Answer: 60 degrees
Step-by-step explanation:
This triangle is a 30-60-90 right triangle because the hypotenuse is double the shortest side. Because this is a 30-60-90 right triangle, Angle C, which opens up to the x√3 side, is 60 degrees.
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Answer:
see explanation
Step-by-step explanation:
To find the roots factor the left side
x³ + 7x² + 12x = 0 ← factor out x from each term
x(x² + 7x + 12) = 0
x(x + 3)(x + 4) = 0
Equate each factor to zero and solve for x
x = 0
x + 3 = 0 ⇒ x = - 3
x + 4 = 0 ⇒ x = - 4
Roots are x = - 4, x = - 3, x = 0
Answer: DM, M, CM
Step-by-step explanation:
Answer:
B is the right answer and if you add
Answer: t= 0.866
Step-by-step explanation:
Formula to find t-test statistic :
where, n= sample size
= sample mean
= Population mean
=sample standard deviation
Given : Null hypothesis : H0:μ=8.000 cm
Alternative hypothesis : H1:μ<8.000 cm , since alternative hypothesis is one-tailed , so the test is one-tailed test.
Then , the t‑statistic for this test will be :-
Hence, the value of the t‑statistic for this test : t= 0.866