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3 years ago

2x+5y=-6 , wht is the x intercept, what is the y intercept

1 answer:

7 0

These are the xx and yy intercepts of the equation 2x−5y=62x-5y=6.x-intercept: (3,0)(3,0)y-intercept: (0,−65)

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How many obtuse angel does the triangle have

Dmitriy789 [7]

Answer:

an obtuse angle is greater than 90 and if you think about it 90 plus 90 equals. 180 so if you had two obtuse angles both greater than 90 you would have more than 180 degrees. so the answer for how many angles. of two are in an obtuse triangle is one right here.

6 0

3 years ago

Find all pairs of real numbers $(x,y)$ such that $x + y = 6$ and $x^2 + y^2 = 28$. if you find more than one pair, then list you

vivado [14]

1. $x^2+y^2=28$ and x+y=6

2. x^2+y^2 and x+y remind us of the formula: $(x+y)^{2}= x^2+y^2+2xy$

substituting we get:

$6^{2}= 28+2xy$

2xy=36-28
xy=8/2=4

3 Let's solve the system of equations i)x+y=6 and ii)xy=4

substitute y=4/x in (i):

$x+ \frac{4}{x} =6$

multiply all sides by x:

$x^{2} +4=6x$

$x^{2} -6x+4=0$

complete the square:

$x^{2} -6x+4=x^{2} -2*3x+9-9+4= (x-3)^{2}-5=0$

$x-3=\sqrt{5}$ or $x-3=-\sqrt{5}$

$x=3+\sqrt{5}$ or $x=3-\sqrt{5}$

so from x+y=6, y=6-x

case 1, $x=3+\sqrt{5}$ gives $y=3-\sqrt{5}$

case 2, $x=3-\sqrt{5}$ gives $y=3+\sqrt{5}$

Answer:

$(3-\sqrt{5}, 3+\sqrt{5})$ , $(3+\sqrt{5}, 3-\sqrt{5})$

3 0

3 years ago

Can anyone help, please and thank you

Akimi4 [234]

A is the center of the dilation because it is being delarged(is that even a word) by a factor of 2 downwards, and the only place possible to be the center of this "delargation" is A

4 0

3 years ago

A person is chosen at random. What is the probability that they passed the driving test?

Cerrena [4.2K]

<h3>Answer: 4/5</h3>

Explanation:

We have 24 adults who passed and 16 teens who passed. So 24+16 = 40 people passed total.

There are 24+8+16+2 = 50 people total

If you pick someone at random, the probability of them passing is 40/50 = 4/5.

In decimal form, this is 4/5 = 0.80 which converts to 80%

7 0

3 years ago

He volume of a rectangular prism with sides 3 ft, 4 ft, and h ft must be at least 36 cubic ft. Write and solve an inequality tha

levacccp [35]

Answer:sorry dude

Step-by-step explanation:I got nothing

5 0

3 years ago