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emmainna [20.7K]

3 years ago

10

Help please ASAP!!!!!

1 answer:

Natali [406]3 years ago

8 0

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What is the value of y?

777dan777 [17]

Answer:

i need a quetion to be able to answer

Step-by-step explanation:

6 0

4 years ago

Read 2 more answers

Does any one know the answer please

Fittoniya [83]

Answer:

Slope intercept form

Step-by-step explanation:

y = Mx + B

M = slope - 7/11

B = y intercept - 5

5 0

3 years ago

3. The path of an underground stream is given by the function y = 4x² +17x -32. Two

sineoko [7]

Answer:

The coordinate of the wells are

$(-4 -\sqrt[]{\frac{53}{2}}, 70+15\sqrt[]{\frac{53}{2}})$

$(-4 +\sqrt[]{\frac{53}{2}}, 70-15\sqrt[]{\frac{53}{2}})$

Step-by-step explanation:

The y coordinate of the stream is given by $y = 4x^2+17x-32$ . Also, the y coordinate of the houses are determined by y=-15x+10. We will assume that the houses are goint to be built on the exact position where we build the wells. We want to build the wells at the exat position in which both functions cross each other, so we have the following equation

$4x^2+17x-32 = -15x+10$

or equivalently

$4x^2+32x-42=0$ (by summing 15x and substracting 10 on both sides)

Dividing by 2 on both sides, we get

$2x^2+16x-21=0$

Recall that given the equation of the form $ax^2+bx+c=0$ the solutions are

$x = \frac{-b \pm \sqrt[]{b^2-4ac}}{2a}$

Taking a =2, b = 16 and c = -21, we get the solutions

$x_1 = -4 -\sqrt[]{\frac{53}{2}}$

$x_2 = -4 +\sqrt[]{\frac{53}{2}}$

If we replace this values in any of the equations, we get

$y_1 = 70+15\sqrt[]{\frac{53}{2}}$

$y_2 = 70-15\sqrt[]{\frac{53}{2}}$

4 0

3 years ago

Identify the terms and factors :

Charra [1.4K]

refer the attachment for your answer

8 0

3 years ago

What is the value of x + y? How do you know? Show or explain work

enot [183]

The angle (2y - 5)° and 95° are vertical angles, then they are congruent, that is,

$2y-5=95$

Solving for y:

$\begin{gathered} 2y-5+5=95+5 \\ 2y=100 \\ \frac{2y}{2}=\frac{100}{2} \\ y=50 \end{gathered}$

The angle (3x + 55)° and 85° are vertical angles, then they are congruent, that is,

$3x+55=85$

Solving for x:

$\begin{gathered} 3x+55-55=85-55 \\ 3x=30 \\ \frac{3x}{3}=\frac{30}{3} \\ x=10 \end{gathered}$

Finally, the value of x + y is:

$x+y=10+50=60$

6 0

1 year ago