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8090 [49]
3 years ago
7

List 3 values that would make this inequality true 43 < y -30

Mathematics
1 answer:
prohojiy [21]3 years ago
4 0
43 < y - 30
add 30 to both sides
73 < y

y can be anything that is greater than 73
so it could be...
101, 74, 90, 75, 980767, 5674, etc.

Hope this helps!
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What is the value of the digit 1 in the number 13?
MissTica

Answer:

Wouldn't it be the 10's place? I hope it's right.

Step-by-step explanation:

Ex. 136

1 = hundredths place

3 = tenths place

6 = ones place

8 0
3 years ago
Read 2 more answers
7 MORE THAN TWICE a number n
Sever21 [200]

Answer:

2n+7

Step-by-step explanation:

7 more than twice n would be:

2n+7

this is because twice n would mean that you'd multiply n by 2, and by 7 more than they mean you would add 7 to that.

5 0
3 years ago
Please help with this problem.
larisa86 [58]

Answer:

60°, 120°

Step-by-step explanation:

\frac{ {tan}^{2}x }{2}  - 2 {cos}^{2}x = 1 \\   \\  \frac{ {tan}^{2}x  - 4{cos}^{2}x }{2} = 1 \\  \\ {tan}^{2}x  - 4{cos}^{2}x = 2 \\  \\  \frac{{sin}^{2}x}{{cos}^{2}x} - 4{cos}^{2}x = 2 \\  \\ \frac{{sin}^{2}x - 4{cos}^{4}x}{{cos}^{2}x}  = 2 \\  \\ {sin}^{2}x - 4{cos}^{4}x = 2{cos}^{2}x \\  \\ 4{cos}^{4}x  + 2{cos}^{2}x - {sin}^{2}x = 0  \\  \\ 4{cos}^{4}x  + 2{cos}^{2}x  +  {cos}^{2}x  - 1= 0  \\  \\ 4{cos}^{4}x  + 3{cos}^{2}x   - 1= 0  \\  \\ 4{cos}^{4}x  + 4{cos}^{2}x -   {cos}^{2}x - 1= 0  \\  \\4{cos}^{2}x({cos}^{2}x + 1) - 1({cos}^{2}x + 1) = 0 \\  \\ ({cos}^{2}x + 1)(4{cos}^{2}x - 1) = 0 \\  \\ ({cos}^{2}x + 1) = 0 \: or \: (4{cos}^{2}x - 1) = 0 \\  \\ {cos}^{2}x =  - 1 \: or \: 4{cos}^{2}x = 1 \\  \\ {cos}x = \sqrt{ - 1}  \: which \: is \: not \: possible \\  \therefore \: {cos}^{2}x =  \frac{1}{4}  \\  \\ \therefore \: {cos}x =   \pm\frac{1}{2} \\  \\ \therefore \: {cos}x =   \frac{1}{2}  \: or \: {cos}x =    - \frac{1}{2}  \\  \\ \therefore \: {cos}x =   {cos}60 \degree \: or \: {cos}x =     {cos}120 \degree \\  \\ \therefore \:x = 60 \degree \:  \: or  \: \: x  = 120 \degree

6 0
3 years ago
What is 10/10 + 3/5?<br><br> I just need the answer nothing else
forsale [732]
10/10 + 3/5 = 1 3/5

hope this helps
4 0
3 years ago
Read 2 more answers
10+20=2(5+___what that’s all I need help on this please
topjm [15]
10 because 2x10 is 20
7 0
3 years ago
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