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3 years ago

Simplify 455 degrees

Mathematics

1 answer:

stealth61 [152]3 years ago

8 0

Answer:

Step-by-step explanation:

(-455)-(-233)+(234)

-455+233+234

(233+234)-455

467-455

12(answer)

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WILL MAKE BRAINLIEST!!Determine if the two triangles are congruent if they are state the postulate or theorem that provides they

Dmitry [639]

Answer:

<h2>Yes they are congruent by SSS criterion </h2>

Step-by-step explanation:

AC=DC. (Given in figure)

AB=BD. (Given in figure

BC=BC. (Common)

that means triangle BAC is congruent to triangle BDC by SSS criterion.

5 0

1 year ago

Please help and give me an explanation I don’t understand or know if it’s correct

andrezito [222]

Hello :) we got similar answers but i believe you made a few distributing mistakes! hopefully my work makes sense, if not i’ll totally try to explain more

p.s i might be too late whoops

p.p.s i’m in a higher grade but i haven’t done this kinda math in a longgg time haha so if you think i did something wrong trust your gut ✌️

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3 years ago

Which of the following best completes the proof showing that ΔWXZ ~ ΔXYZ?

skelet666 [1.2K]

Angles formed by the segment $\overline{XZ}$ in the triangles ΔWXZ, and ΔXYZ, are equal and the given corresponding sides are proportional.

The option that best completes the proof showing that ΔWXZ ~ ΔXYZ is; <u>16 over 12 equals 12 over 9</u>

Reasons:

The proof showing that ΔWXZ ~ ΔXYZ is presented as follows;

Segment $\overline{XZ}$ is perpendicular to segment $\overline{WY}$

∠WZX and ∠XZY are right angles by definition of $\overline{XZ}$ perpendicular to $\overline{WY}$

∠WZX in ΔWXZ = ∠XZY in ΔXYZ = 90° (definition)

$\displaystyle \frac{WZ}{XZ} = \frac{16}{12} = \mathbf{ \frac{4}{3}}$

$\displaystyle \mathbf{ \frac{XZ}{ZY}} = \frac{12}{9} = \frac{4}{3}$

Therefore;

$\displaystyle \frac{16}{12} = \frac{12}{9}$ , which gives, $\displaystyle \mathbf{\frac{WZ}{XZ} }= \frac{XZ}{ZY}$

Given that two sides of ΔWXZ are proportional to two sides of ΔXYZ, and

that the included angles between the two sides, ∠WZX and ∠XZY are

congruent, the two triangles, ΔWXZ and ΔXYZ are similar by Side-Angle-

Side, SAS, similarity postulate.

The option that best completes the proof is therefore;

$\displaystyle \frac{16}{12} = \frac{12}{9}$ which is; <u>16 over 12 equals 12 over 9</u>

Learn more about the SAS similarity postulate here:

brainly.com/question/11923416

4 0

2 years ago

A plane flies with an average velocity of -98.5 m/s for 45.0s what was its displacement

svet-max [94.6K]

Answer:

-4432.5 m . . . or . . . -4.4325 km

Step-by-step explanation:

You can use the formula for average velocity, fill in the given values, and solve for displacement.

average velocity = displacement/time

-98.5 m/s = displacement/(45 s)

Multiply by time:

(-98.5 m/s)(45 s) = displacement = -4432.5 m

_____

Keeping units with the numbers serves as a check on the math. (m/s)·s = m. The units work the same way variables do: they can be multiplied and divided, raised to a power, canceled. If the units of the problem don't work out right, you're probably doing it wrong. (Note, you can only add and subtract numbers that have the same (identical) units--the same rule as for combining like terms.)

7 0

3 years ago

Read 2 more answers

The price of a video game was reduced from $65.00 to $45.00

77julia77 [94]

First, find the difference between the original price and the reduced price;

65 - 45 = $20 difference

Then, divide the difference by the original amount;

20/65 ≈ 0.3077

Then, multiply this by 100 to convert the decimal into a percentage;

0.3077 * 100 = 30.77%

The percent of change would be about 30.77%

3 0

3 years ago