3 years ago

Use the following function rule to fine the f(x)=9-7[x]

Mathematics

1 answer:

nataly862011 [7]3 years ago

6 0

Nice bro I like it right? No

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. One half of a number represented by x is -0.25. What is the value of x?

Jlenok [28]

Of means multiply
is means equals

1/2 • x = -.25

Rewritten

.5•x=-.25

Inverse operations to isolate the variable.

x = -.25/.5

x = -.5

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4 years ago

72in is how much yards

Gelneren [198K]

Answer:

2 yards is the answer

Step-by-step explanation:

1 yard is 3 feet so 36 inches all you have to do is 36 times 2 equals 72

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3 years ago

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Use the quadratic formula to find the solutions to the quadratic equation below x^2-6x-5=0

Sonja [21]

Answer:

$\large\boxed{x=3-\sqrt{14}\ \vee\ x=3+\sqrt{14}}$

Step-by-step explanation:

$x^2-6x-5=0\qquad\text{add 5 to both sides}\\\\x^2-6x=5\\\\x^2-2(x)(3)=5\qquad\text{add}\ 3^2\ \text{to both sides}\\\\x^2-2(x)(3)+3^2=5+3^2\qquad\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\(x-3)^2=5+9\\\\(x-3)^2=14\to x-3=\pm\sqrt{14}\qquad\text{add 3 to both sides}\\\\x=3-\sqrt{14}\ \vee\ x=3+\sqrt{14}$