All categories

3 years ago

What is the measure of angle A?

Mathematics

2 answers:

In-s [12.5K]3 years ago

8 0

Answer:

A+43+15=180 (angles of a triangle add up to 180)

A+58=180

A=180-58

A=122

satela [25.4K]3 years ago

7 0

Answer:

122

Step-by-step explanation:

180-43-15=122

You might be interested in

Plzzzzzzzzzzz help me

Serjik [45]

I think the answer is 49 cookies

8 0

3 years ago

Need some help with this please

saveliy_v [14]

-0.83 for it’s the lowest number

5 0

3 years ago

What is the value of the function y=1.3x+22 when x=-7?<br> y= -----------

rodikova [14]

$y=1.3x+22$

$y=1.3(-7)+22$

$y = 12.9$

5 0

3 years ago

Read 2 more answers

Please help me! -3a+6(1+6a)=4(8a+1)

den301095 [7]

Answer:

-3a + 6 + 36a = 32a + 4

a = - 2

3 0

3 years ago

Use the definition of a derivative to find f’(x).

tatyana61 [14]

Answer:

f'(x) = $-\frac{9}{x^2}$

Step-by-step explanation:

i) f(x) = 9 / x

ii) f'(x) = $$\lim_{h\to 0} \frac{f(x+h) - f(x)}{h} $ \hspace{0.2cm}$

$= $\lim_{h\to 0} \frac{\frac{9}{x+h} - \frac{9}{x} }{h} = \hspace{0.1cm} $\lim_{h\to 0} \frac{9x - 9(x+h)}{hx(x+h)} $ \hspace{0.1cm} = \hspace{0.1cm}$\lim_{h\to 0} \frac{-9h}{hx(x+h)} = $\lim_{h\to 0} \frac{-h}{x(x+h)} = \frac{-9}{x^2}$$

7 0

3 years ago