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Elena L [17]
4 years ago
13

PLEASE HELP ME WITH THIS QUESTION

Mathematics
2 answers:
valentina_108 [34]4 years ago
4 0
Set 7x-4 and 31 equal to each other
7X-4=31
Add four to both sides
7X=27
X=3
The answer is D
GREYUIT [131]4 years ago
3 0

As per the problem we can see that

There two triangles with equal corresponding sides.

So we can set up the equation as below:

7x-4=31\\ \\ \text{Add 4 on both the sides we get}\\ \\ 7x-4+4=31+4\\ \\ 7x=35\\ \\ \text{Divide both the sides by 7  we get}\\ \\ x=5\\

Hence the value of x is 5.

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X y
xz_007 [3.2K]

Answer:

If x = 3y and 3y = x, then y = 1/3x.

3 0
3 years ago
Write 125 as a product of primes. Use index notation when giving your answer.
Mnenie [13.5K]

Answer:

5^3

Step-by-step explanation:

125= 5*25

25=5*5

5 is a prime number and there are 3 of them so the answer in index notation will be 5^3

3 0
3 years ago
A certain freely falling object, released from rest, requires 1.50 s to travel the last 30.0 m before it hit the ground. a.Find
Lyrx [107]
A.)
<span>s= 30m
u = ? ( initial velocity of the object )
a = 9.81 m/s^2 ( accn of free fall )
t = 1.5 s
s = ut + 1/2 at^2 
\[u = \frac{ S - 1/2 a t^2 }{ t }\]
\[u = \frac{ 30 - ( 0.5 \times 9.81 \times 1.5^2) }{ 1.5 } \]
\[u = 12.6 m/s\]
</span>
b.)
<span>s = ut + 1/2 a t^2
u = 0 ,
s = 1/2 a t^2
\[s = \frac{ 1 }{ 2 } \times a \times t ^{2}\]
\[s = \frac{ 1 }{ 2 } \times 9.81 \times \left( \frac{ 12.6 }{ 9.81 } \right)^{2}\]
\[s = 8.0917...\]
\[therfore total distance = 8.0917 + 30 = 38.0917.. = 38.1 m \] </span>
4 0
3 years ago
Help me please, please
kondaur [170]
5x^2 - 24x + 8 is your answer to this equation
4 0
3 years ago
Helppp pleaseeeeeeeeeeeeeeeeeeeeeee
Ugo [173]

y=4x

because

\frac{12}{3} =\frac{16}{4} =\frac{20}{5} =\frac{24}{6} =\frac{28}{7} =4

7 0
3 years ago
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