In 1QRS, q = 6.8 inches, r = 1.9 inches and angle S=141^ Find the length of s, to the nearest of an inch.

5r^2-13r-6=0 How do I solve this

frosja888 [35]

$5 {r}^{2} - 13r - 6 = 0 \\ a = 5 \\ b = - 13 \\ c = - 16 \\$

r= -(-13)±>

$\sqrt{( - 13) {}^{2} } - 4.5( - 6)$

2.5

r= 13±17

10

r=13+17

10

r=13-17

10

$r = 2 \\ r = \frac{ - 2}{5}$

$this \: the \: answer \: your \: question \\ \\ mark \: me \: as \: a \: brainlist \: plz$

7 0

3 years ago

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Given a parent function y=x^3, write a function with the following transformations: right 3, up 2, dilated by a factor of 1/2.

ser-zykov [4K]

Answer:

h(x) = (1/2)(x - 3)^2 + 2

Step-by-step explanation:

Start with y = x^3.

Multiply x^3 by the dilation factor (1/2); this compresses the graph vertically.

Next, replace the x in x^3 with (x - 3). This shifts the graph 3 units to the right.

Last, starting with your g(x) = (1/2)(x - 3)^2, add 2

You will end up with h(x) = (1/2)(x - 3)^2 + 2.

7 0

3 years ago

this week maddie worked 2 1/2 hours on monday, 2 2/3 hours on tuesday and 3 1/4 hours on wednesday. how many more hours will mad

ddd [48]

For this you will have to know how to add fractions. First of all i like to add the whole numbers together first, so 2+2+3= 7. so now what you have to do is add the fractions together. so 2/3 + 1/4 + 1/2 = ? you will have to find a common denominator for 3, 4, and 2; which is 12. Multiply each fraction by the needed number to get each denominator to 12. so 2/3 will be multiplied by 4, 1/4 will be multiplied by 3, and 1/2 will be multiplied by 6. The new equation and answer will be: 8/12 + 3/12 + 6/12 = 17/12. 17/12 as a mixed fraction is 1 5/12. now we add 1 5/12 and 7 to equal 8 5/12. and then you will have to subtract this from 10, using common denominators and such to get your final answer of 2 1/12. (sorry for the long spiel on how to do this question)

7 0

3 years ago

2. Circle C, has center (0,0) and radius 2.

adell [148]

Answer:

2. x ² + y ² = 4

3. x² + y² = 23

Step-by-step explanation:

The equation of a circle with center

( a , b ) and radius r is:

( x − a )² + ( y − b ) ² = r ²

Explanation:

Here,

a = 0 , b = 0 , r = 2

The equation is:

( x -0 ) ² + ( y -0 ) ² = ( 2 ) ²

that is: x ² + y ² = 4

Thus:

x ² + y ² = 4

3. Each point on a circle has the same distance from the center. This distance is the radius r of the circle.

Here, ( -3 , 4 ) is a point on the circle, meaning that the radius of the circle is the distance between ( 0 , 0 ) , the center, and ( -3 , 4 ) .

thus a circle centered on the origin will have an equation of:

x² + y² =r²

And, ( -3 , 4 ) lies on the circle, we have:

(-3)² + (4)² = r²

9 + 14 = 23

substituting;

x² + y² = 23

8 0

3 years ago

The diameter of a baseball is approximately 3 inches. What is its volume? Round your answer to the nearest whole number.

OLga [1]

Answer:

I am not sure, but i think it is A

Step-by-step explanation:

8 0

3 years ago

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