Answer:
A. 30 miles per hour
Step-by-step explanation:
If you divide 5,280 feet by 1,760, you get a quotient of 3. Then you multiply 10 times 3 to get 30 miles.
Answer:
8.428
Step-by-step explanation:
59 divided by 7
Answer:
t = 0, t = - 2
Step-by-step explanation:
Given
- t² - 2t = 0 ← factor out t from each term
t(- t - 2) = 0 ← in standard form
Equate each factor to zero and solve for t
t = 0
- t - 2 = 0 ( add 2 to both sides )
- t = 2 ( multiply both sides by - 1 )
t = - 2, thus
solutions are t= 0, t = - 2
Answer:
Kindly check explanation
Step-by-step explanation:
xbar = 2.6
Sample size, n = 100
s = 0.4
Mean, μ = 4
The test statistic :
(xbar - μ) ÷ s/sqrt(n)
(2.6 - 4) ÷ 0.4/sqrt(25)
1.4 ÷ 0.08
= −17.5
Critical tvalue for 95% confidence interval :
df = n - 1 = 25 - 1 = 24
Tcritical at 0.05/2; df
Tcritical = ±2.064
Since, Tstatistic value does not fall within the Tcritical value ±2.064, we reject the Null
Using the p value from Tstatistic calculator :
P value at t = - 17.5 at 0.05 < 0.000001
Since p value is < 0.05, we reject H0.
Since <span><span>secx</span>=<span>1<span>cosx</span></span></span>,
the first member becomes
<span><span><span><span>1<span>cosx</span></span>−1</span><span>1−<span>cosx</span></span></span>=<span><span><span>1−<span>cosx</span></span><span>cosx</span></span><span>1−<span>cosx</span></span></span>=<span>1<span>cosx</span></span>=<span>secx</span></span>.
