The answer is D. 60'. You add both angles together, then subtract them from 180.
60+70=120
180-120=60
2880 / 112 = 25.71 square inches per hr
Answer:
The statement is true
Step-by-step explanation:
we know that
In a Rhombus the diagonals bisect opposite angles.
therefore
diagonal AD bisect angle D and angle A
so
m∠CDA≅m∠BDA
m∠CAD≅m∠BAD
diagonal CB bisect angle C and angle B
so
m∠ACB≅m∠DCB
m∠ABC≅m∠DBC
Answer:
we will fail to reject the null hypothesis and conclude that the return rate is less than 20%.
Step-by-step explanation:
We are given;
Sample size;n = 6970
Success rate;X = 1334/6970 = 0.1914
Now, we want to test the claim that the return rate is less than p = 0.2, hence the null and alternative hypothesis are respectively;
H0: μ < 0.2
Ha: μ ≥ 0.2
The standard deviation formula is;
σ = √(x(1 - x)/n)
σ = √(0.1914(1 - 0.1914)/6970)
σ = 0.004712
Now for the test statistic, formula is;
z = (x - μ)/σ
z = (0.1914 - 0.2)/0.004712
z = -1.825
From the a-distribution table attached, we have a value of 0.03362.
This p-value gotten from the z-table is more than the significance value of 0.01. Thus, we will fail to reject the null hypothesis and conclude that the return rate is less than 20%.
