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DENIUS [597]
3 years ago
5

If 2 is a factor of a number, is that number a prime number? ___________ explain

Mathematics
1 answer:
Nataliya [291]3 years ago
4 0
Yes it is. It is the only even number that is prime that is multiplied by 1.
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Let x=number of cds and y=number of dvds
Elis [28]
X + y = 40.....multiply by -4
4x + 6y = 180
-------------------
-4x - 4y = -160 (result of multiplying by -4)
4x + 6y = 180
------------------add
2y = 20
y = 20/2
y = 10 <===

x = 30

6 0
3 years ago
Please help me, I know it’s not the first one but I think it’s the last one. Can somebody please confirm or deny?
GaryK [48]

Answer:

B. 2.2π m² : 3.2π m²

Step-by-step explanation:

Given:

Slant height (l) = 2.2 m

Diameter (d) = 2 m

Radius (r) = ½(2) = 1 m

Required:

Lateral area and surface area

Solution:

✔️Formula for lateral area of a cone = πrl

Plug in the values

Lateral area of the cone = π*1*2.2

Lateral area = 2.2π m²

✔️ Formula for surface area of a cone = πr(l + r)

Plug in the values

Surface area of the cone = π*1(2.2 + 1)

Surface area = π(3.2)

Surface area = 3.2π m²

The answer would therefore be:

2.2π m² : 3.2π m²

7 0
2 years ago
Lydia earned $9.75 per hour last summer. She worked 25 hours a week. About how much did she earn in 10 weeks.
Goryan [66]
Well $9.75 times 25 hours is $243.75.

Then you take that and multiply it by 10.

So she earned $2,437.5
5 0
3 years ago
Jaden wants to cover a floor with square titles of the same size. The floor measures 315 inches by 108 inches.
padilas [110]
Each tile must be 9 by 9. 

<span>315 / 9 = 35 </span>

<span>108 / 9 = 12 </span>

<span>A = 35 * 12</span>
7 0
3 years ago
Calculate the area of the shapes below.
GREYUIT [131]

Answer:

the answer should be 24ft

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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