MATHEMATICS MIDDLE SCHOOL

Input the equation of the given line in slope-intercept form. The line with m = 2 and b = -4.

Answers

Answer 1

Answer:

Answer:

y = 2x - 4

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + b ( m is the slope and b the y- intercept )

here m = 2 and b = - 4

y = 2x - 4 ← equation of line

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The value of Maggie's car decreased by 25% since last year, when she bought it. If the car is now worth $18,000.00, how much was the car worth when she bought it?A.
$25,714.29
B.
$24,000.00
C.
$22,500.00
D.
$19,500.00

Answers

B. 24,000.
The car was worth 24,000 when she bought it.

25% = equivalent of the decreased value
18,000 = net of the decrease value

Original value = 18,000 / (100% - 25%)
= 18,000 / 75%
Original value = 24,000

Decrease value = 24000 * 25%
= 6000

Net Value = 24,000 - 6000
= 18,000

Which value for x makes the open sentence true?4 • 3 - 2x < X to the 2nd power - 2

A. 0
B. 1
C. 2
D. 3

Same question.

6 • 7 – 5x + x2 ≥ x3 + x2

A. 5
B. 6
C. 4
D. 3

Which symbol creates a true sentence when x equals 3?

8 • 3 – 4x _____ 7(10 – x)

A. >
B. <
C. =
D. ≈

Which symbol creates a true sentence when x equals 8?

9 • 4 – 2x _____ 5(11– x)

A. =
B. >
C. <
D. ≈

Please help me A.S.Y.C.

Answers

we know that

The easiest way to find the number that makes the statement true is to substitute the given answers into the equation.

Part 1)

$4.3-2x < x^(2) -2$

a) For $x=0$

$4.3-2*0 < 0^(2) -2$

$12 < -2$ -----> is false

b) For $x=1$

$4.3-2*1 < 1^(2) -2$

$10 < -1$ -----> is false

c) For $x=2$

$4.3-2*2 < 2^(2) -2$

$8 < 2$ -----> is false

d) For $x=3$

$4.3-2*3 < 3^(2) -2$

$6 < 7$ -----> is true

therefore

the answer part 1) is the option D

$x=3$

Part 2)

$6*7-5x+x^(2) \geq x^(3) +x^(2)$

a) For $x=5$

$6*7-5*5+5^(2) \geq 5^(3) +5^(2)$

$42 \geq 150$ ----> is false

b) For $x=6$

$6*7-5*6+6^(2) \geq 6^(3) +6^(2)$

$48 \geq 252$ ----> is false

c) For $x=4$

$6*7-5*4+4^(2) \geq 4^(3) +4^(2)$

$38 \geq 80$ ----> is false

d) For $x=3$

$6*7-5*3+3^(2) \geq 3^(3) +3^(2)$

$36 \geq 36$ ----> is True

therefore

the answer Part 2) is the option D

$x=3$

Part 3)

we have

$8*3-4x\ (\ )\ 7*(10-x)$

For $x=3$

$8*3-4*3\ (\ )\ 7*(10-3)$

$12\ (\ )\ 49$

we know that

$12 < 49$

therefore

the answer Part 3) is the option B

$<$

Part 4)

we have

$9*4-2x\ (\ )\ 5*(11-x)$

For $x=8$

$9*4-2*8\ (\ )\ 5*(11-8)$

$20\ (\ )\ 15$

we know that

$20 > 15$

therefore

the answer Part 4) is the option B

$>$

9. 4- 2(8) = -12
55-40 = 15
so C is true
8. B

3 and 6 i dont know . seems : 4 . C & D are both correct
6 . All correct

Write the volume in cm3 of a container which holds 2.250litre?

Answers

2.250 litre = 2.250 dm³ = 2.250×1.000 cm³ = 2 250 000 cm³

only 6 of the 75 trees in the park are at leat 30 feet tall. what percent of the trees are over 30 feet?

Answers

Answer:

8 %

Step-by-step explanation:

To find the percent of trees that are over 30 ft tall, take the number of trees that are over 30 ft tall over the number of tree

Percent = trees over 30 ft tall/ total number of trees

= 6/75

=.08

Change this to a percent by multiply by 100%

.08 * 100%

8 %

What is twenty five times three?

Answers

To find 25x3, you could just add 25 3 times like this 25+25+25. But since 4 quarters equaling 25 cents each is 100 cents, 3 quarters is 75 cents. That being said, 25x3=75

twenty five times three is 75

What is the equation of the line that has a slope of 2/3 and a y-intercept of 3?

Answers

Answer: y=2/3x+3

*Remember the original equation in slope-intercept form*

y=mx+b

*label that with what each letter stands for*

m=slope/rate of change
x=variable
b=y-intercept

*Substitute this information into the equation

y=2/3x+3

Hope this helps comment below for more questions :)

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