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2 years ago

A point has:

Mathematics

2 answers:

SashulF [63]2 years ago

8 0

Its all of the above

Masja [62]2 years ago

5 0

It would be all of the above

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PLEASEEE HELPPP ME PLSSSSS

babymother [125]

Answer:

y = -5x +5

Step-by-step explanation:

slope = (15 - -5)/(-2 - 2) = 20/-4 = -5

y int = 5

7 0

2 years ago

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Which construction is illustrated above ?

RSB [31]

Answer:

Option 2.

Step-by-step explanation:

You are bisecting angle BAC with pencil and compass.

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2 years ago

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Triangle ABC has AB=5, BC=7, and AC=9. D is on AC with BD=5. Find the length of DC

e-lub [12.9K]

Answer:

$DC=\frac{8}{3}\ units$

Step-by-step explanation:

The picture of the question in the attached figure

we know that

The triangle ABD is an isosceles triangle

because

AB=BD

The segment BM is a perpendicular bisector segment AD

In the right triangle ABM

Applying the Pythagorean Theorem

$BM^2=AB^2-AM^2$

we have

$AB=5\ units\\AM=x\ units$

substitute

$BM^2=5^2-x^2$

$BM^2=25-x^2$ -----> equation A

In the right triangle BMC

Applying the Pythagorean Theorem

$BM^2=BC^2-MC^2$

we have

$BC=7\ units\\MC=AC-AM=(9-x)\ units$

substitute

$BM^2=7^2-(9-x)^2$

$BM^2=49-(81-18x+x^2)$

$BM^2=49-81+18x-x^2$

$BM^2=-x^2+18x-32$ ----> equation B

equate equation A and equation B

$-x^2+18x-32=25-x^2$

solve for x

$18x=25+32\\18x=57\\\\x=\frac{57}{18}$

Simplify

$x=\frac{19}{6}$

Find the length of DC

$DC=AC-2x$

substitute the given values

$DC=9-2(\frac{19}{6})$

$DC=9-\frac{19}{3}\\\\DC=\frac{8}{3}\ units$

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3 years ago

Erica saw a skateboard on sale for $59.95 the original price of the skateboard was $79.95 what is the approximate percent discou

serg [7]

Answer: 25%

Step-by-step explanation:

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2 years ago

A colony of 10 bacteria doubles in size

aleksklad [387]

Answer:

Step-by-step explanation:

IT has doubled in size twice 75 =20 +75 =40 = 150 minutes.

7 0

2 years ago

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