3 years ago

HELP PLEASE I WILL GIVE 50 POINTS AND MARK BRAINLESS TO BEST ANSWER

Mathematics

2 answers:

dedylja [7]3 years ago

7 0

Answer:

The answer is 15

Step-by-step explanation:

I know and is not stupid

kvasek [131]3 years ago

6 0

Answer:

x=15

x+3x+8x=180(sum of interior angle of triangle)

12x=180

x=180/12=15

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Jenna can type 140 words in 4 minutes. If she needs to type 385 words, how long would this take her? Explain how you got your an

bija089 [108]

Answer:

11 minutes

Step-by-step explanation:

Because she types only 140 words in 4 minutes so if you add

140+140=280

if you divide

140/4 you get 35

so every minute she types in 35 words. So multiply

11 times 35 and you exactly get 385.

7 0

3 years ago

Read 2 more answers

The equation (x-3)^2+(y+7)^2=64 models the position and range of the source of a radio signal. Describe the position of the sour

12345 [234]

$\bf \textit{equation of a circle}\\\\ 
(x- h)^2+(y- k)^2= r^2
\qquad 
center~~(\stackrel{}{ h},\stackrel{}{ k})\qquad \qquad 
radius=\stackrel{}{ r}\\\\
-------------------------------\\\\
(x-3)^2+(y+7)^2=64\implies [x-\stackrel{h}{3}]^2+[y-(\stackrel{k}{-7})]^2=\stackrel{r}{8^2}
\\\\\\
center~(3,-7)\qquad radius=8$

so, the broadcast location and range is more or less like the picture below.