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3 years ago

The points (2,9) and (-4,-9) are on a straight line. Calculate the x and y intercepts.

1 answer:

4 0

Slope: (9+9)/(2+4) = 18/6 = 3
Y- intercept:
9 = 3(2) + b
9 = 6 + b
b = 3
X- intercept:
0 = 3x + 3
-3 = 3x
x = -1
x-intercept: (-1,0)
y-intercept: (0,-3)

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Draw a rectangular fraction model to explain your thinking. Then, write a multiplication sentence. A. 2 3 of = 3 5

myrzilka [38]

Answer:

$\frac{2}{3}\ of\ \frac{3}{5} = \frac{2}{5}$

Step-by-step explanation:

Given

$\frac{2}{3}\ of\ \frac{3}{5}$

Solving (a): Multiplication sentence

$\frac{2}{3}\ of\ \frac{3}{5}$

Rewrite of as *

$\frac{2}{3}\ of\ \frac{3}{5} = \frac{2}{3}\ *\ \frac{3}{5}$

Solve

$\frac{2}{3}\ of\ \frac{3}{5} = \frac{2}{5}$

Hence, the multiplication sentence is:

$\frac{2}{3}\ of\ \frac{3}{5} = \frac{2}{5}$

Solving (b): Rectangular fraction model

In (a) above, the result is 2/5

The fraction model will be represented as thus:

Draw a rectangle
Partition in to 5 equal parts (5 represents the denominator)
Shade 2 of the 5 partitions (2 represents the numerator)

<em>See attachment for model</em>

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3 years ago

Which is equal to 6^-8/6^-2 A. 616 B. 64 C. 6−6 D. 6−10

rjkz [21]

6-6.
6^-8/6^-2 becomes 6^-8(6^2) which is 6^-8+2=6^-6

4 0

3 years ago

Please help me with number 9, also what method you used to get the equation

Sholpan [36]

The Method is that you add 1 block horizontally to the 2nd row of the figure every time you make a new one.

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3 years ago

Evaluate the expression:<br> 3(a + b - 3) - 212a + b - 4) when a = 2 and b = 1

olga_2 [115]

Answer:

417

Step-by-step explanation:

3(2+1-3)-212*2+1-4=?

3-212*2+1-4=?

3-423+1-4=?

420+1-4=?

421-4=?

417

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3 years ago

Write each fraction in simplest form 18 divided by 9

defon

well it would be 18/9 and that would simplify to 2 because if u divide both by 9 u get 2/1 which is 2

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3 years ago

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