What is the positive solution to the equation 3x2 + 31 = 912
A 10.95
B 8.51
8.36
D 7.75
E 4.47

What Is The Positive Solution To The Equation 3x2 + 31 = 912A 10.95B 8.518.36D 7.75E 4.47

Answers

Answer 1

Answer:

E) 4.47

Step-by-step explanation:

3x²+31=91

3x²=91-31

3x²=60

x²=60÷3

x²=20

x=√20

x=4.47

Answer 2

Answer:

4.47

Step-by-step explanation:

the only rational answer for this is 4.47 because once you solve as much as you can, you should end up with a whole number multiplied by a square root. the decimal form of that  number is 4.47


Related Questions


Expand and simplify (2x + 5)2

Answers

Answer: 4x +10

Step-by-step explanation:

you just need to multiply the inside of the brackets by the outside so 2x x 2 = 4x and 5 x 2 = 10

4x+10 you first multiply the inside aka the parentheses then times 2

A carton of milkshake comped with 25% extra free. A normal size carton is 320ml calculate the volume of milkshake in the larger carton. find 25% of 320

Answers

Step 1: Our output value is 350.

Step 2: We represent the unknown value with $x$.

Step 3: From step 1 above,$350=100\%$.

Step 4: Similarly, $x=25\%$.

Step 5: This results in a pair of simple equations:

$350=100\%(1)$.

$x=25\%(2)$.

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

$\frac{350}{x}=\frac{100\%}{25\%}$

Step 7: Again, the reciprocal of both sides gives

$\frac{x}{350}=\frac{25}{100}$

$\⇒x=87.5$

Therefore, $25\%$ of $350$ is $87.5$

-8x=-64

find the variable

Answers

X is equal to 8 because -64/-8

Answer:

x=8

Step-by-step explanation:

8x/8 =64/8

x=2 6/2 3

x=2 6-3

x=2 3

x=8

math work please help wioth my math

Answers

Answer:

Figure A is scalene and probably obtuse.

Figure B is scalene and right.

Figure C is equilateral and acute.

Figure D is isosceles and right.

Figure E is isosceles and acute.

I am so sorry if I did a few wrong, I'm in Middle-School so I don't know much. I hope I get everything correct!

Answer: Figure A is scalene and probably obtuse.

Figure B is scalene and right.

Figure C is equilateral and acute.

Figure D is isosceles and right.

Figure E is isosceles and acute.

Step-by-step explanation:

can someone help me out it would be great if u can explain it.​

Answers

Answer:

113.1

Step-by-step explanation:

formula for circle is pie X radius^2


Trombonium has a half-life of 4200 years. How long will it take an object
composed of Trombonium to decay to 10% of its original mass

Answers

Answer:

420 years

Step-by-step explanation:

5|x + 11 + 7 = -38
Absolute value equations

Answers

the answer to this question is 32

A bookstore pays $28 for a copy of a textbook. The bookstore sells the textbook for $42. What is the percent markup on the textbook?

Answers

150 percent is the right answer!

Answer:

50%

Step-by-step explanation:

28×0.50= 14

14+28= 42

#CarryOnLearning

#MarkAsBrainliest

Find the product (4x - 3y)3

Answers

Answer:

12x - 9y

Step-by-step explanation:

According to the distributive property:

3(4x - 3y) =

3*4x - 3*3y =

12x - 9y

Answer:

12x - 9y you can't subtract different variables so multiply by them both by the left over constant and get the expression of 12x - 9y

Step-by-step explanation:

These two triangles are congruent. Which side of triangle PQR is the same length as AB?


RP or PR

QR or RQ

PQ or QP

Answers

Answer:

QR OR RQ

,,,,,,,,,,,,,,,,,

A toy is on sale for $28.50. If the tax rate is 6.25%, what is the total cost of the toy?

Answers

Answer:

30.28

Step-by-step explanation:

6.25 percent of 28.50 is 1.7815 1.78 rounded

28.50+1.78=30.28

Please help ill mark brainliest ✅✅✅✅

Answers

Answer:

i think y=3/4x-4.2

Step-by-step explanation:

Change the following fractions to Improper Fractions
1. 6 7/8
2. 5 6/9
3. 2 ¾
4. 1 4/5
5.7 2/3​

Answers

Steps for this:
-Multiply the denominator by the big number on the left. In the case of #1, you would multiply 6 by 8.
-Then add that product to the numerator. In #1, you would add 7 to 48.
-Finally, make the denominator the same as before. In this case, the denominator is 8.

1) 55/8
2) 51/9
3) 11/4
4) 9/5
5) 23/3
1. 55/8
2. 51/9
3. 11/4
4. 9/5
5. 23/3

Please Help Me I don’t understand

Answers

Answer:

The answer is 35 and here is why!

Step-by-step explanation:

It is because, m = 10

So, therefore 3.5m = 3.5*m = 3.5 * 10

Therefore, answer is 35.

Hope this helps.

The distance from Jason's house to school is 0.2 kilometer. What is this distance in meters?

Answers

Answer:

200 Meters!

Step-by-step explanation:

Answer:

200 m

Step-by-step explanation:

Distance from Jason's house to school = 0.2 kilometers

Converting into metres

0.2 km = 0.2 * 1000 m = 200 m

Hope it will help :)

01:44:56
Mustafa’s soccer team is planning a school dance as a fundraiser. The DJ charges $200 and decorations cost $100. The team decides to charge each student $5.00 to attend the dance. If n represents the number of students attending the dance, which equation can be used to find the number of students needed to make $1,500 in profit?

Answers

Answer: the equation would be 5n=1,500

Step-by-step explanation:

5 dollars per N (student) they need to make 1,500 so you need to find n

( to find N do 1,500 divided by 5 = 300

ok can you pls answer this

Answers

Answer:

25 + m = h

hope this helps!

Find the slopes form two points (-1, -2) and (3,-4)

Answers

4/6 or 2/3. Take x2 subtract it by x1. Then take y2 and subtract y1. Take the number you got from the x coordinate over the number you got from the y coordinate

Answer:

m=-1/2

Step-by-step explanation:

use y=mx+b

Find the length of an arc when the radius is 15 feet and the measure of the central angle 135 degrees. Round to nearest hundredth.

Answers

Answer:

35.34

Step-by-step explanation:

The formula for arc length is 2rФπ/360

2(15)(135)=4050

4050/360·π=35.34

A cookie recipe has 3 eggs for
every 1 dozen cookies.

How many eggs are in 3 dozen cookies?

Answers

Answer:

9 eggs

Step-by-step explanation:

1 dozen = 3 eggs

2 dozens = 6 eggs

3 dozens = 9 eggs

On a hot day, a soccer team drank an
entire 50 gallon cooler of water, and then
drank half as much again.
How much water did they drink?

I’ll give u brainliest if u show how you got the answer :D

Answers

Answer:

75 gallons

Step-by-step explanation:

50+(50/2)=

50+25= 75

(1/2 of 50 is 25)

Answer:

75 gallons

Step-by-step explanation:

Soooooo

they drank 50 gallons and then they drank half as much as they just drank

50/2 =25     -to get half of what they just drank

50 + 25 =75    - the original 50 gallons + half of that.

Triangle ABC has Vertices A(1, 2), B(3, 5), and C(4, 3). Using the origin as the center of dilation, Triangle ABC is dilated by a scale factor of 3 to create Triangle A ′ B ′ C ′ . Which statement can be used to justify that Triangle ABC is similar to Triangle A ′ B ′ C ′ ?

Answers

Answer:

AA ≅ AA postulate

Step-by-step explanation:

Given

[tex]A=(1,2)[/tex]

[tex]B = (3,5)[/tex]

[tex]C = (4,3)[/tex]

[tex]k = 3[/tex] --- scale factor

Required

Determine which statement that justifies the similarities between ABC and A'B'C'

When ABC is dilated by a scale factor of 3 to form A'B'C', the sides A'B'C are 3 times as large as the sides of ABC.

However, all three angles of both triangles remain the same. This is so, because dilation do not affect angles.

So, a statement that can be used to justify the similarities is:  AA ≅ AA

Which expresionnis equlavimnt to the expression below

Answers

4^2•4^4 = 4096

4^6= 4096

Answer: 4^6

Help me need the answer!!!!!

Answers

Answer:

Hope that helps

Step-by-step explanation:

b) two pairs that are solutions

x>=-4

x>=-4x<=1

-4<=x<=1

two pairs that are not solutions

-18<x<-13

HELP ME PLEASEEEEEEE

Answers

Answer:

Step-by-step explanation:

cos o = adjacent side /hypothenuse = OQ / PO

Can someone please answer this

Answers

x=9 I got that by multiplying 8 and 9 then subtracting 2

x/3=-7

find the variable

Answers

Answer:

x=−21

Step-by-step explanation:

Answer: x=-21

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

1 /3 x =−7

Step 2: Multiply both sides by 3.

3*( 1/3 x)=(3)*(−7)

x=−21

help i didnt learn anything the method is distance ​

Answers

Answer:

10 units

Step-by-step explanation:

Of course you have to graph the two points to find out the answer.

Then you count the units or squares to find out how far they are.

So it was basically 6 units to the right and 4 units up :)

Hope this helped plz mark brainliest :))

Given that ABCD is a parallelogram with diagonals intersecting at M. Segment PQ is drawn such that P lies on AB and Q lies on DC and it passes through M. Prove that PM is congruent to QM.​

Answers

Answer:

we thus have enough informnation to prove that the two triangles are congruent. Because of thism, one side of the triangles, Pm which is the congruent side to that of PQ must be equal as well and

PM = QM

Step-by-step explanation:

because it's a parrallelogram, Ad = BC and AB = DC.

P passes through both  AB and DC on a diagonal, angles created by P have oppoiste exterior angles of eachother.

the diagonals of AC create congruent angles at DMC and AMB and because P is cutting through them, the angles P cuts at DMQ and QMC are equal to that of AMP and PMB

that being said, we now see that the angles of APM triangle and AMC triangol are equal and because the diagonal of BD is is being cut by AC, which AD is parralel to BC  and AB to Dc, we know now that lines AM and MC are congruent

we thus have enough informnation to prove that the two triangles are congruent. Because of thism, one side of the triangles, Pm which is the congruent side to that of PQ must be equal as well and

thus PM = QM

The alternate interior angles formed by the parallel sides and a common

transversal are equal, such that ΔPBM and ΔQDM are congruent.

Correct response;

PM is congruent to QM  by CPCTC

How is the congruency of the segments determined?

The two column proof is presented as follows;

Statement [tex]{}[/tex]                                          Reason

ABCD is a parallelogram [tex]{}[/tex]                         Given

AC and DB are diagonals of ABCD [tex]{}[/tex]        Given[tex]{}[/tex]

M is the point of intersection of the diagonals [tex]{}[/tex] Given

MB ≅ DM, and AM ≅ CM;[tex]{}[/tex]  Properties of the diagonals of a parallelogram

∠PMB ≅ ∠DMQ [tex]{}[/tex]                                Vertical angles theorem

∠PBM ≅ ∠QDM [tex]{}[/tex]                                Alternate interior angles theorem

ΔPBM ≅ ΔQDM  [tex]{}[/tex]                               Angle-Side-Angle Congruency post.

PM ≅ QM [tex]{}[/tex]                                          CPCTC

ΔPBM is congruent to ΔQDM by Angle-Side-Angle congruency

postulate, given that they have two angles and an included side that are

congruent.

Therefore;

PM is congruent to QM by Corresponding Parts of Congruent Triangles are Congruent, CPCTC.

Learn more about congruency postulates here:

https://brainly.com/question/17003791

h+8g
g=5 and h=4
I am not very quick at these and I need an answer ASAP
please!!

Answers

Answer:

44

Step-by-step explanation:

4+8(5)

Multiply 8 by 5

4+40=44

Add 4 to the product (40) to get the final answer of 44

Remember PEMDAS

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