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kherson [118]
2 years ago
8

Help me with the problem please!!

Mathematics
1 answer:
adell [148]2 years ago
7 0

Step-by-step explanation:

Scale factor red to blue meaning 42 to 7

42÷7=6

Scale factor is 6

Perimeter of the blue quadrilateral = ?

If perimeter of red = 204

Then we use this following proportion

204 \div 42 = x \div 7

\frac{204}{42}  =  \frac{x}{7}

Then we cross multiply

42x=7×204

42x=1428

x=34

Area of the blue quadrilateral = ?

If area of the red quadrilateral = 2880

Then we use the following proportion

2880 \div 42 = x \div 7

\frac{2880}{42}  =  \frac{x}{7}

Then we cross multiply

42x=2880×7

42x=20160

x=480

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Jessica reads aloud from science website. She comes across the mesurement 0.32 meter. How shouls she read this mesurement aloud?
andreev551 [17]

Answer:

zero point three two meter

Step-by-step explanation:

Given

Measurement = 0.32\ meter

Required

How should it be pronounced

From the measurement above, we can see that it contains a decimal point.

Using the rules of decimal point,

The number before the decimal point will be treated as 1 number and will be pronounced as such.

While numbers after the decimal will be treated as individual digits and will be pronounced individually.

Hence, the pronunciation of 0.32 meter is zero point three two meter

7 0
3 years ago
Read 2 more answers
Anyone know the answer to this??
stepladder [879]

Answer:

Yes i do the answer is C

Step-by-step explanation:

Have a good day:))))

8 0
3 years ago
3 (x-4) = 12x<br><br> What is the value of x.<br> Will give brainliest to first answer
diamong [38]

Answer:

x = -\frac{4}{3}

Step-by-step explanation:

Distributive Property:

3 (x - 4) = 12x

3x - 12 = 12x

Combine like terms and isolate the variable:

3x - 12 = 12x

-12 = 9x

-\frac{4}{3} = x

x = -\frac{4}{3}

4 0
3 years ago
Read 2 more answers
Y-24=-7 i also need to be able to show my work and make sure its correct
german

All you have to do is add 24 to both sides and you will get y.  You add 24 so that it will cancel from one side but be added to the other.  


The answer is y=17.


Hope this helps!

5 0
3 years ago
ACD is a triangle and B is a point on AC. AB = 8cm and BC is 6cm. Angle BCD = 48° and angle BDC = 50°. (a) Find the length of BD
FromTheMoon [43]

Answer:

  • 5.8206 cm
  • 10.528 cm
  • 23.056 cm^2

Step-by-step explanation:

(a) The Law of Sines can be used to find BD.

  BD/sin(48°) = BD/sin(50°)

  BD = (6 cm)(sin(48°)/sin(60°)) ≈ 5.82064 cm

__

(b) We can use the Law of Cosines to find AD.

  AD^2 = AB^2 +BD^2 -2·AB·BD·cos(98°) . . . . . angle ABD = 48°+50°

  AD^2 ≈ 110.841

  AD ≈ √110.841 ≈ 10.5281 . . . cm

__

(c) The area of ∆ABD can be found using the formula ...

  A = ab·sin(θ)/2 . . . . . where a=AB, b=BD, θ = 98°

  A = (8 cm)(5.82064 cm)sin(98°)/2 ≈ 23.0560 cm^2

_____

Angle ABD is the external angle of ∆BCD that is the sum of the remote interior angles BCD and BDC. Hence ∠ABD = 48° +50° = 98°.

5 0
3 years ago
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