Evaluate the following expression if x=4 28x - 9 (2x+ 6)​

Answer: 18.5

Step-by-step explanation: Steps are down.

1. Move the decimal point all the way to the right.

2. Put a decimal point in the quotient exactly as the one in the dividend.

3. Divide the tens column by the divisor.

4. Multiply the divisor by the quotient.

5. Subtract the product by the divisor.

6. Bring down what's left, then repeat.

Answer:

$33.25

Step-by-step explanation:

Answer:

She bought 6 pounds of coffee.

Step-by-step explanation:

80-36.38=43.62

so she spent $43.62 on coffee

43.62 divided by 7.27 = 6

Answer:

4.5

Step-by-step explanation:

Answer:

Step-by-step explanation:

You have to use the tangent.

Tan(y) = opposite / adjacent

tan(10) = x / 500

tan(10) = 0.1763

0.1763 = x / 500

500 * 0.1763 = x

x = 88.1635

x = 88.2

Answer:

53

Step-by-step explanation:

24+30= 54 which is about 53, so the answer would be 53.

Answer:

53

Step-by-step explanation:

The sin of a = opposite over hypotenuse.

sin(a)=24/30

sin(a)=0.8

a=The inverse sin of 0.8

a=53.13

Answer:

B

Step-by-step explanation:

all you need to do for this is multiply the numerator by the 3.

3/4 times 3 = 9/4-  thats not more than 3

3/2 times 3 = 9/2 - thats more than 3  

1/12 times 3 = 3/12-  thats  not more than 3

9/10 times 3 = 27/10 thats  not more than 3

could you give me brainliest I need to complete this level

Answer:

182/3

60.67

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Answer:

Exact Form:

182/3

Decimal Form:

60. 6

Mixed Number Form:

60 2/3

Answer:

this doesn't make sense

Step-by-step explanation:

9514 1404 393

Answer:

  72.6 cm

Step-by-step explanation:

It is the perimeter of the overall rectangle plus twice the depth of the notch.*

  P = 2(L+W) +2d

  P = 2(16 cm + 13 cm + 7.3 cm) = 2(36.3 cm)

  P = 72.6 cm

The perimeter of the shape is 72.6 cm.

_____

* You may be able to visualize this if you imagine the bottom (top) of the notch translated out (down) to the edge of the rectangle. That translation does not affect the length of the line segment, but helps convince you that only the two legs of the notch are added to the perimeter of the rectangle.

Answer:

Total cost= $5,425

Step-by-step explanation:

Giving the following information:

Month Machine _Hours Amount

January 200 $2,800

February 350 3,000

March 450 4,000

April 500 5,000

May 600 5,200

June 580 5,800

First, we need to calculate the fixed and variable costs. To do it, we will use the high-low method:

Variable cost per unit= (Highest activity cost - Lowest activity cost)/ (Highest activity units - Lowest activity units)

Variable cost per unit= (5,800 - 2,800) / (600 - 200)

Variable cost per unit= $7.5 per hour

Fixed costs= Highest activity cost - (Variable cost per unit * HAU)

Fixed costs= 5,800 - (7.5*600)

Fixed costs= $1,300

Fixed costs= LAC - (Variable cost per unit* LAU)

Fixed costs= 2,800 - (7.5*200)

Fixed costs= $1,300

Now, we can determine the total cost for 550 hours:

Total cost= 1,300 + 7.5*550

Total cost= $5,425

9514 1404 393

Answer:

  BC ≈ 9.6 mi

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relationships between sides and angles in a right triangle.

  Tan = Opposite/Adjacent

  tan(58°) = BC/(6 mi)

  BC = (6 mi)tan(58°)

  BC ≈ 9.6 mi

Answer:

2n-5

Step by step Explanation:

You must put 2 in front of "n" to represent the multiplication of the 2 numbers. Then put a subtraction sign and five the show the number is decreased by 5.

Hope this helps!

Answer:

creo que puede ser 24.8 siiiiiiii eso puede ser

Answer:

5 mph

Step-by-step explanation:

Answer: We can use equations to represent the measures of the angles described above. One equation might tell us the sum of the angles of the triangle. For example,

X°+145°=180° because there supplementary angles.

X°=35° because 180-145=35°.

Answer:

ovary

Step-by-step explanation:

Answer:

k is equal to -12

Step-by-step explanation:

9-8k=105

minus 9 from both sides of the equations:

-8k=96

divide both sides by -8:

k=-12

Answer:

0.2690 kg

Step-by-step explanation:

Given that:

For cutting a 4.5 kg block of cheese; the standard deviation:

[tex]S_x = 0.1 \ kg[/tex]

For a large no of blocks,  at 95% confidence level;

Using the t table; where the degree of freedom is infinity or > 30

t-distribution (t) = 2

∴

[tex]P_x = tS_x[/tex]

[tex]P_x = 2 \times 0.1[/tex]

[tex]P_x = 0.2 \ kg[/tex]

The system uncertainty as a result of the accuracy [tex]B_x[/tex] is:

[tex]B_x = 1.5\% \ of \ reading[/tex]

[tex]B_x = (\dfrac{1.5}{100})(12 kg)[/tex]

[tex]B_x = 0.18 \ kg[/tex]

The total uncertainty  for a single experiment with a 95% confidence interval will be:

[tex]w_s = ( B_x^2 + P_x^2)^{\frac{1}{2}[/tex]

[tex]w_s = (0.18^2 + 0.2^2)^{\frac{1}{2}[/tex]

[tex]\mathbf{w_s = 0.2690 \ kg}[/tex]

Answer:

then they become even

Answer:

30%

Step-by-step explanation:

Answer:

3 tenth or 3/10 or 30%

Step-by-step explanation:

all works :)

https://socratic.org/questions/how-do-you-solve-sin-x-pi-4-sin-x-pi-4-1-over-the-interval-0-2pi

Answer:

6.09

Step-by-step explanation:

3.59 + 5 - 2.5 = 6.09

hope this helps...

Answer:

x = 6

Step-by-step explanation:

Instructions?  I'm assuming you were asked to "solve for x."

To eliminate fractions, multiply both sides by 4.  This results in x = 6.