Bx=3y-9 what is the value of b

Answer:

4

Step-by-step explanation:

You can divide both numbers by four and get an even answer

Answer:

4

Step-by-step explanation:

Answer:

(x - 8) -4

Step-by-step explanation:

Answer:

I think it's 18

Step-by-step explanation:

because I'm looking at 12/8 to be a ratio, that means that the size of the bigger figure had decreased by 12/8 or 1.5

then I divided the 27 by 1.5 to get the area of the small one which was 18.

Answer:

look at the picture i have sent

Answer:

[tex] \displaystyle \angle4 = {108}^{ \circ} [/tex]

Step-by-step explanation:

we are given a triangle

and we want to figure out the missing exterior angle of the triangle

in order to so

remember

the straight line theorem

therefore we get:

[tex] \displaystyle {72}^{ \circ} + \angle4 = {180}^{ \circ} [/tex]

cancel 72° from both sides:

[tex] \displaystyle \angle4 = {108}^{ \circ} [/tex]

recall that,

if a side of a triangle is extended then exterior angle so formed equal to the sum of the two opposite interior angles

so we acquire:

[tex] \displaystyle {51}^{ \circ} + {57}^{ \circ} = \angle4 [/tex]

simplify addition:

[tex] \displaystyle \angle4 = {108}^{ \circ} [/tex]

Answer:

30

Step-by-step explanation:

30/3 = 10

30/10 = 3

30/15 = 2

Hope this helps!

Answer:

Around 0.40

Step-by-step explanation

If she doubles the gift every year, do 18x2=36, 36 rounds to 40 or 0.40.

The total of all the gifts on the girl's 18th birthday given from her grandma for this considered case is  evaluated as 2621.43 dollars

Lets suppose the geometric sequence has its initial term is [tex]a[/tex], multiplication factor is  r, then, its sum is given as:

[tex]S_n = \dfrac{a(r^n-1)}{r-1}[/tex]

(sum till nth term)

The sequence would look like [tex]a, ar, \cdots, ar^{n-1},\cdots[/tex]

For this case, we are specified that:

That shows that the gift amounts each year will form a geometric sequence where a = 1, and r = 2 (as amounts are doubled).

The gift amounts would look like:

[tex]\\1, 2, 4, \cdots\\or\\1, 2\times 1, 2^2 \times 1, \cdots[/tex]

We have to find these terms' sum till 18th term(18th term is the gift of her 18th birthday).

Thus, we have: n = 18, a = 1, and r = 2.

The sum will be:

[tex]S_n = \dfrac{a(r^n-1)}{r-1} = \dfrac{1(2^{18}-1)}{2-1} = 2^{18} - 1 = 262143 \: \rm cents[/tex]

There are 100 cents in 1 dollars,

Thus, 1 cent = 0.01 dollars,

and thus, 262143 cents form 2621.43 dollars.

Thus, the total of all the gifts on the girl's 18th birthday given from her grandma for this considered case is  evaluated as 2621.43 dollars

Learn more about sum of terms of geometric sequence here:

https://brainly.com/question/1607203

Answer:

x < -2

Step-by-step explanation:

subtract 6 from each side

-3x > 6

divide both sides by -3

x < -2

(with inequalities you must flip the sign if you divide by a negative number)

Answer:

1. \{(-3, 4), (-8, 0), (3, -8), (-3, -4)\}{(−3,4),(−8,0),(3,−8),(−3,−4)}

Step-by-step explanation:

The x values are repeating

Answer:

64

Step-by-step explanation:

Answer:

Solution given:

r=4in

h=4in

surface area=2πr(r+h)=2π*4(4+4)=64π or201.06ft²

Volume=πr²h=π*4²*4=64π or 201.06ft³

Answer:

Domain = {x : x ≠ 4 , -4}  or  (-∞ , -4) ∪ (-4 , 4) ∪ (4 , ∞)

Step-by-step explanation:

TO FIND :-

SOLUTION :-

Domain of a function is a value for which the function is valid.

The function [tex]C(x) = \frac{x + 9}{x^2 - 16}[/tex] is valid until the denominator is 0.

So make sure that the denominator must not be 0.

[tex]=> x^2 - 16 > 0[/tex]

Find the values of x for which the denominator becomes 0. To find it , you'll have to solve the above inequality.

[tex]=>x^2 - 16 + 16 > 0 + 16[/tex]

[tex]=> x^2 > 16[/tex]

[tex]=> x > \sqrt{16}[/tex]

[tex]=> \boxed{x > 4} \: or \:\boxed{x > -4}[/tex]

We can say that 4 & -4 can't be domains because these values will make the function undefined.

Now try putting values of x such that -4 < x < 4. You'll observe that the function will be valid for all those values of x between -4 & 4.

CONCLUSION :-

The function will be valid for any value of 'x' except 4 & -4. So in :-

Interval notation , it can be written as → (-∞ , -4) ∪ (-4 , 4) ∪ (4 , ∞)

Set builder notation , it can be written as → {x : x ≠ 4 , -4}

Answer:

√115

Step-by-step explanation:

14²= 9² + x²

x= √14²-9² = √115

Step-by-step explanation:

using Pythagores theorem

h²=p²+b²

14²=p²+9²

p²=196-81

p=√115

p=10.72

Answer:

x=7.5

Step-by-step explanation:

To cancel out the sin function we need to mulitplly it by sin⁻¹ (you can usually access this button if you press 2nd-->sin)

so sin⁻¹(.5)=30

30=4x

x=7.5

The correct set of inequalities are - [tex]3x^{2} > y[/tex] and    [tex]y^{2}+6 > x[/tex].

We have three times the square of a number is greater than a second number and the square of the second number increased by 6 is greater than the first number.

We have to find which system of inequalities mentioned represents this situation.

An inequality is mathematical relation which compares two or more mathematical expressions.

In the question, it is given that -

Three times the square of a number is greater than a second number. Let the first number be [tex]x[/tex] and the second number be [tex]y[/tex].

According to question -

[tex]3x^{2} > y[/tex]

and - the square of the second number increased by 6 is greater than the first number. We can write this statement mathematically as -

[tex]y^{2}+6 > x[/tex]

Hence, the correct set of inequalities are - [tex]3x^{2} > y[/tex] and    [tex]y^{2}+6 > x[/tex]

To solve more questions on inequalities, visit the link below -

https://brainly.com/question/20383699

#SPJ2

guessing

360 - 310 = 50

-tan(50)

Answer:

y=2x^2-4x+1

Step-by-step explanation:

i hope that’s right :)

Answer: 5

Step-by-step explanation:

hope this help get a A

Answer:

false

Step-by-step explanation:

adjacent angles should share a common arm and a common vertex. no arms are common and vertex of first angle is CAB whereas the vertex of second angle is DAE

Answer: false

Step-by-step explanation:

Adjacent angles are angles share the same vertex and the same common side. They are two angles that are right next to each other.

Answer:

B.

Step-by-step explanation:

Our landfills will not actually become towering mountains of trash, that's just a hyperbole used by the author to show the destructive impact that trash in large quantities can have.

Answer:

The 95% confidence interval for the population's mean length of vacation, in days, is (4.24, 4.76).

The 92% confidence interval for the population's mean length of vacation, in days, is (4.27, 4.73).

Step-by-step explanation:

We have the standard deviations for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 85 - 1 = 84

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 84 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.95}{2} = 0.975[/tex]. So we have T = 1.989.

The margin of error is:

[tex]M = T\frac{s}{\sqrt{n}} = 1.989\frac{1.2}{\sqrt{85}} = 0.26[/tex]

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 4.5 - 0.26 = 4.24 days

The upper end of the interval is the sample mean added to M. So it is 4.5 + 0.26 = 4.76 days

The 95% confidence interval for the population's mean length of vacation, in days, is (4.24, 4.76).

92% confidence interval:

Following the sample logic, the critical value is 1.772. So

[tex]M = T\frac{s}{\sqrt{n}} = 1.772\frac{1.2}{\sqrt{85}} = 0.23[/tex]

The lower end of the interval is the sample mean subtracted by M. So it is 4.5 - 0.23 = 4.27 days

The upper end of the interval is the sample mean added to M. So it is 4.5 + 0.23 = 4.73 days

The 92% confidence interval for the population's mean length of vacation, in days, is (4.27, 4.73).

Answer:

ito yung link o /fhytuewfxnopjbfw/ yan na po

Answer:

The height of a large block is of 12.1 inches and of a small block is of 7.7 inches.

Step-by-step explanation:

This question is solved using a system of equations.

I am going to say that:

x i the height of a large block.

y is the height of a small block.

Taylor uses 4 large blocks and 2 small blocks to make a tower 63.8 inches tall.

This means that:

[tex]4x + 2y = 63.8[/tex]

Simplifying by 2:

[tex]2x + y = 31.9[/tex]

So

[tex]y = 31.9 - 2x[/tex]

Natsumi uses 9 large blocks and 4 small blocks to make a tower 139.8 inches tall.

This means that:

[tex]9x + 4y = 139.8[/tex]

Since [tex]y = 31.9 - 2x[/tex]

[tex]9x + 4(31.9 - 2x) = 139.8[/tex]

[tex]9x + 127.6 - 8x = 139.8[/tex]

[tex]x = 12.1[/tex]

[tex]y = 31.9 - 2x = 31.9 - 2(12.1) = 7.7[/tex]

The height of a large block is of 12.1 inches and of a small block is of 7.7 inches.

Answer:

x = 0

Step-by-step explanation:

3(x - 2) + 15= -3(x - 3)

3x - 6 + 15 = -3x + 9

3x + 9 = -3x + 9

3x + 3x = 9 - 9

6x = 0

x = 0

Answer:

The answer should be 0.66

Step-by-step explanation:

[tex](9) {}^{2} = (5) {}^{2} + (x) {}^{2} \\ 81 = 25 + {x}^{2} \\ {x}^{2} = 56 \\ x = 2 \sqrt{14} = 7.4[/tex]

Step-by-step explanation:

We use tangent because it uses opposite over adjacent.

So,

tan 33 = x/46

or

46 * tan 33 = x

Type this into the calculator and you get around 29.87

Answer:

Yes. All the conditions for inference have been met.

Step-by-step explanation:

The conditions for inference are:

a) The sample must be random.  The selections of the 30 customers in each Grocery Store were not biased in any way.

b) The sampling distribution must be approximately normal.

c) The observations of the samples were independent.

d) Adequate of sample size.  30 customers represent an adequate sample

e) The variances are not known as they were disclosed in this case.

Answer:

5n + 1

Step-by-step explanation:

f(n) + g(n) is just 2n + 1 + 3n , adding the two functions together!

Those expressions combine to 5n + 1 :)