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2 years ago

PLEASE HELP!!! PLEASE HELP!!!

Mathematics

2 answers:

Nostrana [21]2 years ago

5 0

A. x - 6

hope that helps

vodomira [7]2 years ago

5 0

Answer:

Step-by-step explanation:

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A car can travel 28 miles per 1 gallon of gas. How far can the car travel on 14 gallons of gas

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392 miles in all.

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3 years ago

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kolbaska11 [484]

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3 years ago

Meike earned $1565 in tips while working a summer job at a coffee shop. She wants to use this money to take a trip to Europe nex

juin [17]

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3 years ago

Need the steps too this

ruslelena [56]

The value of x is 9.

We have : - 25 = 7 - (5x - 13)

We have to find the value of x.

<h3>If f(x) = g(x), than what do you understand by true solution of this equation?</h3>

The true Solution of the equation is the value of x for which LHS = RHS.

For example - if ax + b = cx + d , then

ax - cx = d - b

x = $\frac{d-b}{a-c}$ is the true solution of the equation.

In the question given -

- 25 = 7 - (5x - 13)

- 25 = 7 - 5x + 13

5x = 45

x = 9

Hence, the value of x for which LHS = RHS is 9.

To solve more questions on finding unknown variable, visit the link below -

brainly.com/question/6866597

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3 0

2 years ago

Find the angle between the vectors u=i-9j and v=8i+5j

Katyanochek1 [597]

Answer: $\cos^{-1} \left(\frac{-37}{\sqrt{7298}} \right) \approx 115.665^{\circ}$

Step-by-step explanation:

$u \cdot v=(1)(8)+(-9)(5)=-37\\\\|u|=\sqrt{1^{2}+(-9)^{2}}=\sqrt{82}\\\\|v|=\sqrt{8^{2}+5^{2}}=\sqrt{89}\\\\\cos \theta=\frac{-37}{\sqrt{82}\sqrt{89}}\\\\\theta=\cos^{-1} \left(\frac{-37}{\sqrt{82}\sqrt{89}} \right)\\\\\theta=\boxed{\cos^{-1} \left(\frac{-37}{\sqrt{7298}} \right) \approx 115.665^{\circ}}$

7 0

2 years ago