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3 years ago

Help please, If your mom is making a garden and she wants it it be 5 yards how much cm is that

Mathematics

1 answer:

dsp733 years ago

4 0

Answer:

it would be 457.2 cm or if you want it simplified then it would be 457 cm

hope this helped :)

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Kiana wants to cover a triangular area of her background with red, concrete patio stones. Each stone costs $0.42 and covers 29.2

Alex73 [517]

1. The problem says that the stone covers 29.26 square inches. So, the first thing you must do, is to convert 29.26 square inches (in²) to square feet (ft²):

1 in²=0.00694 ft², then:

29.26x0.00694= 0.20 ft²

2. The triangular area has the following surface:

A=bxh/2
A=(6 ft)(8 ft)/2
A=24.0 ft²

3. Finally, the number of stones (N) that cover the triangular area is:

N= 24.0 ft²/0.20 ft²
N=120 stones

Answer: Kiana should buy 120 stones to cover the triangular area in her backyard.

8 0

4 years ago

Which polynomials are listed with their correct additive inverse? Check all that apply.

adoni [48]

Answer:

a, c, d

Step-by-step explanation:

i took the assignment

4 0

3 years ago

PLEASE HELP!! A car manufacturer does performance tests on its cars. During one test, a car starts from rest, and accelerates at

slega [8]

Answer:

0 ≤ t ≤ 25
16.348 seconds
310.0 meters

Step-by-step explanation:

a) Since these are production vehicles, we don't expect their top speed to be more than about 70 m/s, so the distance functions probably lose their validity after t = 25. Of course, t < 0 has no meaning in this case, so the suitable domain is about ...

0 ≤ t ≤ 25

Note that the domain for the second car would be 3 ≤ t ≤ 25.

b) The graph of this system shows the cars will both have driven the same distance after 16.348 seconds.

c) At that time, the cars will have driven 310.0 meters.

_____

Non-graphical solution

If you like, you can solve the equation for t:

d1 = d2

1.16t^2 = 1.74(t -3)^2

0 = 0.58t^2 -10.44t +15.66

t = (10.44 +√(10.44^2 -4(0.58)(15.66)))/(2(0.58)) = (10.44+8.524)/1.16

t = 16.348 . . . . time in seconds the cars are at the same distance

That distance is found using either equation for distance:

1.16t^2 = 1.16(16.348^2) = 310.036 . . . meters

6 0

4 years ago

Hey guys I don’t understand this one so can y’all please help me? :))))

aksik [14]

Answer:

11) c = 16.1

12) c = 11.4

Step-by-step explanation:

11)

a² + b² = c²

8² + 14² = c²

64 + 196 = c²

c² = 260

$\sqrt{c^2} =\sqrt{260}$

c = 16.1

12)

a² + b² = c²

7² + 9² = c²

49 + 81 = c²

c² = 130

$\sqrt{c^2} =\sqrt{130}$

c = 11.4

6 0

3 years ago

Read 2 more answers

What is the value of StartFraction negative 8 (17 minus 12) over Negative 2 (8 minus (negative 2)) EndFraction?

Ahat [919]

Answer:

Step-by-step explanation:

$\frac{-8(17-12)}{-2(8-(-2))} \\=\frac{-8(5)}{-2(8+2)} \\=\frac{-40}{-2(10)} \\=\frac{-40}{-20} \\=2$

6 0

3 years ago