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Serjik [45]
4 years ago
7

Please help me with my math homework​

Mathematics
1 answer:
zheka24 [161]4 years ago
8 0

Answer

x=45

Explanation

2x + 45 + x = 180

3x + 45 = 180

     -45      -45

3x = 135

/3       /3

x=45

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I need help please and thank you
JulijaS [17]

Answer:

50

Step-by-step explanation:

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196+2304=2500

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3 years ago
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Please help me urgently! 50 points giving brainliest.
Alisiya [41]

The number of significant figures in the numbers are

  • 100 cm = 1 significant digit
  • 0.006700 cm = 2 significant digits
  • 450. cm = 3 significant digits

<h3>How to determine the number of significant figures in the following numbers?</h3>

As a general rule, the zeros before and after the non-zero figures are not significant.

Using the above rule, we have:

  • 100 cm = 1 significant digit
  • 0.006700 cm = 2 significant digits
  • 450. cm = 3 significant digits

<h3>How to round the following numbers to the correct number of significant figures</h3>

Using the above rule in (a), we have:

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  • 0.19851m to show 2 sig figs = 0.2 m
  • 0.0057034L to show 3 sig figs = 0.005703 L

<h3>How to report the following answers with correct significant figures</h3>

We have:

(12.93cm) x (2.34cm) x (8cm) = 242.05 cm^3 because 12.93 has 4 significant figures

67.0m / 2.18s = 30.7 m/s because 2.18 has 3 significant figures

<h3>How to convert the following metric to metric</h3>

450mL = 0.45 L

because 1 mL = 0.001 L

2.3 dm = 0.00023 km

because 1 dm = 0.0001 km

0.120cg = 1.2 mg

because 1 cg = 10 mg

6700L = 670000 cL

because 1 L = 100 cL

<h3>How to convert the following metric</h3>

a. 2.34miles = 3.76 km (1mile = 1.61km) -- given

b. 5.3ft = 161.544 cm(2.54cm = 1 in)

Because 1 ft = 30.48 cm

Read more about significant figures at:

brainly.com/question/24491627

#SPJ1

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2 years ago
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Answer:

it is c

Step-by-step explanation:

brainly plz

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4 years ago
Mark has a window that is 67 square feet. The window is in the shape of a square, which of the following expresses the length of
Scorpion4ik [409]

Answer:

\sqrt{67}\:\mathrm{feet}

Step-by-step explanation:

The area of a square with side length s is given by s^2.

Therefore,

s^2=67,\\s=\fbox{$\sqrt{67}$}.

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PSYCHO15rus [73]

Answer: You need to put the same shape as it shows there on the top.

Step-by-step explanation: I hope this helped you.

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