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2 years ago

If you are going 50 miles per hour, how many feet per second are you traveling?

Mathematics

1 answer:

Karolina [17]2 years ago

5 0

You would travel 73.333334ft per second because 50 miles/hour would make 73.333333repete foot/second.

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$20.600 at 8% for 2 years

balu736 [363]

Answer:

$3.296

Step-by-step explanation:

Simple interest=PRT/100

P=Principal=$20.600

R=rate=8%

T=time=2yrs

=20.600×8/100×2

=$3.296

6 0

2 years ago

Plz help i kind of forgot how to do this its just a review should be easy

Jet001 [13]

This is easy just find out what 5^2 equals which will be 5x5=25 (when dealing with a squared number you will always times it by itself. so if you had 10^2 it would be 100.) so now that we know 5^2 is 25 we then can add the 20 which gets 25+20=45! Hope this helps!

7 0

2 years ago

Two numbers have these properties both numbers are greater than 6 their highst common factor is 6 there lowest common factor is

levacccp [35]

Answer:

The two numbers are 12 and 30

Step-by-step explanation:

Both numbers are greater than 6

Their HCF is 6 and their LCM is 60.

A possible guess of the two numbers will be 6 and 60, which were given in the question, because they satisfy this HCF and LCM values, but the question also tells us that both numbers are greater than 6.

Now, we will obtain the answer using what we have.

Since the HCF is 6, that means that both numbers that we seek are a multiple of 6.

Next, the LCM is 60. We can divide the LCM by the HCF, that is $\frac{60}{6}$ = 10

This tells us that the two numbers are within 6 and (6 × 10).

Next we write out the factors of the 10 that we got by dividing the LCM by the HCF.

Factors of 10 are: 1, 2, 5 and 10.

We multiply each of this by 6 (which is the HCF, recall that we had said that HCF means that the numbers are a multiple of 6), to get the numbers; 6, 12, 30 and 60

Since 6 and 60 are already the given LCM and HCF, the two numbers that we seek are 12 and 30.

4 0

2 years ago

A researcher wants to study the average miles run per day for marathon runners. In testing the hypotheses: H0: μ = 25 miles vs.

masya89 [10]

Answer:

The calculated value |Z| = 1.325 < 1.881 at 0.03 level of significance

Null hypothesis is accepted

Alternative hypothesis is rejected

A researcher wants to study the average miles run per day for marathon runners is 25

Step-by-step explanation:

Step(i):-

Given sample size 'n' = 36

Given mean of the sample x⁻ = 22.8 miles

Given mean of the Population 'μ' = 25

Given standard deviation of the Population 'σ' = 10

Null hypothesis:-H₀: μ = 25

Alternative Hypothesis:H₁:μ ≠ 25

Level of significance = 3 % or 97%

The critical value Z₀.₉₇ = 1.881

Step(ii):-

Test statistic

$Z = \frac{x^{-} - mean}{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{22.8 - 25}{\frac{10}{\sqrt{36} } }$

Z = -1.325

|Z| = |-1.325| = 1.325

The calculated value |Z| = 1.325 < 1.881 at 0.03 level of significance

Null hypothesis is accepted

Alternative hypothesis is rejected

conclusion:-

A researcher wants to study the average miles run per day for marathon runners is 25

6 0

2 years ago

A high rise building has a sink on the fourth floor located 2-feet above the floor. Each floor is 10-feet above the other. Calcu

kap26 [50]

The pressure at a certain height is the pressure at sea level plus the hydrostatic pressure.

P = 80 psi + ΔP
where
ΔP = ρgh
ρ is the density of water equal to 62.4 lbm/ft³
ΔP = (62.4 lbm/ft³)(1 lbf/lbm)(4*10 + 2 ft)(1 ft/12 in)² = 18.2 psi

Thus,
P = 80 + 18.2
P = 98.2 psi

8 0

2 years ago