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3 years ago

If 3x + 2y = 5, what is the value of the expression 6x + 4y - 7?

Mathematics

2 answers:

enot [183]3 years ago

8 0

Answer:

Step-by-step explanation:

pickupchik [31]3 years ago

6 0

Answer:

Step-by-step explanation:

x = 1

y = 1

6+4-7 = 3

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Rewrite the expression using positive exponents 1. 1/9x^-2y^-1 2. a^-5*a^-8

NikAS [45]

Answer:

Property : a^-b = 1/a^b

Using this property, we can rewrite the expression using positive exponents :

$1. \frac{1}{9}*x^{-2} *y^{-1} =\frac{1}{9}\frac{1}{x^{2} } \frac{1}{y} =\frac{1}{9x^{2} y} \\2. a^{-5} a^{-8} =\frac{1}{a^{5}a^{8} } =\frac{1}{a^{13} }$

4 0

2 years ago

P(2,4),parallel to y=-3×+4

daser333 [38]

4 = - 3(2) + c
4 = - 6 + c
c = 10
y = - 3x + 10

5 0

3 years ago

Find the slope of the line that passes through (2,21) and (84, -30)

Flura [38]

Answer:

-51/82.

Explanation:

Given two points (x1,y1)=(2,21) and (x2,y2)=(84,-30), we find the slope using the formula below:

$m=\frac{y_2-y_1}{x_2-x_1}$

Substitute the given points:

$\begin{gathered} m=\frac{-30-21}{84-2} \\ m=-\frac{51}{82} \end{gathered}$

The slope of the line that passes through the given points is -51/82.

3 0

1 year ago

Write an equation of the line that passes through the given point and is (a) parallel and (b) perpendicular to the given line.

inessss [21]

Answer:

(a). y = 3x - 11 ; (b). y = $-\frac{1}{3}$ x - 1

Step-by-step explanation:

Parallel lines have the same slopes

Slopes of perpendicular lines are opposite reciprocals.

(3, - 2)

The slope of given line is 3

(a). Equation of ║ line is

y + 2 = 3(x - 3)

y = 3x - 11

(b). Slope of perpendicular line is $-\frac{1}{3}$

y + 2 = $-\frac{1}{3}$ (x - 3)

y =  $-\frac{1}{3}$  x - 1

5 0

2 years ago

Read 2 more answers

Can some one help The last two are H and J

Dahasolnce [82]

Answer:

the correct answer for this problem is J

5 0

2 years ago