5x+12= -13 (find the x)

Answers

Answer 1

Answer: The answer is negative 5 because you subtract 12 from each side to get 5x=-25 and -25 divided by 5 is negative 5

Answer 2

Answer: Hey, Jamylovesdonuts!
5x+12=-13
5x=-13-12
5x=-25
x=-5
I hope this helps;)

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Given that f(x) = 2x −5, find the value of x that makes f(x) = 15.

Helpppp plz will give brainliest

Answers

11x = 44
X=4
44 + 7 = 51

5x = 20
31 + 20 =51

51 = 51

Mr young has 30 times as many pencils as jack. The whole class has 200 times as many pencils as jack. If jack has 2pencils, how many pencils does mr young have ? And the whole school have?

Answers

well you would do 30*2= 60
and that would be your answer

X^2+6x+c=13+c what is c

Answers

I believe you factor it then solve using quadratic and get -3+ *Insert Square root* 22 and -3 - *Insert Square root* 22

Find all numbers such that the square of the number is 48 more than double the number. If you find more than one, then list all the numbers you find in increasing order, separated by commas.?

Answers

Answer:

-6, 8

Step-by-step explanation:

Let the numbers be represented by y

Square of y = y^2

Double y = 2 × y = 2y

Square of the number is 48 more than double the number is written mathematically as

y^2 = 2y +48

y^2 - 2y - 48 = 0

This is a quadratic equation and can be solved by method of factorisation

y^2 -2y - 48 = 0

y^2 + 6y - 8y - 48 = 0

(y^2 + 6y) - (8y - 48) = 0

y(y + 6) - 8(y + 6) = 0

(y + 6)(y - 8) = 0

y = -6, 8

The numbers are -6, 8

Answer:

8, -6

Step-by-step explanation:

Let the number be $n$, so we have $n^2 =48 + 2n$. Rearranging this equation gives $n^2 -2n-48=0$ and factoring gives $(n-8)(n+6)=0$. So, the numbers that fit the problem are $\boxed{n = -6~\text{and}~n = 8}$.

Line j passes through points (-6,1) and (-3,6) .line m is parallel to line j and passes through point (15,-1). what is the equation of line m ?

Answers

Slope of line j;
m= $(change in x)/(change in y)$
m= $(6-1)/(-3--6)$
m= $(5)/(3)$
Parallel lines have equal gradients;
So,
y=mx+c
y=5/3x+c
Replacing for x and y;
-1=5/3(15)+c
-1=25+c
c=-26
y= $(5)/(3) x-26$

HELP EXPLAIN STEP BY STEP In a circle whose radius is 8, the length of an arc of the circle is 2π. In radians, what is the measure of the central angle subtended by the arc?

Answers

Answer:

$(\pi)/(4)$

Step-by-step explanation:

We have been given that the radius of a circle is 8 and the length of an arc of the circle is 2π. We are asked to find the measure of central angle subtended by the arc in radians.

We know that the arc length of a circle is equal to central angle times the radius of circle.

$\text{ Arc length}=\theta\cdot r$

$2\pi =\theta\cdot 8$

$(2\pi)/(8)=(\theta\cdot 8)/(8)$

$(\pi)/(4)=\theta$

Therefore, the measure of central angle is $(\pi)/(4)$ radians.

arc length = rθ [r = radius of the circle, θ = central angle in radians] ⇒

2π = 8*θ ⇒ θ = 2π/8 = π/4

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