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3 years ago

How many triangles can be constructed with side lengths of 7 cm, 10 cm, and 18 cm?

Mathematics

2 answers:

Phoenix [80]3 years ago

5 0

Answer:

a zero

Step-by-step explanation:

it is because it can not be equal to or less then other wise it will not work it has got to a higher and 7+10 is 17 not 18 so a

lora16 [44]3 years ago

3 0

B. Only one can be made but can be rotated to look like different.

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Find the value of n.<br> 389n = 0

NikAS [45]

Answer:

$\pmb{n=0 }$

Step-by-step explanation:

we have to find the value of n in this given equation.

389n=0

n=0/389

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3 years ago

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An architect designs a rectangular flower garden such that the width is exactly two-thirds of the length. If 340 feet of antique

KIM [24]

Answer:

The dimensions of the garden is 102 feet by 68 feet

Step-by-step explanation:

Here, we want to get the width and length of the garden

The perimeter is represented by the length of the fencing

From the question;

w = 2l/3

The formula for the perimeter is;

P = 2(l + w)

Thus;

340 = 2(l + 2l/3)

170 = (l + 2l/3)

Multiply through by 3

510 = 3l + 2l

5l = 510

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w = 2/3 * l

w = 2/3 * 102

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3 years ago

The amount a spring will stretch varies directly with the amount of weight attached to the spring. If a spring stretches 2.1 inc

aleksklad [387]

Answer:

$1.05\ in$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

Let

x -----> the amount of weight

y ----- the amount a spring will stretch

we know that

For x=80 lb, y=2.1 in

<em>Find the value of k (constant of proportionality)</em>

$k=y/x$

substitute the values

$k=2.1/80$

The linear equation is

$y=(2.1/80)x$

How far will it stretch when 40 pounds is attached?

For x=40 lb

substitute the value of x in the linear equation and solve for y

$y=(2.1/80)(40)=1.05\ in$

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4 years ago

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Anon25 [30]

Answer:

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Step-by-step explanation:

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3 years ago

Only 23 out of 50 people in the class passed the exam. What percent of the class passed the exam?

Black_prince [1.1K]

Answer:

46%

Step-by-step explanation:

For percents, we want to make the number out of 100. 23/50 is the same as 46/100. From fraction knowledge, 46/100 is 46%.

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3 years ago

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