3 years ago

Which expressions are equivalent?

Mathematics

1 answer:

madam [21]3 years ago

7 0

<span>
Answer: C.3x-7y and 3y-7x</span>

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5x-4-7x+14 x is a variable

Bess [88]

Answer:

yes

Step-by-step explanation:

Answere=(-2x+10)

hope it help you

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Given the right triangle below, what is the length of the hypotenuse

Leviafan [203]

Answer:

5 sqrt(10) = c

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2 + b^2 = c^2

9^2 + 13^2 = c^2

81 + 169 = c^2

250 = c^2

Take the square root of each side

sqrt(250) = c

sqrt(25) sqrt(10) = c

5 sqrt(10) = c

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Use the scale factor 1:12 to find the missing dimension.

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3 years ago

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Simplify the expression. State any excluded values.<br><br> x^ 2 - 36/42x - 7x^ 2

REY [17]

Consider the expression $x^2-\dfrac{36}{42}x-7x^2.$

This expression contains two terms with $x^2,$ group them:

$x^2-7x^2=x^2(1-7)=-6x^2.$

Now simplify term $\dfrac{36}{42}x=\dfrac{6}{7}x.$

Now $x^2-\dfrac{36}{42}x-7x^2=-6x^2-\dfrac{6}{7}x=6\left(-x^2-\dfrac{1}{7}x\right)=-6x\left(x-\dfrac{1}{7}\right).$

This expression is defined for all x.

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3 years ago

HOW DO YOU DO THIS? PLEASE HELP

Maurinko [17]

What do you need help with there is no picture

6 0

3 years ago