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Nookie1986 [14]
3 years ago
13

Ari is painting blocks of wood for a project each block is 8 cm long 4cm wide and 5cm high what is the surface are of each block

?
Mathematics
2 answers:
Elanso [62]3 years ago
3 0
(8+4)*2*4+2(8*4)
=96          +64
=          160
Marizza181 [45]3 years ago
3 0

Ari is painting blocks of wood for a project each block is 8 cm long 4cm wide and 5cm

so,

length=l=8cm

width=w=4cm

height=h=5cm

Since, it is rectangular box

so, we can use surface area formula

SA=2(l*w+w*h+l*h)

now, we can plug values

SA=2(8*4+4*5+8*5)

SA=184cm^2

So, surface area of each block is 184cm^2.................Answer


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Katen [24]

Answer:

  G(3, 1), H(2, 3)

Step-by-step explanation:

When D is the midpoint of EG, it means ...

  D = (E + G)/2

or

  G = 2D -E = 2(3,4) -(3,7) = (2·3-3, 2·4-7) = (3, 1)

Likewise, H is ...

  H = 2D -F = 2(3,4) -(4,5) = (2·3-4, 2·4-5) = (2, 3)

5 0
3 years ago
Anna selects a positive multiple of 4 that is less than forty, and Becky selects a positive multiple of 3 that is less than sixt
Luba_88 [7]

Answer:

3/171

Step-by-step explanation:

The problem can be simplified into finding probability that Anna and Becky select 12 or 24 or 36 which are less than 40 and multiples of 3 and 4.

Probability of Anna selecting 12 = 1/9

Probability of Becky selecting 12 = 1/19

Probability of Anna and Becky selecting 12 = 1/9 * 1/19 = 1/171

Probability of Anna and Becky selecting 12 or 24 or 36 = 3* 1/171 = 3/171

4 0
2 years ago
Circle F is congruent to circle J, and ∠EFD ≅ ∠GJH. Circles F and J are congruent. Line segments F E and F D are radii. A line c
Rzqust [24]

Answer:

mGH=80^\circ

Step-by-step explanation:

Circle F and J are congruent.

\angle DFE \cong \angle GJH

Given that: m∠DFE = 80°

DFE is the central angle of the circle F.

The measure of arc GH is equal to the central angle of Circle J.

Since both circles are congruent

mGH=\angle DFE = 80^\circ

The measure of arc GH is 80 degrees.

8 0
2 years ago
Read 2 more answers
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Answer:

A.)  

240/6.25=d

B.)

Mel would have to sell 39 bags

This is because if we divide 240 by 6.25 we get 38.4

We can not sell .4 bags, so we have to round up

So we have to sell 39 bags

Mel will also have 3.75 dollars left over

C.)

My answer is reasonable. Mel will have to sell 39 bags of dog treats. Since he wants to get 240 dollars, then he must earn 240 dollars. He earns 6.25 per bag. So you need to find out how many bags he needs to sell. To do this, you divide the amount of dollars by the amount you are selling the bags for. So 240 divided by 6.25. To check, you could times 6.25 by 39 and make sure that it i over 240 dollars.

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1.588 times 10 to the negative 1sst power
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Step-by-step explanation:

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