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2 years ago

What is the value of

Mathematics

1 answer:

SashulF [63]2 years ago

4 0

Answer:

A. 7

Step-by-step explanation:

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In a class, every student knows French or German (or both). 15 students know French, and 17 students know German.

vazorg [7]

If you apply the or both
Only 1 of the students would need to know the "or both", therefore maximizing the remaining amount of students you can put in.

Gerald, let's call him, knows French AND German, so there's only one less student that knows french and german. Gerald is 1 student.

MAXIMUM:
There are now 14 monolinguistic French speakers and 16 monolinguistic German's, 30 students + Gerald=31.

Minimum:
As a bonus, the minimum is 15 students knowing french AND German and only 2 monolinguistic German speakers, so 17.

8 0

2 years ago

Read 2 more answers

17 POINTS PLEASE HURRY !!

Elena L [17]

Answer:

Step-by-step explanation:

Hope this helps!

5 0

2 years ago

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Find dy/dx any one <br>x=acost , y=asint

dangina [55]

Answer:

$x=a \cos t \implies \dfrac{dx}{dt}=-a \sin t$

$y= a \sin t \implies \dfrac{dy}{dt}=a \cos t$

Using the chain rule:

$\begin{aligned}\implies \dfrac{dy}{dx} & =\dfrac{dy}{dt} \times \dfrac{dt}{dx}\\\\& = a \cos t \times \dfrac{1}{-a \sin t}\\\\& = \dfrac{a \cos t}{-a \sin t}\\\\& = - \dfrac{\cos t}{\sin t}\\\\& = - \cot t\end{aligned}$

8 0

1 year ago

David has a bag of coins. The bag contains 7 dimes, 2 nickels, and 6 pennies. He will randomly select 2 coins from the bag one a

luda_lava [24]

Answer:

7/15 for dime

6/15 for pennies

Step-by-step explanation:

7/15 because 7+2+6=15 and there are 7 dimes so 7/15.

6/15 because there are 15 coins and there are 6 pennies so 6/15.

15 is the total so 7 and 6 have to go over it.

5 0

2 years ago

14/y=112/72,what is y someone pls help

Natalija [7]

Answer:

Step-by-step explanation:

14/y=112/72

simplify 112/72 into 14/9

14/y=14/9

y=9

8 0

2 years ago

What is the value of​

What is the value of