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2 years ago

Find the value of: 3 x 5²

Mathematics

2 answers:

notka56 [123]2 years ago

4 0

75;
3x5x5
15x5
!!!75!!!

statuscvo [17]2 years ago

3 0

Answer: 75

HOPE THIS HELPS :)

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What is $9 discounted to $4

Dafna11 [192]

Answer:

123

Step-by-step explanation:

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3 years ago

Tres compañías de navegación pasan por cierto puerto. La primera cada 8 días; la

lilavasa [31]

I think this is a least common multiple question

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2 years ago

Solve the given initial-value problem. the de is of the form dy dx = f(ax + by + c), which is given in (5) of section 2.5. dy dx

shutvik [7]

$\dfrac{\mathrm dy}{\mathrm dx}=\cos(x+y)$

Let $v=x+y$ , so that $\dfrac{\mathrm dv}{\mathrm dx}-1=\dfrac{\mathrm dy}{\mathrm dx}$ :

$\dfrac{\mathrm dv}{\mathrm dx}=\cos v+1$

Now the ODE is separable, and we have

$\dfrac{\mathrm dv}{1+\cos v}=\mathrm dx$

Integrating both sides gives

$\displaystyle\int\frac{\mathrm dv}{1+\cos v}=\int\mathrm dx$

For the integral on the left, rewrite the integrand as

$\dfrac1{1+\cos v}\cdot\dfrac{1-\cos v}{1-\cos v}=\dfrac{1-\cos v}{1-\cos^2v}=\csc^2v-\csc v\cot v$

Then

$\displaystyle\int\frac{\mathrm dv}{1+\cos v}=-\cot v+\csc v+C$

and so

$\csc v-\cot v=x+C$

$\csc(x+y)-\cot(x+y)=x+C$

Given that $y(0)=\dfrac\pi2$ , we find

$\csc\left(0+\dfrac\pi2\right)-\cot\left(0+\dfrac\pi2\right)=0+C\implies C=1$

so that the particular solution to this IVP is

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2 years ago

Expand 4x(7x-11)<br> For maths <br> Help please

harina [27]

Answer:

$28x^2-44x$

Step-by-step explanation:

Use the distributive property.

$4x * 7x = 28x^2$

$4x * (-11) = -44x$

We will get $28x^2-44x$

Hope this helps!

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2 years ago

Which property can be used to expand the expression -27x+7)

Komok [63]

Answer: I think distributive

Step-by-step explanation:

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2 years ago