The measure of angle 3 is 42°. What is the measure of angle 1 in degrees?

Mathematics

1 answer:

netineya [11]2 years ago

7 0

Answer:

measure of angle 1

= 180° - 90° - 42°

= 48°

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Which function is increasing?? :)

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Answer:

$\large\boxed{B.\ f(x)=4^x}$

Step-by-step explanation:

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$A.\ f(x)=\left(\dfrac{1}{4}\right)^x\to a=\dfrac{1}{4}\in(0,\ 1)\to\text{decreasing}\\\\B.\ f(x)=4^x\to a=4\in(1,\ \infty)\to\text{increasing}\\\\C.\ f(x)=(0.4)^x\to a=0.4\in(0,\ 1)\to\text{decreasing}\\\\D.\ f(x)=\left(\dfrac{1}{2}\right)^x\to a=\dfrac{1}{2}\in(0,\ 1)\to\text{decreasing}$