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lakkis [162]
3 years ago
8

Evaluate the algebraic expression w + 2z when w = 12, x = 10, y = 5 and z = 9. A. 35 B. 30 C. 28 D. 23

Mathematics
2 answers:
harina [27]3 years ago
8 0

Answer:

B im sure it s be.....

Step-by-step explanation:

why? becuse i took a quize with ths in it GLAD TO HELP!!!!

snow_lady [41]3 years ago
6 0

Answer:

A.

Step-by-step explanation:

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From the question, the center of the hyperbola is

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a is the distance between the center to vertex, which is -1 or 1, and

c is the distance between the center to foci, which is -2 or 2.

b is given as

\begin{gathered} b^2=c^2-a^2 \\ b^2=2^2-1^2 \\ b=\sqrt[]{3} \end{gathered}

But equation of a hyperbola is given as

\frac{(x-h)^2}{a^2}-\frac{(y-k)^2}{b^2}=1

Substituting the values of a, b, h and k, we have

\begin{gathered} \frac{(x-0)^2}{1^2}-\frac{(y-0)^2}{\sqrt[]{3}^2}=1 \\ \frac{x^2}{1}-\frac{y^2}{3}=1 \end{gathered}

Hence the answer is

\frac{x^2}{1}-\frac{y^2}{3}=1

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Step-by-step explanation:

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