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Hitman42 [59]
2 years ago
10

Please answer with steps

Mathematics
1 answer:
lilavasa [31]2 years ago
4 0

Answer:

2 :\sqrt{\pi}

Step-by-step explanation:

a.......... x_{1}

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Use the side-splitter theorem to solve for x in the triangle below.<br> 21<br> 42
alexandr1967 [171]

x = 8

Solution:

Side-splitter theorem:

<em>If a line is parallel to one side of a triangle and the line intersects the other two sides, then this line divides those two sides proportionally.</em>

$\Rightarrow\frac{4}{21} =\frac{x}{42}

Do cross multiplication, we get

⇒ 4 × 42 = 21x

Divide by 21 on both sides, we get

⇒ 4 × 2 = x

⇒ 8 = x

Switch the sides.

⇒ x = 8

The value of x is 8.

8 0
3 years ago
What is the length of feet in 5 equal length of ribbon equaling 2 yards of ribbon
alisha [4.7K]
Am presuming you are asking for the length of each ribbon in feet.

5 of them = 2 yards.

1 of them =  2/5 = 0.4 yards.

But note 3 feet make 1 yard.

Therefore:  0.4 yards = 0.4 * 3 feet =  1.2 feet.
3 0
3 years ago
Epic math question that i cant solve
zvonat [6]
The area of the shaded region can be found by subtracting the area of the inside rectangle from the outside rectangle

area of outside: 6 X 10y —> 60y
area of inside: 3 X 5x —> 15x

so the area of the shaded region is 60y-15x

the GCF is 15, so the factored form is: 15(4y-x)

8 0
3 years ago
2(10)+ 2(x-4)<br> i dont get it
hoa [83]

Answer:

2x + 12

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The recursive rule for a sequence is shown. an=an−1+6 a1=39 What is the explicit rule for this sequence? an=33n+6 an=33n−6 an=6n
Andrej [43]

Given that, a_{1} = 39

We will find the second term a_{2}a_{2} = a_{1} + 6 = 39 + 6 = 45

Similarly,

a_{3} = 45 + 6 = 51

Now we use the option checking method,

Suppose we check 4th option

a_{n}= 6n + 33

for n=1

a_{1} = 6(1) + 33 = 39

a_{2}  = 6(2) + 33 = 12 + 33 = 45a_{3}  = 6(3) + 33 = 18 + 33 = 51

It means option D is correct

4 0
3 years ago
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