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3 years ago

Help ASAP! Voting all answers as 5 stars with a thanks. (:

Mathematics

2 answers:

FinnZ [79.3K]3 years ago

6 0

Answer:

A=68

Step-by-step explanation:

solniwko [45]3 years ago

3 0

For this case, we have that by definition, the area of the trapezoid, shown in the figure, is given by:

$A = \frac {1} {2} (b_ {1} + b_ {2}) * h$

In this case:

$b_ {1} = 17 \ cm\\b_ {2} = 9 \ cm\\h = 8 \ cm$

Substituting we have:

$A = \frac {1} {2} (17 + 9) * 8\\A = \frac {1} {2}( 26 * 8)\\A = 104 \ cm ^ 2$

Answer:

$A = 104 \ cm ^ 2$

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i need help with math You reflect triangle PQR, with coordinates P(-4, -4), Q(-1, -3), and R(-3, -1), across the x-axis, across

meriva

Answer:

After these reflections, the coordinates of P' will be P'(4,-4)

Step-by-step explanation:

The question is

After these reflections, the coordinates of P' will be?

we have

Triangle PQR, with coordinates P(-4, -4), Q(-1, -3), and R(-3, -1)

Part 1) Reflect triangle PQR across the x-axis

we know that

The rule of the reflection of a point across the x-axis is

(x,y) -----> (x,-y)

Applying the rule of the reflection across the x-axis at the coordinates of triangle PQR

P(-4, -4) -----> P'''(-4,4)

Q(-1, -3) -----> Q'''(-1, 3)

R(-3, -1) ----> R'''(-3, 1)

Part 2) Reflect triangle P'''Q'''R''' across the y-axis

we know that

The rule of the reflection of a point across the y-axis is

(x,y) -----> (-x,y)

Applying the rule of the reflection across the y-axis at the coordinates of triangle P'''Q'''R'''

P'''(-4,4) -----> P''(4,4)

Q'''(-1, 3) ---> Q''(1, 3)

R'''(-3, 1) ---> R''(3, 1)

Part 3) Reflect triangle P''Q''R'' across the x-axis again

we know that

The rule of the reflection of a point across the x-axis is

(x,y) -----> (x,-y)

Applying the rule of the reflection across the x-axis at the coordinates of triangle P''Q''R''

P''(4,4) ----> P'(4,-4)

Q''(1, 3) ----> Q'(1, -3)

R''(3, 1) ----> R'(3, -1)

therefore

After these reflections, the coordinates of P' will be P'(4,-4)

7 0

4 years ago

Two friends share 7 cookies equally .How many cookies does each friend get

algol13

Answer:

they would get 3 1/2

Step-by-step explanation:

because if there's two friends and seven cookies one friend we get three and the other one will get three and they could split the other cookie in half so that each Friend can have three cookies and a half if they split

7 0

4 years ago

Please answer this! (from khan academy 6th grade math)

Sladkaya [172]

Answer:

(-5, -7) and the x-axis

Step-by-step explanation:

when looking for a point that is 7 points away, we are looking for a difference of 7 in either the x-value or the y-value.

[remember: a point is written as (x, y) ]

We know that the x-value is -7, meaning that it is 7 units under the x-axis (meaning that it is 7 units away)

We know that our point, (2 , -7) has the same y-value as (-5, -7), so we are looking for a change in x. The difference (which is the change) between:

-5 and 2 is 7

(2 - (-5) = 2 + 5 = 7)

so, both the x-axis and the point (-5, -7) are 7 units away from (2, -7)

(the other point (-7, 7) is not near (2 , -7) at all--they have a larger difference on both the y-values, the x-values, and the length of if you made a diagonal line)

(I've attached an image to help you visualize what we're doing)

hope this helps!!

6 0

2 years ago

How many thousand makes a million

blagie [28]

Answer:

one thousand thousands

hope you have a good day sir/ma'am!!!

8 0

3 years ago

Is (3, 3) a solution to the equation y = x? yes no

liq [111]

Answer:

yes

Step-by-step explanation:

4 0

3 years ago