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3 years ago

What does 0 = 0 mean regarding the solution to the system?

Mathematics

1 answer:

Nata [24]3 years ago

6 0

Answer:

It means the left side of the equation equals the right side of the equation regardless of the value of the variables. The solution is all real numbers for each variable

Step-by-step explanation:

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A compact disc cover is 14 centimeters (cm) long, 12.4cm wide, and 1 cm deep. Which of the following represents the surface area

bogdanovich [222]

Answer:

SA= 2(l x w) |+2(l x h)+2(h x w)

= 2(14 x 12.4) +2(14 x 1)+2(1x 12.4)

=2(173.6)+2(14)+2(12.4)

=347.2|+28+24.8

Surface area is: 400 cm square

Step-by-step explanation:

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3 years ago

What is a square mile when rounding decimals

xeze [42]

2,452 now txt me ASAP txt back ok txt back ASAP

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4 years ago

Please answer the question to the best of your ability :)

Korolek [52]

Answer:

7x^2y(2x-3y)

Step-by-step explanation:

Factor 7x^2y out of 14x^3y-21x^2y^2

3 0

3 years ago

Suppose that θ is an acute angle of a right triangle and that sec(θ)=52. Find cos(θ) and csc(θ).

insens350 [35]

Answer:

$\cos{\theta} = \dfrac{1}{52}$

$\csc{\theta} = \dfrac{52}{\sqrt{2703}}$

Step-by-step explanation:

To solve this question we're going to use trigonometric identities and good ol' Pythagoras theorem.

a) Firstly, sec(θ)=52. we're gonna convert this to cos(θ) using:

$\sec{\theta} = \dfrac{1}{\cos{\theta}}$

we can substitute the value of sec(θ) in this equation:

$52 = \dfrac{1}{\cos{\theta}}$

and solve for for cos(θ)

$\cos{\theta} = \dfrac{1}{52}$

side note: just to confirm we can find the value of θ and verify that is indeed an acute angle by $\theta = \arccos{\left(\dfrac{1}{52}\right)} = 88.8^\circ$

b) since right triangle is mentioned in the question. We can use:

$\cos{\theta} = \dfrac{\text{adj}}{\text{hyp}}$

we know the value of cos(θ)=1\52. and by comparing the two. we can say that:

length of the adjacent side = 1
length of the hypotenuse = 52

we can find the third side using the Pythagoras theorem.

$(\text{hyp})^2=(\text{adj})^2+(\text{opp})^2$

$(52)^2=(1)^2+(\text{opp})^2$

$\text{opp}=\sqrt{(52)^2-1}$

$\text{opp}=\sqrt{2703}$

length of the opposite side = √(2703) ≈ 51.9904

we can find the sin(θ) using this side:

$\sin{\theta} = \dfrac{\text{opp}}{\text{hyp}}$

$\sin{\theta} = \dfrac{\sqrt{2703}}{52}}$

and since $\csc{\theta} = \dfrac{1}{\sin{\theta}}$

$\csc{\theta} = \dfrac{52}{\sqrt{2703}}$

4 0

3 years ago

Eliza is a chef at a restaurant. she is making spaghetti sauce and put 21 tomatoes and 6 onions in the pot. what is the ratio of

seraphim [82]

These are not hard....u just have to pay very close attention to the wording. Keep in mind ratios can be written as fractions too.

ratio of tomatoes to onions = 21:6 which reduces to 7:2...because there is 21 tomatoes and 6 onions. (21/6 reduces to 7/2...ratios written as fractions)

However, if it would have asked the ratio of onions to tomatoes, it would have been 6:21....which reduces to 2:7....so pay attention to the wording on problems such as these

so ur answer is 7:2

6 0

3 years ago