x² + 4 = 55
What is x

Answers

Answer 1

Answer:

7.1414284285

answer...


Related Questions

Shelly is tying to improve her running time for track race. She ran the first race 43.13 seconds. Her time was 43.1 seconds in the second race and 43.07 seconds in the third race. If this patteren continues, what will Shelly's time be in the fourth race?

Answers

Answer:

42.77

Step-by-step explanation:

The pattern is taking away 0.3. 43.07 minus 0.3 equals 42.77

-3(x-14) + 9x = 6x + 42

Answers

Answer:

All real numbers are solutions.

Step-by-step explanation:

Let's solve your equation step-by-step.

−3(x−14)+9x=6x+42

Step 1: Simplify both sides of the equation.

−3(x−14)+9x=6x+42

(−3)(x)+(−3)(−14)+9x=6x+42(Distribute)

−3x+42+9x=6x+42

(−3x+9x)+(42)=6x+42(Combine Like Terms)

6x+42=6x+42

6x+42=6x+42

Step 2: Subtract 6x from both sides.

6x+42−6x=6x+42−6x

42=42

Step 3: Subtract 42 from both sides.

42−42=42−42

0=0

Answer:

all real numbers

Step-by-step explanation:

-3 (x - 14) + 9x = 6x + 42

-3 (x - 14) + 9x - 6x = 6x - 6x + 42

-3 (x - 14) + 3x = 42

-3 (x) - 3 (-14) + 3x = 42

-3x + 42 + 3x = 42

3x - 3x + 42 = 42

42 = 42

what is the measurement of

Answers

Answer:

B = 24 degrees

Step-by-step explanation:

It should have 180 total

180 - 61 = 119

Solve for z.
6z+ 3 - 4z = 9

Answers

Answer:

z = 3

Step-by-step explanation:

One of the legs of a right triangle measures 6 cm and its hypotenuse measures 11 cm.
Find the measure of the other leg. If necessary, round to the nearest tenth.

Answers

Answer: 12.53 cm

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]h^2=x^2+y^2\\ \\ x^2=h^2-y^2\\ \\ x=\sqrt{h^2-y^2}\\ \\ x=\sqrt{121-36}\\ \\ x=\sqrt{85}[/tex]

The average mark scored by 29 students in a science test was 56%. John was sick, so he sat the test late and scored 71%. Including John's score, what was the new mean mark?

Answers

Answer:B

Step-by-step explanation:

If a Customer places an order for $47.36 and it’s late, then how much would the customer be refunded if the refund is 20% on the total

Answers

$9.47

I just multiplied the total by the refund percentage to get that number. It’s just like finding a tip.

The amount of the money refunded to the customer will be $9.472.


What is the percentage?

The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.

Given that a Customer places an order for $47.36 and it’s late. The refund is 20% of the amount.

The refunded amount will be calculated by multiplying the total amount by the percentage of the refund,

Refund = $47.36 x 0.2

Refund = ( $9.472 )

Therefore, the refunded amount will be $9.472.

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What is angle D equal??

Answers

63% Please Give me Brainlyest

when the denominators are the same, the fraction with the _____ is the largest fraction ​

Answers

Bigger numerator

Means bigger fraction

When the denominators are the same, the fraction with the bigger numerator is the largest fraction .​

What is the fraction?

In mathematics, a fraction is represented by a number that identifies a portion of a whole. A fraction is a component or section taken from a whole, which can be any number, a certain amount, or an object.

It is simpler to identify the larger or smaller fraction when comparing fractions with the same denominator. We may easily find the fraction with the larger numerator by first determining whether the denominators are the same.

Therefore, when the denominators are the same, the fraction with the bigger numerator is the largest fraction .​

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Hey Can someone help me please

Answers

x= 2 ; you can use the fórmula for axis of symmetry , which is -b/2(a)

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Write each of the following numerals in base 10. For base​ twelve, T and E represent the face values ten and​ eleven, respectively.
a. 231 five
b. 11001 two
c. 12T twelve

Answers

142 in base 5 means 1(52) + 4(51) + 2(50) = 25 + 20 + 2 = 47

11011 in base 2 means 1(24) + 1(23) + 0(22) + 1(21) + 1(20) = 27

39T in base 12 means 3(122) + 9(121) + 10(120) = 550

Y = 0.4x^2 + 2x + 2.5 Help!

Answers

Answer:

Step-by-step explanation:

Are you trying to find the x-intercepts?

Pythagorean Theorem:

x = [-2 ±√(2^2-4(0.4)(2.5)]/[2(0.4)] = -2.5

Answer: I’m positively sure that it’s -2.5

2. Mr. C'Quence just wrote a 35-problem test for his math class. He wants some of the problems to be
worth two points each while the rest will be worth three points each. If the test must be worth a total of
100 points, set up a system of equations to determine how many of each type of problem Mr. C'Quence
should have on his test?
Define the variables:
Write the system (but do not solve):
I

Answers

Hdjdjjdksjsjsjsnsmlspskskss

1:13 scale model bobble head of you, how tall would it be in centimeters if you are 170.18 cm?

Answers

Answer:

13,1cm

Step-by-step explanation:

1 : 13

1 : 170,18cm

170,18cm divided 13 : 170,18cm

13,090cm : 170,18cm

or

13,1cm : 170,18cm

bobble head is

13,1cm

cmiiw!

What is the answer to 30% of 50?

Answers

Answer:

15

Step-by-step explanation:

Use the x method or cris cross

hELp mEEEEEEE pLssssssss

Answers

Answer:

its #3

Step-by-step explanation:

hope this helps

it's 3

Step-by-step explanation:

Hope it is correct

Please help. I suck at geometry

Answers

Answer:

Complementary angle is 90 degree and supplementary angle is 180 degree

A person trying to gain access to a bank vault must pass through a series of three security doors. If an attempt to pass through a door is a failure, then the person will not make any further attempts. Let P denote a successful pass and F denote a failed pass. What is the sample space for this random experiment

Answers

Answer:

Sample space is [tex]\{F,PF,PPF,PPP\}[/tex]

Step-by-step explanation:

Number of security doors = 3

Let P denote a successful pass and F denote a failed pass.

Sample space refers to a set of all possible outcomes.

If the first attempt to pass through a door is a failure, then the outcome is F.

If the second attempt to pass through a door is a failure, then the outcome is PF.

If the third attempt to pass through a door is a failure, then the outcome is PPF.

If the fourth attempt to pass through a door is a failure, then the outcome is PPP.

Sample space is [tex]\{F,PF,PPF,PPP\}[/tex]

help! answer options included

Answers

Answer:

Y = [-6  6 6 -6]

Step-by-step explanation:

From the given matrices

If X - 2Y  = Z

b - 2c = a ... 1

a -2d = c ...2

4+2a = 16.... 3

a + 2b = b .... 4

From3 ;

2a = 16-4

2a = 12

a = 6

From 4;

a + 2b - b = 0

a+b = 0

a = -b

6 = -b

b  = -6

From1;

b - 2c = a

-6 - 2c = 6

-2c = 12

c = -6

also

a - 2d = c

6-2d = -6

-2d = -6-6

-2d = -12

d = 6

Hence the matrices Y = [-6  6 6 -6]

How much money do you need to deposit monthly into a college fund for
your new baby in order to have $150.000 by the time they are 18 years
old if you earn 6% annual interest?

Answers

Answer:

im guessing its supposed to be 150,000 so it would be $1,656.25 per month

Step-by-step explanation:

Which graph shows y = 2x - 1/2?

Answers

Answer:

Third down

Step-by-step explanation:

2x = slope

-1/2 = y-intercept

It’s the third one down

-u/5=-27 help pls due today

Answers

Answer:

u = 135

hoped i helped u

Step-by-step explanation:

u = 135 ...........................

-8m – 6(1 - 4m) = -102

Answers

Answer:

Step-by-step explanation:

Here you go mate

Step 1

-8m – 6(1 - 4m) = -102  Question

Step 2

-8m – 6(1 - 4m) = -102  Remove parenthesis

16m-6=-102

Step 3

16m-6=-102  add 6 to sides

16m=-96

Step 4

16m=-96  Divide sides by 16

Answer

m=-6

Hope this helped

Answer:

Step-by-step explanation:

I can help

Step 1

-8m – 6(1 - 4m) = -102  Simplify

Step 2

-8m – 6(1 - 4m) = -102  Add 6 to the sides

16m=−96

Step 3

16m=−96  Divide the sides by 16

Answer

m=-6

Hope this helps

Let W represent the number of attempted experiments to get one experiment that is not successful.

The random variable W has a geometric distribution with mean 4 and standard deviation 3.5. Which of the following is the best interpretation of the standard deviation?

Answers

A single value randomly selected from the distribution of W will vary 4 by 3.5 attempted experiments. (collegboard)

Answer:

Values of  W  typically vary from 4 by about 3.5 attempted experiments, on average.

Step-by-step explanation:

Pls Answer The following Question Given

Answers

Answer:

11/15 > 4/7.

Step-by-step explanation:

11/15 = 0.7333.....

4/7 = 0.5714....

Obviously from this, we can conclude that 11/15 is greater than 4/7.

So, the answer is 11/15 > 4/7.

Answer:

a)>

hope it's helpful ❤❤❤

THANK YOU.

Determine the simple interest when: principal: $890, interest rate: 4.25%, time: 2 year

Answers

$75.65

explaination ::

principle (p) = $890

rate (r) = 4.25%

time (t) = 2 years

simple interest = (p × r × t)÷100 = (890 × 4.25 × 2)÷100 = $75.65

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2. A spy uses a telescope to track a rocket launched vertically from a launch pad 6 km away. The rocket travels upwards at a velocity of 21.6 km per minute. Find the rate of change of the distance between the spy and the rocket when the rocket is 8 km in the air. Answer: 17.28 km/mim

NEED HELP ASAP

Answers

Answer:

The rate of change in distance between the spy and the rocket is 10.8 km/min,

or about 180 m/sec.

Step-by-step explanation:

At "Time=0" the rocket is 6km from the spy.

The rocket travels vertically 8km in about 0.37 minutes, calculated by 8km÷21.6km/min.

At that point, the rocket is 10 km from the spy., calculated by 6²+8²=10²

The difference is 4 kiilometers over 0.37minutes, about 22.2 seconds

Divide Distance by Time to get Rate:

4km/0.37min = 10.8 km/min

That is about 180 meters per second.

1/3x = 6
solve equation mentally

Answers

Answer:

x=18

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

Children 4 years old or younger can ride the train for free. Write an inequality that expresses who can ride the train for free.

Answers

x<=4

x is less than or equal to four

children less than or equal to four can ride the train for free

A DVD originally costs $16. The discounted price is $12. What is the
percent change?

25% increase
25% decrease
18.75% increase
18.75% decrease

Which one of those answers?
And explain?

Answers

Answer:

The answer to your question is 25% decrease.

Answer:

25% decrease

25% of 16 is 4

Make it brainliest and give it heart ty

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