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icang [17]
4 years ago
6

On a blueprint, a square with 20 meters per side was shown as a square with 12 centimeters per side. how long would a girder app

ear on the blueprint if the girder is actually 15 meters long?
Mathematics
1 answer:
Tanya [424]4 years ago
3 0
We know that

the  scale factor on the blueprint is-------> 12 cm/20 m------> 3 cm/5 m

if 3cm on a blueprint-------------> represent 5 m in the actual
 X cm---------------------------------> 15 m
X=15*3/5------>X=9 cm

the answer is
9 cm
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Answer:

0.1971 ( approx )

Step-by-step explanation:

Let X represents the event of weighing more than 20 pounds,

Since, the binomial distribution formula is,

P(x)=^nC_r p^r q^{n-r}

Where, ^nC_r=\frac{n!}{r!(n-r)!}

Given,

The probability of weighing more than 20 pounds, p = 25% = 0.25,

⇒ The probability of not weighing more than 20 pounds, q = 1-p = 0.75

Total number of samples, n = 16,

Hence, the probability that fewer than 3 weigh more than 20 pounds,

P(X

=^{16}C_0 (0.25)^0 (0.75)^{16-0}+^{16}C_1 (0.25)^1 (0.75)^{16-1}+^{16}C_2 (0.25)^2 (0.75)^{16-2}

=(0.75)^{16}+16(0.25)(0.75)^{15}+120(0.25)^2(0.75)^{14}

=0.1971110499

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3 0
3 years ago
Help please i can’t figure this out
ehidna [41]
To find the y-intercept: replace x with 0
to find the x-intercept: replace y with 0

x-int:
0 = 10x - 32
32 = 10x
x = 3.2
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y-int:
y = 10(0) - 32
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6 0
3 years ago
Identify the function g(x) that is a vertical stretch by a factor of 6, a shift right 3 units, and
tia_tia [17]
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8 0
3 years ago
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Slav-nsk [51]

Answer:

2 units

Step-by-step explanation:

Vpyramid = ⅓ x base area x height

70 = ⅓ x base area x 6

70 = 2 x base area

base area = 70/2 = 35 units

Vprism = base area x height

70 = 35 x height

height = 70/35 = 2 Units

5 0
3 years ago
Read 2 more answers
Which of the following equations describes the graph?
cluponka [151]

Answer:

Which cone has a volume of 24 7 cm?

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1

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3.5 cm!

4.5 cm

1

6.5 cm

B = 25.4 cm

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7/5 cmi

1

8 cm

3 cm

B = 42

Step-by-step explanation:

3 0
3 years ago
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