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zzz [600]
3 years ago
12

A parallelogram is made within the shape below by connecting the midpoints of the quadrilateral. Find the lengths of a and b

Mathematics
1 answer:
elixir [45]3 years ago
7 0

Answer:

A parallelogram is made within the shape below by what

Step-by-step explanation:

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Write a quadratic function for each graph described.
user100 [1]

Answer:

y=2x^2-\frac{4}{3}x-\frac{10}{3}

Step-by-step explanation:

we know that

The roots of the quadratic function (x-intercepts) are

x=-1 and x=5/3

so

we can write the equation of the parabola as

y=a(x+1)(x-\frac{5}{3})

where

a is a coefficient

Remember that

The parabola pass through the point (5,40)

substitute the value of x and the value of y of the ordered pair in the quadratic equation and solve for a

x=5, y=40

40=a(5+1)(5-\frac{5}{3})

40=a(6)(\frac{10}{3})

40=20a\\a=2

substitute

y=2(x+1)(x-\frac{5}{3})

apply distributive property

y=2(x^2-\frac{5}{3}x+x-\frac{5}{3})\\\\y=2(x^2-\frac{2}{3}x-\frac{5}{3})\\\\y=2x^2-\frac{4}{3}x-\frac{10}{3}

see the attached figure to better understand the problem

6 0
3 years ago
Please help me... I really need it.
MAXImum [283]

Answer:

If you are writing a seesya let me help you

Step-by-step explanation:

Make sure to hilight key info

Also use grammarly to correct past tense and sentences

Make sure to make sense

8 0
3 years ago
The diameter of a circle is 9 cm. Find its area to the nearest tenth.
Alja [10]
<h2>63.6 cm</h2><h2 />

Cut diameter in half to find radius

9/2 = 4.5

radius = 4.5

This is the formula for area of a circle:

pi * radius^2

pi * 4.5^2

20.25pi

Now find pi:

20.25 * pi = 63.6

Answer:

63.6 cm is the area

3 0
3 years ago
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Heidi's hair was 2/3 of a meter long. her grandfather cut off 1/6 of a meter of her hair. how long is heidi's hair now?
Fittoniya [83]
The answer to this is 1/2 of a meter long. 
3 0
3 years ago
If the point (-4,7) is reflected over the y- axis, what are the new coordinates of the refelected point
Alex73 [517]
(4,7) cause its moving to the positive x side flipping on y axis the rule is (x,y) -> (-x,y) flipping over x axis the rule is (x,y) -> (x,-y) where - is opposite in each equation like a 5 turns into -5 or -3 turns into 3
3 0
4 years ago
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