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3 years ago

I need help on this question

Mathematics

1 answer:

ArbitrLikvidat [17]3 years ago

3 0

So the real car's engine volume equals 390 inches cubed. For this problem we don't have worry about units really so we will just say 390. When something is to scale like 1 : 18 it means that the model is 1 eighteenth the size of the real thing. So if you divide the volume by 18 it gives you the volume of the model. 390 divided by 18 is about 21.66, and 390 divided by 24 is 16.25, so the 1 : 18 model has the greater volume by about 5.41.

You might be interested in

1. Trig Function

Dima020 [189]

The values of the given trig functions in terms of sinθ and/or cosθ are:

sinθ = tanθ.cosθ

cosθ = sinθ/tanθ

secθ = 1/cosθ

cscθ = 1/sinθ

tanθ = sinθ/cosθ

cotθ = cosθ/sinθ

<h3>Trigonometric functions </h3>

From the question, we are to determine the values of the given trig functions in terms of sinθ and/or cosθ

sinθ

NOTE: tanθ = sinθ / cosθ

∴ sinθ = tanθ.cosθ

cosθ

From above, we can write that

cosθ = sinθ/tanθ

secθ

Secant is the inverse of cosine

∴ secθ = 1/cosθ

cscθ (cosecθ)

Cosecant is the inverse of sine

∴ cscθ = 1/sinθ

tanθ

tanθ = sinθ/cosθ

cotθ

Cotangent is the inverse of tangent
∴ cotθ = 1/tanθ

But, tanθ = sinθ/cosθ

∴ cotθ = cosθ/sinθ

Hence, the values of the given trig functions in terms of sinθ and/or cosθ are:

sinθ = tanθ.cosθ

cosθ = sinθ/tanθ

secθ = 1/cosθ

cscθ = 1/sinθ

tanθ = sinθ/cosθ

cotθ = cosθ/sinθ

Learn more on Trigonometric functions here: brainly.com/question/10316891

#SPJ1

4 0

2 years ago

At the yard sale,3\4 of items for sale were toys and 5\6 of the items for sale were books Were there more toys of books for sale

Vesnalui [34]

Answer:

No, the books had more sales by 5/6 being bigger (Greater Than) than 3/4.

5 0

3 years ago

-9(m+3) +14=-49 please show work

yKpoI14uk [10]

Answer:

m=4

Step-by-step explanation:

−9(m+3)+14=−49

Step 1: Simplify both sides of the equation.

−9(m+3)+14=−49

(−9)(m)+(−9)(3)+14=−49(Distribute)

−9m+−27+14=−49

(−9m)+(−27+14)=−49(Combine Like Terms)

−9m+−13=−49

−9m−13=−49

Step 2: Add 13 to both sides.

−9m−13+13=−49+13

−9m=−36

Step 3: Divide both sides by -9.

−9m

−9

−36

−9

m=4

8 0

3 years ago

PLEAEEEE HELP I have to submit this in 30mins!!!!!!!!!

nalin [4]

Answer:

It should be Volume of water

8 0

3 years ago

Compare and Contrast Graph y = 2x + 5 and y=-13x+5. Describe how these lines are alike and how they are different. *

krek1111 [17]

Here are a couple I found:

Similarities:

They have the same y-intercept of (0,5).
They are both in slope-intercept form.

Differences:

The line of y = -13x + 5 "falls" from left to right. The line of y = 2x + 5 "rises" from left to right.
They have different x-intercepts. (y = 2x + 5 intersects (- $\frac{5}{2}$ , 0) while y = -13x + 5 intersects at ( $\frac{5}{13}$ , 0)

Explanation:

Slope-intercept form is y = mx + b, and by looking at the equations, they both already fit that format, with m as their slope and b as their y-intercept. Also, since they both have a 5 as that "b," their y-intercepts are the same: (0,5).

As for differences, we can see that the coefficient in place of that "m" is positive in y = 2x + 5 and negative in y = -13x + 5. Therefore, one line would rise due to their slope being positive and one would fall due to their slope being negative. They also have two different x-intercepts, which we can calculate by substituting 0 in place of the y, then isolating x.

4 0

3 years ago