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3 years ago

What is m Help please!

Mathematics

1 answer:

Stels [109]3 years ago

4 0

9514 1404 393

Answer:

40°

Step-by-step explanation:

The similarity statement tells you that angles W and P have the same measure. The sum of angles in the triangle is 180°, so we have ...

∠R +∠W +∠T = 180°

85° +55° +∠T = 180°

∠T = 180° -140°

∠T = 40°

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Please help thank you!

kotegsom [21]

Answer:

Note that $PQ + QR = PR$ :

Once:

$PR = 15x-11\\PQ=3x+6$

$PQ + QR = PR\\\\(3x+6)+QR=(15x-11)\\\\QR=(15x-11)-(3x+6)\\\\QR=15x-11-3x-6\\\\QR=12x-17\\$

Therefore, the answer is letter B

8 0

3 years ago

A mixture of compounds X and Y in a 0.100-cm cell had an absorbance of 0.215 at 272 nm and 0.191 at 327 nm. Find [X] and [Y] in

Oksi-84 [34.3K]

Answer: The concentration of X is $7.13582\times 10^{-6}$ and the concentration of Y is $2.53159\times 10^{-5}$ .

Step-by-step explanation:

Since we have given that

At 272 nm, absorbance = 0.215

At 327 nm, absorbance = 0.191

As we have given that

Compound X Compound Y

272 16400 3870

327 3990 6420

So, our equations becomes

$16400C_1+3870c_2=0.215\\\\3990C_1+6420C_2=0.191$

By solving these two equations, we get that

$C_1=7.13582\times 10^{-6}\\\\C_2=2.53159\times 10^{-5}$

Hence, the concentration of X is $7.13582\times 10^{-6}$ and the concentration of Y is $2.53159\times 10^{-5}$ .

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4 years ago

Tiffany drove from New York to California over the course of 8 days. Each day, she took a one- hour lunch break and a two-hour d

Goshia [24]

The answer is 1/8 (A)

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3 years ago

Which lists contain only rational numbers? Select all that apply.

taurus [48]

0.865, 0.4444, -6.37, -11.11
Rational are decimals / fractions

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2 years ago

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Which of the following statements is a property of quadrilaterals?

Vaselesa [24]

Answer:

3rd option; 4 corners called vertices

Step-by-step explanation:

self-explanatory

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3 years ago

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