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3 years ago

Please help me on this

Mathematics

2 answers:

DochEvi [55]3 years ago

7 0

The correct answer is eight inches

Vadim26 [7]3 years ago

3 0

Answer:

8in

Step-by-step explanation:

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Round 963 to 1 significant figure.

dedylja [7]

963 would be rounded to become 1000.
This is because 9 is the first non-zero number and so since there are only going to be 1 significant figures, the 9 would round up or down. There is a 6 after the 9, so it rounds up to 10, making it 1000.

7 0

3 years ago

Write an equation of the line below

gregori [183]

Answer:

The equation of the line is:

$y = 4x + 3$

Step-by-step explanation:

We know that the slope-intercept of line equation is

$y = mx+b$

Where m is the slope and b is the y-intercept

Given the two points on a line

(0, 3)

(-2, -5)

Finding the slope between (0, 3) and (-2, -5)

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(0,\:3\right),\:\left(x_2,\:y_2\right)=\left(-2,\:-5\right)$

$m=\frac{-5-3}{-2-0}$

$m=4$

We know that the y-intercept can be computed by setting x=0 and determining the corresponding y-value.

From the graph, it is clear:

at x = 0, y = 3

Thus, y-intercept = b = 3

Substituting m = 4 and b = 3 in the slope-intercept form of line equation

$y = mx+b$

$y = 4x + 3$

Therefore, the equation of the line is:

$y = 4x + 3$

8 0

3 years ago

Solve for a.<br> a^2=-3a+88

Sergio [31]

Answer:

$a=8,-11$

Step-by-step explanation:

$a^2=-3a+88$

$a^2+3a=88$

$a^2+3a-88=0$

$x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

$x=\frac{-3\pm\sqrt{3^2-4(1)(-88)} }{2(1)}$

$x=\frac{-3\pm\sqrt{9+352} }{2}$

$x=\frac{-3\pm\sqrt{361} }{2}$

$x=\frac{-3\pm19 }{2}$

$x=-11$ and $x=8$

Therefore, the values of $a$ are 8 and -11.

5 0

3 years ago

Jaidee and Kim are selling fruit for a school fundraiser.

tamaranim1 [39]

What is the rest of the question?

3 0

3 years ago

a line passes through the point (4 –6) and has a slope of -<img src="https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B4%7D" id="TexFormu

yulyashka [42]

Answer:

$y = \frac{5}{4}x - 1$

Step-by-step explanation:

A line that passes through the point (4,-6) has a slope of 5/-4. Which of the following gives the equation of the line?

With the slope of 5/-4, and the ordered pair (4,-6) :

let m = 5/-4 (slope),

x1 = 4

y1 = -6

We can use those given values into the point-slope formula:

y - y1 = m(x - x1)

Plugging in those values will give you the answer:

y - (-6) = $\frac{5}{-4}$ (x - 4)

Distribute $\frac{5}{-4}$ into the terms inside the parenthesis:

y + 6 = $\frac{ 5}{-4}x$ + 5

Subtract 6 from both sides to isolate y:

y + 6 - 6 = $-\frac{ 5}{4}x$ +5 - 6

The equation of the line in slope-intercept form is:

$y = -\frac{ 5}{4}x - 1$

6 0

3 years ago