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3 years ago

What is the value of the expression m^2 + 3m when m=4

Mathematics

1 answer:

givi [52]3 years ago

3 0

4^2+3(4)=28 hope this helps

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Rosa recorded the height (in centimeters) of a pea plant over a 10-day period for a science experiment. Please help me with this

katrin [286]

Answer:

option a)

y = m(0.5) + 1.8

Step-by-step explanation:

Equation

represent the equation of straight line

here m = gradient of straight line

c = y-intercept

First find the gradient of the graph

= 4 - 3 / 4 - 2

= 1 / 2

Put the values in the equation of straight line

y =mx + c

4 = 1/2(4) + c

c = 2

y = 1/2x + 2

which is approximately equal to y = 0.5x + 1.8

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3 years ago

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frosja888 [35]

Answer: 6 triangles

Step-by-step explanation:

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2 years ago

1. If x is the supplementary angle of 155°,

ValentinkaMS [17]

Answer:

0.466 degree is the. answer

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3 years ago

Radical expressions Help pls multiple choice

Ann [662]

Answer:

4th option (sqrt(10))/2

Step-by-step explanation:

$\frac{5}{\sqrt{10} } * \frac{\sqrt{10}}{\sqrt{10} } \\ \frac{5\sqrt{10}}{10} \\\\frac{\sqrt{10}}{2}$

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3 years ago

What is the equation of the line in the following graph? 1)y=x+2

Levart [38]

The slope-intercept form:

$y=mx+b$

m - slope

b - y-intercept

The formula of a slope:

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

We have two points (2, 0) and (-2, -4). Substitute:

$m=\dfrac{-4-0}{-2-2}=\dfrac{-4}{-4}=1$

Therefore we have the equation of a line

$y=1x+b\to y=x+b$

Put the coordinates of the point (2, 0) to the equation:

$0=2+b$ <em>subtract 2 from both sides</em>

$-2=b\to b=-2$

Answer: $\boxed{y=x-2}\to\boxed{3)}$

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4 years ago