MATHEMATICS MIDDLE SCHOOL

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

Answer 1

Answer:

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

$>$

Answer 2

Answer: 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

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What is the value of X in the equation 8+ X equals three

Answers

its the solution to 8+X=3 is X=-5

What is the area of a right triangle with a leg length of 15 feet and hypotenuse length of 39 feet

Answers

The formula of the area of a triangle is given by

A=(1/2)a*b

where a and b are the two shortest legs of the triangle, keeping in mind that the longest side of a triangle is the hypotenuse.

Since we are given with the length of a short leg and the hypotenuse, we can calculate for the length of the second short leg through the Pythagorean Theorem which is given as

c^2=a^2+b^2

Hence,

(39)^2=(15)^2+b^2
1521=225+b^2
1296=b^2
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The length of the other short leg is then 36 ft. Substituting this to the formula of the area we have

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6. Sophina bought 3 yards of trim to put around arectangular scarf. She wants the width of the scarfto bea whole number that is at least 6 inches and at most 12inches. If she uses all the trim, what are the possibledimensions of her scarf? Write your answers in inches

Answers

Well simply we need to understand how many feet there are in a yard
in this case
1 yard = 3 feet
1 foot = 12 inches
so 12 x 3 = 36
So the total perimeter of her scarf was 36 inches!
so some possible dimentions of her scarf could be 7 inches wide and 11 inches long.
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Answers

Answer:

12:05PM

Step-by-step explanation:

The answer to your question is 12:05 PM. God Bless!

-2x-6+(x/4)-3+90=180. Solve for x and show work.

Answers

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