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Wittaler [7]
4 years ago
12

There are eight fewer boys than girls in Mrs.Davis class. How many boys are in the class?

Mathematics
1 answer:
liraira [26]4 years ago
3 0
G-8=B you can't find out B (boys) until you know how many G (girls) there are in Mrs. Davis's class
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What is the speed of a bobsled who’s distance time graph indicates that it traveled hundred kilometers in 25 seconds
shutvik [7]
The answer would be 4m\s
4 0
3 years ago
Read 2 more answers
A can of nacho cheese has a radius of 8 inches and a height of 4 inches. a can of
tatyana61 [14]

Answer:

8 inches

Step-by-step explanation:

Nacho cheese

v= Pi×radius×2×height

v = 3.14×8×2×4 = 200.96

jalapeño

3.14×4×2=25.12

200.96÷25.12=8

the height is 8

to check your work you can do

(multiply by 8 and see if it equals 200.96)

3.14×4×2×8 = 200.96

since the volume is the same as the volume for nacho cheese we can say that 8 inches for height is correct

8 0
3 years ago
Write the ratios for sin X and cos X. Given that sin is opposite over hypotenuse and
Romashka-Z-Leto [24]
The trigonometric ratios are used for right angle triangle.The basic rule to followed is SOH CAH TOA

SOH means Sinx=opposite/Hyp.
CAH means Cosx = adj./Hyp.
TOA means Tanx = Opp./Adj.

Opposite is the side opposite to the acute angle of the right triangle.

<span>Adjacent is the side Adjacent to the acute angle of the right triangle.
</span>
The longest side in a right triangle is the hypotenuse.

7 0
4 years ago
Solve the given initial-value problem. (x + y)2 dx + (2xy + x2 − 2) dy = 0, y(1) = 1
Yuri [45]
Let's check if the ODE is exact. To do that, we want to show that if

\underbrace{(x+y)^2}_M\,\mathrm dx+\underbrace{(2xy+x^2-2)}_N\,\mathrm dy=0

then M_y=N_x. We have

M_y=2(x+y)
N_x=2y+2x=2(x+y)

so the equation is indeed exact. We're looking for a solution of the form \Psi(x,y)=C. Computing the total differential yields the original ODE,

\mathrm d\Psi=\Psi_x\,\mathrm dx+\Psi_y\,\mathrm dy=0
\implies\begin{cases}\Psi_x=(x+y)^2\\\Psi_y=2xy+x^2-2\end{cases}

Integrate both sides of the first PDE with respect to x; then

\displaystyle\int\Psi_x\,\mathrm dx=\int(x+y)^2\,\mathrm dx\implies\Psi(x,y)=\dfrac{(x+y)^3}3+f(y)

where f(y) is a function of y alone. Differentiate this with respect to y so that

\Psi_y=2xy+x^2-2=(x+y)^2+f'(y)
\implies2xy+x^2-2=x^2+2xy+y^2+f'(y)
f'(y)=-2-y^2\implies f(y)=-2y-\dfrac{y^3}3+C

So the solution to this ODE is

\Psi(x,y)=\dfrac{(x+y)^3}3-2y-\dfrac{y^3}3+C=C

i.e.


\dfrac{(x+y)^3}3-2y-\dfrac{y^3}3=C
6 0
3 years ago
The owner of a new restaurant wants to have seating for more than 75 people. There is currently a private chef’s table that seat
IRINA_888 [86]

Answer:

c) The required representation of the given situation is 4  m + 3  > 75

Step-by-step explanation:

Let us assume, the owner plans to have m tables.

Each table can seat 4 people.

⇒The number of people seated in m tables = m times 4  = 4 m

Also, the additional number of people seated ta chef's table = 3

So, Total seated people in the restaurant

= People seated at m tables + People seated at chef's  table

= 4  m + 3

Now, the seating arrangement  is for more than 75 people.

⇒  4  m + 3  > 75

Hence, the required representation of the given situation is 4  m + 3  > 75

4 0
4 years ago
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