All categories

3 years ago

Plz help me

Mathematics

1 answer:

Artemon [7]3 years ago

5 0

5x
5x+3
x²
x² + 4
7^x
8^x + 3

You might be interested in

Need help rn 30 points

Ilia_Sergeevich [38]

Answer: X = ( $-\frac{5}{4}\\$ , 6)

Step-by-step explanation:

x(4x - 19) = 30

4x^2 - 19x = 30

4x^2 - 19x - 30 = 0

ax^2 + bx + c = 0

$X{1}=$ $\frac{-b+\sqrt{b^{2} -4ac}}{2a}\\$ = $\frac{19+\sqrt{(-19)^{2} -4(4)(-30)}}{2(4)}\\$ = 6

$X{2}=$ $\frac{-b-\sqrt{b^{2} -4ac}}{2a}\\$ = $\frac{19-\sqrt{(-19)^{2} -4(4)(-30)}}{2(4)}\\$ = $-\frac{5}{4}$ = -1.25

X = ( $-\frac{5}{4}\\$ , 6)

7 0

3 years ago

Which equation describes a line parallel<br> to y= 4x+ 5 through point (-2, 1)?

Tema [17]

Hi there!

For a line to be PARALLEL, it must contain the same slope.

The given line has a slope of 4, so we can use the point-slope formula to solve:

$\large\boxed{y - y_1 = m(x - x_1)}$

y1 = y-coordinate of given point

x1 = x-coordinate of given point

m = slope

Plug in the values:

$y - 1 = 4(x - (-2))\\\\y - 1 = 4(x + 2)$

Simplify:

$y - 1 = 4x + 8\\\\\boxed{y = 4x + 9}$

8 0

3 years ago

For the given expression, use only the Associative Property of Addition to enter an equivalent expression. 8 + a( +b ) =

Sergeeva-Olga [200]

Answer:

(8+a)+b

Step-by-step explanation:

8 0

3 years ago

Solve the following system of equations by using the method of your choice

topjm [15]

Answer:

(x, y) =(-6,4)

Step-by-step explanation:

3x-y=-28

-5x-4y=-10

y=3x+28

-5x-4(3x+28)=-10

y=3x+28

-5x-12x-112=-10

y=3x+28

-17x=-10+112

y=3x+28

-17x=102

y=3x+28

x=102/(-17)

y=3x+28

x=-6

y=3*(-6)+28

x=-6

y=-24+28

x=-6

y=4

x=-6

(x,y)=(-6,4)

6 0

3 years ago

PLEASE HELP! GIVING BRAINLIST!!

Lorico [155]

X=1 is(1,10). This means in terms of the snake population that after a year the snake population doubled and it’s 10 snakes now

6 0

3 years ago