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ELEN [110]
3 years ago
13

DF=78, DE=5x-9, and EF-2x+10, find EF

Mathematics
1 answer:
lbvjy [14]3 years ago
8 0

Answer:

As e is point between df. So we can write df as

df = de + ef

As given df = 78 , de = 5x - 9 , ef = 2x + 10.

So we can write

78 = 5x - 9 + 2x + 10

78 = 7x + 1

On subtracting 1 on booth side

78 - 1 = 7x +1 - 1

77 = 7x

On dividing both side by 7.

11 = x

So x = 11.

So ef = 2x + 10 = 2*11 + 10 = 22 + 10 = 32

Step-by-step explanation:

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The number 1.3,1/1/3,1.34 in least to greatest
elixir [45]
1.3, 1 1/3, 1.34

The decimal version of 1 1/3 is 1.333 (so on)

so 1.3 is less than 1.333 and 1.333 is less than 1.34

1.3<1.333<1.34
4 0
4 years ago
Simplify the square root of 2 times the cube root of 2.
aev [14]

Answer:

two to the five sixths power

Step-by-step explanation:

\sqrt{2} *\sqrt[3]{2} =2^{\frac{1}{2} }*2^{\frac{1}{3} } = 2^{\frac{1}{2} +\frac{1}{3}}=\\=2^{\frac{5}{6} }

6 0
3 years ago
What is 0.00277 scientific notation?
Harlamova29_29 [7]
2.77 × 10 ^ ( -3 ) is the answer
3 0
3 years ago
Read 2 more answers
Q3) f(x) 2x^2 - 5x, g(x) = 3x^3 find g(4x)
mrs_skeptik [129]

Answer:

g(4x) = 192x^3

Step-by-step explanation:

For this problem, f(x) is irrelevant since we are simply are dealing with g(x).  We will simply replace the value of x in g(x) with 4x.  So let's do that.

g(x) = 3x^3

g(4x) = 3(4x)^3

g(4x) = 3(4^3)(x^3)

g(4x) = 3(64)(x^3)

g(4x) = 192x^3

Hence, g(4x) is 192x^3.

Cheers.

4 0
3 years ago
7. Graph 3x + 4y = 8​
Romashka-Z-Leto [24]

Answer:

y= -3/4x+2

Step-by-step explanation:

3x+4y=8

-3x       -3x

----------------

4y=-3x+8

Divided by 4 on each sides

y= -3/4x+2

7 0
3 years ago
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