All categories

3 years ago

3х - 42х -74x - 27- 33

Mathematics

1 answer:

solmaris [256]3 years ago

4 0

Answer:

3x4-4=

Step-by-step explanation:

You might be interested in

Which expression is equivalent to 5(8 + 9)?

lord [1]

Im just going out on a wing here but is one options 40 + 45

7 0

3 years ago

Read 2 more answers

Use each diagram to solve x

alekssr [168]

6x+3=45

6x+3-3=45-3

6x= 42

Divide by 6 for 6x and 42

6x/6= 42/6

x= 7

Check answer by using substitution method

6x+3= 45

6(7)+3= 45

42+3= 45

45= 45

The answer is x= 7

4 0

4 years ago

Read 2 more answers

Evaluate the following expression (-3)^-2

OleMash [197]

<h3>Answer: the fraction 1/9</h3>

It is approximately equal to 0.1111

=================================

To get this answer, we use the rule

$x^{-k} = \frac{1}{x^k}$

The negative exponent tells us to apply the reciprocal to get the exponent to be positive.

So,

$(-3)^{-2} = \frac{1}{(-3)^2}\\\\(-3)^{-2} = \frac{1}{9}$

Squaring -3 means you square the negative as well

$(-3)^2 = (-3)*(-3) = 9$

8 0

3 years ago

Read 2 more answers

The height of a can of coke is in 11 cm and the radius is 6 cm calculate the total surface area of the can in cm^3 assuming that

Fofino [41]

Answer:

The total surface area of the the cylinder is 640.56cm², surface are is always give in cm² not in cm³ b/c cm³ indicates the volume of the cylinder not the surface area.

Step-by-step explanation:

Hello!

. SA=2πr(r+h) ,or 2πr²+h(2πr)

SA=2(3.14)(6cm)(6cm+11cm)
SA=6.28(6cm)(17cm)
SA=37.68cm(17cm)
SA=640.56cm²

6 0

2 years ago

Read 2 more answers

Find the distance between the two points.

Ksenya-84 [330]

Hey there!

Distance formula:

d = $\sqrt{(x_{2}-x_{1})+(y_{2}-y_{1}) }$

Plug in variables:

d = $\sqrt{(0-(-6))+(0-(-7))}$

Simplify.

d = $\sqrt{6+7}$

d = $\sqrt{13}$

The distance between the two points is $\sqrt{13}$ units.

Hope this helps!

4 0

4 years ago

3х - 42х -74x - 27- 33​

3х - 42х -74x - 27- 33