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4 years ago

Which is an example of an experiment

Mathematics

2 answers:

Karo-lina-s [1.5K]4 years ago

7 0

Laboratory Controlled Experiments, Field Experiments, & Natural Experiments

Oksanka [162]4 years ago

3 0

They are all examples of an expirement.

You might be interested in

3(58 - 6) - 2(4x + 5)?<br> Which expression is equal to

larisa86 [58]

Answer:

-8x + 146

Step-by-step explanation:

Step 1: Write out expression

3(58 - 6) - 2(4x + 5)

Step 2: Parenthesis

3(52) - 2(4x + 5)

Step 3: Multiply

156 - 2(4x + 5)

Step 4: Distribute

156 - 8x - 10

Step 5: Combine like terms (constants)

-8x + 146

7 0

4 years ago

#81 please!!!!!! I’ll rate you!

natta225 [31]

The circumference of a circle with radius $r$ is

$C=2\pi r$

So, one quarter of a circumference will be

$\dfrac{C}{4}=\dfrac{\pi r}{2}$

You radius is 6, so we have

$\dfrac{C}{4}=\dfrac{6\pi}{2}=3\pi \approx 9.42$

6 0

4 years ago

The hypotenuse of a right triangle measures 7 cm and one of its legs measures 5 cm. Find the measure of the other leg. If necess

blsea [12.9K]

Answer:

4.9

Step-by-step explanation:

We can use the following equation to solve

${5}^{2} + {x}^{2} = {7}^{2}$

Reduce

${x}^{2} = 24$

$x = \sqrt{24}$

or 4.9

8 0

3 years ago

Marta is solving the equation s=2πrh+2πr^2 for h. which should be the result?

Marta_Voda [28]

Answer: First option.

Step-by-step explanation:

Marta needs to subtract $2\pi r^2$ from both sides of the equation:

$s=2\pi rh+2\pi r^2$

$s- 2\pi r^2=2\pi rh+2\pi r^2- 2\pi r^2$

$s- 2\pi r^2=2\pi rh$

Now she needs to divide both sides of the equation by $2\pi r$ , then:

$h=\frac{s- 2\pi r^2}{2\pi r}$

Rewriting:

$h=\frac{s}{2\pi r}-\frac{2\pi r^2}{2\pi r}$

Simplifying, she should get:

$h=\frac{s}{2\pi r}-r$

This matches with the first option.

6 0

4 years ago

Read 2 more answers

(1/4)^x= 256

iren [92.7K]

X= -4
Work: 1^x/4^x=256
1^x= 256 * 4^x
In 1^x = In 256 * 4^x
xIn1 = In 256+ In4^x
x*0= xIn 4 + In 2^8
0= xIn 2^2 + 8In 2
x In 2^2 + 8In 2 =0
x* 2In 2 + 8In 2=0
2In 2x + 8In 2=0
2In 2x = -8In 2
x= -8/2
x=-4

7 0

3 years ago