Noah was doing some homework and answered the following questions: 2.7⋅-2.5=-6.75
-34⋅-57=-1528
5.5⋅-35=3.3
Do you agree with his answers? If you disagree, explain your reasoning.

Addition and subtraction of numbers has it's own technique

Noah is correct about the first question and wrong with the other two questions

So,

= - 6.75

correct

= -1528

Wrong

-34 × -57 = 1,938

wrong

5.5 × - 35 = - 192.5

Therefore, Noah is correct about the first question and wrong with the other two questions

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only the first one is correct.

There are 2 mistakes in the second one. The Multiplication is wrong and the sign is wrong. Negative × Negative =Positive

-34× -57 = 1938

The third is also incorrect. 5.5 × -35 = -192.5 not even close!

Step-by-step explanation: It is not easy to see the dots used to mean multiply. But that's what they do.

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).