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2 years ago

I need help, what is x-4<5

Mathematics

2 answers:

zhenek [66]2 years ago

8 0

Answer:

X would be x < 9

Step-by-step explanation:

You would do this equation like any other equation, but with the equal sign being greater or less than. So you would add 4 on both sides to get x < 9

Tanya [424]2 years ago

7 0

Answer:

X<9

Step-by-step explanation:

So basically in x-4<5 you would add 4 to the other side and that would be 9.

Hence your final answer is x<9.

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I need to find the surface area. it's a cut sphere with a diameter of 14.

alex41 [277]

Given data:

The diameter of the cut sphere, D=14 in.

The radius of the cut sphere is,

$\begin{gathered} r=\frac{D}{2} \\ r=\frac{14}{2} \\ r=7\text{ in} \end{gathered}$

The cut sphere is called a hemisphere.

The surface area of a sphere is

$A_1=4\pi r^2$

So, the lateral surface area of a hemisphere is half the surface area of sphere. Therefore, the lateral surface area of a hemisphere is,

$\begin{gathered} A_2=\frac{4\pi r^2}{2} \\ A_2=2\pi r^2 \end{gathered}$

The hemisphere has a lateral surface and a circular surface. The area of the circular surface is,

$A_3=\pi r^2$

Therefore, the total area of the hemisphere is,

$\begin{gathered} A=A_2+A_3 \\ A=2\text{ }\pi r^2+\pi r^2 \\ A=3\text{ }\pi r^2 \end{gathered}$

The total surface area of a hemisphere is,

$\begin{gathered} A_{}=3\text{ }\pi r^2 \\ A=3\text{ }\pi\times7^2 \\ A=461.8in^2 \end{gathered}$

Therefore, the total surface area of the cut sphere is 461.8 square inches.

6 0

7 months ago

Find the value of x<br>a) 5<br>b) 4<br>c) 6<br>d) 7

Simora [160]

B because 20- 16 equals 4 I guess

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2 years ago

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blondinia [14]

Answer:

i don't now

Step-by-step explanation:

Sorry I couldn't help you

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1 year ago

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2 years ago