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BaLLatris [955]
3 years ago
8

−2⋅f(−6)−7⋅g(−7)= what is the answerrr

Mathematics
1 answer:
Mrrafil [7]3 years ago
4 0

Answer:

idk know dude I'm sorry

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Use the equation below to find v, if u = 18, a=6, and t =4. V=u+at​
Anastaziya [24]

Answer:42

Step-by-step explanation:

V= 18 + 6(4)

V= 18 + 24

V= 42

7 0
3 years ago
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Lauren has 4 3/8 cups of flour.Each batch of her pancake batter needs 1 1/4 cups of flour.How many batches of her batter can she
GuDViN [60]
She can make 3 batches. 3 batches will take 3 3/4 cups. If she made 4 it would take 5 cups
5 0
3 years ago
An airplane travels 3600 miles to Spain from an airport in New Jersey this trip takes 7.5 hours how far does the plane travel in
Vanyuwa [196]

Answer: The answer is 480

Step-by-step explanation: I got this because i divided 3600 by 7.5 and got 480 so im guessing the plane travels 480 miles in a hour.

8 0
3 years ago
An analyst from an energy research institute in California wishes to precisely estimate a 99% confidence interval of the average
Lena [83]

Answer:

190

Step-by-step explanation:

Data provided in the question:

Confidence level = 99%

Therefore,

α = 1% = 0.01

[ from standard normal table ]

z-value for z_{\frac{\alpha}{2}}= z_{\frac{0.01}{2}}= = 2.58

Margin of error, E = $0.06

Standard deviation, σ = $0.32

Now,

n = (\frac{z_{0.005}\sigma}{E})^2

Here,

n is the sample size (or the minimum number of gas stations  )

on substituting the respective values, we get

= (\frac{z_{0.005}\sigma}{E})^2

= (\frac{2.58\times0.32}{0.06})^2

= 13.76²

= 189.3376 ≈ 190

Hence,

minimum number of gas stations that she should include in her sample is 190

5 0
3 years ago
A car can drive 30 miles in 25 minutes. How many miles could it drive in 75 minutes?
Elena L [17]
90 miles

75/25= 3
so 3*30 = 90
6 0
3 years ago
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