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White raven [17]
3 years ago
12

I need help please.

Mathematics
2 answers:
Helen [10]3 years ago
7 0
The answer of the following question is what the other person said
forsale [732]3 years ago
4 0
Its letter D
7(19)-21 (x=19)
133-21=112 (RZ)
112+112=224 (RT)
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How do you solve k/2+9=30
Mrrafil [7]
If you would like to solve the equation k / 2 + 9 = 30, you can calculate this using the following steps:

k / 2 + 9 = 30
k / 2 = 30 - 9 
k / 2 = 21     /*2
k = 21 * 2
k = 42

The result is 42.
4 0
3 years ago
Read 2 more answers
Find the gradient of the line 2x+7y=14
Alex777 [14]

Answer:

-2/7

Step-by-step explanation:

2x+7y=14

7y=-2x+14

divide by 7

y=-2/7 x+2

4 0
3 years ago
If a man walks for 6 miles a steady speed of 3 mph, how long will it take him
Mrrafil [7]
I think you need to divide
6 0
3 years ago
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Zack, Rachel, and Maddie are unraveling a huge ball of yarn to see how long it is. As they move away from each other, they form
Korolek [52]
We are tasked to solve the three angles given that we have the measurements of the sides such as
a = Zack to Rachel distance
b = Rachel to Maddie distance
c = Maddie to Zack distance

a =3
b =2.5
c =4

Solving the angles we need to use Law of Cosines:
cos A = 2.5² + 4² -3² /2*2.5*4
A = 48.59°

cos B=3² + 4² - 2.5² / 2*3*4
B = 38.625°

C=180 - 48.59° - 38.625°
C= 92.79°

The three angles are 48.59°,38.63° and 92.79°. 
8 0
3 years ago
Why is this undefined
Burka [1]
Because you can’t divide something by zero!
Hope this helps!
7 0
3 years ago
Read 2 more answers
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