MATHEMATICS MIDDLE SCHOOL

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Which equation is true for any value of y?
A. 4y^2+2=(4y*4y)+2
B. 4y^2+2=(4y+y)+2
C. 4y^2+2=4(y+y)+2
D. 4y^2+2= 4(y×y)+2

Answers

Answer 1
Answer: 4y^2+2=(4y\cdot4y)+2\n4y^2+2=16y^2+2 \leftarrow \text{not identity}\n\n4y^2+2=(4y+y)+2\n4y^2+2=5y+2 \leftarrow \text{not identity}\n\n4y^2+2=4(y+y)+2\n4y^2+2=8y+2 \leftarrow \text{not identity}\n\n4y^2+2=4(y\cdot y)+2\n4y^2+2=4y^2+2 \leftarrow \text{identity}

So it's D.

Related Questions

A lil help would be nice right now
The probability of randomly selecting a green marble from a bag of 20 marbles is 1/2 . Which of the following describes the likelihood of selecting a green marble?A.likelyB.unlikelyC.neither unlikely nor likely
Kevin has $1,427 in a savings account his brother Haley has saved in the mouth with a 4 that is 1/10 the value of the 4 in Kevin's savings account. how much could Harley have In his savings account?
Which angle has its terminal side in the third quadrant?
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A fence is shown on a blueprint and has a sides of leg the 17cm,18cm,18cm and 19cm.If themail scale on the blueprintis2cm:7cm,what is the total length of the fence?please tell me how did you get it.

Answers

ok so 2cm on the blueprint is actually 7cm in real life
2:7=1:3.5
for every cm on the map, it is 3.5 times that in real life

so total legnths
17 times 3.5+18 times 3.5+18 times 3.5+19 times 3.5=
59.5+63+63+66.5=
252

answer is 252cm
The answer is 252 cm. You divide each number by two and then multiply what ever that is by 7. ( since the ratio is 2:7)

What is the slope of the line through the points (9,2) (9,2) and (4,10)

Answers

Answer:

8/-5

Step-by-step explanation:

Slope= y2-y1/x2-x1

(10-2)/(4-9)

8/-5

99 POINTS PLZ HELP2. Consider the function f(x) = –2 · 2x + 1.
(a) Complete the table of values.
x –2 –1 0 1 2
f(x)

(b) Use the points in the table to graph the function.
(c) Describe the end behavior of the function.
Answer:



3. Ronnie is building a tower out of blocks. There are 38 blocks in the bottom row. Each row above the bottom row has 3 fewer blocks than the row below it.
(a) Write an iterative rule to model the sequence formed by the number of blocks in each row.
(b) The top row has 5 blocks. Use the rule to determine how many rows are in the tower. Show your work.
Answer:

Answers

38-(3*11)=5

The 11 is how many rows there are. I think that's right, not sure

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Answers

The answer to this question is D
I think the answer is d I did the math but I’m not shure

The formula f=9/5c + 32 is used to convert Celsius to Fahrenheit temperature.If the temperature is 20°C, what is it in Fahrenheit?

28.8°F
43.1°F
68.0°F
93.6°F

Answers

For the answer to the question above asking If the temperature is 20°C, what is it in FahrenheitF=9/5C +32?

Substitute for C = 20
F = 9*20 / 5 + 32
F = 180 / 5 + 32
F = 36 + 32
F = 68
I hope my answer helped you. Feel free to ask more questions. Have a nice day!

Answer:

68.0 is the answer hope this helpsss


Step-by-step explanation:

Eddie has saved up $45 to purchase a new camera from the local store. The sales tax in his county is 7% of the sticker price. Write an equation and solve it to determine the value of the highest priced camera Eddie can purchase with his $45, including the sales tax. Round your answer to the nearest penny.x − 0.07x = 45; $48.39
0.7x = 45; x = $64.29
7x = 45; x = $6.43
x + 0.07x = 45; x = $42.06

Answers

Let the price (before tax) be x. The tax is 7% of x, so it is 0.07x. The price plus the tax add up to $45. x + 0.07x = 45
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