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Effectus [21]
3 years ago
10

How to set up an equation to solve for x?

Mathematics
1 answer:
Shtirlitz [24]3 years ago
5 0
Answer

3/5=x/4
x=20/3

Explanation

If we assume that triangle EGH is similar to triangle EFG than side EG in the smaller triangle corresponds to side EF in the larger triangle and also side GH (x) corresponds yo side GF so 3/5=x/4 and then we cros multiply
3x=4*5
3x=20
x=20/3
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Factor completely<br> 9-6a-24a^2
Natasha_Volkova [10]
-24a²- 6a +9 = - 3(8a² +6a - 9)

8a² +6a - 9 =0

x=(-b +/-√(b² - 4ac))/2a
x = (-6 +/-√(36+4*8*9)  /(2*8) = (-6 +/-√(324)  /16 =  (-6 +/-18)/16
x1 =  (-6 +18)/16 = 0.75
x2 =  (-6 -18)/16 = - 1.5

-24a²- 6a +9 = - 3(8a² +6a - 9) = -3(a - 0.75)(a + 1.5)
7 0
3 years ago
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An honest coin is flipped 4 times. Given that the coin landed heads up more than two, what is the probability that it landed hea
arsen [322]

Answer:

probability of getting four head consecutively is 0.2

Step-by-step explanation:

in an experiment coin is flipped 4 times.

given,  coin landed heads up more than two times

outcomes of  coin landed heads up more than two times =

 SAMPLE SPACE :    [ {HHHT}{HHTH}{HTHH}{THHH}{HHHH} ]

chance of getting 4 heads = 1 (HHHH)

Probability = \dfrac{1}{5}

hence the probability of getting four head consecutively is 0.2

5 0
3 years ago
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The two pyramids are similar. Find the volume of the smaller pyramid. Round your answer to the nearest hundredth.
mihalych1998 [28]

Answer:

A) 5.12mm³

Step-by-step explanation:

Step 1

Find the volume of the bigger pyramid

This is a triangular based pyramid.

The formula to use is given as Volume of Pyramid =

1/3 × Area of the triangle × Height

Area of the triangle = 1/2 × 3 mm × 4mm = 6mm²

Volume of the large pyramid = 1/3 × 6mm² × 5mm

= 10mm³

We are given the length of the small pyramid as 4mm

We would be using was is known as scale factor to find the volume of the small pyramid

The scale factor k = (Height of the small pyramid)³/ (Height of the Large pyramid)³

k = 4³/5³

k = Volume of small pyramid/ Volume of large pyramid

Volume of small pyramid = X

Volume of large pyramid = 10mm³

Hence,

4³/5³ = X/10

Cross Multiply

= 4³ × 10 = 5³ × X

X = (4³ × 10)/ 5³

X = 5.12mm³

5 0
3 years ago
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Svetllana [295]

Answer:

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Step-by-step explanation:

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2 years ago
Katelyn can complete 17 integer questions in one minute. Collin can also complete 17 integer questions in one minute. Which expr
BabaBlast [244]

Answer:

a: 17m + m

Step-by-step explanation:

Each one can answer 17 questions in 1 minute.

Each one can answer 17m questions in m minutes.

The total they can answer is 17m + 17m = 34m.

Every expression that is equal to 34m represents the amount they can both answer in the same number of minutes.

The expression we are looking for does not equal 34m.

a: 17m + m  = 18m

b: 34m  = 34m

c: 2(17m)  = 34m

d: 17m + 17m = 34m

Only choice a does not equal 34m.

Answer: a: 17m + m

5 0
3 years ago
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