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Lostsunrise [7]
3 years ago
8

Find the missing number so that the equation has infinitely many solution -2x-10=-2x+

Mathematics
2 answers:
Schach [20]3 years ago
7 0

Answer:yoo momma

Step-by-step explanation:

harkovskaia [24]3 years ago
4 0
Answer: -10

For a system of equations to have infinitely many solutions, the equations must have the same numbers (they must be equal to each other). The equation must be exactly copied, so that all points are on the same line. Since the slope is already the same, just match the y-intercept. The missing number would then become -10.

Hope this helps comment below for more questions :)
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Find each measurement indicated. Round your answers to the nearest tenth.
Law Incorporation [45]

Answer:

52.08°

Step-by-step explanation:

Law of sine: \frac{93}{25}=\frac{x}{14}

93*14=25x

1302=25x

52.08=x

5 0
3 years ago
A radio arm saw has a circular cutting blade with a diameter of 10 inches and it spins at 2000rpm if there are 12 cutting teeth
FinnZ [79.3K]

Answer:

12565.11 teeth approximately cut cross the cutting surface per seconds.

Step-by-step explanation:

Since the diameter is 10inches, the circumference of the arm saw is 10π (circumference is πd where d is diameter).

The number of teeth on the cutting blade can be gotten by multiplying the diameter by 12 since we have 12 teeth per inch on the arm saw

Number of teeth on saw = 12 x 10π = 120π.

To get the number of teeth that cross the cutting surface in 2000rpm we multiple it by the total number of teeth in just one rpm.

So we have 2000 x 120π. But since we are asked to find it in revolution per seconds then 2000r/m = 2000r/60s ≈ 33.33

Therefore, we have

33.33 x 120π ≈ 12565.11 teeth

7 0
3 years ago
The cost y (in dollars) to rent a lane at the bowling alley is proportional to the number x of hours that you rent the lane. It
Alika [10]

Answer:

a) y = 9x

b) For every increase of 1 hour the price to rent the lane increases by $9.

c) $27

Step-by-step explanation:

a) Since it costs $18 for 2 hours we can infer that for every 1 hour it costs $9.

So, the equation would look like this:

y = 9x

b) In this context, for every increase of 1 hour the price to rent the lane increases by $9. Like the question gave us, the price for 2 hours cost $18.

c) Plug 3 into the equation:

y = 9(3)

y = 27

Therefore, it costs $27 to rent the lane for 3 hours.

<em>I hope this helps!!</em>

<em>- Kay :)</em>

5 0
3 years ago
Read 2 more answers
Bella saw that 7 out of 11 people brought an umbrella to the beach. There 99 people there. How many of them did not have a beach
Alinara [238K]
Hello!

7 out of 11 people brought an umbrella to the beach

this is a fraction of 7/11

We multiply this by 99 to get how many people brought an umbrella out of 99

7/11 * 99 = 63

You subtract this from 99 to see how many did not have an umbrella

99 - 63 = 36

The answer is 36 people

Hope this helps!
7 0
3 years ago
What is the final amount if 588 is decreased by 3% followed by a 6% increase?
Kaylis [27]

Answer:

604.58

Step-by-step explanation:

because hegarty says its 604.58

8 0
3 years ago
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