2 years ago

Can someone help me with these 2 questions please 100% correct only

Mathematics

1 answer:

marin [14]2 years ago

5 0

The first one is h+(h+2.5)=22

The second one is w(w+8)=48

not sure about the second one but the first one I am 100% sure about.

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What is the image of (8,-6) after a reflection over the line y = x?

wlad13 [49]

Answer:

Step-by-step explanation:

Interchange x and y: (-6, 8) is the image of (8, -6) after a reflection over y = x.

6 0

2 years ago

Show all work and provide necessary descriptions

masya89 [10]

Let

$P=(P_x,P_y),\quad Q=(Q_x,Q_y)$

If M is the midpoint, the x and y coordinates of M are the average of the x and y coordinates of P and Q:

$M=\left(\dfrac{P_x+Q_x}{2},\ \dfrac{P_y+Q_y}{2}\right)$

We can solve this expression for the coordinates of Q:

$M_x = \dfrac{P_x+Q_x}{2} \implies Q_x = 2M_x-P_x$

$M_y = \dfrac{P_y+Q_y}{2} \implies Q_y = 2M_y-P_y$

Plug in the values for the coordinates of M and P to get

$Q_x = 2M_x-P_x = 2\cdot 5-11 = 10-11=-1$

$Q_y = 2M_y-P_y = 2\cdot (-2) - (-10) = -4+10=6$

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2 years ago

A 5-mile walking trail has markers every ¼ of a mile. How many markers are there along the trail?

likoan [24]

Answer:

20 trail markers

Step-by-step explanation: I would appreciate a brainiiest

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2 years ago

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Find f(5) for f (x)=1/4 (2)^x

Ber [7]

F(5) = 1/4(2)^5
f(5) = 1/4 (32)
f(5) = 8

answer
A. 8

7 0

2 years ago

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4+2(7)= 62+8×3= 3(2+5)−5(3)+8= 24−6+12÷2×3=

Temka [501]

4+2(7)= 18

62+8x3= 86

3(2+5)-5(3)+8= 14

24-6+12÷2x3= 36

Hope this helps you! :D

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2 years ago