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mezya [45]
3 years ago
9

If sec x = -2 and x is an angle in the second quadrant find tangent

Mathematics
1 answer:
faltersainse [42]3 years ago
6 0

Answer:

ndnvndvkfnvnvndnvnvncxncnnc

Step-by-step explanation:

ndkkvdjv jnfbfbfnbfnvnfncnncvnfnfc

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PLSSS HELP
Dennis_Churaev [7]

The correct standard form of the equation of the parabola is:

(x+3)^{2}= 4(y - 3).

<h3 /><h3>What is a parabola?</h3>

An equation of a curve that has a point on it that is equally spaced from a fixed point and a fixed line is referred to as a parabola. The parabola's fixed line and fixed point are together referred to as the directrix and focus, respectively. It's also crucial to remember that the fixed point is not located on the fixed line. A parabola is a locus of any point that is equally distant from a given point (focus) and a certain line (directrix). An essential curve of the coordinate geometry's conic sections is the parabola.

For the given question,

Vertex of parabola is (-3,3)

Thus, the equation of the parabola is:

(x-h)^{2}=4(y-k)

(x+3)^{2}= 4(y-3)

Learn more about parabolas here:

brainly.com/question/64712

#SPJ1

4 0
2 years ago
State the domain and range in set notation​
antiseptic1488 [7]

Answer:

Image result for State the domain and range in set notation​

The domain is the set of all first elements of ordered pairs (x-coordinates). The range is the set of all second elements of ordered pairs (y-coordinates). Only the elements "used" by the relation or function constitute the range. Domain: all x-values that are to be used (independent values).

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
The total cost of an item is the price plus the sales tax.
Oxana [17]

Answer:

41.60

Step-by-step explanation:

4% of 40=1.6

40+1.6=41.6

7 0
3 years ago
PLEASE HELP FAST!!!!!!!!!!!
san4es73 [151]

Answer:

First expression         8y +4x +10

Second expression    7x-3y +6

If you want to combine both expressions: 5y +11x +16

Step-by-step explanation:

Like terms are the terms which have same variables and powers/roots.

Example: 7x and 2x are like terms because the variables are both "x". So we can combine in 9x

In an expression, only like terms can be combined. We combine like terms to shorten and simplify algebraic expressions, so we can work with them more easily. To combine like terms, we add the coefficients and keep the variables the same

10y + 3x + 10 + x -2y  

10y-2y=8y          3x+x=4x

so         8y +4x +10

3x - y + 4x + 6 - 2y

3x+4x=7x              -2y -y = -3y

so  7x-3y +6

4 0
3 years ago
A block of ice weighing 20 lb is taken from the freezer where it was stored at -15"F. How many Btu of heat will be required to c
timofeeve [1]

Answer:

6700.6 BTU

Step-by-step explanation:

First you have to warm the block from -15° F to 32°F, the heat to needed to do this is:

Q_{1}=mc\Delta T=20lb*0.49\frac{BTU}{lbF} *(32F-(-15F))=460.6BTU

After you need to melt the ice. The heat you need is:

Q_{2}=mL=20lb*144\frac{BTU}{lb}=2880BTU

Finally, you need to heat the water from 32° F to 200 ° F, and the heat for this is:

Q_{3}=mc\Delta T=20lb*1\frac{BTU}{lbF} *(200F-32F)=3360BTU

Q=Q_{1}+Q_{2}+Q_{3}=460.6BTU+2880BTU+3360BTU=6700.6BTUTo have the total heat you used you have to suQ_{1},Q_{2} and Q_{3}

6 0
3 years ago
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