Mathematics High School

How do i slove for x2 + 19 = 3

Answers

Answer 1

Answer:

x = ± 4i

Step-by-step explanation:

x^2 + 19 = 3

Subtract 19 from each side

x^2 +19-19 = 3-19

x^2 = -16

Take the square root of each side

sqrt(x^2) = sqrt(-16)

x = sqrt(-1*16)

x =sqrt(-1) * sqrt(16)

We know that the square root of -1 is the imaginary number i

x = ± 4i

Related Questions

what is the discount price for 52% of 210?

10,920

1,092

158

109.20

Answers

Answer:

the answer is 109.20

I need help with this important question it's for a important grade

Answers

Answer:

Step-by-step explanation:

29+42+61+?=180

add (29,42,61) that gives you 132

now 132-180=48

48 rounded to the nearest tenth is 50 sooo....

X= 50

The area of a parallelogram is 16 cm. One side Height is 4 cm. What is the length? options are:- 5 cm none of these 4cm 8cm

Answers

Answer: 4cm

Step-by-step explanation:

The area of a parallelogram is calculated by multiplying the height by the length:

Area = Height * length

Assume the length is x, substituting values would make the formula:

16 = 4 * x

4x = 16

x = 16/4

x = 4 cm

pls help been waiitng for 2 hours now..

Answers

Answer:

(5,3)

Step-by-step explanation:

you would move 3 to the right and 2 down

In ΔOPQ, the measure of ∠Q=90°, the measure of ∠O=84°, and OP = 2.9 feet. Find the length of PQ to the nearest tenth of a foot.

Answers

Answer:

x=2.8841≈2.9 feet

Step-by-step explanation:

what does 4m^2 +5m if m=-2 equal?

Answers

Answer:

-26

Step-by-step explanation:

tell me if im right and please brainliest

PLEASE ANSWER HURRY!!

Answers

Answer:

The answer is B (4,10).

Step-by-step explanation:

Choose values for horizontal and vertical translation to move triangle ABC. Use the tool to translate the figure in both the x and y directions. y Horizontal Translation 4 C 2 Vertical Translation Which statements are true about the image? The triangle flipped upside down. The sides stayed the same length. The angles stayed the same size. The triangle completed a quarter turn. -2. Reset -2 A B -48.

Answers

Answer:The sides stayed the same length

The angles stayed the same size

Step-by-step explanation:

Identify the translations.

The orange triangle, A, is the pre-image.

The pre-image moved

✔ 5

units horizontally to form the purple triangle, B.

The pre-image moved

✔ 4

units vertically to form the green triangle, C.

If you are going 250 miles somewhere and it cost 75 cents per mile how much money is that

Answers

Answer:

$187.50

Step-by-step explanation:

Set up an equation

250 m/$x = 1 m/$0.75

Cross multiply

250 miles × $0.75 = 1x

$187.50 = x

what is T/8 = -4 solve for T

Answers

Answer:

The answer is -32

Step-by-step explanation:

Multiply both sides by 8 to cancel 8 as the denominator and you have T = -32

-9-5+10d= please help

Answers

Answer:

-14+10d

Step-by-step explanation:

-9-5+10d

add like terms

-14+10d

Answer:

If you're trying to simplify it the answer is -14 + 10d

87875696 X 785

plz help.

Answers

Answer:

68982421360

Step-by-step explanation:

Answer:

68982421360

Step-by-step explanation:

just do long multiplication

please help me !!! i'll give brainliest

Answers

Answer:

a. root (x^2 + 64)

Step-by-step explanation:

(8^2 + x^2) = y^2

If you root both sides,

y = root (x^2 + 64)

Question 5. What is the value of E? How do you know?

Answers

Answer:

74 degrees because E is alternate interior angles with the other 74 degrees angle.

Step-by-step explanation:

convert 5000 mm = ____ cm

Answers

Answer:

it's 500 cm

HOPE THIS HELPS

Step-by-step explanation:

Answer:

500 cm

Step-by-step explanation:

i did the math

PLS HELP ME I WILL MARK!!!!~ don't need to show work

Answers

I’m not so sure, but I think it might be:
f(x)=x-1
Sorry if wrong

Answer:

The answer is: 2x+1f(x)=

Step-by-step explanation:

The standard form for linear equations in two variables is Ax+By=C. For example, 2x+3y=5 is a linear equation in standard form. When an equation is given in this form, it's pretty easy to find both intercepts (x and y). This form is also very useful when solving systems of two linear equations.

What is the area of this parallelogram?

4.9 cm²

12.25 cm²

17.15 cm²

24.01 cm²

PLS HELP!! I WILL GIVE BRAINLYIST

Answers

Answer:

The answer is 17.15! Brainliest pls :D

Answer:

C, 17.15

Step-by-step explanation:

4.9*3.5 = 17.15

barbra has two cherry pies.She cuts each pie into quarters.How many slices of cherry pie does barbra have

Answers

Ok so you have 2 pies.

You can cut into quarters which is 4 slices in 1 pie.

Than you can do 4 slices x 2 pies which means you have 8

determine the missing angle

Answers

Answer:

106°

Step-by-step explanation:

These angles are alternate interior, therefore they are equal to each other.

PLEASE HELP THISIS GETTING TIMED

Answers

Answer:

30/34 =

Step-by-step explanation:

What are the coordinates of V' when (T<-3, 1> ° D.)(TUV) of T(-7,-6), U(-8, 3), V(2, 1)?

Answers

Answer:(332)

Step-by-step explanation:

pls help i’ll love u forever

Answers

The answer would be 10.2418

Please help I would really appreciate it!!!!

Answers

Answer:

the answer is I'll either go with c or d

Free Cookie or brainliest

Answers

Answer: point C

Step-by-step explanation: the square root of 68 is 8.246and it keeps going with other digits

Answer:

C. Point C,

Step-by-step explanation:

The squre root of 68 is 8.24 and most likely to be 8 so letter C.

Thank you!!

Heather bought a CD on sale for $11
and a book for $14. The sales tax rate
is 5%. How much tax did she pay for
both items?

Answers

Answer:

Heather paid $26.25 for both items

Please help im desperate :)

Answers

Answer:

Step-by-step explanation:

because it is going in a round shape

Solve the trigonometric equation for all values: -7 < or equal to x < 7 Question: Cot 1/2x-1=0

Answers

Answer:

x =90

Step-by-step explanation:

Cot 1/2x-1=0

Add 1 to both sides

Cot 1/2x = 0+1

Cot 1/2x = 1

1/tan1/2x = 1

Tan 1/2x = 1

1/2x = arctan1

1/2x =45

x = 45×2

x = 90

Hence the value of x is 90

A lorry drives for 4 hours at a speed of 45 mph. Calculate how far it travles

Answers

Answer:

180 miles

Step-by-step explanation:

Distance = speed x time

45 x 4 =180miles

distance = 180
distance = speed x time
distance = 4 x 45

Help please will mark

Answers

Answer: 6.7
Have a good day :D

Answer 6.7
Bye bye :)

when the short hand of a clock moves through 12 o clock to 3 o'clock what angle is formed

Answers

Answer:

90* angle or also called a right angle.

Step-by-step explanation:

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