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mash [69]
1 year ago
13

What is the image of (0,-8)(0,−8) after a reflection over the line y=-xy=−x?

Mathematics
1 answer:
AnnZ [28]1 year ago
5 0

Answer:

(8, 0 )

Step-by-step explanation:

under a reflection in the line y = - x

a point (x, y ) → (- y, - x ) , then

(0, - 8 ) → (8, 0 )

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A chord is 10cm from the centre of a circle of radius 15cm. Find the length of the chord.
almond37 [142]

Answer: 21.44 cm

Step-by-step explanation:

Given

Radius r=15 cm

distance of chord from the center is 10 cm

From the figure, the length of the chord is AC

Applying Pythagoras

\Rightarrow AO^2=OB^2+AB^2\\\Rightarrow AB^2=15^2-10^2\\\Rightarrow AB^2=225-100=115\\\Rightarrow AB=\sqrt{115}=10.72\ cm

The length of the chord is AC=2AB=21.44\ cm

5 0
3 years ago
⦁ Find the length of the third angle of a triangle given that the first two angles are 35 and 70. Show your work.
UNO [17]
180 - 70 = 110
110 - 35 = 75
The third angle is 75
3 0
3 years ago
Help please, would it be the answer choice C or D
UkoKoshka [18]

Answer:

probably C

Explanation:

5 0
3 years ago
A midsegment connecting two sides of a triangle is parallel to the third side and equal to which
lys-0071 [83]

Answer:

One half (1/2) the measurement of the third side

Step-by-step explanation:

Mid segment theorem defines the relationship between the constructed line joining the midpoint of two sides of a triangle, and parallel to the third side of the triangle which is also called the midsegment

Whereby the angles are defined by the proportion of the sides, the midsegment will have a length which is half the measurement of the length of the third side.

7 0
2 years ago
Simple random sampling uses a sample of size n from a population of size N to obtain data that can be used to make inferences ab
OLEGan [10]

Answer: 6,77,040 different random samples of four accounts are possible.

Step-by-step explanation:

We have to calculate the different random samples of four accounts are possible from the population of 65 bank accounts.

we are using combination formula for calculating various combination of four accounts:

= ^{n}C_{r}

Where,

n - total population of bank accounts

r - random samples drawn from the population

= ^{65}C_{4}

= \frac{n!}{r!(n-r)!}

= \frac{65!}{4!(65-4)!}

= \frac{65!}{4!(61)!}

= 6,77,040 different random samples of four accounts are possible.

5 0
3 years ago
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