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ira [324]
3 years ago
7

A 1.5-meter snake lives in the ceiling of a college’s Chemistry Building. One day, she decides to go outside, and slithers throu

gh a pipe at the speed of 15 centimeters per second. In 90 seconds, she slithers all the way through the pipe and her whole body is outside. How long, in meters, is the pipe? Note: 1 meter = 100 centimeters Please help as soon a possible
Mathematics
1 answer:
lubasha [3.4K]3 years ago
7 0

Answer:

The~answer~for~this~question~is:135,000

Step-by-step explanation:

→ It's~quite~simple~actually.~Here~let~me~show~you:

15 × 90=1350

→ Now,~we~take~1350~and~multiply~it~with~100:

1350 × 100=135,000

Easy~isn't?~Hope~this~helped!

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A fish jumps out of water. The function y = −16t 2 + 11t models the height, in feet, of the fish above water after t seconds. A)
romanna [79]

Answer:

A) The fish was out of water for 0.6875 seconds.

B) Maximum height = 5.672

Step-by-step explanation:

Height is modeled by;

y = -16t² + 11t

A) To find total time of the fish out of water, we need to find the x - intercept. That is the points where y = 0

So, 0 = -16t² + 11t

So the roots of this equation are;

t = 0 or 0.6875

Thus,the fish was out of water for 0.6875 seconds.

B) y = -16t² + 11t

The x coordinate of the vertex is at - b/2a

For y = -16t² + 11t

a = -16, b = 11, c = 0

So, -b/2a = -11/(2*-16) = 11/32

The maximum height will be at the y-coordinate of the vertex.

Thus, we need to find f(11/32)

f(11/32) = -16(11/32)² + 11(11/32) = 1.890625 + 3.78125 = 5.671875 ≈ 5.672

6 0
3 years ago
Solve::::::::::::::::<br><img src="https://tex.z-dn.net/?f=%20%5Csf%20%5C%3A%203%28y%20%2B%203%29%20-%2010%20%3D%202y%20%2B%201"
Nataly_w [17]

\sf{\pmb{ANSWER : }}

let the equation be

\sf \: 3(y + 3) - 10 = 2y + 1

\sf \: 3y + 9 - 10 = 2y + 1

\sf \:  3y - 1 = 2y + 1

\sf \:  3y -2y = 1 + 1

\purple {{{\sf y = 2 }}}

https://brainly.in/app/profile/18799022

6 0
2 years ago
Read 2 more answers
How much should you invest at 4% simple interest in order to earn $50 interest in 6 months
LenaWriter [7]
Simple interest formula
Interest = Pit = $50
P=principal (initial investment)
i=annual interest rate = 0.04
t=time in years = 6 months = 0.5 years

Substitute values,
$50 = P*0.04*0.5 
Solve for P
P=$50/(0.04*0.5)=$2500


4 0
3 years ago
14 Type the correct answer in each box. Use numerals instead of words. a Ava, Lucas, and Maria are playing a game where they pas
jeka94

Answer:

  • Maria–Ava: 15.7 feet
  • Lucas–Maria: 10.1 feet
  • angle at Maria: 50°

Step-by-step explanation:

The cosine and tangent functions are useful here. The relevant relations are ...

  Cos = Adjacent/Hypotenuse

  Tan = Opposite/Adjacent

__

The distance from Maria to Ava (ma) is the hypotenuse of the triangle, so we have ...

  cos(40°) = 12/ma

  ma = 12/cos(40°) ≈ 12/0.76604 ≈ 15.7 . . . feet

__

The distance from Lucas to Maria (ml) is the side opposite the given angle, so we have ...

  tan(40°) = ml/12

  ml = 12·tan(40°) ≈ 12·0.83910 ≈ 10.1 . . . feet

__

The angle formed at Maria's position is the complement of the other acute angle in the right triangle:

  M = 90° -40° = 50°

In summary, ...

  • Maria–Ava: 15.7 feet
  • Lucas–Maria: 10.1 feet
  • angle at Maria: 50°

5 0
2 years ago
Simplify the following expression into the form a + bi, where a and b are rational numbers. (4-i)(-3+7i)-7i(8+2i), please help
atroni [7]
9-25i is the answer to your question
7 0
3 years ago
Read 2 more answers
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