MATHEMATICS MIDDLE SCHOOL

3.25, 3.0, 2.75, 2.5, 2.25, ...What is the rule to continue this decimal number pattern?
increase by 0.5
increase by 0.25
decrease by 0.5
decrease by 0.25

Answers

Answer 1
Answer: 3.25 - 3 = 0.25
3 - 2.75 = 0.25
2.75 - 2.5 = 0.25
2.5 - 2.25 = 0.25

Since we subtracted those numbers, it means we are decreasing.
Therefore, the answer is decrease by 0.25.
Answer 2
Answer: you are decreasing by 0.25 . Each time you are subtracting only .25 to each number . +

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What is the value of the function at x = 2?Enter your answer in the box.

What number is greater than 714587

Answers

A number greater than 714587 is 714588 and any number above that.
well there are many numbers greater than 714587 so the numbers that are greater than 714587 is 714588 to infinity

Which of the following expressions are equivalent to 48^3-75a? Select all that apply.A.) 3(48^3-75a)
B.) 3a(16a^2-25)
C.) 3a(4a+5)(4a+5)
D.)3a(4a+5)(4a-5)
E.)-3a(25-26a^2)
F.) -3a(5-4a)(5+4a)

Answers

48a^3-75a=3a\cdot16a^2-3a\cdot25=\underbrace{3a(16a^2-25)}_(B.))\n\n=3a\left[(4a)^2-5^2\right]=\underbrace{3a(4a-5)(4a+5)}_(D.))=\underbrace{-3a(5-4a)(5+4a)}_(F.))

What is the surface area of a triangular pyramid if each face has an area of 30 mm2?A.
90 mm2

B.
160 mm2

C.
60 mm2

D.
120 mm

Answers

The answer must be 120\quad m{ m }^( 2 ) since the triangular pyramid has 4 faces and each has an area of 30 m{ m }^( 2 ) we should multiply that by 4 , so :

4\cdot 30\quad m{ m }^( 2 )=\quad 120\quad m{ m }^( 2 )

Answer:

120 i think

Step-by-step explanation:

A__is a ratio that compares a quantity to 100

Answers

Percent, or percentage
Percent or a percentage

Which expression is equivalent to 8x + 12y? A) 20xy B) xy + 20 C) 4xy(2 + 3) D) 4(2x + 3y)

Answers

Answer:

D is the answer

Step-by-step explanation:

4*2 is equal to 8 so it would be 8x 4*3y is equal to 12y
Use Photomath it will tell you the answer

Someone please help me make a proof for the bottom question

Answers

Answer:

DB = CA (Proved)

Step-by-step explanation:

Statement 1.

∠D = ∠C, M is the midpoint of DC and ∠1 = ∠2

Reason 1.  

Given

Statement 2.

Between Δ DBM and Δ CAM,  

(i) DM = CM,

(ii) ∠D = ∠C  and  

(iii) ∠DMB = ∠CMA

Reason 2.

(i) given  

(ii) given and  

(iii) ∠ DMB = ∠1 + ∠AMB and  ∠CMA = ∠2 + ∠AMB

Since ∠1 = ∠2, so, ∠DMB = ∠CMA.

Statement 3.

Δ DBM ≅ Δ CAM

Reason 3.

By angle-side-angle rule.

Statement 4.

DB = CA

Reason 4.

Corresponding sides of two congruent triangles. (Answer)
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