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3 years ago

LOOK BELOW PLEASE AM MARKING BAINLIST PLEASE GUYS

Mathematics

2 answers:

Harman [31]3 years ago

5 0

Answer:

C) 10

Step-by-step explanation:

hope it helps youuuuuu

Tju [1.3M]3 years ago

3 0

Answer:

i got c) 10

Step-by-step explanation:

(11^2-9^2)*(1/2)^2

(121-81)

40*(1/2)^2

40*0.25

vwala can i have brainliest?

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The sum of the following geometric series. 7-56+448-3,584+... when n=11

faust18 [17]

Answer:

A. 6.681.060.239

Step-by-step explanation:

a1 = 7

r = (-8)

n= 11

S11 = 7((-8)^11 - 1)/ (-8-1)

= -7/9 ( -8,589,934,591)

= 6.681.060.239

6 0

3 years ago

A total of 765 tickets were sold for the school play. They were either adults or students tickets. There were 65 more student ti

Brrunno [24]

Answer: 350 adult tickets

Step-by-step explanation:

(omg I remember this question!)

a stands for the number of adult tickets sold

student tickets : a + 65

the equation for the prob:

765 = a + (a + 65)

solve:

combine 'like terms'

1.) 765 = a + a + 65

2.) 765 = 2a + 65

- 65 - 65

700= 2a

divide by 2

700/2 = 2a/2

(700/2 = 350)

(the "2" in 2a is cancelled out by the other 2)

350 = a

7 0

3 years ago

A recipe calls for 2/3 cups of sugar. I have 5 1/2 cups of sugar. How many batches can I make, assuming I have a large quantity

grandymaker [24]

Answer:

8.25 batches.

(Or, if rounding to the lowest amount of batches, 8 batches)

Step-by-step explanation:

We have in total 5 1/2 cups of sugar.

And the recipe calls for 2/3 cups of sugar.

So, to find out how many batches we can make, we can divide the amount of have by the amount needed. So:

$5\frac{1}{2}\div\frac{2}{3}$

Let's convert the first fraction to improper form. We have 5 1/2. So, in improper form, it will be (5(2)+1)/2 or 11/2.

Therefore:

$=\frac{11}{2}\div\frac{2}{3}$

To divide fractions, we keep, change, and flip. Therefore:

$=\frac{11}{2}\times\frac{3}{2}$

Multiply straight across:

$=\frac{33}{4}=8.25$

So, we can make 8.25 batches.

Or, we can make 8 full batches.

8 0

3 years ago

Y=X2 +_ 3 where do I start ?

sasho [114]

if this is a graph then x2

8 0

3 years ago

How to solve r^2/2r^3 step by step please

ZanzabumX [31]

Can't solve this, because it's not an equation. It's an expression, and I think your goal is to simplify it.

r^2/2r^3 would be better written as

 r^2 r^2
------- = ----------- this should be reduced by cancelling "r^2:"
2r^3 2r(r^2)

1
-------- (answer)
2r

3 0

4 years ago