MATHEMATICS HIGH SCHOOL

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

Answer 1

Answer:

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

Related Questions

Sarah Meeham blends coffee for Tasti-Delight. She needs to prepare 100 pounds of blended coffee beans selling at $4.58 per pound. She plans to do this by blending together a high quality bean costing $5.25 per pound and a cheaper coffee bean at $3.00 per pound. To the nearest pound find how much high quality coffee bean and cheaper coffee bean she should blend.
A restaurant chain ordered 3945 pounds of rice in 20 pound bags. About how many 20 pound bags of rice did the chain ordered ?
What is y=6x-4 in standard form
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Sorry for all the math questions but I do not understand this at all. someone explain and write the equation for me please?? they are the exact words... doesn't make sense to me:the sum of three times a number (z) and 15 is equal to 21.

2x+4y=12 y=0.25x-3 What is the solution to the system of equations?(–1, 8)
(8, –1)
(5,1/2) 0r (1/2,5)

Answers

{ 2 x + 4 y = 12
y = 0.25 x -3

Arrange equation variables of elimination :

{ 2 x + 4 y = 12
-0.25 x + y = - 3

Multiply ( -0.25 x +y = - 3 ) by 8 :

8y - 2 x = - 24

{ 2 x + 4y = 12
-2x + 8y = -24
----------------------
12 y = -12

y = - 12 / 12

y = - 1

For x :

2 x + 4y = 12

2 x + 4 ( - 1 ) = 12

2 x - 4 = 12

2 x = 12 + 4

2 x = 16

x = 16 / 2

x = 8

x = 8 and y = - 1 => ( 8 , - 1 )

Answer b

hope this helps!

A gourment shop wants to mix coffe beans that cost $3.00 per pound with coffe beans that cost $4.25 per pound to create 25 pounds of a new blend that cost $3.50 per pound. Find the number of pounds of each nerded to produce the new blend

Answers

If the gourmet shopkeeper mix 15 pounds of coffee beans which costs 3.0$ per pound with 10 pounds of coffee beans costing 4.25$ per pound.
The mixture of 25 pounds will cost 3.5$ per pound.

It can be found using
3*x + 4.25*(25 -x) = 25*3.50

The perimeter of a rectangle is 30 cm. The width of the rectangle is 7 cmWhat is the area of the rectangle?

A) 56 cm

B) 49 cm

C) 14 cm

Answers

Let's say the length of the rectangle is L.

We have P= (L+W)*2
⇒ 30 cm= (L+ 7 cm)*2
⇒ L+ 7 cm= 15 cm
⇒ L= 8 cm.

S= L*W= 8 cm* 7 cm= 56 cm^2.

The answer is A) 56 cm^2.

Hope this helps~

perimeter = 2(l+w)
30 = 2(l+7)
30 = 2l + 14
30 - 14 = 2l
16 = 2l
8 = l

l = 8
w = 7

area = l x w = 8 x 7 = 56 cm²

Jose Rodriguez's checking account had a starting balance of $1,234.56. He wrote a check for $115.12 for plumbing supplies and a check for $225.00 for a loan payment. Yesterday he deposited $96.75 in his checking account. What is Jose's current balance? A. $1,441.19 B. $991.19 C. $894.44 D. $1,477.93

Answers

First we need to subtract the payments he made for plumbing supplies and his loan. Then we must add the sum he deposited. So in total we have: 1234.56 - 115.12 - 225 + 96.75, which gives us 991.19. The correct answer is B.

PLEASE HELP ME :) 20 points

Answers

Answer:

its d thats the right anwsers

Step-by-step explanation:

1. The Table shows ticket prices for a concert. Child Student Adult Cost Purchased in Advance $6 $12 $18 Cost Purchased at the door $8 $15 $22 a. What is the average student ticket price? b. What is the average for a ticket purchased at the door? c. would adding the rows provide any meaningful information?

Answers

Answer : Its $15

Step-by-step explanation:

Because thats the average price for a student.

I know its correct!!!

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