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3 years ago

Which graph represents the parametric equations x(t) = t + 3 and y(t) = t2 – 1 for –1 ≤ t ≤ 3?

Mathematics

2 answers:

devlian [24]3 years ago

8 0

Answer:

Graph 4 or D on edge

Step-by-step explanation:

guy above is correct

olga2289 [7]3 years ago

3 0

Answer:

Step-by-step explanation:

Trust Me

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Catherine is at the Supermarket, and knows that she is 50 yards from her school. The map on her phone shows that the school is \

Lubov Fominskaja [6]

Answer:

Answer: b 200 yards

Step-by-step explanation:

Scaling

Real magnitudes can be scaled up or down to adapt to the size of a sheet of paper or the screen of a computer or phone.

Catherine knows she is 50 yards from the school and it's shown as a distance of 3/4 inch on her phone map.

We can calculate the scaling factor from the real distance to the map distance by dividing:

$\displaystyle \frac{50}{\frac{3}{4}}=\frac{200}{3}$

Now she sees that she's 3 inches from home on the same map. This is equivalent to a real distance of:

$\displaystyle 3\cdot \frac{200}{3}=200$

Catherine is 200 yards from her home.

Answer: b 200 yards

4 0

3 years ago

Help me please if u answer these i will love u forever

Genrish500 [490]

Answer:

1. Yes

2. No

3. Yes

4. No

5. Yes

6. No

1____I____1.95

2____I____3.90

3____I____5.85

4____I____7.80

1____I____1 1/3

2____I____2 2/3

3____I____4

4____I____5 1/3

1____I____62

4____I____248

7____I____434

9____I____558

10.

0.75____I____1.17

1.25____I____2.95

2____I____4.72

2.5____I____5.9

11.

2____I____1.6

4____I____3.2

6____I____4.8

8____I____6.4

12.

1____I____3 7/8

2____I____7 6/8

3____I____11 5/8

4____I____15 1/2

5 0

3 years ago

Xy′ = √(1 − y2 ), y(1) = 0

tigry1 [53]

Answer:

y=sin(ln(x))

Step-by-step explanation:

First, we have to order the terms as follows and express y' as dy / dx:

$x*\frac{dy}{dx} =\sqrt{(1-y^{2} )} \\\frac{x}{dx}=\frac{dy}\sqrt{(1-y^{2} )}}\\\frac{dx}{x}=\frac{dy}{\sqrt{(1-y^{2} )} }$

Then, we have to integrate

$\int{\frac{dx}{x}=\int{\frac{dy}{\sqrt{(1-y^{2} )} }$

with this solution after integration:

$ln(x)+C1=arcsin(y)+C2$

Then, we have to reorder

$arcsin(y)=ln(x)+C$

and applied Sin function on both sides

$sin(arcsin(y))=sin(ln(x)+C)\\y=sin(ln(x)+C)$

To define the value of C, we use the known point y(1)=0 and replace in the equation

$y=sin(ln(x)+C)\\0=sin(ln(1)+C)\\0=sin(0+C)\\0=sin(C)\\C=arcsin(0)\\C=0$

The function that proves that differential equation is

$y=sin(ln(x))$

6 0

3 years ago

–11 • 55 =will award brainliest

sineoko [7]

Answer:

-605

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Which number is greater than -24

Sophie [7]

Hey there!

You are correct! -16 is the right answer! Good job!

Hope this helps!

Always remember, you are a Work Of Art!
- Nicole :) <3

6 0

3 years ago

Read 2 more answers