All categories

3 years ago

SOMEONE HELP ME! I WILL MARK AS BRAILY

Mathematics

2 answers:

natali 33 [55]3 years ago

7 0

C, I believe it is, hope it’s right

Aneli [31]3 years ago

5 0

Answer:

im pretty sure its A i hope it is have a good day :)

You might be interested in

Helpppp pleaseee ! i don’t understand

Trava [24]

Answer:

Step-by-step explanation:

It’s same as <5

6 0

2 years ago

Peter is twice the age of Sara. If their total age is 27 years. how old is Sara?

Xelga [282]

Answer:

Just do 27x2 bro simple as that

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Find the value of x 12 5 X

steposvetlana [31]

Answer:

x = 13

Step-by-step explanation:

Note that the side length x is opposite of the right angle, which means that it is the hypotenuse, which will usually be denoted as c.

Set the equation:

a² + b² = c²

let:

a = 5

b = 12

c = x

Plug in the corresponding numbers (& x) to the corresponding variables:

(5)² + (12)² = (x)²

Simplify. First, solve for the power, and then add:

x² = (5²) + (12²)

x² = (5 * 5) + (12 * 12)

x² = 25 + 144

x² = 169

Next, root both sides of the equation:

√x² = √169

x = √169 = √(13 * 13) = 13

x = 13

Note the rules, and it should be easier:

30-60-90° = 1 , √3 , 2

45-45-90° = 1 , 1 , √2

Any other measurements use the equation: a² + b² = c²

5 0

2 years ago

Is the dilation above an enlargement or a reduction

alexgriva [62]

Reduction...........

5 0

3 years ago

What is the radius of a sphere if its surface area is 2,122.64 square inches? (Use 3.14 for π.) 11 in. 13 in. 121 in. 169 in.

crimeas [40]

To solve this, we are going to use the surface are of a sphere formula: $A=4 \pi r^2$
where
$A$ is the surface area of the sphere
$r$ is the radius of the sphere

We know for our problem that $A=2122.64$ and $\pi =3.14$ , so lets replace those vales in our formula:
$A=4 \pi r^2$
$2122.64=4(3.14)r^2$
$2122.64=12.56r^2$
Now, we just need to solve our equation for $r$ :
$\frac{2122.64}{12.56} =r^2$
$r^2=\frac{2122.64}{12.56}$
$r^2=169$
$r=+or- \sqrt{169}$
$r=13$ or $r=13$
Since the radius of a sphere cannot be a negative number, $r=13$ .

We can conclude that the radius of a sphere with surface area 2,122.64 $in^2$ is 13 in.

3 0

3 years ago