3. Marcus records the total number of calories burned after each meal he

Mathematics

1 answer:

Orlov [11]2 years ago

6 0

Answer:

i think its a

Step-by-step explanation:

dont get mad at me if its wrong

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Can you please answer this question

tamaranim1 [39]

$3tan^{2} \theta +7sec\theta=3$
First I converted the equation terms into sine and cosine.
$tan^{2}\theta = \frac{sin^{2}\theta}{cos^{2}\theta}$ and $sec\theta= \frac{1}{cos\theta}$
Substitution:
$\frac{3sin^2\theta}{cos^2\theta} + \frac{7}{cos\theta} =3$
Common Denominator Created:
$\frac{3sin^2\theta}{cos^2\theta} + \frac{7cos\theta}{cos^2\theta} =3$
Multiply each term by the LCD:
$3sin^2\theta+7cos\theta=3cos^2\theta$
Substitution: Recall ⇒ $sin^2\theta =1-cos^2\theta$
$3(1-cos^2\theta)+7cos\theta=3cos^2\theta$
Distribute and collect all terms on one side:
$6cos^2\theta-7cos\theta-3=0$
Factor and set each factor equal to 0:
$(2cos\theta-3)(3cos\theta+1)=0$
$2cos\theta-3=0$ ⇒ $theta=cos^{-1} \frac{3}{2}$
$3cos\theta+1=0$ ⇒ $theta=cos^{-1} \frac{-1}{3}$
The 2nd factor provides only possible answer 109.5 degrees

4 0

3 years ago

Beth is paid $225 per week plus a commission of $20 per sale. This week she wants to earn at least $650. If s represents the min

Dafna11 [192]

Answer:

Step-by-step explanation:

the answer is b because she gets paid 225 per week plus every sale so it going to be 245 she still needs 405 to get 650

Hope this helps

4 0

2 years ago

Read 2 more answers

In Area A, the insurance coverage rate for a wood frame house is 0.46%. In Area B, the insurance coverage rate for a wood frame

Karo-lina-s [1.5K]

To solve for the homeowner's insurance payment for house built in Area B, we simply multiply the cost of the house with the insurance coverage rate in its decimal equivalent. From the given problem,
annual insurance payment = ($65,900)(0.0054)
= $355.86
Thus, the answer is letter A.

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2 years ago

What is the equation in standard form of the line y = 1/9x + 5?

patriot [66]

Answer:

the standard form of equation is in the form of

x - 9y = -45 , so the answer is B