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Marina CMI [18]

3 years ago

8

Helps plz and no links

2 answers:

Vaselesa [24]3 years ago

3 0

Answer:

1+2+3- -9+236359

Step-by-step explanation:

nignag [31]3 years ago

3 0

Answer:

y=-4x-7

Step-by-step explanation:

if you use the slope formula, y2-y1 over x2-x1 using any two points from the grid, you get a slope of -4.

if you use the slope intercept form, y=mx+b, and plug in y, m the slope, and x, you get -3=-4(-1)+b

if you solve that, you get -3=4+b

and if you isolate 4 by subtracing 4 from both sides, b=-7.

then you plug slope and y intercept into formula, and get y=-4x+b

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the lenght of an arc in a circle with diameter 10 inches is 1.25π inches. determine the measure of the arc.

Luda [366]

Answer:

$the \: angle \: is \: 0.25\pi$

Step-by-step explanation:

the arc length is equal to the radius x angle (in radians)

$s=ra$

s= arc length, r= radius and a= the angle

solve for a ; a= s/r; a=

$1.25\pi/5$

4 0

3 years ago

What are the solutions of the equation (2x + 3)2 + 8(2x + 3) + 11 = 0

Tom [10]

Answer:

$x=\frac{-7-\sqrt{5}}{2}$ or $x=\frac{-7+ \sqrt{5}}{2}$

Step-by-step explanation:

The given equation is

$(2x+3)^2+8(2x+3)+11=0$

Let us treat this as a quadratic equation in $(2x+3)$ .

where $a=1,b=8,c=11$

The solution is given by the quadratic formula;

$(2x+3)=\frac{-b\pm \sqrt{b^2-4ac} }{2a}$

We substitute these values into the formula to obtain;

$(2x+3)=\frac{-8\pm \sqrt{8^2-4(1)(11)} }{2(1)}$

$(2x+3)=\frac{-8\pm \sqrt{64-44} }{2}$

$(2x+3)=\frac{-8\pm \sqrt{20} }{2}$

$(2x+3)=\frac{-8\pm2\sqrt{5} }{2}$

$(2x+3)=-4\pm \sqrt{5}$

$(2x+3)=-4-\sqrt{5}$ or $(2x+3)=-4+ \sqrt{5}$

$2x=-3-4-\sqrt{5}$ or $2x=-3-4+ \sqrt{5}$

$2x=-7-\sqrt{5}$ or $2x=-7+ \sqrt{5}$

$x=\frac{-7-\sqrt{5}}{2}$ or $x=\frac{-7+ \sqrt{5}}{2}$

5 0

4 years ago

Y = x2 – 15x + 26<br> y = -3x - 6

pychu [463]

Answer:

um im pretty sure y = -15 and x = -17 but im pretty sure i did that wrong too lol sorry if it is wront

Step-by-step explanation:

5 0

3 years ago

Finding product for 4 digit numbers

Amanda [17]

One answer would be15669012

7 0

3 years ago

Solve for e. (-7) = e/3 + 14

raketka [301]

<span>(-7) = e/3 + 14

Subtract 14 on both sides

-7 - 14 = e/3 + 14 - 14

-21 = e/3

Multiply by 3 on both sides

-21 * 3 = e/3 * 3

-63 = e</span>

5 0

3 years ago