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ehidna [41]
3 years ago
9

1. Can √72 be completely simplified if it is broken up as √72=√9x8, explain why or why not?

Mathematics
1 answer:
const2013 [10]3 years ago
6 0
Sqrt72 = sqrt(9x8) = 3sqrt8 = 3(sqrt(4x2)) = 3(2sqrt2) = 6 sqrt(2)

2. sqrt x = x^½. Rules of indices states for a power of a power, you times them.
so (x^28)^½ = x^14
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List the square numbers less than 90 and greater than 50
Setler79 [48]
7^2=49 \ \textless \  50-NOT\\8^2=64-YES\\9^2=81-YES\\10^2=100 \ \textgreater \  90-NOT
5 0
3 years ago
The graph of f(t) = 6.2" shows the value of a rare coin in year t. What is the
seraphim [82]

Answer:

  C.  When it was purchased (year 0), the coin was worth $6.

Step-by-step explanation:

The y-intercept is 6, indicating the value of the rare coin was 6 in year zero.

4 0
2 years ago
WILL MARK BRAINLIEST
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Answer: most likely to be C

Step-by-step explanation:

I can’t see the triangle but I can tell that’s the answer

8 0
3 years ago
Read 2 more answers
What is a = 1/2 (b-c) if b is the subject
natulia [17]

Answer:

b = 2a + c

Step-by-step explanation:

Given

a = \frac{1}{2} (b - c)

Multiply both sides by 2 to clear the fraction

2a = b - c ( add c to both sides )

2a + c = b

5 0
2 years ago
Can someone please help me​
4vir4ik [10]

Answer:

40

Step-by-step explanation:

Two ways we can solve this problem:

1. Graphically

2. Mathematically

Because you already solved it graphically, I will show you how to do so mathematically. Of course, graphically is much much easier and more efficient in this problem.

Let's break the problem down.

First, we are given a graph which contains a slope.

To find slope, we use the technique -> rise/run

Picking 2 obvious points from the graph, we can see

1st point -> (10, 20)

2nd point -> (40, 80)

Now, let's find the slope

\frac{80-20}{40-10}  = \frac{60}{30}  = 2

Now, we have an equation y = 2x, where y = number of pies and x = cups of sugar

We want to find how many cups of sugar we need to bake 80 pies. Simply substitute 80 = number of pies = y

y = 2x -> 80 = 2x

Solving for x, divide both sides by 2

40 = x

We need 40 cups of sugar.

3 0
2 years ago
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