All categories

3 years ago

Which math expression means "the difference of 40 and 12"?

Mathematics

2 answers:

antiseptic1488 [7]3 years ago

5 0

Answer:

Step-by-step explanation:

is C

40-12

olga2289 [7]3 years ago

4 0

Answer:

O C. 40 - 12

difference means the range between the two given values

You might be interested in

I require assistance with this problem.<br> Solve for X:<br> 5/10 + 1/x = 5/6

BabaBlast [244]

Answer:

x = 3

Step-by-step explanation:

Solve for x:

1/2 + 1/x = 5/6

Bring 1/2 + 1/x together using the common denominator 2 x:

(x + 2)/(2 x) = 5/6

Cross multiply:

6 (x + 2) = 10 x

Expand out terms of the left hand side:

6 x + 12 = 10 x

Subtract 10 x + 12 from both sides:

-4 x = -12

Divide both sides by -4:

Answer: x = 3

4 0

4 years ago

Read 2 more answers

A line passes through the point (-9, 4) and has a slope of 2/3.

Flauer [41]

Answer:

y=(2/3)x+10

Hope it helps!

My graph isn't really clear

7 0

3 years ago

Read 2 more answers

In Exercise, find the derivative of the function.<br> y = 3ex - xex

nevsk [136]

Answer:

the question is incomplete, the complete question is "find the derivative of the function $y=3e^{x}-xe^{x}$ "

answer: $\frac{dy}{dx}=(2-x)e^{x}$ .

Step-by-step explanation:

From the equation, $y=3e^{x}-xe^{x}$ , we approach the question using the differentiation of a product and differentiation of a sum simultaneously,

the differentiation of a sum is express as

f(x)=u(x)+v(x)+.....w(x) then

$\frac{df(x)}{dx}=\frac{du(x)}{dx}+\frac{dv(x)}{dx}+...\frac{dw(x)}{dx}.\\$

For the differentiation of a product we have

f(x)=u(x)v(x), then

$\frac{df(x)}{dx}=\frac{dv(x)}{dx}u(x)+\frac{du(x)}{dx}v(x)$

hence if we go by the formula we arrive at

for $y=3e^{x}$

let u(x)=3 hence du/dx=0 and

$v(x)=e^{x}$ and $\frac{dv(x)}{dx}=e^{x}$

hence $\frac{dy}{dx}=3e^{x}+0e^{x}\\\frac{dy}{dx}=3e^{x}---equation 1\\$

Also for $y=-xe^{x}\\\frac{dy}{dx}=-e^{x}-xe^{x}---equation 2$ .

if we add equation 1 and equation 2 we arrive at

$\frac{dy}{dx}=3e^{x}-e^{x}-xe^{x}\\\frac{dy}{dx}=(3-1-x)e^{x}\\\frac{dy}{dx}=(2-x)e^{x}$ .

4 0

3 years ago

Twins James and Jamie are getting bunk beds.their parents picked up the box from ruthand found that has dimensions of 6' x 2' x

Oksana_A [137]

The box with the bunk bed will not fit in the mini van

Step-by-step explanation:

Step 1 :

Given

Length of the cuboid = 6 feet

Width of the cuboid = 2 feet

Height of the cuboid = 3 feet

The diagonal of the cuboid is

$\sqrt{l^{2}+w^{2}+h^{2}} = \sqrt{6^{2}+2^{2}+3^{2}}\\= \sqrt{49}$

= 7 feet

Step 2 :

The utmost length of the diagonal of the box which the minivan can hold is 6.8 feet

The length of the diagonal of the box containing the bunk bed is 7 feet which is greater than 6.8 feet.

Hence the trunk of the mini van cannot hold the bunk bed

5 0

3 years ago

I NEED HELP ASAP! the question is in the picture

kakasveta [241]

Sin30= x/18
•18 •18
18sin(30)=x

8 0

3 years ago