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3 years ago

12. What is the scale factor of a drawing ifthe scale is 1 inch = 4 feet?

Mathematics

1 answer:

AveGali [126]3 years ago

7 0

Answer:

if i was u i would either put g or h because there's no 48 in the word problem

Step-by-step explanation:

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Bella spent 15% of her paycheck at the mall, and 40% of that was spent at the

Bingel [31]

Answer:

$229

Step-by-step explanation:

Pay check = P

Total spent movie T = $13.74

T = 0.4 *0.15* P = $13.74

The 40% on the Movie Theatre spending is part of the 15% spending at the mall.

So 40% of 15% of the Pay Check = $13.74

P = $13.74 / (0.4*0.15) = 34.35/0.15 = 229

5 0

2 years ago

Read 2 more answers

2^5×5×11 and 2^3×5^2×7

IceJOKER [234]

Answer:

1. 1760

2. 1400

Step-by-step explanation:

2^5 = 32

32 × 5 = 160

160 × 11 = 1760

2^3 = 8

5^2 = 25

8 × 25 = 200

200 × 7 = 1400

4 0

3 years ago

katie is baking cookies. the recipe calls for 3 eggs for every 2 cups of sugar. She will need 12 eggs.

asambeis [7]

She will need 8 cups because if u multiply 3 x 4 = 12 and multiply 2x 4 and that gives you 8

7 0

2 years ago

Find general solutions of the differential equation. Primes denote derivatives with respect toÂ x.

zepelin [54]

Answer:

$\mathbf{3x^2y^3+2xy^4=C}$

Step-by-step explanation:

From the differential equation given:

$6xy^3 +2y ^4 +(9x^2y^2+8xy^3) y' = 0$

The equation above can be re-written as:

$6xy^3 +2y^4 +(9x^2y^2+8xy^3)\dfrac{dy}{dx}=0$

$(6xy^3 +2y^4)dx +(9x^2y^2+8xy^3)dy=0$

Let assume that if function M(x,y) and N(x,y) are continuous and have continuous first-order partial derivatives.

Then;

M(x,y) dx + N (x,y)dy = 0; this is exact in R if and only if:

$\dfrac{{\partial M }}{{\partial y }}= \dfrac{\partial N}{\partial x}}} \ \ \text{at each point of R}$

relating with equation M(x,y)dx + N(x,y) dy = 0

Then;

$M(x,y) = 6xy^3 +2y^4\ and \ N(x,y) = 9x^2 y^2 +8xy^3$

So;

$\dfrac{\partial M}{\partial y }= 18xy^3 +8y^3$

$\dfrac{\partial N}{\partial y }$

Let's Integrate $\dfrac{\partial F}{\partial x}= M(x,y)$ with respect to x

Then;

$F(x,y) = \int (6xy^3 +2y^4) \ dx$

$F(x,y) = 3x^2 y^3 +2xy^4 +g(y)$

Now, we will have to differentiate the above equation with respect to y and set $\dfrac{\partial F}{\partial x}= N(x,y)$ ; we have:

$\dfrac{\partial F}{\partial y} = \dfrac{\partial}{\partial y } (3x^2y^3+2xy^4+g(y)) \\ \\ = 9x^2y^2 +8xy^3 +g'(y) \\ \\ 9x^2y^2 +8xy^3 +g'(y) =9x^2y^2 +8xy^3 \\ \\ g'(y) = 0 \\ \\ g(y) = C_1$

Hence, $F(x,y) = 3x^2y^3 +2xy^4 +g(y) \\ \\ F(x,y) = 3x^2y^3 + 2xy^4 +C_1$

Finally; the general solution to the equation is:

$\mathbf{3x^2y^3+2xy^4=C}$

5 0

2 years ago

510x10^8 in standard form please help quick

GenaCL600 [577]

Answer:

51,000,000,000

Step-by-step explanation:

the 10^8 usually determines how many 0's will be added to the right side of the number

thus- 510x10^8 = 51,000,000,000

6 0

3 years ago

12. What is the scale factor of a drawing ifthe scale is 1 inch = 4 feet?​

12. What is the scale factor of a drawing ifthe scale is 1 inch = 4 feet?