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3 years ago

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2E. Point B is halfway between A and C. The distance from C to D is the same as the distance from D to E, which is the same as t

he distance from E to F. The area of triangle ACF is 180 cm2. How many square centimeters is the shaded area of triangle BCE?

1 answer:

alexandr1967 [171]3 years ago

7 0

Answer:

120

Step-by-step explanation:

Trust me!

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A student finds the slope of the line between (8, 17) and (1, 4). She write 17-4/1-8. What mistake did she make?

Alex_Xolod [135]

Answer: OPTION D.

Step-by-step explanation:

The formula that is used to calculate the slope of a line is:

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

Where $(x_1,y_1)$ and $(x_2,y_2)$ are two points on the line.

In this case the student finds the slope of the line that passes trough these points:

$(8, 17)\\(1, 4)$

You can notice that she writes in the numerator that:

$y_2=17\\y_1=4$

So she chose the point $(1, 4)$ as $(x_1,y_1)$ and the point $(8, 17)$ as $(x_2,y_2)$ .

Then $x_2$ and $x_1$ in the denominator must be:

$x_2=8\\x_1=1$

Therefore, she did not keep the order of the points the same in the numerator and the denominator.

6 0

3 years ago

Roses need 14 times as much water as irises to bloom. if irises need 12 milliliters of water to bloom, how much water do roses n

Blababa [14]

Answer:

168 milliliters

Step-by-step explanation:

Since roses need 14 times as much water as irises and we are given the water irises need, you multiply them together.

14•12=168

3 0

3 years ago

Please hurry!!!! 20 pts

Ivahew [28]

The slope for is JK 1/3 , the slope of LK is -2 , the slope of ML is 2/5 , and the slope of MJ is 3/2 . Quadrilateral JKLM is not a parallelogram because neither pair of opposite sides is parallel

Further explanation:

Given vertices are:

J(−4, 1) , K(2, 3) , L(5, -3) , and M(0, −5) .

We have to find the slopes before concluding any result

The formula for slope is:

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

So:

<u>Slope of JK:</u>

$m_1=\frac{3-1}{2-(-4)}\\=\frac{2}{2+4}\\=\frac{2}{6}\\=\frac{1}{3}$

<u>Slope of LK:</u>

$m_2=\frac{-3-3}{5-2}\\=\frac{-6}{3}\\=-2$

<u>Slope of ML:</u>

$m_3=\frac{-3-(-5)}{5-0}\\=\frac{-3+5}{5}\\=\frac{2}{5}$

<u>Slope of MJ:</u>

$m_4=\frac{1-(-5)}{-4-0}\\=\frac{1+5}{-4}\\=\frac{6}{-4}\\=-\frac{3}{2}$

As the slopes of all sides are different, the given quadrilateral is not a parallelogram because in order for the quadrilateral to be a parallelogram the opposite sides have to be parallel i.e. have equal slopes and there are no sides with equal slopes.

Keywords: Parallelogram, Quadrilateral

Learn more about quadrilateral at;

#LearnwithBrainly

6 0

3 years ago

Please help me out i will mark brainliest i need help on this! Its plot dot and dot plotting!

finlep [7]

Answer:

b

Step-by-step explanation:

the second one it should be hope's it helps

5 0

3 years ago

R --> 2 P. Initially you start off with 0.5 M reactants and let the reaction run to equilibrium and calculate the equilibrium

Anit [1.1K]

Answer:

K still the same value

Step-by-step explanation:

given a reaction aA+bB<->cC+dD the constant K is defined as:

$\frac{C^{c}D^{d} }{A^{a}B^{b} }$

K is a constant so it won't change the value. Instead, the values of C and D are going to change. The position of equilibrium moves because of the need to keep a constant value for the equilibrium constant.

8 0

3 years ago