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2 years ago

Solve for the variables

Mathematics

1 answer:

Genrish500 [490]2 years ago

4 0

For number 3 the answer would be 6. That would be the answer for n.
For number 4 the answer would be -6. That would be the answer for n.

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I WILL GIVE YOU BRAINLIEST, AND 30 POINTS SO PLEASE HELP ME, IT'S URGENT!

IRINA_888 [86]

Answer:

Answer is option b)

${(x - 3)}^{2} + {(y - 4)}^{2} = 400$

Your guess was right.

Step-by-step explanation:

$the \: question \: states \: that \: \\ distance \: between \: two \: points \: is \: 20 \: units \: \\ and \: the \: two \: points \: are \: (x,y) \: \: and \: \: (3 ,- 4) \\ distance \: formula \\ = \sqrt{ {(x1 - x2) }^{2} + {(y1 - y2)}^{2} } \\ on \: substituting \: the \: values \: in \: formula \\ 20 = \sqrt{ {(x - 3)}^{2} + {(y - ( - 4))}^{2} } \\ 20 = \sqrt{ {(x - 3)}^{2} + {(y + 4)}^{2} } \\ now \: squaring \: on \: both \: sides \\ 400 = {(x - 3)}^{2} + {(y + 4)}^{2} \\ hence \: the \: answer \: is \: option \: b)$

HAVE A NICE DAY!

THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION. 

6 0

3 years ago

Which set of side lengths or angle measures can be used to construct a triangle A. 50 inches, 90 inches, 35 inches B. 60 inches,

kolbaska11 [484]

Answer:

D. 60, 45,75

Step-by-step explanation:

For options C and D

For a triangle the sum of the angles must always be equal to 180 degrees

So 180 ≠45+45+80

and

60 +45+ 75= 180

For option A and B

The length of the longer side is equal to the square root of the sum of squares of the other two sides in a triangle.

According to Pythagorus theorem

hypotenuse²= base² + perpendicular²

c²= a²+ b²

90²= 50² + 35²

8100= 2500+1225

8100≠3725

95²= 60²+ 25²

9025= 3600+ 625

9025≠4225

Therefore only D is the correct option

8 0

3 years ago

Ramil and Carly decided to make more baked goods for the bake sale. They used 1/7 lb less flour to make bread than to make cooki

STALIN [3.7K]

Lila uses lb of flour to make the bread.
Since she uses lb less to make bread than cookies then flour used to make the cookies = -
=
= lb
She used lb more flour to make cookies than brownies then flour used to make brownies = -
= = lb
Therefore, flour used to make brownies in lb.

7 0

2 years ago

I need help is due today!!!:Cool tees is having a back to school sale where all t-shirts are discounted by 15%. Joshua wants to

Softa [21]

Answer:

$64.5745

Step-by-step explanation:

You had to do this:

9.99+11.99+11.99+21.00+21.00=75.97

x = 85

75.97 100 85*75.97=6457.45

100x=6457.45