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Nookie1986 [14]

2 years ago

6

4.) (7x – 21) = x - 1

1 answer:

Korvikt [17]2 years ago

6 0

The answer is x = 10/3. You just have to add 21 to both sides of this equation then simplify. Hope this helped!

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Solve the equation on the interval [0,2pi] 5sec(x)+7=-3

vovangra [49]

Answer:

Hello,

$x\in \bigg\{\dfrac{2\pi}{3} ,\dfrac{4\pi}{3}\bigg\}\\$

Step-by-step explanation:

$5*sec(x)+7=-3\\\\sec(x)=\dfrac{-10}{5} \\\\\dfrac{1}{cos(x)} =-2\\\\cos(x)=-\dfrac{1}{2} \\\\x=120^o\ or\ x=240^o\\$

8 0

2 years ago

Read 2 more answers

(2x+2y)+(3y-5x) EIHOIVHNVIHVIOE

Nina [5.8K]

$\huge\textsf{Hey there!}$

$\large\text{(2x + 2y) + (3y - 5x)}$

$\rightarrow\large\text{2x + 2y + 3y - 5x }$

$\large\textsf{COMBINE the LIKE TERMS}$

$\large\text{(2x - 5x) + (2y + 3y)}$

$\large\text{2x - 5x = \boxed{\bf -3x}}$

$\large\text{-3x + (2y + 3y)}$

$\large\text{2y + 3y = \boxed{\bf 5y}}$

$\large\text{\bf -3x + 5y}$

$\boxed{\boxed{\large\textsf{Answer: \huge \bf -3x + 5y}}}\huge\checkmark$

$\large\textsf{Good luck on your assignment and enjoy your day!}$

~ $\frak{Amphitrite1040:)}$

4 0

3 years ago

Read 2 more answers

What is the phase of y= -3cos (3x-pi) +5

ratelena [41]

Answer:

$- \frac{\pi}{3}$

Step-by-step explanation:

Given

$y = -3\cos(3x - \pi) + 5$

Required

The phase

We have:

$y = -3\cos(3x - \pi) + 5$

Rewrite as:

$y = -3\cos(3(x - \frac{\pi}{3})) + 5$

A cosine function is represented as:

$y = A\cos(B(x + C)) + D$

Where:

$C \to$ Phase

By comparison:

$C = - \frac{\pi}{3}$

Hence, the phase is: $- \frac{\pi}{3}$

3 0

3 years ago

mom has 18 carnival ride tickets. Each ride takes 3 tickets. Kate would like to ride with jake and Emily. Are there enough ticke

irina [24]

Yes because
Kate: 3X2 = 6
Jake: 3X2 = 6
Emily: 3X2 = 6
add all of those together and you get 18

5 0

2 years ago

he U.S. Bureau of Labor Statistics reports that the average annual expenditure on food and drink for all families is $5700. Assu

Papessa [141]

Answer:

87.08% percentage of families spend more than $4000 annually on food and drink

Step-by-step explanation:

Given -

average annual expenditure on food and drink for all families is $5700

Mean $(\nu)$ = 5700

standard deviation $(\sigma )$ = 1500

Let X be the no of families spend annually on food and drink

percentage of families spend more than $4000 annually on food and drink =

$P(X > 4000)$ = $P(\frac{X - \nu }{\sigma }> \frac{ 4000 - 5700}{1500})$

= $P(Z > - 1.13)$ Using $(Z = \frac{X - \nu }{\sigma })$

= 1 - $P(Z$

= 1 - .1292

= .8708

= 87.08%

7 0

3 years ago