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2 years ago

Enter the correct answer in the box

Mathematics

2 answers:

kakasveta [241]2 years ago

8 0

Answer:

Step-by-step explanation:

Invert and multiply the second fraction.

$\frac{x^2 - 2x}{x^2 - 10x + 25} *\frac{x^2 - 25}{6x^2 - 12x}$

All 4 parts of the two fractions can be factored into simpler factors.

$\frac{x(x - 2)}{(x - 5)(x - 5)} * \frac{(x + 5)(x - 5)}{6(x - 2)}$

Numerous cancelations can occur

(x - 5) [top right with x - 5 bottom left]
(x - 2) [top left with x - 2 bottom right]

Answer

$\frac{x}{(x -5)} * \frac{(x + 5)}{6}$

Kay [80]2 years ago

8 0

I got it right thanks :)

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Find the rate of change

Fantom [35]

Answer:

Step-by-step explanation:

$25 per day

it's "b" because as days increase the cost of dollars gets added by $25 per day.

Hope this helped!

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2 years ago

151. Find the perimeter of this triangle

Lena [83]

The perimeter is the sum of all the sides of the figure⇒

151

$P=a+b+c+d...$

$P=(y+9)+(3y+3)+(4y+6)=y+9+3y+3+4y+6=8y+18$

152

$P=a+b+c+d...\\P=(4a-100)+(2a-15)+(2a+40)=4a-100+2a-15+2a+40=\\=8a-75$

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3 years ago

These two scalene triangles are similar with a scale of 4:5. What is true about these figures?

disa [49]

Alright, lets get started.

Lets check each possible answer one by one.

We will start from option B.

BC is from small triangle and its corresponding side is DF, so its ratio will be $\frac{4}{5}$ not $\frac{5}{4}$ as given in option. Hence option B is incorrect.

For option C,

Angle a° and angle f° are not similar angles, if they were similar, then only their ratio will be 1 otherwise not 1. Hence option C is incorrect.

For option D,

Angle c° and angle f° are similar angles so, their ratio will be $\frac{c}{f} = 1$ . Hence option D is incorrect.

Now option A,

ED and AB are corresponding sides. ED is from bigger triangle and AB is from smaller triangle. Their ratio will be $\frac{ED}{AB} = \frac{5}{4}$ . Hence option A is correct answer.

Hope it will help :)

6 0

2 years ago

Read 2 more answers

What is the area of a right triangle with a hypotenuse of 12 and 1 leg is 10??

Agata [3.3K]

Hey there! :)

Area of triangles → (base × height) ÷ 2

The base and height are the 2 legs. You have to find the length of the other leg to find the area, using the Pythagorean Theorem.

a² + b² = c² → c² - a² = b²

c = 12
12² = 12 × 12 = 144

a = 10
10² = 10 × 10 = 100

144 - 100 = 44

√44 = 6.6
_____________________________________________________________

Area of triangles → (base × height) ÷ 2

Base: 10
Height: 6.6

6.6 × 10 = 66

66 ÷ 2 = 33

The area is 33

Hope this helps :)

5 0

2 years ago

Anyone understand how to do both of these?

Evgen [1.6K]

for the first one set 3y+y=180 and y+x=180

the second one set w+y=180, 42+x=180, y+20=180, and 87+v

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2 years ago