All categories

3 years ago

HELP HELP MATH IS DIFFICULT

Mathematics

1 answer:

NISA [10]3 years ago

3 0

Answer:

Belinda is correct

Step-by-step explanation:

A is 115°

180-45 = 135

135÷ 2=67.5

100-67.5 = 32.5

32.5*2 =65

180-65= 115°

You might be interested in

Is the relation shown in the table a function? (Look at the photo!)

myrzilka [38]

I’m pretty sure it is a function.

6 0

3 years ago

What is the sum of the first 5 terms of geometric series with a1=10 and r=1/5

steposvetlana [31]

$\bf \qquad \qquad \textit{sum of a finite geometric sequence}
\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
a_1=10\\
n=5\\
r=\frac{1}{5}
\end{cases}$

$\bf S_5=10\left( \cfrac{1-\left( \frac{1}{5} \right)^5}{1-\frac{1}{5}} \right)\implies S_5=10\left( \cfrac{1-\frac{1}{3125}}{\frac{4}{5}} \right)
\\\\\\
S_5=10\left( \cfrac{\frac{3124}{3125}}{\frac{4}{5}} \right)\implies S_5=10\cdot \cfrac{781}{625}\implies S_5=\cfrac{1562}{125}$

7 0

3 years ago

Y = 3/2x + 15, provide the x-y coordinates of the y-intercept and the x-intercept. Show your work.

Ray Of Light [21]

Answer:

The y-intercept is 15, which means the ordered pair is (0, 15), and the x-intercept is -10, which means the ordered pair is (-10, 0)

Step-by-step explanation:

To find the y-intercept it is quite easy. Since this is written in slope-intercept form, we can see the y intercept as the constant at the end of the equation.

The x-intercept can be found by inputting 0 for y and then solving for x.

y = 3/2x + 15

0 = 3/2x + 15

-15 = 3/2x

-10 = x

5 0

3 years ago

The temperature at noon was 88°f. By 4 p.M., the temperature was 27°f. Determine the constant rate of change of the temperature.

yawa3891 [41]

i think it would be 2 degrees every hour for 10 to 11 hours i think it would be 2 degrees

8 0

3 years ago

X2y, for x = 3 and y = 6

DENIUS [597]

Answer:

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers