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3 years ago

What is the value of x in the proportion ?

Mathematics

1 answer:

Fantom [35]3 years ago

7 0

It is 5 2/5
. Also it can be 5.4

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Jennifer is shopping with her mother. They pay $2 per pound for tomatoes at the vegetable stand. how much would it cost for 56 p

Alenkinab [10]

Answer:

It would cost $112 for 56 pounds of tomatoes.

Step-by-step explanation:

$2 x 56 = $112

4 0

3 years ago

Read 2 more answers

Is 3x+4y=7 linear or nonlinear

Sloan [31]

Linear. It's in the form C= ax + by, so you back solve to get into the form you know is linear (y= mx + b). So using SADMEP (opposite of Pemdas) we can decide which order to solve for "Y=" in. 4y =7-3x. Y=((7-3X)/4). Y= 7/4 -3/4x. Y=-3/4x +7/4. Which is linear

3 0

4 years ago

PLEASE HELP (ASSIGNMENT DUE IN 20 MINUTES)

mezya [45]

Answer:

11 widgets

Step-by-step explanation:

544.50/4.5 = 121

square root 121 = 11

4 0

3 years ago

Please help tysm!!!!!!!!!!

Sindrei [870]

Answer:

QUESTION 4 is 0.05

Step-by-step explanation:

you divide 1 dollar by the 20 apples.

4 0

3 years ago

Find the length of the curve x=e^t e^{-t},\;\;y=5-2t,\;\;0 \le t \le 3.

Oksana_A [137]

$\begin{cases}x(t)=e^t+e^{-t}\\y(t)=5-2t\end{cases}\implies\begin{cases}x'(t)=e^t-e^{-t}\\y'(t)=-2\end{cases}$

The length of the curve is given by the integral

$\displaystyle\int_0^3\sqrt{(e^t-e^{-t})^2+(-2)^2}\,\mathrm dt$

Expand and rewrite the integrand:

$(e^t-e^{-t})^2+(-2)^2=e^{2t}+2+e^{-2t}$
$=e^{-2t}(e^{4t}+2e^{2t}+1)$
$=e^{-2t}(e^{2t}+1)^2$
$\implies\sqrt{(e^t-e^{-t})^2+(-2)^2}=\dfrac{e^{2t}+1}{e^t}$

Now the integral is

$\displaystyle\int_0^3\dfrac{e^{2t}+1}{e^t}\,\mathrm dt=\int_0^3(e^t+e^{-t})\,\mathrm dt$
$=2\displaystyle\int_0^3\cosh t\,\mathrm dt$
$=2\sinh t\bigg|_{t=0}^{t=3}$
$=2\sinh 3$

7 0

3 years ago