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3 years ago

Brainliest if correct Multiply 3/7 by 4/5

Mathematics

1 answer:

DiKsa [7]3 years ago

4 0

Answer:

Step-by-step explanation:

x1 / y1 times x2 / y2 where are two fractions

x1/y1 times x2/y2 = x1 times x2 / y1 times y2 = z1 / z2 z is a new fraction

fractions multiply like regular wholes number, which can also be represented in fractional form

Examples:

2/1 times 3/1 = 2x3 /1x1 6/1

10/2 x 18/3 = 180/6 now look at 10/2 = 5 18/3 = 6 5x6 = 30

5 x 6 = 30

Now apply to your fractions:

3/7 x 4/5 = 3x4 / 7x5

12/35

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The height of a ball above the ground in feet is defined by the function h(t) = -16t Squared + 80t +3, where t is the number of

jasenka [17]

Plug in 2 for t.
=> -16*(2^2) +80*2 +3
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3 years ago

The ordered pairs (1, 3), (2, 9), (3, 27), and (4, 81) represent a function. Write a rule that represents this function.

Art [367]

Let x be the first number each pair and y is the second of each As you see 1x is 3y
And. 2x is 3*3y= 9y
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lora16 [44]

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3 years ago

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andre [41]

Answer:

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Step-by-step explanation:

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3 years ago

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