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NARA [144]
3 years ago
10

Simplify the following expression. 4(20+12) divided by (4-3)

Mathematics
2 answers:
lara31 [8.8K]3 years ago
7 0
4(20+12)/(4-3) = 4(32)/1 = 128 
Use order of operations (PEMDAS) Please Excuse My Dear Aunt Sally, and solve for parantheses, then multiply parentheses and then divide by 1. 
nekit [7.7K]3 years ago
7 0

Answer:

The answer to the equation is 128.

Step-by-step explanation:

Simplify the following expression:

4(20+12) divided by (4-3)

4(20+12) = 4(32) = 128

(4-3) = 1

So, \frac{4(20+12)}{4-3}

= \frac{128}{1}=128

So, the answer to the equation is 128.

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The perimeter of a rectangle is 20 inches.The length is 2 inches less than twice the width.
SSSSS [86.1K]

Answer:

width = 6

length = 4

Step-by-step explanation:

perimeter = 2L + 2W

L = W - 2

plug in perimeter:

20 = 2L + 2W

you know the length is 2 less than the width

plug in (w - 2) for L:

20 = 2(w - 2) + 2w

solve for w:

20 = 2w - 4 + 2w

20 = 4w - 4

4w = 24

w = 6

now plug in 6 for w in either equation, whichever is easier to solve:

L = 6 - 2

L = 4

width = 6

length = 4

6 0
4 years ago
Find the derivative of 3e^y+x=y
Sindrei [870]

You have the following function:

y=3e^y+x

Derivate implictly the previous expression, as follow:

y^{\prime}=3e^yy^{\prime}+1

Where you have used that:

(e^y)^{\prime}=e^yy^{\prime}

Then, the implicit derivative of the given expression is:

y^{\prime}=3e^yy^{\prime}+1

Next, solve for y' as follow:

\begin{gathered} y^{\prime}-3e^yy^{\prime}=1 \\ (1-3e^y)y^{\prime}=1 \\ y^{\prime}=\frac{1}{1-3e^y} \end{gathered}

4 0
1 year ago
a quadrilateral has angles measuring 105 degrees, 80 degrees, and 45 degrees what is the measure of the 4th angle
Bond [772]

Answer: 130 degrees

Step-by-step explanation:

105+80+45+x=360

230+x=360

-230 both sides

X=130 degrees

6 0
3 years ago
Solve for x<br> Please.
Sonja [21]

Answer:

B

Step-by-step explanation:

Since the triangle is right use the tangent ratio to find x

tan64° = \frac{opposite}{adjacent} = \frac{x}{11}

Multiply both sides by 11

x = 11 × tan64° = 22.55 → B

4 0
3 years ago
Area &amp; perimeter of rectangles word problems
nordsb [41]

Answer:

  A.  6 m by 6 m

Step-by-step explanation:

You can try the different choices to see which has the largest area. Of course, the area is the product of the dimensions:

  6 m × 6 m = 36 m² . . . . largest area

  10 m × 2 m = 20 m²

  8 m × 4 m = 32 m²

__

The largest area is that of a square, 6 m by 6 m.   (choice A)

3 0
3 years ago
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