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3 years ago

Is the number 39 a prime or composite

2 answers:

8 0

Hello.

39 is a composite number.
A prime number can only be divisible by 1, and itself. This is not the case for 39.

1, 3, 13, 39 can fit into it. Thus it is not a prime number.

Bumek [7]3 years ago

4 0

39 is not a prime number

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At 2:00 PM a car's speedometer reads 30 mi/h. At 2:20 PM it reads 50 mi/h. Show that at some time between 2:00 and 2:20 the acce

storchak [24]

Answer:

The correct answer will be "60 min/hour".

Step-by-step explanation:

At time 2:00 PM

A car reads = 30 mi/h

At time 2:20 PM

A car reads = 50 mi/h

Now,

At time 2:00 PM

t = 0

At time 2:20 PM

t = $\frac{1}{3}$

$v(0)=30$

$v(\frac{1}{3})=50$

For MVT,

$v'(c)=\frac{v(\frac{1}{3} -v(0))}{(\frac{1}{3} )}$

$=\frac{20}{\frac{1}{3} }$

$=60 \ min/hour$

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

It might be D but i dont know

FrozenT [24]

Answer:

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8 0

2 years ago

Where is the absolute total frequency located in a two-way frequency table

puteri [66]

D. bottom right
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3 years ago

How many square feet of outdoor carpet will we need for this hole

Fed [463]

Answer:

40 ft²

Step-by-step explanation:

The shape of the outdoor carpet can be decomposed into 2 triangles and 1 rectangle

✔️Area of triangle 1:

Area = ½*bh

b = 6 - 3 = 3 ft

h = 11 - 7 = 4 ft

Area of triangle 1 = ½*3*4 = 6 ft²

✔️Area of triangle 2:

Area = ½*by

b = 2 ft

h = 3 ft

Area of triangle 2 = ½*2*3 = 3 ft

✔️Area of rectangle = L × W

L = 11 ft

W = 3 ft

Area of rectangle = 11 × 3 = 33 ft

✅area of outdoor carpet = 4 + 3 + 33 = 40 ft²

4 0

2 years ago