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2 years ago

We can measure. waves with instruments

Mathematics

1 answer:

lana [24]2 years ago

8 0

Answer:

Yes, we can measure waves with instruments. We can also use math.

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Help im being timed

Oksanka [162]

Answer:

he made the error in step 2

Step-by-step explanation:

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2 years ago

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Find the measure of the angles(S) Please help

kolbaska11 [484]

Answer:

10°

Step-by-step explanation:

the sum of interior angles of triangle is 180°

so. 8x+x+90°=180°

9x=90°

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2 years ago

The value of a house has increased by $4,200 in the past year. By what percent has the value increased if the value last year wa

IgorC [24]

Answer:

The value has increased by 8 percent.

Step-by-step explanation:

Given:

The value of a house has increased by $4,200 in the past year.

The value last year was $52,500.

Now, to find the percent increased.

Value of house = $52,500.

Value of house last year increased by = $4200.

So, to get the percent increased:

$\frac{Value\ of\ house\ last\ year\ increased\ by} {Value\ of\ house}\times 100.$

$=\frac{4200}{52500} \times 100$

$=0.08\times 100$

$=8\ percent.$

Therefore, the value has increased by 8 percent.

6 0

2 years ago

One month, a homeowner used 150 units of gas and 520 units of electric for a total cost of $84.20. The next month, 210 units of

Tom [10]

Answer:

gas = $0.23, electricity = $0.10

Step-by-step explanation:

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2 years ago

Alice, Benjamin, and Carol each try independently to win a carnival game. If their individual probabilities for success are 1/5,

kicyunya [14]

Answer:

E. 7/40

Step-by-step explanation:

The following probabilities are given:

P (Alice Wins) = 1/5

P (Benj. Wins) = 3/8

P (Carol Wins) = 2/7

We can deduce the probabilities for losses:

P (Alice Loses) = 1 - P (Alice Wins) = 1 - 1/5 =4/5

P (Benj. Loses) = 1 - P (Benj. Wins) = 1 - 3/8 = 5/8

P (Carol Loses) = 1 - P (Carol Wins) = 1 - 2/7 =5/7

The possible outcomes that two players win and one player loses are as follows:

Alice Wins, Benj Wins, Carol Loses

Alice Loses, Benj Wins, Carol Wins

Alice Wins, Benj Loses, Carol Wins

We can compute the probabilities of each of the 3 outcomes above:

P(Alice Wins, Benj Wins, Carol Loses) = (1/5) x (3/8) x (5/7) = 3/56

Alice Loses, Benj Wins, Carol Wins = (4/5) x (3/8) x (2/7) = 3/35

Alice Wins, Benj Loses, Carol Wins = (1/5) x (5/8) x (2/7) = 2/56

P ( 2 wins and 1 loss)

= 3/56 + 3/35 + 2/56

= 343 / 1960

= 7/40

7 0

2 years ago

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