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AURORKA [14]
3 years ago
9

Train A traveled 173 miles in five hours. For Train B, y = 31.35x represents its rate of speed over the same five hours. Which t

rain traveled at a faster rate and by what factor? (round to nearest tenth)
A) Train B by a factor of 3.2 *My answer
B) Train A by a factor of 3.2
C) Train B by a factor of 1.1
D) Train A by a factor of 1.1 *the correct answer?
Can someone explain how D is the correct answer, because I'm really confused :/
Mathematics
1 answer:
sveta [45]3 years ago
7 0

Answer:d

Step-by-step explanation:

Mane

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Solve for x. Round to the nearest hundredth.
Airida [17]

Answer: 32.98^{\circ}

Step-by-step explanation:

Since, By the given diagram,

In quadrilateral ABCD, all angles are right angles ⇒ DC = AB = 15 cm and CB = DA

Also, In triangle DFA,

sin 56^{\circ} = \frac{DA}{DF}

⇒ sin 56^{\circ} = \frac{DA}{16}

⇒ 16\times sin 56^{\circ}=DA

⇒ 13.2646011609\text{ cm} = DA

Now, In triangle, DEC,

tan x = \frac{EC}{DC}

⇒ tan x = \frac{EB-CB}{DC}

⇒ tan x = \frac{EB-DA}{DC}

⇒ tan x = \frac{23-13.2646011609}{15}  

⇒ tanx = \frac{9.73539883912}{15}

⇒ tanx = 0.64902658927

⇒ x = 32.9846428556^{\circ} \approx 32.98^{\circ}



3 0
3 years ago
Round it to the nearest hundredth if necessary 75kg=? Lb
umka2103 [35]
75kg is equal to 165.347 lbs. 
You can find these kinds of questions easily answered with the help of google :)

5 0
3 years ago
(02.05)
kenny6666 [7]

Answer:

......

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3 0
3 years ago
Write.82 as a percent and a fraction.​
Marizza181 [45]

Answer:

82% and 82/100 (or 41/50)

Step-by-step explanation:

multiply 100 times .82 to get the percent

.82 is 82/100

7 0
3 years ago
Is 5.78778777 a rational or irrational number?..
kupik [55]

That number is the ratio of 578,778,777 to 100,000,000 , so it's rational.

Here's a surprising factoid:

ANY number that you can completely write down on paper with digits...
and a decimal point or a fraction bar if you need them ... is rational.

If you can write it down ... without saying "repeating" or using symbols ...
it's rational.


5 0
3 years ago
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