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Serggg [28]
3 years ago
10

Witch expression is equivalent to 3(x+5)+2x

Mathematics
1 answer:
3241004551 [841]3 years ago
7 0

Answer:

5x+15

Step-by-step explanation:

3(x+5)+2x \\3x+15+2x\\5x+15

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What is the gradient of the graph shown?
sladkih [1.3K]

Answer:

gradient = \frac{1}{3}

Step-by-step explanation:

calculate the gradient m using the gradient formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 6, 0) and (x₂, y₂ ) = (0, 2) ← 2 points on the line

m = \frac{2-0}{0-(-6)} = \frac{2}{0+6} = \frac{2}{6} = \frac{1}{3}

3 0
2 years ago
For the linear equation 3x + 7y = 42: a. Determine the slope: b. Determine y- intercept if it exists: c. Express equation in slo
algol13

Answer:  The required answers are

(a) the slope of the given line is -\dfrac{3}{7}.

(b) y-intercept exists and is equal to 6.

(c) the slope-intercept form of the line is y=-\dfrac{3}{7}x+6.

Step-by-step explanation:  We are given the following linear equation in two variables :

3x+7y=42~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

We are to :

(a) determine the slope,

(b) determine the y-intercept, if exists

and

(c) express equation in slope-intercept form.

We know that

The SLOPE_INTERCEPT form of the equation of a straight line is given by

y=mx+c, where m is the slope and c is the y-intercept of the line.

From equation (i), we have

3x+7y=42\\\\\Rightarrow 7y=-3x+42\\\\\Rightarrow y=\dfrac{-3x+42}{7}\\\\\\\Rightarrow y=-\dfrac{3}{7}x+6.

Comparing with the slope-intercept form, we get

\textup{slope, m}=-\dfrac{3}{7},\\\\\\\textup{y-intercept, c}=6.

Thus,

(a) the slope of the given line is -\dfrac{3}{7}.

(b) y-intercept exists and is equal to 6.

(c) the slope-intercept form of the line is y=-\dfrac{3}{7}x+6.

3 0
4 years ago
Which is the value of the expression when x=-2 and y =-3
a_sh-v [17]

Answer:

-720

Step-by-step explanation:

10x^3y^2    If x = -2 and y = -3

10 * (-2^3) * (-3^2)

10 * (-8) * (9) = -720

6 0
3 years ago
Read 2 more answers
One half of a number less than six is greater than or equal to ten
Colt1911 [192]

Answer:

5 is half of ten hope it helps

3 0
3 years ago
Write the following equation in the general form
shtirl [24]
<h2>Explanation:</h2>

As I understand, the given equation is:

5 y = x-1

So we need to write this into general form. The general form of the equation of a line is given by:

Ax + By + C = 0

Where A and B can't be zero at the same time. So subtracting 5y from both sides:

5y-5y = x-1-5y \\ \\ 0=x-1-5y \\ \\ \\ Arranging: \\ \\ \boxed{x-5y-1=0} \\ \\ \\ So: \\ \\ A=1 \\ \\ B=-5 \\ \\ C=-1

6 0
4 years ago
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