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muminat
3 years ago
7

Please help taking test rn

Mathematics
1 answer:
True [87]3 years ago
7 0

Answer:

Drop Down 1:

Volume

Drop Down 2:

Day

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For every left-handed person, there are about 4-right handed people. If there are 30 students in a class, predict the number of
allochka39001 [22]

Answer:

There are 24 right handed students

Step-by-step explanation:

This is a ratio question so it would be represented as 1:4.

First you would do 1 + 4 which is 5.

Then do 30 ÷ 5 which is 6.

Finally multiply 6 by 4 and 1.

So 6 × 4 × 1 is 24.

So there are 24 students who are right handed.

Hope this makes sense!

4 0
3 years ago
Solve the differential equation. y' + 5xey = 0.
Gwar [14]

Answer:

The solution is     y = - ln(\frac{5}{2}x^{2} + C)

Step-by-step explanation:

To solve the differential equation, we will find y

From the given equation, y' + 5xey = 0.

That is, y' + 5xe^{y} = 0

This can be written as

\frac{dy}{dx} + 5xe^{y} = 0

Then,

\frac{dy}{dx} = - 5xe^{y}

\frac{dy}{e^{y}}   = - 5x dx

Then, we integrate both sides

\int {\frac{dy}{e^{y}}}  =\int {- 5x dx}

\int {e^{-y}dy }}  =\int {- 5x dx}

Then,

-e^{-y} = -\frac{5}{2}x^{2} + C

e^{-y} = \frac{5}{2}x^{2} + C

Then,

ln(e^{-y}) = ln(\frac{5}{2}x^{2} + C)

Then,

-y = ln(\frac{5}{2}x^{2} + C)

Hence,

y = - ln(\frac{5}{2}x^{2} + C)

8 0
3 years ago
PLEASE HELP! 3ND TIME I ASKED THIS!!!
Citrus2011 [14]

Relative to the ground Emma's velocity is 50 m/s + 1 m/s =

Answer: 51 m/s

We don't use that other equation.


4 0
3 years ago
Read 2 more answers
A group of 80 students in a college were surveyed. They are asked which of Spanish or French they are studying. 71 of the studen
Anuta_ua [19.1K]

Answer:

see below

Step-by-step explanation:

80 - 71 = 9

That means 9 studied neither language

25+14 = 39 studied only 1 language

71 - 39 =32

32 studied both

8 0
3 years ago
Find the simple interest, I, and the balance earned or due.
Furkat [3]
I=PRT
I=interest
P=principal
R=rate in deciaml
t=time in years

12 months per year



I=800(0.08)(9/12)
I=(64)(3/4)
I=48

interest earned is $48
8 0
3 years ago
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