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Naddik [55]
3 years ago
9

Find all the values of k so that the given points are 29 square units apart. (-5, 5) and (k,0).

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
7 0
Distance formula between 2 points (x1,y1) and (x2,y2)

D=\sqrt{(x1-x2)^{2}+(y1-y2)^{2}}

D=29 and one point is (-5,5) and the other is (k,0)
sub

29=\sqrt{(-5-k)^{2}+(5-0)^{2}}
29=\sqrt{(-5-k)^{2}+(5)^{2}}
square both sides
841=(-5-k)^{2}+(5)^{2}
841=(-5-k)^{2}+25
minus 25 both sides
816=(-5-k)^{2}
square root both sides don't forget positive and negative roots
+/-4√51=-5-k
add 5 to both sides
5+/-4√51=-k
times -1 both sides
-5+/-4√51=k




the possible values for k are
k=-5+4√51 or k=-5-4√51

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Find the area of this figure. Round your answer to the nearest hundredth. Use 3.14 to approximate
tatyana61 [14]

Answer:

104 ft²

Step-by-step explanation:

The area of the rectangle is represented by the following:

8ft x 10 ft = 80 ft

The area of the triangle is represented by the following:

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By combining the values, you get 104 square feet.

3 0
2 years ago
Robin and Shaon got 5/6 and 4/5 of the total marks. Robin obtained 30 more marks than Shaon.What is the total marks?
Natasha2012 [34]

Answer:

Robin= 750

Sharon= 720

Step-by-step explanation:

let the total marks obtained be X

from question, Robin = 5X/6

Shaon= 4X/5

then, 5X/6= 4X/5+30

or, 5X/6= 4X+150/5

or 25X=24x+900

or,X= 900

therefore robin=750

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3 0
2 years ago
4(6c+5) - 2(3c - 5) = 120
ira [324]

Answer:

c=5

Step-by-step explanation:

Simplify both sides of the equation.

4(6c+5)−2(3c−5)=120

(4)(6c)+(4)(5)+(−2)(3c)+(−2)(−5)=120(Distribute)

24c+20+−6c+10=120

(24c+−6c)+(20+10)=120(Combine Like Terms)

18c+30=120

Subtract 30 from both sides.

18c+30−30=120−30

18c=90

Divide both sides by 18.

\frac{18c}{18}=\frac{90}{18}

c=5

hope this helps... :/

8 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
PLEASE ANSWER FAST WILL DO BRAINLIESTThe coordinate grid shows points A through K. What point is a solution to the system of ine
Alja [10]

Answer:  points B (4,7) and  I (9,3)

If the inequalities are

y > −2x + 10  and y> (½)x -2

Step-by-step explanation:  If I interpreted the inequalities correctly, the attached graph shows them. It is possible that you meant  y > 1/(2x-2) for the second inequality. If so, we start over!

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