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slava [35]
2 years ago
12

work out an estimate for the number of boxes of grass seed Helen needs.to find your estimate, round each of the numbers in your

working to 1 significant figure. you must show your working
Mathematics
1 answer:
Dima020 [189]2 years ago
3 0

Answer:

A circle is a bounded object with points from its center to its circumference is equidistant.

Area of a circle = πr²

Where :

π = pi = 3.14

R = radius = diameter / 2 = 20m / 2 = 10m

3.14 x 10² = 314m²

Number of boxes needed to cover the garden = area of the garden / coverage of one box

314m² / 58m² = 5.14

5 boxes to one significant figure

<h2>Brainliest pls</h2>

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According to the fundamental theorem of algebra how many roots exist for the polynomial function f(x)=8x^7-x^5+x^3+6
mojhsa [17]

Answer:

7

Step-by-step explanation:

This is a 7th degree polynomial.  There should be 7 roots.  Note how degree of poly = number of roots.

5 0
3 years ago
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For the function f(x)=(7-8x)^2, find f^-1 determine whether f^-1 is a function
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Is this question correct ?

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Una gruesa de lapices(144 unidades) cuesta $6.800. Cuanto cuestan 450 lapices
irina [24]
Write and solve an equation of ratios:

$6,800                x
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3 0
3 years ago
Three times the sum of a number and seven is 23 less than five times the number find the number wrong your answer to the nearest
mote1985 [20]

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4 0
3 years ago
Plz help I will give anyone who answers this correctly 100 points.
dsp73

Answer:

126.

Step-by-step explanation:

Each rectangle is a step. We'll start with the top one. This is simple: 6 times 3.

6 * 3 = 18.

The farthest left is 5 times 3.

5 * 3 = 15.

The crossed one is 6 times 5.

6 * 5 = 30.

The one to the right of the crossed one is 3 times 5, again.

3 * 5 = 15.

The farthest right is 6 times 5, again.

6 * 5 = 30.

The bottom one is 6 times 3, again.

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Now, we add.

18 + 18 = 36.\\15 + 15 = 30.\\30 + 30 = 60.\\36 + 30 + 60 = 126.

8 0
3 years ago
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