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4 years ago

PLEASEEEE HELPPPPP!!!

Mathematics

1 answer:

Taya2010 [7]4 years ago

4 0

(1, 3.5 ) and (3, 3.5 )

the endpoints of the midsegment are at the midpoints of DE and DF

using the midpoint formula with D(0, 7), E(2, 0), F(6, 0)

midpoint of DE = [ $\frac{1}{2}$ (0 + 2), $\frac{1}{2}$ (7 + 0)] = (1, 3.5)

midpoint of DF = [ $\frac{1}{2}$ (0 + 6), $\frac{1}{2}$ (7 + 0)] = (3, 3.5)

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Identify the data set that could be quadratic. HELP ASAP!!

Ne4ueva [31]

Answer:

Option B can be quadratic.

Step-by-step explanation:

Take a look at the data.

A quadratic equation is of the form ,

$y = ax^{2} +bx + c$ ,

where, a,b,c are constants.

To find an unknown equation of 3 variables,

we need 3 points lying on the equation.

here they have given, 5 points, meaning all should lie on the curve.

For first option, inserting first 3 points to find equation, we get equation as,

$y = x^{2} -4x +11$ , but the rest points don't satisfy the curve.

So first option is not quadratic.

Similarly, it can be shown that option C and D are also not quadratic.

While, in option B, it is clear that for every y, x is y squared,

$x = y^{2}$ , thus quadratic in nature.

6 0

3 years ago

For which value of x is ABCD a kite?

Anit [1.1K]

Answer:

Step-by-step explanation:

x+7+90

x=83

5 0

3 years ago

Density of 222.50 g and 25.00 cm3

e-lub [12.9K]

Answer:

8.9 grams per centimeters cubed

Step-by-step explanation:

The formula for density is D=M÷V

Just divide 222.50 by 25.00 and you are done.

8 0

4 years ago

Take 9.5 gallons 6 1/3 poured out how much water is left in the tank

elena55 [62]

We can first convert 9.5 into fraction :

9.5= 9 1/2

Then we can use deduction to find out the answer:

9 1/2 - 6 1/3

=19/2 - 19/3

We change it to the same denominator:

=19×3/6 - 19×2/6

= 57/6 - 38/6

= 19/6

Therefore there are 19/6 or 3 1/6 gallons left in the tank.

Hope it helps!

4 0

4 years ago

HELP PLEASE I need help

cricket20 [7]

In an isosceles triangle, two sides are equal to each other. So, we know that the third side is either 6 or 15 inches.

If the third side is 6 inches, it would not make a triangle. The sum of any to sides of a triangle must be larger than the third side. However, 6+6 is LESS than 15, so 6 inches would not be the answer.

By process of elimination, the third side is 15 inches. Good luck!

5 0

3 years ago