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klio [65]
3 years ago
5

Pls help dont understand any of this

Mathematics
1 answer:
defon3 years ago
6 0

Answer:

Questions 3

X+100+130=360

X+230=360

X=360-230

X=130

Step-by-step explanation:

a+b+c=180

50+50+50=180

150=180

a+b+c=180-150

=30

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Tap on the photo pls help
DerKrebs [107]

Answer:

49

Step-by-step explanation:

5^2 - 4(-3)(2)

5^2 - 4(-6)

25 - 4(-6)

25 - (-24)

49

Hope this helps!

8 0
3 years ago
Read 2 more answers
For what value of x is sin x = cos 19°, where 0°< x < 90°? 38°
mrs_skeptik [129]
Sin x = cos (90-x)
90-x = 19
x = 71
The answer is 71 degrees.
5 0
3 years ago
The sum of two numbers is negative fifteen, and one number is five less than the other. Using the variables m and n to represent
Likurg_2 [28]

We need to use the variables m and n to represent both numbers.

Their sum must equal -15. Therefore, we can write the next equation:

m + n = -15

If one number is five less than the other, we need to choose one variable and then we can write it in terms of the other variable. Then:

n = m-5

To find the value for each number, we can replace the n equation on the first equation:

m + n = -15

m + (m-5)= -15

Then:

m + m - 5 = -15

2m -5 = -15

Solve the equation for m:

Add both sides 5 units:

2m - 5 +5 = -15+5

2m = -10

Divide both sides by 2:

2m/2 = -10/2

m = -5

Finally, replace the m value on the first equation:

m + n = -15

-5 + n = -15

Then, solve the equation for n:

Add both sides by 5:

-5+5 + n = -15 +5

n = -10

Hence, both numbers are m=-5 and n= -10.

The equations separated by a comma are m + n = -15,n = m-5.

The numbers separated by a comma are -5,-10.

6 0
1 year ago
You are driving to visit a friend in another state who lives 440 miles away. you are driving 55 miles per hour and have already
Vanyuwa [196]
I think this might work 440=55x-275 then solve
3 0
3 years ago
Hi I have a question What Does a donkey do if it has 10 toes
dsp73

Answer:

it calls for shreks help

Step-by-step explanation:

because then he does weird stuff with a dragon

5 0
3 years ago
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