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Vladimir79 [104]
2 years ago
9

In a hostel, 120 students had provisions of food for 60 days. After 20 days, some students were added to the hostel, the provisi

on of food finished 10 days ago earlier. How many students were added?​
Mathematics
1 answer:
DochEvi [55]2 years ago
8 0

Answer:

If I'm right, the answers should be 40.

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Find all angle measures
Natali [406]

Answer:

1=90

2=68

3=112

4=112

5=68

6=68

7=112

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3 0
3 years ago
What is the solution to the equation below? √x - 4 = -2 O A. X=& O B. X=4 X = 4 C. x = 6 D. X = 2
saul85 [17]

Answer:

x = 4

Explanation:

Given the expression;

\sqrt[]{x}-4\text{ = -2}

Add 4 to both sides

\begin{gathered} \sqrt[]{x}-4+4\text{ = -2+4} \\ \sqrt[]{x}=\text{ 2} \end{gathered}

Square both sides

\begin{gathered} (\sqrt[]{x})^2=2^2 \\ x\text{ = 4} \end{gathered}

Hence the value of x is 4

undefined

5 0
1 year ago
A supermarket sells two flavors of cereal: a fruit flavor and a chocolate flavor. In a market survey, the event that a customer
Sedaia [141]
This is a binomial distribution.
p = 0.71, q = 1 - p = 1 - 0.71 = 0.29, n = 20

P(x ≤ 19) =1 - P(x = 20) = 1- 20C20 x (0.71)^(20 - 20) x (0.29)^20 = 1 - 0.29^20 = 1 - 0 = 1
4 0
3 years ago
Show that the maximum rate of change, with respect to radius, of the volume of a deflating balloon is four times the sphere's in
dmitriy555 [2]

Step-by-step explanation:

Let's say R is the initial radius of the sphere, and r is the radius at time t.

The volume of the sphere at time t is:

V = 4/3 π r³

Taking derivative with respect to radius:

dV/dr = 4π r²

This is a maximum when r is a maximum, which is when r = R.

(dV/dr)max = 4π R²

This is 4 times the sphere's initial great circle area, but not the great circle circumference.  The problem statement contains an error.

7 0
3 years ago
Hey can you please help me posted picture of question
juin [17]
For this case we can have the following function:
 r = f (t)
 Where,
 Independent variable is t.
 Dependent variable is r.
 To find the inverse we solve for the independent variable, that is, the data entry variable.
 Answer:
 
FALSE
 
option B
6 0
3 years ago
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