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2 years ago

18. Given the following four lines, pick the true statement.

Mathematics

2 answers:

Sav [38]2 years ago

8 0

Answer:

Lines 2 and 4 are perpendicular

Step-by-step explanation:

Line 2: 4y=3x-4

y=3/4x - 1

Line 4: 4x+3y=-6

3y=-6-4x

y=-2 - 4/3x

The two lines are perpendicular since -4/3= - (inverse of 3/4)

lisabon 2012 [21]2 years ago

3 0

Answer:perpendicular

Step-by-step explanation:y=3x-1

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Can someone please help?

Firlakuza [10]

Answer:

1. x+4x

2. 5x

3. $6\frac{7}{x}$

4. 4x-2x+15

5. $(6+x)^2$

Step-by-step explanation:

To write expressions remember these key words:

a number is a variable like x
sum is +
difference and subtracted is -
quotient is ÷
product is ×
reciprocal means flip like $\frac{1}{9}---> \frac{9}{1}$
square is an exponent of 2 like $x^2$

1. x+4x

2. 5x

3. $6\frac{7}{x}$

Remember a quotient would be $\frac{x}{7}$ but the reciprocal is $\frac{7}{x}$ .

4. 4x-2x+15

5. $(6+x)^2$

6 0

3 years ago

P1 = (1,5). P2 = (x,2) .p1p2=5

Alex787 [66]

$\qquad\qquad\huge\underline{{\sf Answer}}♨$

Let's use distance formula :

$\qquad \sf \dashrightarrow \: \sqrt{(x - 1) {}^{2} + (2 - 5) {}^{2} } = 5$

$\qquad \sf \dashrightarrow \: {(x - 1) {}^{2} + ( - 3) {}^{2} } = 5 {}^{2}$

$\qquad \sf \dashrightarrow \:(x - 1) {}^{2} + 9 = 25$

$\qquad \sf \dashrightarrow \:(x - 1) {}^{2} = 16$

$\qquad \sf \dashrightarrow \:(x - 1) = 16$

$\qquad \sf \dashrightarrow \:(x - 1) = \pm4$

$\qquad \sf \dashrightarrow \:x = 5 \: \: or \: \: - 3$

6 0

1 year ago

-4(1+ 5-6- (42+5)<br><br> I really need the answer asap please and thanksss

solniwko [45]

Answer:

Read left to right

Do parenthesis first

-4 ( 1 + 5) ^2

-4 (6) ^2

Then exponent

6^2 = 6 x 6 = 36

-4 x 36 = -144

Then divide

-144 / 6 = -24

Then the next parenthesis

(42+5) = 47

-24 - 47 = <em>-71</em>

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

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If you work out the constants it says:

25+x²=100

Which simplifies to x=√75 or x=-√75

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3 years ago

What is the geometric mean between 20 and 15?

Oksi-84 [34.3K]

<h3>I hope it helps you see the attachment below</h3>

Step-by-step explanation:

<h2>#Princesses Rule</h2>

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