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mylen [45]
3 years ago
7

If the area is 45 meters square, what is the minimum number of square-tiles with sides of 30 cm by 30 cm that are needed to cove

r the patio?
Mathematics
1 answer:
nexus9112 [7]3 years ago
3 0
22500 total
45*100/30=150
Square that = 22500
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I give 20! Find the surface area. And without explanation please, I don’t have enough time.
oee [108]

Answer:

816 cm²

Step-by-step explanation:

Surface area of the composite figure = (surface area of the larger rectangular prism + surface area of the smaller rectangular prism) - area of the side of the smaller rectangular prism that is joined to the bigger prism.

✔️Surface area of the larger rectangular prism:

Area = L*W*H = 20*5*6 = 600 cm²

✔️surface area of the smaller rectangular prism:

Area = L*W*H = 12*4*6 = 288 cm²

✔️area of the side of the smaller rectangular prism that is joined to the bigger prism.

Area = L*W = 12*6 = 72 cm²

Surface area of the composite = (600 + 288) - 72 = 888 - 72 = 816 cm².

8 0
3 years ago
Evaluate f(−3) for f(x)=2x2−x+5.
Natasha2012 [34]

Answer: -4

Step-by-step explanation:

2(-3)*2-(-3)+5= -4

7 0
3 years ago
Benny earns $12.00 per hour as a lifeguard. He earns a bonus of $75.00 for taking a training course. Which graph best represents
Scorpion4ik [409]

Answer:

C.

Step-by-step explanation:

At least means greater than or equal to.

7 0
2 years ago
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Okay this is my last one.. I think dfghmhgfd
Ainat [17]
<h2>○=> <u>Correct option</u> :</h2><h2>\color{plum}\tt\bold{(B)}</h2><h3>○=> <u>Steps to derive correct option</u> :</h3>

We know that :

\color{hotpink} \tt \: circumference \: of \: a \: circle\color{plum} = 2\pi r

So, let the diameter of this circle be x.

Which means :

=\tt2  \times \pi  \times r

=\tt 2 \times x \times \pi = 12\pi

=\tt 2x\pi = 12\pi

=\tt x =  \frac{12}{2}

= \tt \: x = 6 \: m

Thus, the radius of the circle Robert drew = 6 m

Since the circle in option B has a radius of 6 m, it is the circle Robert drew.

▪︎<em>Therefore, the correct option is (B)</em>

8 0
2 years ago
What is 7 1/2 - 4 1/4
GarryVolchara [31]
The answer is 3.25 or 3 1/4
6 0
3 years ago
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