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Setler [38]
3 years ago
12

The difference when 7 less than a number is subtracted from twice the number is 12. What is the number?

Mathematics
1 answer:
Softa [21]3 years ago
6 0
2n-(n-7)=12
n+7=12
12-7=5
n=5
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What is the area of the rhombus?
ANEK [815]

Answer:

11cm^2

Step-by-step explanation:

The area of a rhombus is the diagonals multiplied divided by two. 5.5*4/2.  22/2 =11. A=11cm^2

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ERROR ANALYSIS In Exercises 39 and 40, describe and
expeople1 [14]

Answer:

39. r = 13.4

40. m = 12

Step-by-step explanation:

39. Given the equation, -0.8 + r = 12.6, to solve for r, the following are the correct steps to take to arrive at the solution:

-0.8 + r = 12.6 (given)

Add 0.8 to both sides of the equation (addition property of equality)

-0.8 + r + 0.8 = 12.6 + 0.8 (this is where the error occurred.)

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40. The correct steps to take in solving the equation, -\frac{m}{3} = -4 is as follows:

-\frac{m}{3} = -4 (given)

Multiply both sides by 3 (multiplication property of equality)

3*-\frac{m}{3} = 3*(-4)

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6 0
3 years ago
Lamar needs to read 5 novels each month.
Morgarella [4.7K]

Answer:

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5 0
3 years ago
Read 2 more answers
Olivia planted some corn in the back yard and measures its height regularly. Currently the stalks are 77 inches tall. That is 10
Oksanka [162]
70 inches tall then.
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3 years ago
Need help answering this problem
klasskru [66]

Answer:

(a) Local Maximum (x,y) = (0,12)

    Local Minimum (x,y) = (-9,6) (smaller x-value)

    Local Minimum (x,y) = (6,3) (Larger x-value)

(b) Increasing = (-9,0)\cup (6,\infty)

    Decreasing = (\infty,-9)\cup (0,6)

Step-by-step explanation:

(a)

Local Maximum: The function gives maximum value in small neighborhood.

From the given graph it is clear that the maximum value of the function is 12 at x=0. So,

Local Maximum (x,y) = (0,12)

Local Minimum: The function gives minimum value in small neighborhood.

It is clear that the minimum value of the function is -6 and 3 at x=-9 and x=6. So,

Local Minimum (x,y) = (-9,6) (smaller x-value)

Local Minimum (x,y) = (6,3) (Larger x-value)

(b)

The function is increasing on -9<x<0 and after 6.

Increasing = (-9,0)\cup (6,\infty)

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Decreasing = (\infty,-9)\cup (0,6)

8 0
3 years ago
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