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Nuetrik [128]
1 year ago
7

Which of the following shows 15 more than a number, written as an algebraic expression?

Mathematics
2 answers:
Nuetrik [128]1 year ago
8 0
15 more than an option as it follows the correct answer would be option (a )15+ n
Nikitich [7]1 year ago
7 0

Answer:

\large\boxed{15+n}

Step-by-step explanation:

Hi!

15 more than a number is written as follows:

\leadsto\boldsymbol{15+n}, Option A.

Have a nice day!

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Complete the solution of the equation. Find the
Ierofanga [76]

Answer:

y = 9

Step-by-step explanation: this is because when x is 5 and is multiplied by -6 u get -30. from there u substratc -30 from -57 and get -27. so y is 9

6 0
3 years ago
Which of the following functions best describes this graph?​
jok3333 [9.3K]
<h3>Answer: Choice C</h3>

Explanation:

The x intercepts or roots are x = 3 and x = 5, which lead to the factors x-3 and x-5 respectively.

Multiplying out those factors gets us this:

(x-3)(x-5)

x(x-5)-3(x-5)

x^2-5x-3x+15

x^2-8x+15

8 0
2 years ago
Make A the subject of the formula<br> r=1<br> А<br> 3
soldier1979 [14.2K]

Step-by-step explanation:

r =  \sqrt{ \frac{А}{3} }

{r}^{2}  =  \frac{А}{3}

А =  3{r}^{2}

HOPE IT HELPS YA

4 0
3 years ago
Find the work required to move an object in the force field F = e^x + y (1, 1, z) along the straight line from A(0, 0, 0) to B(-
DENIUS [597]

\vec F(x,y,z)=(e^x+y)(1,1,z)

is conservative if we can find a scalar function f such that \nabla f=\vec F. This would require

f_x=e^x+y

f_y=e^x+y

f_z=(e^x+y)z

Integrating both sides of the first equation wrt x gives

f(x,y,z)=e^x+xy+g(y,z)

Differentiating both sides of this wrt y gives

f_y=x+g_y=1\implies g_y=1-x\implies g(y,z)=y-xy+h(z)

but we assumed g was a function of y and z, independent of x. So there is no such f and \vec F is not conservative.

To find the work, first parameterize the path (call it C) by

\vec r(t)=(1-t)(0,0,0)+t(-4,5,-5)=(-4t,5t,-5t)

for 0\le t\le1. Then

\vec r'(t)=(-4,5,-5)

and the work is given by the line integral,

W=\displaystyle\int_C\vec F\cdot\mathrm d\vec r=\int_0^1(e^{-4t}+5t,e^{-4t}+5t,-(e^{-4t}+5t)5t)\cdot(-4,5,-5)\,\mathrm dt

W=\displaystyle\int_0^1(125t^2+5t+(25t+1)e^{-4t})\,\mathrm dt=\boxed{\frac{2207}{48}-\frac{129}{16e^4}}

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3 years ago
Which expression is equivalent to 4(3n-5)?​
iren2701 [21]

Answer: 12n - 20

Step-by-step explanation:

3 0
3 years ago
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