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olasank [31]
3 years ago
14

I need help with this please

Mathematics
2 answers:
lesantik [10]3 years ago
4 0
2 rational numbers are C. 2.777 and D. -7/3

a rational number<span> is any </span>number<span> that can be expressed as the quotient or fraction p/q of two integers
</span>
as you know 0.7777 (7 repeat) = 7/9
so 2.777(7 repeat) = 2 7/9
pychu [463]3 years ago
4 0
A rational number is any number that can be expressed as the quotient or fraction of two integers. so i think all of them are rational numbers except B.

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in triangle PQR the measure of angle R=90, QP=73, RQ=55, and PR=48. what is the value of the sine of angle P to the nearest Hund
alexandr402 [8]

Answer:

P ≈ 48.89°(nearest hundredth)

Step-by-step explanation:

The triangle PQR forms a right angle triangle since angle R is 90°. The triangle has an hypotenuse , adjacent and opposite side.

Using the SOHCAHTOA principle one can find the sine ratio of angle P. Let us designate where each side represent.

opposite side(QR) = 55

adjacent side(PR) = 48

hypotenuse(PQ) = 73

sin P = opposite/hypotenuse

sin P = 55/73

P = sin⁻¹ 55/73

P = sin⁻¹ 0.75342465753

P = 48.8879095605

P ≈ 48.89°(nearest hundredth)

5 0
3 years ago
PLEASE ALSO EXPLAIN HOW TO SOLVE THIS. 20 POINTS
eimsori [14]
B.) Hibiscus Street 

The key thing to remember is the slope of the lines. The equation for a line in slope intercept form is
y = ax + b
where
a = slope
b = y intercept

So the equation for Oak Street is y = 2/3x - 7. So it's slope is 2/3. And any street that has the same slope will be given a tree name. And any street that's perpendicular will be given a flower name. You can determine is a line is perpendicular if it has a slope that's the negative reciprocal. So a street that's perpendicular to Oak street will have a slope of -3/2.

Now you've just been given the equation to a new street that's y = -3/2x - 2. Since the slope is -3/2 and Oak street has a slope of 2/3, the new street is perpendicular to Oak street. And given the naming scheme, that means that the new street will have the name of a flower. So let's look at the available street names and pick a flower.
<span>
A.) Weeping Willow Street
* Nope a Weeping Willow is a tree. So this name won't work.
 
B.) Hibiscus Street 
* Yes. A Hibiscus is a flower, so this name is suitable.

C.) Oak Street 
* Nope. Not only is this a tree instead of a flower, but there's already an Oak street. So bad choice.

D.) Panther Street
* Nope, this is an animal, not a flower. Bad choice.

</span>
6 0
3 years ago
Which equation represents a line that is perpendicular to the y-axis?
Sindrei [870]

Answer:

C, y=-8

Step-by-step explanation:

y=-8, is a horizontal line, which makes it vertical to the y-axis

6 0
3 years ago
Isabella drove 8686 miles in 2 2/3 hours If she drove at a constant rate, how far did she travel in one hour? Enter your answer
tangare [24]
3257.25 would be your answer
6 0
3 years ago
Write 49.433 as a mixed number
RoseWind [281]
The answer should be 49 433/1000
3 0
3 years ago
Read 2 more answers
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