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Lady bird [3.3K]
3 years ago
7

If x is positive, what is the value of \small \sqrt{x} ?

Mathematics
2 answers:
Vera_Pavlovna [14]3 years ago
8 0
The correct answer will be A
Lubov Fominskaja [6]3 years ago
5 0
The right answer will be A
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Write each phrase as a variable expression:<br><br> 9 subtracted from x
Schach [20]

Answer:

9-x

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
86 is 45% of what number
Alik [6]
Hello there! We are talking about 86 being part of a number, so we are looking for the whole. To find the number we are looking for, we can write and solve a proportion. Set it up like this:

86/x = 45/100

86 is 45% of a number. We know the part, so now we are looking for the whole. 45% is part of 100%, so we put that part together. Cross multiply the digits. 100 * 86 is 8,600. 45 * x is 45x. That simplifies to 8,600 = 45x. Now, divide each side by 45 to isolate the x. 45x/45 cancels out. 8,600/45 is 191.1111111 or 191 1/9 in fraction form. There. x = 191 1/9 86 is 45% or 191 1/9

Note: Or, if you have to round to the nearest whole number, the answer is 191, or if you have to round to the nearest tenth, the answer is 191.1. It all depends on if the answer needs to be rounded or exact.
4 0
3 years ago
A, b and c are the sides of a right triangle, where side a is across from angle a, side b is across from angle b, and side c is
Vera_Pavlovna [14]
<span>Find missing length :
</span>
a² + b² = c²
c² = 19² + 34²
c² = 1517
c = √1517
c = 38.95 units.


Find missing angle A:

\dfrac{a}{\sin(a)} =  \dfrac{c}{\sin(c)}

\dfrac{19}{\sin(a)} =  \dfrac{38.95}{\sin(90)}

\sin(a) = 0.488

a = sin^{-1} (0.488)

a = 29.2 \textdegree


Find Missing B:

\dfrac{b}{\sin(b)} = \dfrac{c}{\sin(c)}

\dfrac{34}{\sin(b)} = \dfrac{38.95}{\sin(90)}

\sin(b) = 0.873

b = sin^{-1}(0.873)

b = 60.8 \textdegree


Answer: Missing length =  38.95 units ; Missing angles =  29.2°  and  60.8° 

8 0
3 years ago
A person is going to fly from New York to Rio de Janeiro. If he leaves at 1:00 p.m., Eastern Standard Time and the filght
vesna_86 [32]

Answer:

8:30

Step-by-step explanation:

At 12:00 (noon) In New York, It is 2:00 pm in Rio De Janerio.

That if he left at 1 in NY it would've been 3 in Rio, 3+5.5=8.5

Which is 8:30 pm. Hope this helped!!

8 0
3 years ago
Which expression is equivalent to 73•7-5
Morgarella [4.7K]

order of operations

BEMDAS:

B - <em>Brackets</em>

E - <em>Exponents</em>

D - <em>Division</em>

M - <em>Multiplication</em>

A - <em>Addition</em>

S - <em>Subtraction</em>

73 • 7 - 5 = 511 - 5 = 506

3 0
3 years ago
Read 2 more answers
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