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tekilochka [14]
4 years ago
10

What is the first step in estimating 56 x 27?

Mathematics
1 answer:
rewona [7]4 years ago
4 0
56 to 60 and 27 to 30
60 times 30 is 1800
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Round the fraction 7 4/5 to the nearest whole number
Over [174]
Im not sure if you are saying 74/5 or 7 and 4 fifths but in the case you'r saying 74/5 you would first round to see the highest number that 5 can go to without being a decimal. Which would be 70 so you would count how many times 5 can go into 70, which would be 14, so the left over is 4/5 so you would check to see if it can be simplified which it can't so the final answer is 14 and 4/5
3 0
3 years ago
Read 2 more answers
Ecuacion de parabola con foco (-2,5) directriz en x=3
Dmitry_Shevchenko [17]

The required equation of the parabola is (y-5)² = 20(x+2)

<h3>Equation of a parabola</h3>

The standard equation of a parabola is expressed as;

(y-k)² = 4p(x-h)

where;

vertex = (h, k)

focus = (p+k, k)

directrix x = -p + h

Note that the directrix given will determine the type of the equation of a parabola

Given the following parameters

focus = (-2, 5) = (h, k)

x = -p + h

3 = p -2

p = 5

Substitute

(y-k)² = 4p(x-h)

(y-5)² = 4(5)(x-(-2))

(y-5)² = 20(x+2)

Hence the required equation of the parabola is (y-5)² = 20(x+2)

Learn more on equation of parabola here; brainly.com/question/4061870

#SPJ1

6 0
2 years ago
13,13,15,27,47,67,97,153,?
Vilka [71]

Answer:

The number sequence that you wrote down is called Fibonacci Sequence __

Step-by-step explanation:

3 0
3 years ago
How many ways are there to paint a set of 27 27 elements such that 7 7 are painted white, 6 6 are painted old gold, 2 2 are pain
Alexeev081 [22]

Answer:

There are 2,480,721,300,000,00 ways to paint this set.

Step-by-step explanation:

We have that:

A set of 27 elements, of which:

7 are painted white

6 are painted old gold

2 are painted blue

7 are painted yellow

5 are painted green

How many ways are there to paint?

A single change in the set, for example, element 0 exchanged with element 1, means we have a new way. So we use the permutations formula to solve this problem:

Permutations

Permutations of a set of x elements divided into sets of size w,y,z.

The number of ways is:

P{x}_{w,y,z} = \frac{x!}{w!y!z!}

In this problem, we have that:

A set of 27 divided into sets of 7,6,2,7,5. So

P{27}_{7,6,2,7,5} = \frac{27!}{7!6!2!7!5!} = 2,480,721,300,000,00

There are 2,480,721,300,000,00 ways to paint this set.

3 0
3 years ago
What is the surface area of the cube?
Marysya12 [62]

Answer:

C

Step-by-step explanation:

Rule: 6*Side (Twice)

= 6*25*25=3750

3 0
3 years ago
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