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lord [1]
2 years ago
11

HIJK is a parallelogram because the midpoint of both diagonals is ____ which means the diagonals bisect each other.

Mathematics
2 answers:
just olya [345]2 years ago
4 0
ANSWER

The midpoint of both diagonals is

(1,0)
EXPLANATION

We can use either diagonals to determine the midpoint.

We use the midpoint formula

( \frac{x_1 + x_2}{2} , \frac{y_1 + y_2}{2} )

Let us use the first diagonals H(-2,2) and J(4,-2)

( \frac{ - 2 + 4}{2} , \frac{ - 2+ 2}{2} )

( \frac{ 2}{2} , \frac{ 0}{2} )

( 1, 0)

Using the second diagonals also gives,

( \frac{ - 2 + 4}{2} , \frac{ - 3+ 3}{2} )

( \frac{ 2}{2} , \frac{ 0}{2} )

( 1, 0)
Arlecino [84]2 years ago
4 0

Answer:

The answer is the third one



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Sanjeet paid $32.85 for a file and 3 identical pens.Leon paid $83.50 for 2 such files and 8 such pens.Find the cost of 1 pen.
olga2289 [7]
1 file + 3 pens = $32.85     --------------- (1)
2 files + 8 pens = $83.50   ----------------(2)

(1) x 2 :
2 files + 6 pens = $65.70   ----------------(1a)

(2) - (1a) :
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5 0
2 years ago
Which of the following proportions can be used to prove AE || DK in the proof below? Select all that apply.
Galina-37 [17]

Answer: DA:FA=KE:EF, DF:DA=KF:KE and FA:DA=EF:KE are correct.

Explanation: Since, \triangle EFA and \triangle KFD are similar triangles.

Because, \angle FAE= \angle FDK and \angle FEA= \angle FKD (because EA and KD are parallels. And, \angle F is common angle for these triangles.

Therefore, according to the property of similar triangles.

FE:EK= FA:AD, FE:FK=FA:FD and DF:DA=KF:KE .

Thus, first, second and third options are correct.

5 0
2 years ago
Read 2 more answers
Kona wants to bake at most 30 loaves of banana bread and nut bread for a bake sale. Each loaf of banana bread sells for $2.50,an
Mila [183]

Answer:

Step-by-step explanation:

30 loaves of banana bread and nut bread at most

Banana bread is sold for $2.5

Nut bread is sold for $2.75

Total income she wants to make $44

Given that x represent loaves of bread

And y represent loaves of nut bread

First statement

She wants to make at most 30 of both loaves bread and nut, at most means the maximum she wanted to make is 30, so it is either 30 or less than 30.

Therefore the sum of the loaves bread and the nut bread is less or equal to 30.

Mathematically,

x+y≤30. Equation 1

Second statement

She wants to make at least a gain of $44, that is, the minimum money she wants to make is $44

Banana bread is sold for $2.5

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Nut bread is sold for $2.75

She will make 2.75y by baking y nut bread.

Therefore,

Since she wants to make at least $44,

The inequality is,

2.5x+2.75y≥ 44. equation 2

The inequalities model are

1. x+y≤30

2. 2.5x+2.75y≥ 44

3 0
1 year ago
The graph of which function passes through (0,3) and has an amplitude of 3? f (x) = sine (x) + 3 f (x) = cosine (x) + 3 f (x) =
Cloud [144]

Answer:

f(x)=3*cosine(x)

Step-by-step explanation:

We are looking for a trigonometric function which contains the point (0, 3), and has an amplitude of 3.

We know that for a sine function f(x)=sin(x), f(0)= 0; therefore the function we a looking for cannot be a sine function because it is zero at x=0.

However, the cosine function f(x)=cos(x) gives non-zero value at x=0:

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therefore, a cosine function can be our function.

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f(0)=a*cos(0)= a

in other words it contains the point (0, a).

The function we are looking for contains the point (0, 3); therefore, its amplitude must be 3, or

f(x)=3cos(x)

we see that this function satisfies our conditions: f(x) has amplitude of 3, and it passes through the point (0, 3) because f(0)=3

8 0
2 years ago
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ELEN [110]
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78.6L is equal to 786dL.
6 0
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