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lana [24]
3 years ago
9

In the diagram given below, △DEF∼△DGH, Find q

Mathematics
1 answer:
Kruka [31]3 years ago
7 0

Answer:

q=3

Step-by-step explanation:

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Emily's vacuum cleaner has a power rating of 200 watts. If the vacuum cleaner does 360000 joules of work, how long did Emily spe
MakcuM [25]
To answer this, we need to know the formula of the relationship between the work and the power rating and time.

The formula is:
E(J)<span> = </span>P(W) ×<span> t</span><span>(s)
</span>360000 = 200 * t
t = 360000 / 200
t = 1800 s

So, Emily will spend 1800 seconds in vacuuming. It is also equivalent to 30 minutes.
5 0
4 years ago
Can you help me with this please cause I can't do math!
harina [27]

Answer:

6

Step-by-step explanation:

(3x-5)+(2x-1)+(x+1) = 6x-5 = 31

6x = 36

x = 6

4 0
3 years ago
A cardboard box of 32 in^3 volume with a square base and open top is to be constructed. What is the length of base that will min
stiv31 [10]
Volume = are base*height
32 = x^2*h --> h = 32/x^2

surface area =  4x(32/x^2) + x^2 
SA = 128/x + x^2

SA' = -128/x^2 + 2x = 0
2x = 128/x^2
2x^3 = 128
x^3 = 64
x = 4

surface area minimized when length of base is 4 in.

hope this help
6 0
3 years ago
Read 2 more answers
How do you solve 2y -6x = 8
Firlakuza [10]
Solving for x? X=- -y+4/3

Solving for y? Y=3x+4
5 0
3 years ago
Pls help answer this
Paladinen [302]

Answer: Third option

Step-by-step explanation:

For this exercise it is important to remember the following:

1. By definition, the Associative property of addition states that it does not matter how you grouped the numbers, you will always obtained the same sum.

2. The rule for the  Associative property of addition is the following (given three numbers "a", "b" and "c"):

a + (b + c) = (a + b) + c

Knowing the information shown before, you can identify in the picture attached that the option that illustrates the Associative property of addition is the third one. This is:

(11+8)+1=11+(8+1)

As you can notice that you will always get the same result:

(19)+1=11+(9)\\\\20=20

8 0
3 years ago
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