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3 years ago

I need help I tried answering this question but I don’t understand

Mathematics

1 answer:

Gnom [1K]3 years ago

8 0

I find it easier to do the actual computation than to try to choose the correct answer from a bunch of alternatives.

You are given the area of a rectangle, as well as the length of one side. To find the length of the other side, you must divide the given side length into the area.

Thus, the unknown side length is

1.403E(-2) cm^2
----------------------- = 0.23E2 cm, or, better, 2.3E1, or 23 cm
6.1E(-4) cm

Now that you have this info, which of the given four steps do you judge to be appropriate and which inappropriate?

You might be interested in

Which inequality has a dashed boundary line when graphed? A y>=3/5x+1 B y>= -1/3x+1 C y>3x+1

Ket [755]

Answer: C y>3x+1

Step-by-step explanation:

When we graph an inequality with strictly greater of less than sign ('<' or '>'), then the graph has a dashed boundary line .
Further it indicates that it does not include the points on the line.

From all the given options , only C contains inequality with '>' sign .

Hence, y>3x+1 is the inequality has a dashed boundary line when graphed.

hence, the correct option is C.

4 0

3 years ago

Please help me. ASAP.Please I need answer step-by-step.

nikitadnepr [17]

so this is how i was taught the inverse function. f(x) is basicly the same thing as saying y

so y=x over x+3

you switch the top x with y so it turns in to x=y over x+3

the problem should tell you what x equals so substitute x with the number it equals and then solve

here is an example f(x)=x over x+3 and x=14

x=y over x+3

14=y over 14+3

the inverse inverse function would probably be just solve the equation so just substitute the number they give you for x in for x

4 0

3 years ago

How did the temperature change if: at first it decreased by 60% and then increased by 80%. PLEASE NEED HELP!

Sergio039 [100]

The temperature decreased by 28%

Step-by-step explanation:

How did the temperature change if :

At first it decreased by 60%
Then increased by 80%

Assume that the temperature before decreasing is 100%

∵ The temperature before decreasing = 100%

∵ It decreased by 60%

→ Before decreasing : decreasing : after decreasing

→ 100% : 60% : 100% - 60% = 40%

∴ The temperature after decreasing = 40%

Assume that the temperature after decreasing is 100%

∵ The temperature after decreasing = 100%

∵ It increased by 80%

By using the ratio method

→ After decreasing : increasing : after increasing

→ 100% : 80% : 100% + 80% = 180%

→ 40% : : x%

By using cross multiplication

∴ 100% × x% = 40% × 180%

- Divide both sides by 100%

∴ x% = $\frac{(40)(180)}{100}$

∴ x% = 72%

∵ At first the temperature = 100%

∵ At last the temperature = 72%

∵ The first the temperature > the last the temperature

∴ The decreasing in temperature = 100% - 72% = 28%

The temperature decreased by 28%

Learn more:

You can learn more about ratio in brainly.com/question/2707032

#LearnwithBrainly

5 0

3 years ago

Can someone help me? :(<br><br>

aleksandr82 [10.1K]

Answer:

0.037037037037037 i think

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

The hypotenuse of a right triangle is 9 inches long and another side is 6 inches. Find the length of the missing side. Round you

olga nikolaevna [1]

A² + b² = c²
a² = c² - b²
a² = 9² - 6²
a² = 81 - 36
a² = 45
a = √45
a ≈ 6.7082
a = 6.7

3 0

3 years ago