All categories

4 years ago

Subtract 2ab from -2ab

Mathematics

2 answers:

Allushta [10]4 years ago

6 0

Answer:

-4ab.

Step-by-step explanation:

If the temperature is -2 degrees and it goes down another 2 degrees the new temperature is -2-2 = -4.

-2ab - 2ab = -4ab.

Rus_ich [418]4 years ago

4 0

Answer:

-4ab because if you have a balance of negative two dollars and you spend two more dollars you have a balance of negative 4 dollars

Step-by-step explanation:

You might be interested in

The radius of a sphere is 3 inches. Which represents the volume of the sphere?

Mrac [35]

Answer:

Step-by-step explanation:

The volume (V) of a sphere is calculated as

V = $\frac{4}{3}$ πr³ ( where r is the radius )

Here r = 3, thus

V = $\frac{4}{3}$ π × 3³

= $\frac{4}{3}$ π × 27 = 4π × 9 = 36π in³ → b

3 0

3 years ago

Read 2 more answers

⦁ Explain how you could use the construction tool or a compass and straightedge to create a line segment that is twice as long a

lara [203]

Answer:

u can be using it at perpendicular and place it's center on point A

hope that helps a bit-

5 0

3 years ago

Jackson used the process of completing the square to solve the equation 2x2−12x=−6.

Nikolay [14]

Answer:

$x=3-\sqrt{6},x=3+\sqrt{6}$

Step-by-step explanation:

we are given equation as

$2x^2-12x=-6$

Since, we have to solve it by using complete square

so, firstly we will complete square

and then we can solve for x

step-1:

Factor 2 from both sides

$2(x^2-6x)=-3\times 2$

step-2:

Simplify it

$x^2-6x=-3$

step-3:

Add both sides 3^2

$x^2-6x+3^2=-3+3^2$

now, we can complete square

$(x-3)^2=6$

step-4:

Take sqrt both sides

$(x-3)=-\sqrt{6},(x-3)=\sqrt{6}$

step-5:

Add both sides by 3

we get

$x=3-\sqrt{6},x=3+\sqrt{6}$

3 0

3 years ago

Geometry !!! Pls help it’s timed!!

DENIUS [597]

Answer:

the answer is the first choice .

6 0

3 years ago

What is the volume of a cone that has a radius of 4 cm and a height of 9 cm?

vodka [1.7K]

For any sort of pyramid or cone, the volume is 1/3 of the volume of a prism with the same base and height. Since the volume of a prism/cylinder is $V=Bh$ , the volume of a pyramid/cone is $V=\frac{1}3Bh$ .

In this case, our base is a circle, which has a radius of 4 cm.
The area of a circle is $A=\pi r^2$ where r is the radius.
$A=\pi (4)^2=\pi (4\times4)=16\pi=B$

We now know that our base is 16π cm.
We also know that our height is 9 cm.
Let's plug these into our volume formula.

$V=\frac{1}3\times16\pi \times9$

Use 3.14 to approximate pi as the question states. 16 × 3.14 = 50.24.

$V\approx\frac{1}3\times50.24\times9$

We could punch all of that into our calculator to get the same answer, but since 1/3 of 9 is clearly 3, let's just go with that.

$V\approx3\times50.24$

$\boxed{V\approx150.72\ cm^3}$

8 0

3 years ago

Read 2 more answers