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2 years ago

4/5[x+8}=12 what does x egual

Mathematics

2 answers:

astraxan [27]2 years ago

7 0

Answer:

X= 7

Step-by-step explanation:

makvit [3.9K]2 years ago

6 0

Answer:

Step-by-step explanation:

7+8=15

5×3=15

4/5×15=12

if that makes sense

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Find the value of x. If necessary, you may learn what the markings on a figure indicate. 74°

marissa [1.9K]

Answer:

x = 61

Step-by-step explanation:

Left hand triangle containing 1 angle of 74

Label the other angle opposite the marked side also as 74

Find the third angle. Call it y.

y + 74 + 74 = 180 Combine like terms

y + 148 = 180 Subtract 148 from both sides.

y = 180 - 148

y = 32

=============

Now work with the triangle on the right.

label the angle making up the right angle = z

32 + z = 90 These two angles are complementary = 90

32 - 32 + z = 90 - 32 Subtract 32 from both sides

z = 58 Use 58 wherever you see z

x + x + z = 180 Substitute

2x + 58 = 180 Subtract 58 from both sides

2x = 122 Divide by 2

x = 61

5 0

3 years ago

Read 2 more answers

Find the point of diminishing returns (x comma y )for the function R(x), where R(x) represents revenue (in thousands of doll

riadik2000 [5.3K]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The point of diminishing returns (x , y ) is (11, 21462)

Step-by-step explanation:

From the question we are told that

The function is $R(x) = 10,000 -x^3 - 33x^2 + 800x , \ \ 0 \le x \le 20$

Here R(x) represents revenue (in thousands of dollars) and x represents the amount spent on advertising (in thousands of dollars).

Now differentiating R(x) we have

$R'(x) = -3x^2 +66x + 800$

Finding the second derivative of R(x)

$R''(x) = -6x +66$

at inflection point $R''(x) = 0$

So $-6x +66 = 0$

=> $x= 11$

substituting value of x into R(x)

$R(x) = 10,000 -(11)^3 - 33(11)^2 + 800(11) ,$

$R(x) = 21462$

Now the point of diminishing returns (x , y ) i.e (x , R(x) ) is

(11, 21462)

4 0

3 years ago

Help answer pls!!!!!!!!!!!!!!!! yes

sasho [114]

Answer: D!

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

In a school there are two sections - section A and section B or class X . There are 32 students in section A and 36 students in

jekas [21]

Just add 32 + 33 = 65. 65 would be the minimum amount.

7 0

3 years ago

1. Evaluate

Dmitry_Shevchenko [17]

1. Evaluate (2-2^3)^3-4x(-4)

$(2-2 x^{3} )^{3} -4x(-4)=8-8x^{9} -16x$ 
 $=8(1-x^{9} -2x)$ 

2. Compute
-453+(-5.34)=-453-5.34
=-458.34
-56+27.4=-28.6

3. Use <, >, or =

9 > -8
-12 < -3
-4 > -7

6 0

3 years ago