MATHEMATICS HIGH SCHOOL

Evaluate the expression for the value of x=-3. (If not possible, state the reason)
2x-2

Answers

Answer 1
Answer: 2x-2 x=–3
so,
2(–3)-2
-6-2 =
-8

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Five times a number is added to two times its square. if the result is 168, find the number
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Factor the Polynomial using the Grouping Method: 2ax-7a-2bx+7b

If p is the smallest of four consecutive even integers what is their sum interms of p. ​

Answers

Answer:

4p + 12

Step-by-step explanation:

p + p+2 + p+4 + p+6 = 4p + 12

GEOMETRY! What transformation transforms (p, q) to (q, p)​?

a) a reflection over the y-axis

b) a reflection over y = x

c) a rotation of 90° about the origin

d) a reflection over the x-axis

Answers

(q, p) is transformed from (p, q) by a reflection over y = x

Which statements are true? Check all that apply.The equation |–x – 4| = 8 will have two solutions.

The equation 3.4|0.5x – 42.1| = –20.6 will have one solution.

The equation = 0 will have no solutions.

The equation |2x – 10| = –20 will have two solutions.

The equation |0.5x – 0.75| + 4.6 = 0.25 will have no solutions.

The equation = 5 will have infinitely many solutions.

Answers

Using a graph tool

Let's proceed to analyze each case

case a) The equation|-x- 4| = 8 will have two solutions

Is true

The solutions are

x=-12\n x=4

see the attached figure N 1

case b) The equation 3.4|0.5x- 42.1| = -20.6 will have one solution

Is False

The equation has no solution

The term 3.4|0.5x- 42.1|

always will be positive

case c) Is not a equation

case d) The equation |2x- 10| = -20 will have two solutions.

Is False

The equation has no solution

The term |2x- 10|

always will be positive

case e) The equation |0.5x – 0.75| + 4.6 = 0.25 will have no solutions.

Is True

The left side of the equation always will be greater than or equal to 4.6

case f) The equation = 5 will have infinitely many solutions.

Is not a equation

therefore

the answer is

case a) and case e) are true

The sum of three consecutive multiples of 7 is 777 find these multiples

Answers

7n+7n+7+7n+14=777\n21n=756\nn=36\n\n7n=252\n7n+7=259\n7n+14=266

252,259,266

let the consecutive multiples be 7(n-1) , 7n and 7(n+1)

so 7(n-1)+7n+7(n+1)=777

or 3n=111,

n=37

252,259,266

Brendon sells tires at the local auto parts store. He told a customer that the tire width for a new tire was 21.5 centimeters. Which of the following describes the tire width for the new tire? Help please thank you!!!

Answers

Answer:

215 mm

Step-by-step explanation:

1 cm = 10 mm

21.5 cm * (10 mm)/(1 cm) = 215 mm

Answer: 215 mm

If the circumference of a circle is 8 pi what is the area of the circle

Answers

The equation for this problem would be A=C^2 divided by 4pi. Plugging in with the numbers it would be, 8pi^2 / 4pi. This then comes to the new equation 64pi / 4 pi when solving this it comes to the solution if 16 being the answer.

Answer: 16

8pi=c
8=d
4=r
4^2pi=a
a=16pi
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