Answer:
A) 87 + x > 90
Step-by-step explanation:
Since multiplicative inverse is the same thing as reciprocal, the multiplicative inverse is just the denominator and the numerator flipped. So the multiplicative inverse of -7/9 is 9/-7. Hope this helps! If you ever need any more help in math you could always DM me.
Answer:
The value of x= 7 and that of Angle A= 157°
Step-by-step explanation:
(x+16)° = (4x-5)° [Vertically opposite angles]
3x= 21
x= 7
Now, A + (4x-5)° = 180° [Linear pair]
A + [4(7)-5] = 180°
A + 23 = 180°
A = 180° - 23
A = 157°
Hope it helps you
Answer:
(c) H0 should be rejected
Step-by-step explanation:
Null hypothesis (H0): population mean is equal to 5
Alternate hypothesis (Ha): population mean is greater than 5
Z = (sample mean - population mean) ÷ (sd/√n)
sample mean = 5.3, population mean = 5, sd = 1, n = 500
Z = (5.3 - 5) ÷ (1/√500) = 0.3 ÷ 0.045 = 6.67
Using the normal distribution table, for a one tailed test at 0.01 significance level, the critical value is 2.326
Conclusion:
Since 6.67 is greater than 2.326, reject the null hypothesis (H0)
Answer:
y= -7
Step-by-step explanation:
Substitute y for x in the equation since the rule is true.
