Answer:
Step-by-step explanation:
see picture
when doing questions like these it's all about breaking up the shape into digestible parts
5.8 × 10⁻¹ = 0.58
7.4 × 10⁰ = 7.4
0.58 - 7.4 = -6.82
so
(5.8 × 10⁻¹) - (7.4 × 10⁰) = -6.82 × 10⁰
Answer:
7 is a answer
Step-by-step explanation:
2a+3b
2×2+3×1
4+3
7
hope it helps....
Hi!
So f(x) = 2x + 1
Since f(2), that means x = 2
f(2) = 5
Let's do a few more (the ones I don't do, you have to figure out!)
f(t + 1)...
f(t + 1) = 2(t + 1) + 1
f(t + 1) = 2t + 2 + 1
f(t + 1) = 2t + 3
g[f(m+2)]...
g[f(m+2)] = 2m + 5
Hope this helps! DM me if you need to know the rest. :)
Answer:
Z-test is a statistical test used to check weather two means are significant or not for unknown variance and large sample size.
Z = (M - μ) ÷ √(σ² / n)
where, M = Sample Mean = 66.075
μ = Population Mean = 90
σ² = Population Variance = 15
Now, Calculating the value of Z-test:
Z = (66.075 - 90) ÷ √(225 ÷ 40)
Z = -23.925 ÷ 2.37171
Z = -39.06936
The value of Z is -39.06936.
The value of p is < .00001 at 90% confidence level.
If the p-value is less than value of α, We accept the null- hypothesis otherwise reject.
The result is significant at p < .10.
Thus, we accept the null hypothesis.
