3 years ago

• If 7x +5= 2x +9, then x= ?

Mathematics

1 answer:

Oksana_A [137]3 years ago

6 0

Answer:

x=4/5

Step-by-step explanation:

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Using radicals write an equivalent expression for the expression y 1/5

ruslelena [56]

Assuming yo meant $y^ \frac{1}{5}$

reemmber
$x^ \frac{m}{n}= \sqrt[n]{x^m}$

so

$y^ \frac{1}{5}= \sqrt[5]{y^1}= \sqrt[5]{y}$

7 0

4 years ago

I NEED HELP WITH NUMBER 3 PLEASE HELP I WILL MARK BRAINLIEST. NO LINKS. IM BEING TIMEDDDD

ra1l [238]

Answer:

210.65 ft

round as needed

Step-by-step explanation:

Law of Cosines

c^2 = a^2 + b^2 - 2abCosC

c^2 = 125^2 + 210^2 - 2(125)(210)Cos73

c^2 = 15,625 + 44,100 - 15349.5

c^2 = 44,375.5

c = 210.654931107724132

3 0

3 years ago

what is the length of the side of a right triangle that has a hypotenuse that is 15 mm and a side of 9 mm

ratelena [41]

C) 27 mm
Hope this helps

4 0

3 years ago

What is the slope, m, of the line represented by the table below?

xxMikexx [17]

Answer:

1/3

Step-by-step explanation:

-4 - (-3)= - 1

-12 -(-9)=-3

two negatives make a positive

-1/-3 = 1/3

3 0

3 years ago

Simplify the expression. Write the answer with positive exponents only. Assume the variable represents a nonzero real number.

luda_lava [24]

Answer:

$\frac{1}{w^{29}}$

Step-by-step explanation:

The given expression is $\frac{w^{-7}(w^{-9})^2}{w^4}$ .

Since, $w^{-7}=\frac{1}{w^7}$

And $w^{9}=\frac{1}{w^9}$

Expression will become,

$\frac{w^{-7}(w^{-9})^2}{w^4}=\frac{\frac{1}{w^7}(\frac{1}{w^9})^2}{w^4}$

$=\frac{\frac{1}{w^7\times w^{18}}}{w^4}$

$=\frac{\frac{1}{w^{(7+18)}}}{w^4}$

$=\frac{1}{w^{25}}\times \frac{1}{w^4}$

$=\frac{1}{w^{25}\times w^4}$

$=\frac{1}{w^{29}}$

Therefore, Simplified form of the given expression will be $\frac{1}{w^{29}}$ .

3 0

3 years ago