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2 years ago

Which postulate proves these two

Mathematics

1 answer:

jeka57 [31]2 years ago

8 0

Answer:

SAS

Step-by-step explanation:

According to the figure...

AB=CD. (side) (given)

AC=AC (side) (common)

angle B= angle D (angle) (given)

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Can someone solve this problem and show me how to solve it?

zhannawk [14.2K]

Add angles I guess but math

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2 years ago

Leons older brother is 4 and 3/4 feet tall. Leon is 1/3 foot shorter than his brother .how tall is leon

Mandarinka [93]

Let

x------> height of Leon's older brother

y------> height of Leon

Convert mixed number to an improper fraction

$4\frac{3}{4}\ ft=\frac{4*4+3}{4}= \frac{19}{4}\ ft$

we know that

$x=\frac{19}{4}\ ft$ -----> equation A

$y=x-\frac{1}{3}$ -----> equation B

substitute equation A in equation B

$y=\frac{19}{4}-\frac{1}{3}=\frac{53}{12}\ ft$

Convert to mixed number

$\frac{53}{12}=\frac{48}{12}+\frac{5}{12}=4\frac{5}{12}\ ft$

therefore

the answer is

$4\frac{5}{12}\ ft$

6 0

2 years ago

Read 2 more answers

A diver dives from the board at a local swimming pool. Her height, y, in metres, above the water in terms of her horizontal dist

Aneli [31]

Answer:

4 meters

Step-by-step explanation:

Given a quadratic equation in which the coefficient of $x^2$ is negative, the parabola opens up and has a maximum point. This maximum point occurs at the line of symmetry.

Since the divers height, y is modeled by the equation

$y= -x^2 + 2x + 3$

Step 1: Determine the equation of symmetry

In the equation above, a=-1, b=2, c=3

Equation of symmetry, $x=-\dfrac{b}{2a}$

$x=-\dfrac{2}{2*-1}\\x=1$

Step 2: Find the value of y at the point of symmetry

That is, we substitute x obtained above into the y and solve.

$y(1)= -1^2 + 2(1) + 3=-1+2+3=4m$

The maximum height of the diver is therefore 4 meters.

8 0

2 years ago

Please solve the problem below. Which is the correct answer?

Ivanshal [37]

I’m guessing A? Sorry if it’s wrong!

7 0

3 years ago

60 days increased by 70%

Arturiano [62]

70% of 60 is just 60 multiplied by 0.7:
$60*0.7=42$

Then you add to get the total days:
$60+42=102$

So, in total, you have 102 days.

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3 years ago

Read 2 more answers