3 years ago

PLEASE HELP IF YOU ARE GOOD AT MATH THANKS

Mathematics

1 answer:

Scrat [10]3 years ago

4 0

Y=4(x+1)
the form is y=mx+b, and they already gave you b so you just need to find m(slope) by rise over run

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Select the two values of x that are roots of this equation. 2x+11x+15= 0

Amiraneli [1.4K]

Answer:

The roots of the equation are x=-3 and x=-2.5

Step-by-step explanation:

The correct quadratic equation is

2x^2+11x+15=0

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$ is equal to

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

in this problem we have

$2x^{2} +11x+15=0$

$a=2\\b=11\\c=15$

substitute in the formula

$x=\frac{-11(+/-)\sqrt{11^{2}-4(2)(15)}} {2(2)}$

$x=\frac{-11(+/-)\sqrt{121-120}} {4}$

$x=\frac{-11(+/-)\sqrt{1}} {4}$

$x=\frac{-11(+/-)1} {4}$

$x_1=\frac{-11(+)1}{4}=-2.5$

$x_2=\frac{-11(-)1}{4}=-3$

therefore

The roots of the equation are x=-3 and x=-2.5

5 0

3 years ago

There is a spinner with 15 equal areas, numbered 1 through 15. If the spinner is spun

d1i1m1o1n [39]

Answer:

7 / 15= 0.47

Step-by-step explanation:

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3 years ago

1. Find the next three term. 3,6,12,24

Ivanshal [37]

Answer:

48 96 and 192

Step-by-step explanation:

you just have to multiply by two

3 0

3 years ago

How do you find the mean in the list 46, 38, 53, 34,27, 54?

Alja [10]

Mean means average (no pun intended)

HOW TO FIND THE MEAN
so basically to find the mean let's say you have 4 terms x,y,z,t
to find the mean, add them and divide by the number of terms you have (4)
(x+y+z+t)/4=mean

so we have the numbers
46,38,53,34,27,54
6 numbers total
add then and divide by 6
(46+38+53+34+27+54)/6=252/6=42

answe ris 42

4 0

4 years ago

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4(2y+3)-2*2. Y=3 Pls help

JulijaS [17]

Answer:

4(2×3+3)-2×2

4(9)-4

36-4

8 0

3 years ago

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