Answer:
.
Step-by-step explanation:
5x + 3y = 26 (times 6) 30x + 18y = 156
6x + 7y = 21 (times 5) 30x + 35y = 105
.
30x + 18y = 156
<u>30x + 35y = 105 </u> <u> </u>
-17y = 51
y = -3
.
Substitute the value of y to one of equations
6x + 7y = 21
6x + 7(-3) = 21
6x - 21 = 21
6x = 21 + 21
6x = 42
x = 7
The answer is A
i think so but i might be wrong
sorry if i am.
Answer:
The answer to your question is: ( - 24 / 29, ∞ )
Step-by-step explanation:
6x + 3 < 8 (8x + 6) + 3
6x + 3 < 64x + 48 + 3
6x + 3 < 64x + 51
6x - 64x < 51 - 3
- 58 x < 48
x > - 48 / 58
x > - 24 / 29
( - 24 / 29, ∞ )
Answer:
The claim made by the researcher lacks the validity on basis of reasons as indicated in the explanation.
Step-by-step explanation:
The claim made by the researcher is not valid on basis of following reasons:
- Interacting variables are not mapped accurately. The additional variables as the health status of the volunteers, eating and fitness habits are not considered in the consideration. This results in a in complete validation.
- The placebo effect is not catered accordingly. As the half of the volunteers are taking nothing, this is not the direct influence of the placebo and thus double-blinded testing for placebo effect is to be ensured in future experiments.
- The environmental effects are not considered as the effect under study is dependent on the environmental effects, thus the claim is biased and the generalization is not valid.
Answer:
5 i think
Step-by-step explanation:
im doing the test ill come back and tell you if its right
