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Setler79 [48]
3 years ago
8

Vertical line through (-9,3)

Mathematics
1 answer:
Annette [7]3 years ago
3 0
The answer to this is -9
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PLEASE HELP ASAAP 25 PTS + BRAINLIEST TO RIGHT/BEST ANSWER
Nutka1998 [239]

Let i = sqrt(-1) which is the conventional notation to set up an imaginary number

The idea is to break up the radicand, aka stuff under the square root, to simplify

sqrt(-8) = sqrt(-1*4*2)

sqrt(-8) = sqrt(-1)*sqrt(4)*sqrt(2)

sqrt(-8) = i*2*sqrt(2)

sqrt(-8) = 2i*sqrt(2)

<h3>Answer is choice A</h3>
5 0
3 years ago
Kris is making cookies.
klio [65]

Answer:

Kris can make less than 1 batch of cookies

kris can make exactly 1/2 or 1/3 I think

Step-by-step explanation:

6 0
3 years ago
How far is a chord of length 8 cm from the centre of a circle of radius 5 cm
ivann1987 [24]
  • Answer:

<em>OB = 3 cm</em>

  • Step-by-step explanation:

<em>AO = radius = 5 cm</em>

<em>AB = 8cm/2 = 4 cm</em>

<em>Pythagora</em>

<em>OB² = AO² - AB²</em>

<em>= (5cm)² - (4cm)²</em>

<em>= 25cm² - 16cm²</em>

<em>= 9 cm²</em>

<em>OB = √9cm²</em>

<em>= 3 cm</em>

8 0
4 years ago
In the figure below, △ A B C ∼△ D E F . BX and EY are altitudes of each triangle. Find the measure of EY to the nearest tenth.
Svetllana [295]

Answer:

EY≅ 5.33 cm (nearest to tenth)

Step-by-step explanation:

Two triangles are said to be similar to each other if they have the same shape

(not necessarily the same size) and their corresponding sides are in

proportion

Given that,

AB = 12

DE = 8

BX = 8

ΔABC ∼ ΔDEF means that

  1. ∠A ∼= ∠D, ∠B ∼=∠E and ∠C ∼= ∠F.
  2. Further more, their corresponding sides are in proportion.

So,

12/8 = 8/EY

(by doing cross multiplication)

12EY = 8 × 8

12EY = 64

EY = 64 / 12

EY= 5.3333

EY≅ 5.33 cm (nearest to tenth)

6 0
3 years ago
A coin is tossed 20 times. It lands on heads 9 times. Compare the experimental and theoretical probabilities. If they are not cl
Nataly_w [17]
20×9=180 it says times .A coin is tossed 20 times
5 0
4 years ago
Read 2 more answers
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