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2 years ago

Need help with this ASAP ILL LOVE U FOREVER

Mathematics

2 answers:

Paha777 [63]2 years ago

7 0

Answer:its easy it the first one you had posted

Step-by-step explanation:

IRISSAK [1]2 years ago

3 0

Answer:

substitute x for -36 and y for 58

Step-by-step explanation:

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Prove that the segments joining the midpoint of consecutive sides of an isosceles trapezoid form a rhombus.

sergiy2304 [10]

Answer:

See explanation

Step-by-step explanation:

a) To prove that DEFG is a rhombus, it is sufficient to prove that:

All the sides of the rhombus are congruent: $|DG|\cong |GF| \cong |EF| \cong |DE|$
The diagonals are perpendicular

Using the distance formula; $d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$|DG|=\sqrt{(0-(-a-b))^2+(0-c)^2}$

$\implies |DG|=\sqrt{a^2+b^2+c^2+2ab}$

$|GF|=\sqrt{((a+b)-0)^2+(c-0)^2}$

$\implies |GF|=\sqrt{a^2+b^2+c^2+2ab}$

$|EF|=\sqrt{((a+b)-0)^2+(c-2c)^2}$

$\implies |EF|=\sqrt{a^2+b^2+c^2+2ab}$

$|DE|=\sqrt{(0-(-a-b))^2+(2c-c)^2}$

$\implies |DE|=\sqrt{a^2+b^2+c^2+2ab}$

Using the slope formula; $m=\frac{y_2-y_1}{x_2-x_1}$

The slope of EG is $m_{EG}=\frac{2c-0}{0-0}$

$\implies m_{EG}=\frac{2c}{0}$

The slope of EG is undefined hence it is a vertical line.

The slope of DF is $m_{DF}=\frac{c-c}{a+b-(-a-b)}$

$\implies m_{DF}=\frac{0}{2a+2b)}=0$

The slope of DF is zero, hence it is a horizontal line.

A horizontal line meets a vertical line at 90 degrees.

Conclusion:

Since $|DG|\cong |GF| \cong |EF| \cong |DE|$ and $DF \perp FG$ , DEFG is a rhombus

b) Using the slope formula:

The slope of DE is $m_{DE}=\frac{2c-c}{0-(-a-b)}$

$m_{DE}=\frac{c}{a+b)}$

The slope of FG is $m_{FG}=\frac{c-0}{a+b-0}$

$\implies m_{FG}=\frac{c}{a+b}$

5 0

3 years ago

PLEASE HELP I DON’T UNDERSTAND GIVE EXPLANATION PLEASE In a recent year, 22.3% of all registered doctors were female. If there w

bija089 [108]

Answer:

247,085 doctors in total

Step-by-step explanation:

55,100 = 22.3℅ ÷22.3

2,471 = 1℅

2471.85x100 = 247,085 doctors

To check I'll do 247,085÷100 = 2,470.85 = 1℅

2,470.85 × 22.3 = 55,099.955 which would round up to 51,000.

7 0

3 years ago

I don't know what 4n to the third power times m to the fourth power is.

iris [78.8K]

Answer:

4n³ × m⁴

Step-by-step explanation:

4n to the third power = 4n³

Times = ×

m to the fourth power = m⁴

I hope this helps! :)

I'm sorry if this wasn't supposed to be the answer. :(

7 0

2 years ago

A loggerhead sea turtle decided to swim to grab some lunch! She swam 4 miles west and 3 miles south until she stopped and foun

Alja [10]

Answer:

Down below.

Step-by-step explanation:

Use Pythagorean’s Theron

9 + 16 = c squared

25 = c squared

c = 5

6 0

2 years ago

How do you rename 5400

Nonamiya [84]

Answer: "Fifty-four hundred" .
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4 0

2 years ago