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Taya2010 [7]
3 years ago
15

-5x+7+2x-13<9 Please Explain

Mathematics
1 answer:
olganol [36]3 years ago
8 0
Ok the answer is -5 less than 9 which is true lol


Anyways here’s how I got the answer

-5+7+2x-13 less than 9

Combine like terms in this case it’s -5 and 2, and the other is 7 and -13

-5+2= -3
7-13= -6

Ok now that that’s done here’s the next step

-3x-6 less than 9 solve it


-3x-6 < 9
+6< +6

-3x < 15



Now from there you divide then so
-3x/3 cancels out, and 15/-3 = -5
X=-5

And so -5<9 :) hope this helped!! I will also include a picture of my work (please exult messiness lol)

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So to find the x vertex u have to apply the formula x= -b/2a so it will be
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y= (2)^2-4(2)+1
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Hitman42 [59]

Answer:

80/4

Step-by-step explanation:

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3 years ago
A car is moving with a velocity (3.0 m/s) x̂ + (1.0 m/s) ŷ and 3.0 seconds later its velocity is (6.0 m/s) x̂ - (3.0 m/s) ŷ. Wha
Mars2501 [29]

Here we know that the initial velocity of the car is given by:

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It took 3 seconds to attain the final velocity, so we have t=3 s

Therefore, the acceleration can be obtained by:

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Plugging the values of the initial, final velocity and the time, we get:

a= \frac{(6\hat x-3\hat y)-(3 \hat x+1 \hat y)}{3} =\frac{6\hat x-3 \hat y -3 \hat x-1 \hat y}{3} =\frac{3 \hat x-4 \hat y}{3}

So the acceleration of the car is given by:

a=\frac{3 \hat x}{3} -\frac{4 \hat y}{3} =1 \hat x- \frac{4}{3} \hat y

Now we need to find the direction of the average acceleration of the car:

\theta=tan^{-1} \frac{y}{x}

Here, x and y are the coefficients of the 'x' and 'y' components of the vector:

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3 years ago
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vladimir2022 [97]
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3 years ago
2/3x - 7 = 1/4 What is x?
EleoNora [17]

Answer:

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