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Serggg [28]
3 years ago
12

Which pair of non-congruent figures must be similar? two squares two parallelograms (not rectangles) two right triangles two iso

sceles triangles (not equilateral)

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
6 0

Answer:

The answer is A (Two squares)

Step-by-step explanation:

Any give square will have proportionate side lengths,as they are the same, meaning that if you dilute  one square it will always be proportinate

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The coordinates of three vertices of a triangle are (3, 5), (-1, 5), and (-1, -3). What is the area of the triangle?
Marina86 [1]
If you would graph the triangle, one of the legs would be 8 and another would be 5 and the area of a triangle is bxh/2 so the equation is 8x5/2=20un².
Hope this helped! :)
7 0
3 years ago
Natalie works in a department store selling clothing. She makes a guaranteed salary of $300 per week but is paid a commission on
Luba_88 [7]

Answer:  Natalie make $ 367.5 in a week  in which she made $225 in sales .

Natalie make $ ( 300+x ) in a week  in which she made $ x  in sales .

Step-by-step explanation:

Base Salary of Natalie =  $300

Also, she gets 30% of the her total sales for the week.

If total sales in a week = $225

commission = 30% of $225

= $ ( 0.30 × 225)

= $ 67.5

Natalie got = Base Salary  + Commission

= $300 + $ 67.5

= $ 367.5

∴ Natalie make $ 367.5 in a week  in which she made $225 in sales .

If total sales in a week = $x

commission = 30% of $x

= $ ( 0.30 × x)

= $ 0.30 x

Natalie got = Base Salary  + Commission

= $ ( 300+x )

∴ Natalie make $ ( 300+x ) in a week  in which she made $ x  in sales .

7 0
3 years ago
PLEASE ANSWER ASAP! PLEASE SHOW ALL WORK!
Bond [772]

Answer:


Step-by-step explanation:


Download pdf
6 0
3 years ago
A 25​-foot ladder is placed against a vertical wall. Suppose the bottom of the ladder slides away from the wall at a constant ra
dsp73

Answer: The ladder is sliding down the wall at a rate of 5\dfrac{17}{50}\ ft/sec

Step-by-step explanation:

Since we have given that

Length of ladder = 25 foot

Distance from the wall to the bottom of ladder = 15 feet

Let base be 'x'.

Let length of wall be 'y'.

So, by pythagorus theorem, we get that

x^2+y^2=25^2\\\\15^2+y^2+625\\\\225+y^2=625\\\\y^2=625-225\\\\y^2=400\\\\y=\sqrt{400}\\\\y=20\ feet

\dfrac{dy}{dx}=-4\ ft/sec

Now, the equation would be

x^2+y^2=625\\

Differentiating w.r.t x, we get that

2x\dfrac{dx}{dt}+2y.\dfrac{dy}{dt}=0\\\\2\times 15\dfrac{dx}{dt}+2\times 20\times -4=0\\\\30\dfrac{dx}{dt}-160=0\\\\\dfrac{dx}{dt}=\dfrac{160}{30}=5.34\ ft/sec

Hence, the ladder is sliding down the wall at a rate of 5\dfrac{17}{50}\ ft/sec

8 0
3 years ago
Convert 0.72 repeating into a fraction
Fiesta28 [93]

0.72 repeating is the sum of a geometric series with first term 0.72 and common factor 1/100. The sum is given by:

(first term) 0.72 0.72 72

--------------------------- = --------------- = ------------ = ------------

1 - common factor 1 - 1/100 99/100 99

This 72/99 can be reduced to 8/11.

0.72 repeating can be rewritten as the fraction 8/11.


5 0
3 years ago
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