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3 years ago

Edoardo things of a number between one and 20 that has exactly 5 factors what number is he thinking of

Mathematics

2 answers:

kupik [55]3 years ago

6 0

He is thinking of number ten

Marina86 [1]3 years ago

3 0

The number is 16 because it is divisible by 1, 2, 4, 8, and 16

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Answer the following math question: which place value changed in 6652+600+1000=

STALIN [3.7K]

There are more than one. It is the hundred and thousands place (if you are asking me to add first.)

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3 years ago

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Choose all the fractions that are equivalent to 1/7

valentinak56 [21]

2/14, 4/28, 5 /35, you must divide 2÷2/14/2 = 1/7

and of this form you must divide all the other fractions

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4 years ago

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3. A person standing 3 feet away from the base of a lamp post casts a shadow 4 feet long. If the person is 6 feet tall and walks

german

Answer:

533.33 ft/min

Step-by-step explanation:

We are given that

x=3 feet

y=4 feet

Height of person,h=6 feet

$\frac{dx}{dt}=400 ft/min$

Triangle ABC and A'B'C are similar because all right triangles are similar

By using similarity property

$\frac{h'}{6}=\frac{7}{4}$

$h'=10.5 feet$

$x+y=3+4=7 feet$

$\frac{h'}{6}=\frac{x+y}{y}$

$\frac{10.5}{6}=\frac{x+y}{y}$

$10.5y=6x+6y$

$10.5y-6y=6x$

$4.5y=6x$

Differentiate w.r.t t

$4.5\frac{dy}{dt}=6\frac{dx}{dt}$

$\frac{dy}{dt}=\frac{6\times 400}{4.5}ft/min$

$\frac{dy}{dt}=533.33ft/min$

Hence, If the person is 6 feet tall and walks away from the lamp post at a speed of 400 feet per minute then his shadow moving at the rate 533.33 ft/min

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3 years ago

A number cube is rolled. What is the probability that it will land on a 2 or a 5?

Bezzdna [24]

A cube has 6 sides. 2 and 5 are numbers on 2 of the cube's sides. The probability is therefore 2/6 which simplifies to 1/3 or ~33.3%

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3 years ago

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This graph models the exponential growth of the strain of bacteria. What does the ordered pair (15, 8) represent?

yan [13]

The answer is C.(There are 8 bacteria cells after 15 minutes.)

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4 years ago

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