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aniked [119]
3 years ago
8

I need help with this problem

Mathematics
1 answer:
krek1111 [17]3 years ago
7 0
Use the law of sine
note that:

\frac{sin(\alpha)}{a}= \frac{sin(\beta)}{b}

sin(42)/4.8=sin(80)/PQ
PQ=4.8sin(80)/sin(42)
PQ≈7.1
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Find the diameter of the circle with the given circumference. Use 3.14 for pi. C=29 cm The diameter is about ____ cm. ​(Round to
dezoksy [38]

Answer:

= 9.2 cm

Step-by-step explanation:

D = C ÷ π

= 29cm ÷ 3.14

= 9.2356

= 9.2 cm

4 0
3 years ago
The average speed of one team in a relay race is about 10 miles per hour. What is the speed in feet per second?
ki77a [65]

10 miles per second in feet per second is 14.67 feet per second

Step-by-step explanation:

The average speed of one team in a relay race = 10 miles per hour.

We need to find the speed in feet per second.

  • The conversion rule is:

             1 mile per hour = 1.467 feet per second

So, Speed in feet per second is:

 1 mile per hour = 1.467 feet per second

10 miles per hour = 10*1.467 feet per second

                             = 14.67 feet per second

So, 10 miles per second in feet per second is 14.67 feet per second

Keywords: Conversion of units

Learn more about Conversion of units at:

  • brainly.com/question/10940255
  • brainly.com/question/13005855
  • brainly.com/question/6436086

#learnwithBrainly

5 0
3 years ago
A number c multiplied by -2 is no less than - 3. Write this word sentence as an inequality.
antiseptic1488 [7]

Answer: -3 ≤  -2c

Step-by-step explanation:

First multiply C by -2, and make sure it's not less than -3. It can be -3, but it can't be less than.

3 0
3 years ago
Which of these equations is for a line perpendicular to y-3=5(x-2)?
olasank [31]

Answer:

C

Step-by-step explanation:

y-3=5(x-2)  (rearrange this to be in slope- intercept from) (add 3 to both sides)

y = 5(x-2) + 3   (distribute parentheses)

y = x(5) - 2(5) + 3

y = 5x -10 + 3

y = 5x - 7

recall that for a line with gradient m, the gradient of the perpendicular line will be - (1/m)

hence in our case, our gradient of the original line is 5, hence the gradient of the perpendicular line is -1/5

From the choices, the only one that is consistent with this is C

i.e choice C:

5y + x = 25

5y = -x + 25

y = -(1/5) x + 5   ===> gradient of -1/5

6 0
2 years ago
A Spaceship traveled 93 billion miles. in scientific notation that is how many miles?
Alex
<span>93 * 10^9 = 9.3 * 10^10

</span>
4 0
3 years ago
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