanation:

Given the following :

First term (a) = 3

Second term = - 6

third term = 12

Fourth term = - 24

We can obtain the common ratio of the series using the relation :

(2nd term/ 1st term) = (3rd term/2nd term) = (4th term/ 3rd term) =....

(-6/3) = (12/-6) = (-24/12)

-2 = - 2 = - 2

Further explanation can be found in attached picture

7 0
3 years ago
((2x^9)(y^n))((4x^2)(y^10))=(8x^11)(y^20)
tino4ka555 [31]

We are given

((2x^9)(y^n))((4x^2)(y^{10}))=(8x^{11})(y^{20})

Firstly, we simplify left side

Left side is

((2x^9)(y^n))((4x^2)(y^{10}))

we will make all x terms together

and y terms together

(2x^9)(4x^2)(y^n)(y^{10})

2\times 4(x^9)(x^2)(y^n)(y^{10})

8(x^9)(x^2)(y^n)(y^{10})

we can multiply left side by using exponent rule

a^m\times a^n=a^{m+n}

8(x^{9+2})(y^{n+10})

8(x^{11})(y^{n+10})

now, we can set them equal

(8x^{11})(y^{n+10})=(8x^{11})(y^{20})

Since, both sides have x,y and 8

and both are equal

so, their exponent must be equal

so, exponent of y must also be equal

we get

n+10=20

n=10................Answer



3 0
3 years ago
Read 2 more answers
1. My little sister, Savannah, Is three years old. She has a piggy bank that she wants to All. She
andrezito [222]

Answer:

5+ (3xn)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is the equation of the line that passes through the point 3,-1 and has a slope of 2
LenaWriter [7]

Answer:

y=2x-7

Step-by-step explanation:

so here's my work

I just plugged stuff in so:

y+1=2(x-3)

y+1=2x-6

y=2x-7

3 0
3 years ago
Help me plzzz with my math
Kipish [7]

Answer:

The answer is A.

Step-by-step explanation:

Hope this helped! :)

5 0
3 years ago
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