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melamori03 [73]
3 years ago
15

Question

Mathematics
1 answer:
NeTakaya3 years ago
3 0

9514 1404 393

Answer:

  • 80 minutes
  • 34.4 km

Step-by-step explanation:

Use the second equation to substitute for d in the first equation.

  0.43t = 0.33t +8

Subtract 0.33t from both sides

  0.10t = 8

Multiply by 10

  t = 80 . . . . . . Michelle will catch Jen in 80 minutes

The distance traveled will be ...

  d = 0.43t = 0.43×80 = 34.4 . . . . km

The girls will have traveled 34.4 km when they meet.

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Parallelogram ABCD is dilated to form EFGG. Which corresponding angle is congruent to angel A?
sveta [45]
Is there a picture?? i’m not sure what the answer is
8 0
3 years ago
Hamza buys a car for £900 and sells it for £1,280. Write the sale price as a percentage of the original price. Give your answer
vazorg [7]

The sale price of the car as a percentage of the original price is 142%

<h3>Percentage</h3>

  • Cost of buying = £900
  • Cost of selling = £1,280

Sale price as a percentage of the original price = sale price / buying price

= 1280/900 × 100

= 1.42222222222222 × 100

= 142.22%

Approximately,

142%

Learn more about percentage:

brainly.com/question/843074

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7 0
2 years ago
Help! Please! <br> Factor the polynomial completely.<br> 32z^5-2z
Sever21 [200]

Answer:

2z(4z^2+1)(2z+1)(2z-1)

Step-by-step explanation:

here is just some basic polynomial factoring where you find something both the numbers have in common and you take that out of the equation. here i just went a little bit deeper and after taking out the common factor i also expanded my answer further as this would be the fully correct answer.

hope this helps!

5 0
2 years ago
Read 2 more answers
Triangle PQR is transformed to triangle P'Q'R'. Triangle PQR has vertices P(4, 0), Q(0, −4), and R(−8, −4). Triangle P'Q'R' has
Whitepunk [10]

Answer:

Please find attached the required plot accomplished with an online tool

Part A:

1/4

Part B:

P''(-1, 0),  Q''(0, -1), and R''(2, -1)

Part C:

Triangle PQR is similar to triangle P''Q''R'' but they are not congruent

Step-by-step explanation:

Part A:

Triangle ΔPQR has vertices P(4, 0), Q(0, -4), R(-8, -4)

Triangle ΔP'Q'R' has vertices P'(1, 0), Q'(0, -1), R'(-2, -1)

The dimensions of the sides of the triangle are given by the relation;

l = \sqrt{\left (y_{2}-y_{1}  \right )^{2}+\left (x_{2}-x_{1}  \right )^{2}}

Where;

(x₁, y₁) and (x₂, y₂) are the coordinates on the ends of the segment

For segment PQ, we place (x₁, y₁) = (4, 0) and (x₂, y₂) = (0, -4);

By substitution into the length equation, we get;

The length of segment PQ = 4·√2

The length of segment PR = 4·√10

The length of segment RQ = 8  

The length of segment P'Q' = √2

The length of segment P'R' = √10

The length of segment R'Q' = 2

Therefore, the scale factor of the dilation of ΔPQR to ΔP'Q'R' is 1/4

Part B:

Reflection of (x, y) across the y-axis gives;

(x, y) image after reflection across the y-axis = (-x, y)

The coordinates after reflection of P'(1, 0), Q'(0, -1), R'(-2, -1) across the y-axis is given as follows;

P'(1, 0) image after reflection across the y-axis = P''(-1, 0)

Q'(0, -1) image after reflection across the y-axis = Q''(0, -1)

R'(-2, -1) image after reflection across the y-axis = R''(2, -1)

Part C:

Triangle PQR is similar to triangle P''Q''R'' but they are not congruent as the dimensions of the sides of triangle PQR and P''Q''R'' are not the same.

6 0
3 years ago
What is the answer for 3x=1.2+1.2+1.2
Savatey [412]
The answer is 1.2 b/c you have to solve x by simplifying both sides of the equation and isolating the variable.
5 0
3 years ago
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