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3 years ago

What was John's score on Test 5?

Mathematics

2 answers:

inna [77]3 years ago

7 0

Answer:

90 %

Step-by-step explanation:

John's score on Test 5 is 90%.

When you look from left to right from the tests he's done, and stop at Test 5 and go to the point, it goes up to 90 when you go from right to left

nlexa [21]3 years ago

4 0

Answer:

$90$

Step-by-step explanation:

To find this out, all you have to do is look at the x axis until you find Test 5

Then, go up until you see the line hit a spot on Test 5.

Follow, the line that spot is on to get your answer.

So 90.

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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

4 years ago

I got my ASVAB score back today... And I got a 21%... someone loves kill me now. But I didn't really have time to study for it,

creativ13 [48]

Answer:

dang thats tough..

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Which polynomial represents a sum of cubes?

bija089 [108]

Answer:

1) The polynomial $8x^3+1$ represents a sum of cubes

2) The polynomial $49x^2-25$ represents a difference of squares

Step-by-step explanation:

1) To find the polynomials represents a sum of cubes :

$8x^3+1$ represents a sum of cubes

For $8x^3+1$

$=2^3x^3+1^3$

$=(2x)^3+1^3$

Therefore $8x^3+1=(2x)^3+1^3$

Therefore $8x^3+1$ represents a sum of cubes

2)To find the polynomials represents a difference of squares :

$49x^2-25$ represents a difference of squares

For $49x^2-25$

$=7^2x^2-5^2$

$=(7x)^2-5^2$

Therefore $49x^2-25=(7x)^2-5^2$

Therefore $49x^2-25$ represents a difference of squares

5 0

4 years ago

How do i solve x/3+1=3

OlgaM077 [116]

$\frac{x}{3}$ + 1 = 3

First, multiply both sides by 3. / Your problem should look like: x + 3 = 9.
Second, subtract 3 from both sides. / Your problem should look like: x = 9 - 3.
Third, simplify 9 - 3 to 6. / Your problem should look like: x = 6, which is your answer.

3 0

3 years ago

Read 2 more answers

I NEED HELP <br> The perimeter of the shape is ____ feet.

Mademuasel [1]

Answer:

Step-by-step explanation:

Add all of the sides.

7 0

3 years ago

Read 2 more answers