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Makovka662 [10]
3 years ago
15

Help will give brainliest!!

Mathematics
1 answer:
Lemur [1.5K]3 years ago
8 0

Answer:

∠ TUW = 127°

Step-by-step explanation:

∠ QRU and ∠ TUW are corresponding angles and are congruent , thus

∠ TUW = ∠ QRU = 127°

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A ski hat is priced at 19.50 and a pair of ski boots are priced at 85.50. If the sales tax rate is 7%, then what is the total co
m_a_m_a [10]

Answer:

The total cost of the ski hat and the ski boots is $112.35.

Step-by-step explanation:

First, we need to add the prices of the ski hat and the ski boots.

85.50 + 19.50 = $105

Now, we need to find 7% of $105, and then add it to the total.

105 x 0.07 = $7.35

105 + 7.35 = $112.35

Therefore, the total cost of the ski hat and the ski boots is $112.35.

Let me know if this helps!

3 0
3 years ago
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Butyric acid ( c3h7cooh) is a weak acid . what is the ph of a 0.0250 m solution of this acid. ka = 1.5 x 10-5 (2 decimal places)
Wewaii [24]

The pH of the weak acid is 3.21

Butyric acid is known as a weak acid, we need the concentration of [H+] formula of weak acid which is given by this equation :

[H^{+}]=\sqrt{Ka . Ma}

where [H+] is the concentration of ion H+, Ka is the weak acid ionization constant, and Ma is the acid concentration.

Since we know the concentration of H+, the pH can be calculated by using

pH = -log[H+]

From question above, we know that :

Ma = 0.0250M

Ka = 1.5 x 10¯⁵

By using the equation, we can determine the concentration of [H+]

[H+] = √(Ka . Ma)

[H+] = √(1.5 x 10¯⁵ . 0.0250)

[H+] = 6.12 x 10¯⁴ M

Substituting the value of [H+] to get the pH

pH = -log[H+]

pH = -log(6.12 x 10¯⁴)

pH = 3.21

Hence, the pH of the weak acid c3h7cooh is 3.21

Find more on pH at: brainly.com/question/14466719

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8 0
1 year ago
At the store beef was $27.52 for 2 pounds. If you bought 5 pounds, how much would it cost?
anastassius [24]

Answer:

$68.8

Step-by-step explanation:

27.52/2 = 13.76

13.76 x 5 = 68.8

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3 years ago
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Simon took out an unsubsidized student loan of $43,000 at a 2.4% APR,
BlackZzzverrR [31]

Answer: $241.16

-----------  APEX :)

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3 years ago
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