Solve for x 4x+3 2x+9

Answer:

slope= -2

Step-by-step explanation:

Answer:

We accept H₀, we don´t have enough evidence to claim that the procedure improves the tensile strength above the peviuos average

Step-by-step explanation:

Information:

μ  = 2150

Sample size    n  = 16

Sample mean   x  =  2160

Sample standard deviation    s = 30

a) Test Hypothesis

Null Hypothesis                                    H₀         x = μ

Alternative Hypothesis                         Hₐ         x > μ

b) If Tensile strength is  approximately normal distribution we should use t-student statistic for testing the above hypothesis.

t(s) = ??    with  df = n - 1      df  =  15

c)  t(s)  =  ( x - μ ) / s/√n

t(s)  = ( 2160  -  2150 ) / 30/√16

t(s)  = 10*4 / 30

t(s) = 1,33

d) In t-student we look for p-vale for 1,33 and  df = 15

p-value = 0,1

e) If the level of significance is 0,05, then    α/2 = 0,025

we compare p-value and level of significance

p-value     0,1 > 0,025

Then p-value is bigger than the significance level, we should accept H₀

Answer:

i think there is no solution

Answer:

She need 3 packs of balloons

Answer:

[tex] 15,260.4 \: {in}^{3} [/tex]

Step-by-step explanation:

Radius of candle = 3 inches

Height of candle = 2 inches

Wax needed to make one candle = Volume of one cylindrical candle

[tex] =\pi r^2 h[/tex]

[tex] =3.14(3)^2 (2)[/tex]

[tex] =56.52\: in^3 [/tex]

Volume of wax needed to make 270 candles

[tex] = 270 \times wax\: needed \: to\:make \: one \: candle \\ \\ = 270 \times 56.52 \\ \\ = 15,260.4 \: {in}^{3} [/tex]

Answer:

There might be more to this problem that not included?

Based on the question written, J and Q would be anything that is mathematically supported.

I could a virtually endless combination, that's why I think we may be missing part of the question.

Here are some solutions:

J=11, Q = 6   11-5=6

J=12, Q= 7   12-5=7

J= 7, Q = 2   7-5=2

J = 162, Q = 157  162-5=157

Answer:

The answer is b.

Step-by-step explanation:

Answer:

a) 1:48000 b)1.6128km

Step-by-step explanation:

From the passage given, it can be deduced that the thing that surprised Monique when Priya came was B. Priya is by herself.

From the information given in the passage, it can be deduced that Monique was a cool person who doesn't like noise.

She was alone with her bottle of water when Priya came to her. Normally, Priya was the star of the girl's swim team and always had people around her. On this occasion, she was alone by herself and this surprised Monique.

Learn more about passages on:

https://brainly.com/question/25950911

Answer

Step-by-step explanation:

priya is by herself

Answer:

y = 3cos(81x)

Step-by-step explanation:

Hello!

Here is the foundational equation to find sine and cosine:

y = A sin(B(x + C)) + D

Any cosine function can be written as a sine function. y = A sin(Bx) and y = A cos(Bx). The number, A, in front of sine or cosine changes the height of the graph. The value A (in front of sin or cos) affects the amplitude (height). B is the period by which the width of the wavelengths are measrured. C is known as the phase shift, which is positive to the left on graph. D is the vertical shift of function.

The amplitude changes the heaight of the cosine function by 3 units. The period is indicated as 81 and , but usually we must first use the equation that is the usual given: period = [tex]\frac{2\pi }{|B|}[/tex] . B must always have an absolute sign to have a psotive value. In this case, the period was given to us.

So, the final equation looks like this:

y = 3cos(81x)

Hope this helps!

Answer:

Step-by-step explanation:

7/4      is not the answer

Find how many 1/4 inches are in 3 3/4 inches:

There are four 1/4 inches per inch.

3 inches x 4 = 12, there are twelve 1/4 inches in 3 inches and there are three 1/4 inches in 3/4 inch.

So there are a total of fifteen 1/4 inches in 3 3/4.

Now multiply the total 1/4 inches by 2 miles.

15 x 2 = 30 miles total.

Answer:

d= +3

Step-by-step explanation:

1st term = -19

2nd term = -16

d = 2nd - 1st

d= -16-(-19)

d = +3

The median of the set of data with values 10,12,15,16,18,20 is 15.5.

The median is one of the measures of central tendency.

The median is the middle value of a data set.

When the data set is even, the median is found by adding the two middle values and dividing by 2.

10,12,15,16,18,20

Total value = 91

Median = 15.5 (15 + 16)/2

Thus, the median of the set of data with values 10,12,15,16,18,20 is 15.5.

Learn more about the median at https://brainly.com/question/26151333

#SPJ1

Answer:

46.278cm

Step-by-step explanation:

(π+2)r

=πr+d

=9π+18=46.278cm

Answer:b c

Step-by-step explanation:

did it

Answer:

The values of x are +8 and -8

Step-by-step explanation:

1. The given equation is :

[tex]3x^2 - 192 = 0[/tex]

We need to find the value of x.

It can be done as follows :

[tex]x^2=\dfrac{192}{3}\\\\x^2=64\\\\x=\pm 8[/tex]

So, the values of x are +8 and -8.

Answer:

9

Step-by-step explanation:

group like terms

27=3y

27/3=y

9=y

Answer:

y=9

Step-by-step explanation:

2y+27=5y

-2y       -2y

27=3y

3     3

9=y

The answer is

1/12

Explanation:

In order to divide

1/3 by 4

1st: you must find the reciprocal of the

denominator, which is

1/4

2nd: Then you multiply

1/3

by the reciprocal

So

1/3 divided by 4

will now be

1/3 x 1/4= 1/12

By definition of tangent,

tan(2θ) = sin(2θ) / cos(2θ)

Recall the double angle identities:

sin(2θ) = 2 sin(θ) cos(θ)

cos(2θ) = cos²(θ) - sin²(θ) = 2 cos²(θ) - 1

where the latter equality follows from the Pythagorean identity, cos²(θ) + sin²(θ) = 1. From this identity we can solve for the unknown value of sin(θ):

sin(θ) = ± √(1 - cos²(θ))

and the sign of sin(θ) is determined by the quadrant in which the angle terminates.

We're given that θ belongs to the third quadrant, for which both sin(θ) and cos(θ) are negative. So if cos(θ) = -4/5, we get

sin(θ) = - √(1 - (-4/5)²) = -3/5

Then

tan(2θ) = sin(2θ) / cos(2θ)

tan(2θ) = (2 sin(θ) cos(θ)) / (2 cos²(θ) - 1)

tan(2θ) = (2 (-3/5) (-4/5)) / (2 (-4/5)² - 1)

tan(2θ) = 24/7

Answer:

33.51 in^2

Step-by-step explanation:

Find the area of the circle:

A = πr^2

A = π * 8^2

A = 64π = 201.06 in^2

Find the area of the 60 deg slice:

A * 60/360 = 33.51 in^2

Leave a thanks and mark brainliest if this helped

Leave a thanks and mark brainliest if this helped

Answer:

3237342324=4234463284324234324-34234327432423423+2343242879485326556252434=7

Step-by-step explanation:

Answer:

A) 192

Step-by-step explanation:

20% = 0.2

240(0.2) = 48

This means $48 will be taken from the original price so:

240 - 48 = 192

Answer:

22

Step-by-step explanation:

2x-13=9

2x-13-9=0

2x-22=0

2x=22

x=11

Answer:

$20000

Step-by-step explanation:

6*10^12/ 300 million

Answer: $507.66

Step-by-step explanation:

408.68 + 98.98 = 507.66

Answer:

3 option

Step-by-step explanation:

Answer:

2s

Step-by-step explanation:

Twice means multiplicaiton of 2

So the answer is 2s

Answer:

volume of aquarium =l×b×h=5×1×8=40ft³

volume of aquarium in gallons=

40ft³×7.5gallons/ft³=300galloons

Answer:

There is a zero percent that you will roll a number less than one but a 100% chance of rolling a number less than 7.

Step-by-step explanation: