How do you solve $-28\le -6x$ ?

Frederick Kramer
2022-07-08
Answered

How do you solve $-28\le -6x$ ?

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Let $f\left(x\right)=-9x+20$ and $g\left(x\right)={x}^{2}+8$

Find$f(-5)\cdot g(-5)$

Find

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Whether the statement "The equations $5x-4=2x\text{}{\textstyle \phantom{\rule{1em}{0ex}}}\text{and}{\textstyle \phantom{\rule{1em}{0ex}}}3x=4$ are equivalent equations" is true or false.

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Which of the following expressions is written in scientific notation? $0.09\times {10}^{7}$

asked 2022-07-27

1) Evaluate without using a calculator.

$\mathrm{sec}(-\frac{\pi}{3})-\mathrm{cot}(-\frac{5\pi}{4})$

2) Evaluate without using a calculator.

$\mathrm{cos}\frac{\pi}{2}-\mathrm{csc}(-\frac{\pi}{2})$

3) Simplify the expression:

$\mathrm{tan}\beta \mathrm{cot}\beta $

4) Evaluate without using a calculator.

${\mathrm{sin}}^{2}{20}^{\circ}+\frac{1}{{\mathrm{sec}}^{2}{20}^{\circ}}$

5) Evaluate without using a calculator.

$\frac{\mathrm{sin}(-{40}^{\circ})}{\mathrm{cos}{50}^{\circ}}$

6) Evaluate without using a calculator.

$\mathrm{sin}{400}^{\circ}\mathrm{sec}(-{50}^{\circ})$

7) Find the exact value of all remaining trig functions

$\mathrm{sin}\theta =\frac{4}{5},\theta $ is acute

$\mathrm{sec}(-\frac{\pi}{3})-\mathrm{cot}(-\frac{5\pi}{4})$

2) Evaluate without using a calculator.

$\mathrm{cos}\frac{\pi}{2}-\mathrm{csc}(-\frac{\pi}{2})$

3) Simplify the expression:

$\mathrm{tan}\beta \mathrm{cot}\beta $

4) Evaluate without using a calculator.

${\mathrm{sin}}^{2}{20}^{\circ}+\frac{1}{{\mathrm{sec}}^{2}{20}^{\circ}}$

5) Evaluate without using a calculator.

$\frac{\mathrm{sin}(-{40}^{\circ})}{\mathrm{cos}{50}^{\circ}}$

6) Evaluate without using a calculator.

$\mathrm{sin}{400}^{\circ}\mathrm{sec}(-{50}^{\circ})$

7) Find the exact value of all remaining trig functions

$\mathrm{sin}\theta =\frac{4}{5},\theta $ is acute

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If f(x)=ax^2+bx+c is a quadratic function for which f(0)= -4, f(6) = -6, and f(9) = 2, find coefficients a, b, and c.

asked 2022-02-02

Simplify $20-(2\times 4f)+(2\times 9)+(7\times 9)+(7\times 2f)-(7\times 6)+11$ ?

asked 2022-08-05

A)Consider the set of all non-negative integers, with addition as the binary operation.Is this group? why or why not?

B)let G be a finte group . Show that there are an odd number of elements that satisfy the equation a^3 =e

hint:1)if a is one solution , a^-1 is another

2)a=a^-1 only if a=e

e alon with pairs of solution a.a^-1 b. b^-1. . . . . .

so;

so prove 1 and 2 the hint is true ?

B)let G be a finte group . Show that there are an odd number of elements that satisfy the equation a^3 =e

hint:1)if a is one solution , a^-1 is another

2)a=a^-1 only if a=e

e alon with pairs of solution a.a^-1 b. b^-1. . . . . .

so;

so prove 1 and 2 the hint is true ?