All categories

2 years ago

8x(40+7)=(8x )+(8x7 what is the missing number

1 answer:

6 0

Well since the first expression says 8x(40+7) the answer would be 40 that is missing

Since your splitting 47 into 40 and 7 and multiplying both of them by 8 the answer would be 40

You might be interested in

Find the area of the part of the paraboloid z = 9 - x^2 - y^2 that lies above the xy-plane.

svetoff [14.1K]

Parameterize this surface (call it $S$ ) by

$\vec r(u,v)=u\cos v\,\vec\imath+u\sin v\,\vec\jmath+(9-u^2)\,\vec k$

with $0\le u\le3$ and $0\le v\le2\pi$ . Take the normal vector to $S$ to be

$\vec r_u\times\vec r_v=2u^2\cos v\,\vec\imath+2u^2\sin v\,\vec\jmath+u\,\vec k$

Then the area of $S$ is

$\displaystyle\iint_S\mathrm dA=\iint_S\|\vec r_u\times\vec r_v\|\,\mathrm du\,\mathrm dv$

$=\displaystyle\int_0^{2\pi}\int_0^3u\sqrt{1+4u^2}\,\mathrm du\,\mathrm dv$

$=\displaystyle2\pi\int_0^3u\sqrt{1+4u^2}\,\mathrm du=\boxed{\frac{37\sqrt{37}-1}6\pi}$

3 0

3 years ago

Which of the following functions has a graph that is a line?

Semmy [17]

Answer:

Step-by-step explanation:

f(x)=x is a line.

3 0

3 years ago

What is 10kg in pounds

SashulF [63]

Answer:

2.2 pounds per kilogram so:

10x2.2=22 pounds

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

N plus one half equals sevens four

White raven [17]

$N: n \\ plus = + (addition/add) \\ OneHalf: \frac{1}{2} \\ equals: = \\ SevenFourths: 7.4 \\ \\ \\ Problem/Answer: n + \frac{1}{2} = 7.4$

$good \\ luck \\ on \\ assignment \\ \\ \\ \\ enjoy \\ your \\ day! \\ \\ \\ \\ \\ \\ MeIsKaitlyn$

8 0

3 years ago

if the store purchased a kitchen appliance for $42 and sold it for $58.80, what was the percent markup?

oksano4ka [1.4K]

Answer:

40%

Step-by-step explanation:

Percent markup = new price - original price/original price

Do the subtraction first.

58.80 - 42.00 = 16.80

Now do the division

16.8/42 = 0.40

Change the decimal to a percent by moving the decimal two place to the right.

0.40 = 40%

6 0

2 years ago