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4 years ago

9

7 5/10 -2 1/2 I will really like help thanks

2 answers:

Alisiya [41]4 years ago

6 0

If I'm not mistaken five would be the answer

Sholpan [36]4 years ago

5 0

5 3/10 is the awnser

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What is the discriminant of 9x2 + 2 = 10x?<br> a. -356<br> b.–172<br> c.28<br> d. 72

velikii [3]

<span>Discriminant is 28 (c) First get the equation into the form: Ax^2 + Bx + C = 0 (the quadratic equation).. By subtracting 10x both sides (to get it on the other side).. 9x^2 + 2 = 10x 9x^2 - 10x + 2 = 10x - 10x 9x^2 - 10x + 2 = 0 Now the discriminant is: b^2 - 4ac The quadratic equation is Ax^2 + Bx + C = 0 Here, A = 9, B = -10 and C = 2 (-10)^2 - 4 (9)(2) = 100 - 4 (18) = 100 - 72 = 28</span>

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4 years ago

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Which angle, θ, forms the point on the unit circle with the coordinates (sqrt2/2, sqrt2/2)?

Nataly_w [17]

If you look at a unit circle (or you have one memorized, which I would strongly suggest) (√2/2,√2/2) is located at the radian value $\pi /4$ , which is 45 degrees

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4 years ago

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Please explain how to help me learn please

devlian [24]

Https://us-static.z-dn.net/files/d5b/b845384fc1268b12d8e26abf6f82a538.jpeg

5 0

4 years ago

I need help on 4,5,6, and 7.

levacccp [35]

Answer:

A closed dot means (or equal to) which i will be signifying with bold numbers

3) 2 < x > 5

4) 5 < t > 3

5) -3 < m > -1

6) -2 < x < -6 (This one feels like its not right but I cant find a better way to state it)

7) 36 > Fridge < 46

4 0

4 years ago

21 and 22 are complementary angles.

Bumek [7]

The measure of angle 2 is $\angle 2=14^{\circ}$

Explanation:

Given that $\angle 1$ and $\angle 2$ are complementary angles.

Also, the measure of angle 1 is $\angle 1= 76^{\circ$

We need to determine the measure of $\angle 2$

Since, we know that the complementary angles add up to 90°, then the angles $\angle 1$ and $\angle 2$ add up to 90°.

Thus, we have,

$\angle 1+\angle 2=90^{\circ}$

Substituting the value of $\angle 1$ in the above expression, we have,

$76^{\circ}+\angle 2= 90^{\circ}$

Subtracting both sides by 76°, we get,

$\angle 2 = 90^{\circ}-76^{\circ}$

Simplifying, we have,

$\angle 2 = 14^{\circ}$

Thus, the measure of angle 2 is $\angle 2=14^{\circ}$

8 0

3 years ago