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zubka84 [21]
3 years ago
5

Let a be a rational number and b be an irrational number. Is a + b rational or irrational?

Mathematics
2 answers:
VARVARA [1.3K]3 years ago
8 0

Answer:

Rational

Step-by-step explanation:

Svetlanka [38]3 years ago
4 0

Answer:

irrational

Step-by-step explanation:

because an irrational number goes on forever so no matter what number is added to it it will always be irrational.

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SOLVE THIS PLS JSJSXHHX
madam [21]

Step-by-step explanation:

y = ax + b

I see already the result (y = x/10 × 1/6), but let's go in formally.

we have multiple function points to use to officially calculate a and b.

1/6 = a×10 + b

2/3 = a×40 + b

5/6 = a×50 + b

1 2/3 = a×100 + b

let's e.g subtract equation 1 from equation 3.

4/6 = a×40 + 0

a = 4/40 / 6 = 4 / 240 = 1/60

1/6 = 10/60 + b

1/6 = 1/6 + b

b = 0

so, the function is

y = x/60

x = 25

y = 25/60 = 5/12 cups

5 0
3 years ago
Match each description to the appropriate provider or service.
lys-0071 [83]

Explanation:

<u>Urgent care centers</u>: care for basic needs after regular doctor hours

<u>Hospitals</u>: treat time-sensitive emergencies

<u>Medical specialists</u>: offer treatment in a specific field of medicine, such as cardiology

<u>General practice doctors and nurse practitioners</u>: care for routine medical needs

<u>Crisis pregnancy centers</u>: provide counseling for unplanned pregnancies

__

<em>Discussion</em>

Urgent care centers are often open all hours, but may not be as fully equipped (or staffed) to provide the sort of emergency medicine that a fully-equipped hospital can provide. While a general- or nurse-practitioner can provide routine care, they will consult with specialists when expertise is needed in a specific area.

Various kinds of pregnancy centers can provide counseling and perhaps some medical services for planned or unplanned pregnancies.

6 0
3 years ago
The winning speed in the 2011 Indianapolis 500 was 170.265 miles per hour. What is that speed rounded to the nearest tenth of a
zhannawk [14.2K]

Answer:

170.27

Step-by-step explanation:

6 0
3 years ago
from the top of a tree the angle of depression of a rock on the ground is 49 degrees. If the tree is 18.5 m tall, how far is the
Rashid [163]

Answer:

Step-by-step explanation:

If you were to sit in the very top of said tree and look directly straight, your line of vision would be parallel to the ground. The angle of depression is in between your line of vision and the rock. When you look down at the rock, your line of vision to the rock is a transversal between the 2 parallel lines. With this being the case, the angle of depression is alternate interior with the angle made on the ground from the rock to the top of the tree. See the illustration I attached below.

We are looking for the distance on the ground between the tree and the rock, which we will call x. The side opposite the reference angle is the height of the tree and the side adjacent to the reference angle is x. Side opposite over side adjacent is the tangent ratio. Therefore,

tan(49)=\frac{18.5}{x} and

x=\frac{18.5}{tan(49)} and on your calculator in degree mode, you will find that

x = 16.08 m

Download docx
4 0
3 years ago
Plz help me get the answer ASAP
AnnyKZ [126]

Answer:

<h2>c > 21</h2>

Step-by-step explanation:

-\dfrac{1}{3}c7\qquad\text{multiply both sides by 3}\\\\c>21

8 0
2 years ago
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