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Alinara [238K]
2 years ago
13

Solve the system of equation y=4x-3 Y=-2x+9

Mathematics
1 answer:
Anna [14]2 years ago
5 0
Y=4x-3=1
Y=-2x+9=11 that’s the answer
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I need help!!! and make sure its 100 percent right!! my graduation is at rate of not passing
geniusboy [140]

Answer:

I'm not 100% sure I'm right but I think x = -1

because it says "f(x)" and then it says"Find f(-1)" so that is why I think x = -1

6 0
2 years ago
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Y= 7x - 19<br> y= 3x - 7<br><br> Solve for x and then use X to solve for y. (find x and y)
stepladder [879]

Answer:

(2,3)

Step-by-step explanation:

7 0
2 years ago
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Selena was comparing the flying speeds of different birds in science class. Which of the three birds flies fastest? Why?
Mashcka [7]

Answer:

Option C. The robin flies fastest because its rate is 15 m/s

Step-by-step explanation:

Let

x -----> the time in seconds

y ----> the distance in meters

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In this problem, the slope or unit rate of the linear equation is the same that the speed

<em>Robin's Flight</em>

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m=\frac{y2-y1}{x2-x1}

take two points from the table

(2,30) and (3,45)

substitute in the formula

m=\frac{45-30}{3-2}

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<em>Cardinal's Flight</em>

y=10x

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<em>Blue Jay's Flight</em>

take two points from the graph

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m=\frac{20-0}{2-0}

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4 0
3 years ago
Express sin A,cos A and tan A as ratios
OverLord2011 [107]

Answer:

Part A) sin(A)=\frac{2\sqrt{42}}{23}

Part B) cos(A)=\frac{19}{23}

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Step-by-step explanation:

Part A) we know that

In the right triangle ABC of the figure the sine of angle A is equal to divide the opposite side angle A by the hypotenuse

so

sin(A)=\frac{BC}{AB}

substitute the values

sin(A)=\frac{2\sqrt{42}}{23}

Part B) we know that

In the right triangle ABC of the figure the cosine of angle A is equal to divide the adjacent side angle A by the hypotenuse

so

cos(A)=\frac{AC}{AB}

substitute the values

cos(A)=\frac{19}{23}

Part C) we know that

In the right triangle ABC of the figure the tangent of angle A is equal to divide the opposite side angle A by the adjacent side angle A

so

tan(A)=\frac{BC}{AC}

substitute the values

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8 0
2 years ago
How many dimes equal the value of 6 quarters.show you step​
4vir4ik [10]

Answer:

the answer to this complicated problem is 25

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