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2 years ago

Plz help me hdsbsusbd

Mathematics

1 answer:

satela [25.4K]2 years ago

6 0

The area of the circle 171.94 cm (rounded to the nearest whole would be 172 cm)

A= πr²
A= 3.14 (7.4)²
A= 3.14 (54.76)
A= 171.94 cm

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Enter the rational number as a decimal. Then tell whether the decimal is a terminating or a repeating decimal.

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3 years ago

Solve for x. round to the nearest hundredth if necessary.

iris [78.8K]

Answer: $x=11.47$

Step-by-step explanation:

Given the angle of 55 degrees, you know that the adjacent side is "x" and the length of the hypotenuse is 20.

Therefore, you need to remember the following identity:

$cos\alpha=\frac{adjacent}{hypotenuse}$

Then, knowing that:

$\alpha=55\°\\adjacent=x\\hypotenuse=20$

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2 years ago

Triangles 1 and 2 are both isosceles. They each have a 30 degree angle. Explain why these triangles don't have to be similar to

Vladimir79 [104]

Step-by-step explanation:

Triangle 1 can have 30°, 75° and 75° angles whereas Triangle 2 can have 30°, 30° and 120° angles.

Since they do not have all 3 congruent angles, they are not similar.

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3 years ago

What is the answer to 5+5(x+4)≤20?

Nata [24]

$5+5\left( x+4 \right) \le 20\\ \\ 5\left\{ 1+\left( x+4 \right) \right\} \le 20\\ \\ \frac { 1 }{ 5 } \cdot 5\left\{ 1+\left( x+4 \right) \right\} \le 20\cdot \frac { 1 }{ 5 }$

$\ \\ 1+\left( x+4 \right) \le 4\\ \\ 1+x+4\le 4\\ \\ x+5\le 4\\ \\ x\le 4-5\\ \\ x\le -1$

7 0

3 years ago

Read 2 more answers

Francine has a picture that is 5/2 its width. She wants to enlarge the picture to have an area of 490 in2. What will the dimensi

serg [7]

Answer:

Length = 2w

Width= w

2w times w= 241

2W^2=241

Divide by 2

W-^2=121

Sq rt each side

W-= 11 cuz 11 times 11=121

hope this helped

If it did, brainliest would be appreciated!

5 0

3 years ago