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Alexandra [31]
3 years ago
9

7 Rahat has a recipe for muffins that

Mathematics
1 answer:
Alexeev081 [22]3 years ago
8 0

Answer:

the answer is 1

Step-by-step explanation:

if you are splitting the recipe in half then just split the amount of the ingredients in half too

half of the 2 cups of flour would be 1 cup of flour

you would also get 9 muffins instead of 18 muffins

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Please help sorry I’m dumb
Nady [450]
The answer is x = 18
6 0
3 years ago
I want to do this problem in product standard form (5i-3)(2i+1)
Ilia_Sergeevich [38]
<h3>Answer:    -13 - i</h3>

=======================================

Work Shown:

Let x = 5i-3

That allows us to go from (5i-3)(2i+1) to x(2i+1)

Distribute the x through: x*(2i) + x*(1) = 2i*x + x = 2i(x) + 1(x)

Now we replace every x in 2i(x) + 1(x) with 5i-3, and then we distribute a second time

2i(x) + 1(x) = 2i(5i-3) + 1(5i-3)

2i(x) + 1(x) = 2i(5i)+2i(-3) + 1(5i)+1(-3)

2i(x) + 1(x) = 10i^2 - 6i + 5i - 3

2i(x) + 1(x) = 10(-1) - i - 3

2i(x) + 1(x) = -10 - i - 3

2i(x) + 1(x) = -13 - i

Therefore, (5i-3)(2i+1) = -13 - i

The result is in a+bi form where a = -13 and b = -1.

------------------

An alternative method is to use the box method. This is where you set up a grid that helps you multiply out (5i-3)(2i+1)

See the diagram below.

Each of the 4 red terms in the boxes represents the result of multiplying the outer blue and green terms. Example: 5i times 2i = 10i^2 in row1, column1.

7 0
3 years ago
4x^2-20=5 solve by using the square root property
riadik2000 [5.3K]

Step-by-step explanation:

4x^2 - 20 = 5

4x^2 -25 = 0

4x^2 = 25

2x = 5, or -5

x = 5/2 , or -5/2

7 0
3 years ago
A culture of 10 bacteria is started, and the number of bacteria will double every hour. In about how many hours will there be 3,
777dan777 [17]

Answer: it will take 18.2 years

Step-by-step explanation:

We would apply the formula,

y = ab^t

Where

a represents the initial amount of bacteria.

t represents the doubling.

From the information given

a = 10

t = 1 hour

Since after 1 hour, the amount of bacteria multiplies by 2, then

y = 2 × 10 = 20

Therefore

20 = 10 × b^1

Dividing through by 10, it becomes

2 = b

The equation becomes

y = 10(2)^t

For 3,000,000 bacteria, then

3000000 = 10(2)^t

3000000/10 = (2)^t

300000 = (2)^t

Taking log of both sides, it becomes

Log 300000 = tlog2

5.477 = 0.301t

t = 5.477/0.301

t = 18.2 years

7 0
3 years ago
PLEASE HELP! x+14 =14 (its not 0)
Julli [10]
Ummm it’s 0 hehehehe
6 0
4 years ago
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