Answer:
Hypothesis testing of ' significance of difference between means'
Step-by-step explanation:
Study conducted to tests whether oxygen level prior SAT score improves test score. This can be done through - Hypothesis testing of ' significance of difference between means'.
Where x1 & x2 represent mean values of SAT test score before (or without) & after (or with) oxygen.
Null hypothesis [H0] = x1 = x2 , Alternate Hypothesis [H1] : x1 < x2
50 ≥ 20 + 6x
She can spend less than 50 or 50 dollars exactly. 20 represents the amount for the jeans. The x represents the t-shirts. 6 represents cost per t-shirt.
Use this equation :
al=2(pi)rh
Answer:
5x = 2x + 24 ( opposite angles are equal)
5x - 2x = 24
3x = 24
x = 24/3
x = 8
<h3>X = 8</h3>
5x = 5 × 8 = 40
2x + 24 = 2(8)+24 = 16 +24 = 40
Answer:
<h2><u>350</u> is the right answer.</h2>
