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coldgirl [10]
3 years ago
14

Need answer for number 19

Mathematics
1 answer:
jeka943 years ago
3 0

Answer:

c

Step-by-step explanation:

at least means >=

n+17 >= 68

so n>=51

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Help please its a quiz.
Anettt [7]
It’s C because it matches please tell me if I’m wrong
7 0
3 years ago
Read 2 more answers
Solve for all values of x by factoring.<br> x^2 + 4x – 30 = -3x
vichka [17]

Answer:

{x}^{2}  + 4x - 30 =  - 3x \\{x}^{2}  + 7x - 30 = 0 \\  {x}^{2}  - 3x + 10x - 30 = 0 \\ x(x - 3) + 10(x - 3) = 0 \\ (x - 3)(x + 10) = 0 \\  \boxed{x = 3} \\  \boxed{x =  - 10}

<h3><em><u>x=3 or x=-10</u></em> is the right answer.</h3>

7 0
3 years ago
Which expressions are equivalent to 12 - 14/3t + 2/3t? Select ALL that apply. Please show how you got the answer.
geniusboy [140]

Answer:

B and F

Step-by-step explanation:

Equivalent expressions are expressions which in simplest form are equal. Simplify each expression to see each equals the simplest form of 12 - 14/3 t + 2/3 t.

12 - 14/3t + 2/3 t simplifies to 12 - 12/3t = 12 - 4t.

The options are:

a. 8t

b. 12-4t

c. -4(3 + t)  = -12 - 4t

d. 4(t - 3)  = 4t - 12

e. 12 - 16/3t

f. -4(t - 3) = -4t + 12

b and f are equivalent

6 0
4 years ago
Find the value of this pronumeral
patriot [66]
A straight angle measures 180º. 
A triangle's interior angles also measure 180º.  
The angle measuring 130º is complementary to the corresponding interior angle, so that interior angle plus 130 has to equal exactly 180º. 
180 - 130 = 50º 
45 + 50 = 95º, so subtract that from 180 to find the measure of the last interior angle of the triangle. 
180 - 95 = 85º 
That angle of 85º is complementary to the other outside angle, n, and to find that subtract 85 from 180. 
180 - 85 = 95º 
n = 95 
Hope this helps!
3 0
3 years ago
Find the measure of the following angles given
olga55 [171]

Answer:

Step-by-step explanation:

m∠8 = 130

m∠6 = 130

m∠7 = 50

m∠11 = 65

m∠15 = 65

m∠10 = 65

7 0
3 years ago
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