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krok68 [10]
3 years ago
7

Andrea needs a new air conditioning system for her house. An air conditioner needs to

Mathematics
1 answer:
stiv31 [10]3 years ago
6 0

Answer: 29400

Step-by-step explanation:

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the ratio of teacher to learners in a school in oluno is 1:35 .If there are 30 teachers in the school , how many learners are th
miskamm [114]

Answer:

1050

Step-by-step explanation:

There are 30 teachers.

1:35

Multiply each part of the ratio by 30.

1×30:35×30

30:1050

There are 1050 learners.

7 0
3 years ago
Alabama Instruments Company has set up a production line to manufacture a new calculator. The rate of production of these calcul
umka21 [38]

Answer:

The number of calculators is 4871

Step-by-step explanation:

If we integrate dx/dt we get x, which is the number of calculators. To find the number of calculators between the beginning of third week to the end of fourth week (the beginning of fifth week), this integration must be evaluated at t between 3 and 5.

x=\int\limits^5_3 {\frac{dx}{dt}} \, dt =\int\limits^5_3 {5000(1-\frac{100}{(t+10)^2})} \, dt

the result of the integration is:

x=5000(t+\frac{100}{t+10}) to be evaluated between 3 and 5, which is:

x=5000(5+\frac{100}{5+10})-5000(3+\frac{100}{3+10})=\frac{190000}{39}=4871.8

6 0
3 years ago
HELP ASAP!! (picture above)
lilavasa [31]
To calculate minimum value, do -b/2a to get the x-value, and plug it in to get the y-value: 

-6/8 = -3/4

4 *  (-\frac{3}{4} )^{2} + 6 (-\frac{3}{4} ) - 18 =  \frac{9}{4} -  \frac{9}{2} - 18 =  - \frac{81}{4}

So the minimum value of g(x) is -81/4

This shows that g(x) has a lesser minimum value than f(x)


5 0
3 years ago
Which situation is the best example of a pure competition market?
jok3333 [9.3K]

Answer:

a

Step-by-step explanation:

they have to win over the same customers

7 0
3 years ago
Read 2 more answers
If you know the names of the remaining nine students in the spelling​ bee, what is the probability of randomly selecting an orde
rjkz [21]
The probability of getting the correct order in the spelling bee is 1 chance in 362,880.

This is a permutation problem. Our goals is to find the total number of ways that the 9 students can be ordered.

For the first spot there are 9 choices, then 8 choices, then 7 choices....

We need to evaluate:
9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 = 362,880

Another way to write this is: 9!
8 0
3 years ago
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