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3 years ago

What’s the answer to this?

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

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Can someone help me please

OleMash [197]

Answer:

<h3> $\boxed{ \bold{ \huge{ \boxed{ \sf{ {12.56 \: {mm}^{2} }}}}}}$ </h3>

Step-by-step explanation:

Given,

Radius ( r ) = 2 mm

pi ( π ) = 3.14

Finding the area of circle having radius of 2 mm

Area of circle $\sf{ = \pi \: {r}^{2} }$

plug the values

⇒ $\sf{3.14 \times {2}^{2} }$

Evaluate the power

⇒ $\sf{3.14 \times 4}$

Multiply the numbers

⇒ $\sf{12.56 \: {mm}^{2} }$

Hope I helped!

Best regards!!

4 0

2 years ago

Plz help me i need it

Nimfa-mama [501]

Answer: $\bold{d)\quad f^{-1}(x)=\dfrac{e^x}{5}}$

Step-by-step explanation:

To find the inverse, swap the x's and y's and solve for y. Note: f(x) is y

$y = ln(5x)\\\\\text{Swap the x's and y's:}\\x=ln(5y)\\\\\text{Apply e to both sides:}\\e^x=e^{ln(5y)}\\\\e^{ln}\ \text{cancels out:}\\e^x=5y\\\\\text{Divide both sides by 5:}\\\dfrac{e^x}{5}=y\\\\\large \boxed{f^{-1}(x)=\dfrac{e^x}{5}}$

8 0

3 years ago

Please solve the question

andreyandreev [35.5K]

Answer:

$g(-1) = -1$

$g(0.75) = 0$

$g(1)= 1$

Step-by-step explanation:

Given

See attachment

Solving (a): g(-1)

We make use of:

$g(x) = -1$

Because: $-1 \le x < 0$ is true for x =-1

Hence:

$g(-1) = -1$

Solving (b): g(0.75)

We make use of:

$g(x) = 0$

Because: $0 \le x < 1$ is true for x =0.75

Hence:

$g(0.75) = 0$

Solving (b): g(1)

We make use of:

$g(x) = 1$

Because: $1 \le x < 2$ is true for x =1

Hence:

$g(1)= 1$

5 0

3 years ago

Solve each system of inequalties by graphing.

nordsb [41]

Start by graphing each line.

• Because the first inequality is smaller than, it will have a dotted (- - -) line.

• Because the second inequality is smaller than or equal to, it will have a solid line (---).

Then, plug in points to see where your shading will go. If the statement is true (x = x), you will shade that area along the line.

$y < 3x + 2$

$(0) < 3(0) + 2$

$0 < 2$

0 is less than 2.

Do the same step for the other equation. Your solution to the problem is any point that lies between the shading from both inequalities (where the blue and red meet).

8 0

3 years ago

Un estudiante de Astronomía sabe que Venus le da la vuelta al Sol 225 días y Marte 687 días . Si sabe que la última vez que v s

Jet001 [13]

The student of astronauts u know that

3 0

2 years ago