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3 years ago

Solve the system of equations by the substitution method: 4x-y = 35 7x + 6y = 38

Mathematics

1 answer:

Leokris [45]3 years ago

8 0

Answer:

x=8 and y=−3

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Find the measure of the complemeny of angle m where m is 31.1

lana66690 [7]

The answer is: " 58.9° " .
___________________________
By definition, two (2) complementary angles must add up to 90°.

___________________________

" 90 - 31.1 = 58.9 " .
___________________________

8 0

3 years ago

What is the simplest form of 6 radical 8 plus 8 radical 2

arsen [322]

Answer:

20 $\sqrt{2}$

Step-by-step explanation:

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

Simplify

$\sqrt{8}$ = $\sqrt{4(2)}$ = $\sqrt{4}$ × $\sqrt{2}$ = 2 $\sqrt{2}$

Thus

6 $\sqrt{8}$ + 8 $\sqrt{2}$

= 6(2 $\sqrt{2}$ ) + 8 $\sqrt{2}$

= 12 $\sqrt{2}$ + 8 $\sqrt{2}$

= 20 $\sqrt{2}$

8 0

4 years ago

What is bigger 7/8 or 14/15

GalinKa [24]

14/15 is .93333333333333333 and 7/8 is .875 so 14/15 is
bigger

8 0

4 years ago

The length of the hypotenuse is

Papessa [141]

It MUST be a right triangle for this formula to work, please comment if it is not a RIGHT triangle

$c=\sqrt{a^{2}+b^{2} } 
$

a and b being the lengths of the legs of the triangle (the 2 sides that are not the hypotenuse) and c being the hypotenuse's length.

3 0

4 years ago

Select the correct answer.

svetlana [45]

Step-by-step explanation:

The over all order of the reaction with the rate law of rate=k[A][B] is 2 since the exponent for [A] is 1 and the exponent for [B] is 1 and 1+1=2.

for example the order for the rate law rate=[A]²[B] is 3 since 2+1=3 and the order for a rate law of rate=[A]²[B]³ the order would be 5 since 2+3=5.

I hope this helps. Let me know if anything is unclear.

3 0

3 years ago