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Shkiper50 [21]
3 years ago
12

Please Help!!! URGENT

Mathematics
1 answer:
NeX [460]3 years ago
5 0

Answer:

i think its #1.

Step-by-step explanation:

Im sorry if its wrong! I really don't do this stuff often...

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An 16 16​-oz jar of peanut butter in the shape of a right circular cylinder is 7 7 in. high and 5 5 in. in diameter and sells fo
olya-2409 [2.1K]

Answer:

Step-by-step explanation:

The formula for determining the volume of a cylinder is expressed as

Volume = πr²h

Where

r represents the radius of the cylinder.

h represents the height of the cylinder.

π is a constant whose value is 3.14

Considering the 16 oz jar,

h = 7 inches

Diameter = 5 inches

Radius = diameter/2 = 5/2

r = 2.5 inches

Volume = 3.14 × 2.5² × 7 = 137.375 inches³

Considering the 29 oz jar,

h = 7.5 inches

Diameter = 5.25 inches

Radius = diameter/2 = 5.25/2

r = 2.625 inches

Volume = 3.14 × 2.625² × 7.5 = 162.27 inches³

1) If the cost is directly proportional to​ volume, then

If 137.375 inches³ cost $1.6

then 162.27 inches³ should cost

(162.27 × 1.6)/137.375 = $1.89

The price of the larger jar would be $1.89

2) If the cost is directly proportional to​ weight, then

If 16 oz cost $1.6, then

29 oz would cost

(29 × 1.6)/16 = $2.9

The price of the larger jar would be $2.9

7 0
3 years ago
Determine whether or not 630 is a triangular number. start with the formula t n = n ( n + 1 ) 2 and then use the quadratic formu
ziro4ka [17]
Triangular sequence = n(n + 1)/2

If 630 is a triangular number, then:

n(n + 1)/2  = 630

Then n should be a positive whole number if 630 is a triangular number.

n(n + 1)/2  = 630

n(n + 1)  = 2*630

n(n + 1)  = 1260

n² + n = 1260

n² + n - 1260 = 0

By trial an error note that 1260 = 35 * 36

n² + n - 1260 = 0

Replace n with 36n - 35n

n² + 36n - 35n - 1260 = 0

n(n + 36) - 35(n + 36) = 0

(n + 36)(n - 35) = 0

n + 36 = 0   or   n - 35 = 0

n = 0 - 36,   or  n = 0 + 35

n = -36, or 35

n can not be negative. 

n = 35 is valid.

Since n is a positive whole number, that means 630 is a triangular number.

So the answer is True.
7 0
3 years ago
Judy is inside a cave at an elevation of 20 meters. She will lower herself in 6 equal descents
alexgriva [62]

Answer:

20-6x<-10

Step-by-step explanation:

Got it right on my test

3 0
3 years ago
Read 2 more answers
Pls help out need answers quick
maw [93]

Answer: answer is 8 because -5 + 1 = -4 then + 10 = 4

8 0
3 years ago
Julie has 50$ which is eight dollars more than twice what john has. How much does john have
nydimaria [60]

Answer:

John has $21.

Step-by-step explanation:

Let John's "wealth" be w.  Then 2w+8 = 50, or 2w = 42, or w = 21.

John has $21.  Eight more than twice this is 42+8 = 50, as expected.

3 0
3 years ago
Read 2 more answers
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