3 years ago

Please help me with this

Mathematics

1 answer:

Andre45 [30]3 years ago

7 0

Your answer will be 69 people

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Find the point 3x - 7x₂ =5. of the lines x, - 5x2 = 1 and of intersection

tia_tia [17]

Answer:

( $\frac{9}{4},\frac{1}{4})$

Step-by-step explanation:

We are given that two lines

$x_1-7x_2=5$ and $x_1-5x_2=1$

We have to find the intersection point of two lines

Let $3x_1-7x_2=5$ (equation 1)

$x_1-5x_2=1$ (Equation 2)

Multiply equation 2 by 3 then subtract from equation 1

$-7x_2+15x_2=5-3$

$8x_2=2$

$x_2=\frac{2}{8}=\frac{1}{4}$

Substitute $x_2=\frac{1}{4}$ in the equation 1

Then, we get

$3x_1-7\frac{1}{4}=5$

$3x_1-\frac{7}{4}=5$

$3x_1=5+\frac{7}{4}=\frac{20+7}{4}=\frac{27}{4}$

$x_1=\frac{27}{4\times 3}=\frac{9}{4}$

Hence, the intersection point of two given lines is ( $\frac{9}{4},\frac{1}{4})$

6 0

3 years ago

Solve: 4(x+1)= -3x-10 SHOW WORK!!!! WILL MARK BRAINLIEST

gtnhenbr [62]

Answer:

-2

Step-by-step explanation:

4x+4=-3x-10

7x=-14

x=-2

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3 years ago

Read 2 more answers

How do you find the missing base of an exponent? Example: <img src="https://tex.z-dn.net/?f=%20%20%7B%3F%7D%5E%7B3%20%7D%20%2

iVinArrow [24]

Well ? Multiplied by it self would be the answer so ?=5

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3 years ago

What is the range of y = sin θ ?

seraphim [82]

For the answer to the question above, For θ the range is between -infinity and infinity,
While y falls in the range from -1 to 1.
because y is an element of [-1, 1]
I hope my answer helped you in your problem. Have a nice day!

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3 years ago

Select all the expressions that are equivalent to the expression 0.6(-7 - 1.2x).

Salsk061 [2.6K]

Your answer is A C D F

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3 years ago