2 years ago

How to calculate roots when the equation is non quadratic?

1 answer:

3 0

Use the Rational Root Theorem, which gives all the possible values that are roots. From there, you can use either algebraic long division or synthetic division to figure out from the possible roots.

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Can you guys check these :) I’ll give brainleist :)

stiv31 [10]

Answer:

9. No

10. Yes

Step-by-step explanation:

The first one is not, since you have (3, 3) and (3, 9). In a function, each x maps to a single y.

The second one is since every x appears only once.

8 0

2 years ago

In ABC with the right angle at vertex C, sin(b)= (26)/8. What is sin(a)?

Marat540 [252]

Answer:

We can use the Pythagorean theorem and properties of sines, cosines, and tangents to solve the triangle, that is, to find unknown parts in terms of known parts.

Step-by-step explanation:

Pythagorean theorem: a2 + b2 = c2.

Sines: sin A = a/c, sin B = b/c.

Cosines: cos A = b/c, cos B = a/c.

Tangents: tan A = a/b, tan B = b/a.

4 0

2 years ago

Express p as the subject of the formula<br>q= p² - r ÷ t

Rudik [331]

Answer:

p = $\sqrt{q +\frac{r}{t} }$

Step-by-step explanation:

q= $p^{2}$ - r÷ t using BODMAS

q = $p^{2}$ - (r/t)

q + r/t = $p^{2}$

p= $\sqrt{q+\frac{r}{t} }$

7 0

2 years ago

13x - 1<br> what does x equal in this

Whitepunk [10]

Answer:

x = 7

Step-by-step explanation:

13x - 1 = 90

+1 +1

13x = 91

divide 13 by both sides of the equal sign

x = 7

4 0

2 years ago

What is a quarter of 1000? Someone pls help

barxatty [35]

Answer:

250

Step-by-step explanation:

One quarter of 100 would be 25, so adding a zero to 100 (1000) would also mean adding a 0 to 25. Therefore, 250

7 0

2 years ago