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3 years ago

HELP ME ASAP PLEASE?!? Classify the following triangle as acute, obtuse, or right.

Mathematics

1 answer:

Lyrx [107]3 years ago

3 0

Answer:

obtuse

Step-by-step explanation:

hope it helps. :)

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sesenic [268]

Answer:

Explanation:

7 0

2 years ago

A boat travels 33 miles downstream in 4 hours. The return trip takes the boat 7 hours. Find the speed of the boat in still water

Paha777 [63]

<u>Answer:</u>

Speed of the boat in still water = 6.125 miles/hour

<u>Step-by-step explanation:</u>

We are given that a boat travels 33 miles downstream in 4 hours and the return trip takes the boat 7 hours.

We are to find the speed of the boat in the still water.

Assuming $S_b$ to be the speed of the boat in still water and $S_w$ to be the speed of the water.

The speeds of the boat add up when the boat and water travel in the same direction.

$Speed = \frac{distance}{time}$

$S_b+S_w=\frac{d}{t_1}=\frac{33 miles}{4 hours}$

And the speed of the water is subtracted from the speed of the boat when the boat is moving upstream.

$S_b-S_w=\frac{d}{t_2}=\frac{33 miles}{7 hours}$

Adding the two equations to get:

$S_b+S_w=\frac{d}{t_1}$

+ $S_b-S_w=\frac{d}{t_2}$

___________________________

$2S_b=\frac{d}{t_1} +\frac{d}{t_2}$

Solving this equation for $S_b$ and substituting the given values for $d,t_1, t_2$ :

$S_b=\frac{(t_1+t_2)d}{2t_1t_2}$

$S_b=\frac{(4 hour + 7hour)33 mi}{2(4hour)(7hour)}$

$S_b=\frac{(11 hour)(33mi)}{56hour^2}$

$S_b=6.125 mi/hr$

Therefore, the speed of the boat in still water is 6.125 miles/hour.

6 0

3 years ago

Read 2 more answers

A Chinese restaurant offers buffet takeout for $4.99 per pound. How much does your takeout meal cost if it weighs 0.65 pounds?

sp2606 [1]

T = 4.99(.65) just multiply

6 0

3 years ago

Read 2 more answers

Christine's gross monthly salary at her job

jonny [76]

Answer:

$2587.87 per month

Step-by-step explanation:

The listed deductions are ...

25% withheld for federal income tax
9.3% withheld for California state income tax
6.2% withheld for Social Security tax
1.45% withheld for Medicare Tax
0.9% withheld for SDI- Disability Insurance
5% goes into her retirement 401K account
$150 goes to health insurance/ dental for her family

The percentages have a total of ...

25 +9.3 +6.2 +1.45 +0.9 +5 = 47.85 . . . percent

So, Christine's take-home pay is ...

$5250(1 -0.4785) -150 = $2587.87 . . . per month

7 0

3 years ago

Which of the following is the solution to the equation 2x = 3? Explain your

leonid [27]

Nah you right and wrong

4 0

3 years ago