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Kryger [21]
4 years ago
10

Diane simplified the expression below 8(1+2i)-(7-3i)=1+5i

Mathematics
1 answer:
jekas [21]4 years ago
6 0

Answer:

i=0

Step-by-step explanation:

8(1+2i)-(7-3i)=1+5i

8+16i-7+3i=1+5i

1+19i=1+5i

1+19i-5i=1

1+14i=1

14i=1-1

14i=0

i=0/14

i=0

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Which postulate or theorem proves that these two triangles are congruent?
gulaghasi [49]

Answer:

Option (B)

Step-by-step explanation:

From the given picture,

Given:

Two lines PM and QR are intersecting each other at a point N.

∠NMR ≅ ∠NPQ

NR ≅ QN

To prove:

ΔMNR ≅ ΔPNQ

              Statements                               Reasons

1). NR ≅ QN                                 1). Given

2). ∠NMR ≅ ∠NPQ                     2). Given

3). ∠MNR ≅ ∠PNQ                     3). Definition of vertical angles

4). ΔMNR ≅ ΔPNQ                     4). AAS theorem of congruence

Therefore, Option (B) will be the correct option.

6 0
4 years ago
a doctor order calls for you to administer 0.1 mg of epinephrine in stock is a 1ml ampule that contains1 mg of epinephrine cacul
Darina [25.2K]

If 1 ml of volume contains 1 mg of epinephrine, then 0.1 ml of volume contains 0.1 mg of epinephrine.

Let x be the number of ml you need.

Ratio: 1 ml is to 1 mg as x ml is to 0.1 mg

(1 ml)/(1 mg) = (x ml)/(0.1 mg)

Cross multiply.

1 * x = 1 * 0.1

x = 0.1

Answer: 0.1 ml

6 0
4 years ago
How do you calculate the value of the height, base or width of a rectangle, when the given volume, is 10m^3 and the base is twic
harkovskaia [24]

The length and width of the rectangle is 2√5m and √5m respectively

<h3>Volume of a rectangle</h3>

The formula for calculating the volume of a rectangle is expressed as:

V = lw

where

l is the length

w is the width

h is the height

If base is twice its width, then l = 2w

Substitute

10 = w(2w)

10 = 2w²

5 = w²

w = √5 m

Since l = 2w

l = 2√5m

Hence the length and width of the rectangle is 2√5m and √5m respectively

Learn more on volume of rectangle here: brainly.com/question/4062480

#SPJ1

3 0
2 years ago
An industrial psychologist consulting with Lara music stores knows that the average number of complaints management receives eac
xeze [42]

Answer:

Step-by-step explanation:

H0 : μ ≥ 6

H1 : μ < 6

Test statistic :

n = 20

Sample Mean, x = 3

σ = 1.5

Test statistic = (x - μ) ÷ σ/sqrt(n)

Test statistic = (3 - 6) ÷ 1.5/sqrt(20)

Test statistic = - 3 / 0.3354101

Test statistic = −8.944271

Since, sample size is < 30 ;

Obtaining the Critical value using the from T;

Tcritical at 0.05, df = 19 = - 1.729

Tstatistic < Tcritical

−8.944271 < - 1.729

Hence, we reject the Null:

We can conclude that there is significant evidence that the number of complaints received by Lara music store is different from number of complaints received by music stores in general.

3 0
3 years ago
Hello I hope you having a good day what is 163 dived by 859
aleksley [76]

Answer:

Exact Form:

163 /859

Decimal Form:

0.18975552 969

Step-by-step explanation:

Reduce the expression, if possible, by cancelling the common factors.

Please give me Brainliest

3 0
3 years ago
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