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oksano4ka [1.4K]
3 years ago
9

WORTH 99 POINTS IF YOU ANSWER ALL!

Mathematics
2 answers:
Daniel [21]3 years ago
8 0
1) C. <u>19.4
</u>1/3(3)^3 + 5.2(2)
1/3(27) + 10.4
9 + 10.4
= 19.4

2) C. <u>6
</u>9 - (1/2)^4 * 48
9 - 0.0625 * 48
9 - 3
= 6

3) A. <u>2 times y divided by 7</u>
4) C. <u>5p - 4</u>
5) C. <u>Step 2; 4(2) + 4(4x)

</u>Hope this helps!<u>
</u>
malfutka [58]3 years ago
7 0
What is the value of fraction 1 over 3x3 + 5.2y when x = 3 and y = 2?

C. 19.4

just substitude the value into the equation given

Question 6(Multiple Choice Worth 1 points)
(06.01 MC)

What is the value of the expression 9 − (fraction 1 over 2)4 ⋅ 48?

D. 9

the answer is 8.9375,but the answer provided in whole number.You just need to round off to tge nearest whole number.

Question 7(Multiple Choice Worth 1 points)
(06.02 LC)

Which statement best describes the expression 2y ÷ 7?

A. 2 times y divided by 7

B,C and D are obviously wrong.It doesn't related on the equation given.A is the right answer

Question 8(Multiple Choice Worth 1 points)
(06.02 MC)

Which of these is the algebraic expression for "4 less than the product of 5 and some number?"

B. 4 − 5p

A,C and D are WRONG. it doesn't mention that 4 is the product of any unknown number.B is the right answer

Question 9(Multiple Choice Worth 1 points)
(06.06 MC)

The work of a student to find the dimensions of a rectangle of area 8 + 16x and width 4 is shown below:

A. Step 1: 8 + 16x
B. Step 2: 4(4) + 4(12x)
C. Step 3: 4(4 + 12x)
D. Step 4: Dimensions of the rectangle are 4 and 4 + 12x

In which step did the student first make an error and what is the correct step?

C. Step 2; 4(2) + 4(4x)

The first error is at the step 2.It doesn't show the right solution.4(4x),not 4(12x).That is obviously wrong.How could 16 can be 12 even the expression not multiply by any number yet ! that obviously WRONG. C is the right answer




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