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mr_godi [17]
3 years ago
11

Dont comment under here if you and just commenting for points.. i really need to pass this:(

Mathematics
1 answer:
Scilla [17]3 years ago
4 0

Answer:

the y intercept is -9/2 or -4 1/2

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A combination of numbers and operations is called formula: true or false?
FinnZ [79.3K]

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true

Step-by-step explanation:

its actually false

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3 years ago
What is 50 x 79 x 27 + 69
vova2212 [387]

106,719

Answer:

50  \times  79  \times  27 + 69 \\  \\  = 106,650 + 69 \\  \\  = 106,719

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2 years ago
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A circle has an area of 3.14 cm^2 . What is its radius?
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Find the missing lengths: LK=15 and KH=9, find KI and HI.
Luda [366]

Answer:

KI=11.25 and HI=6.75

Step-by-step explanation:

Consider the below figure attached with this question.

According to Pythagoras Theorem:

base^2+perpendicular^2=hypotenuse^2

Use Pythagoras in triangle HKL

LH^2+KH^2=LK^2

(LH)^2+9^2=15^2

(LH)^2+81=225

(LH)^2=144

Taking square root on both sides.

LH=12

Let length of HI be x.

LI = 12+x

Use Pythagoras theorem in ΔKLI,

(KI)^2+15^2=(12+x)^2

(KI)^2+225=x^2+24x+144

(KI)^2=x^2+24x+144-225

(KI)^2=x^2+24x-81...(1)

Use Pythagoras theorem in ΔHKI,

(KI)^2=x^2+9^2

(KI)^2=x^2+81...(2)

From (1) and (2) we get

x^2+81=x^2+24x-81

24x=162

x=\dfrac{162}{24}=6.75

Hence, the measure of HI is 6.75 units.

Substitute x=6.75 in equation (2).

(KI)^2=(6.75)^2+81

(KI)^2=126.5625

Taking square root on both sides.

KI=\sqrt{126.5625}

KI=11.25

Hence, the measure of KI is 11.25 units.

3 0
3 years ago
Please help.<br> Is algebra.
Airida [17]

Answer:

i believe

the first one it's (0,3)

the second is (4, -7)

3 0
2 years ago
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