Nine less then a number is four

Answer:

3

Step-by-step explanation:

the y intercept is were x=0

Answer:

2

Step-by-step explanation:

cube root of 8

The price of the watch before the discount is calculated to be £24.44.

As the total price of the watch and a pair of trainers is £53. 55 and the price of the trainer before the discount was £38, we first calculate the price of the trainers after the discount as follows;

discount on a pair of trainers = 15/100 × 38 =  £5.7

cost of trainers after discount =  £38 - 5.7 =  £32.3

Now the price of the watch after the discount can be calculated by subtraction as follows;

price of watch after discount = total price - price of trainers after discount

price of watch after discount =  £53. 55 - £32.3

price of watch after discount = £21.25

Now the price of the watch before the discount can be calculated as follows;

price of watch before discount = £21.25 × 15/100

price of watch before discount = £21.25 + £3.1875

price of watch before discount = £24.44

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Answer:

she earned a total of 1190 in 5 years. I don't know if this helps.

Step-by-step explanation:

The rate of interest with the given parameters is 6.8%.

Given that, Principal =$3,500, time period =5 years and the amount =$4,690.

We need to find the rate of interest.

The interest rate formula helps in calculating the amount of money to be repaid towards a loan taken and the interest over the investment on fixed deposits, mutual funds, etc. The interest rate formula also helps in calculating the interest on credit cards. The interest rate for a given amount on simple interest can be calculated by the following formula,

Interest Rate = (Simple Interest × 100)/(Principal × Time)

Now, SI=Amount-Principal=4690-3500=1,190

rate of interest=(1,190×100)/(3,500×5)=6.8%

Therefore, the rate of interest with the given parameters is 6.8%.

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Answer:

1. NP

2. P

3. P

4. NP

Step-by-step explanation:

if this helped, Mark as brainliest, thank you

Answer:

Not polynomial for the first one.

second is polynomial.

third is polynomial.

and fourth is not polynomial.

Step-by-step explanation:

oh wait- yeah the other person is right too LOL

Answer:

The first equation is correct

Step-by-step explanation:

Answer: A

Step-by-step explanation:

Because he bought 6 items, x + y = 6.  Because a pencil costs 1 dollar and a pen costs 1.5 dollars, and Stefan spent 7 dollars, 1x+1.5y=7.

Hope it helps <3

Answer:

217

Step-by-step explanation:

1/2 * 12 * 7 = 42 this is one side of the pyramid

4x for all sides = 168

add the bottom which is just a square 7*7 = 49

168 + 49 = 217

Answer:500

explanchion: 1000/50=500

0.0439 is the mean and standard deviation of the sampling distribution of the sample proportions .

What is standard deviation in math?

Given that,

p = 0.74

1 - p = 1 - 0.74 = 0.26

n = 100

The mean of the sampling distribution of proportion is ,

 μP =    p = 0.74

The standard deviation of the sampling distribution  is ,  

  σp = σ\sqrtp ( 1 - p ) / n

 σp = σ\sqrt (0.74 * 0.26) / 100 = 0.0439

σp = = 0.0439

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Answer:

Step-by-step explanation:

Both:

1/4 x 1/4

1/16

Neither:

3/4 x 3/4

9/16

Answer:

The perimeter is 36.5 inches.

The area is 59.5 square inches.

The surface area is about  153.94 square inches.

Step-by-step explanation:

From the figure it is clear that,

Radius of cake = 7 in

Diameter of cake = 14 in

Height = 4.25 in

We need cut the cake vertically along its diameter to make 2 congruent parts.

So, cross section is a rectangle of length 4.25 in and width 14 in.

Perimeter of rectangle is

\(Perimeter=2(length+width)\)

\(Perimeter=2(4.25+14)\)

\(Perimeter=2(18.25)\)

\(Perimeter=36.5\)

The perimeter is 36.5 inches.

Area of rectangle is

\(Area=lengt\times width\)

\(Area=4.25\times 14\)

\(Area=59.5\)

The area is 59.5 square inches.

We need to find the surface area of the cake that is not frosted before the cut. It means the area of base.

Area of circle = \(\pi r^2\)

where, r is radius.

Area of circular base = \(\pi (7)^2\)

\(=49\pi \)

\(=153.93804\)

\(\approx 153.94\)

Therefore, the surface area is about  153.94 square inches.

Answer:

A is the answer they are all possible answers but the answer a is the best

Step-by-step explanation:

Answer:

All 3 of them

Step-by-step explanation:

A  B and C are correct

The correct choice is c. There is not convincing evidence because another confidence interval that uses a higher level of confidence might contain 0.

In hypothesis testing, when the confidence interval includes the value of interest (in this case, 0), it suggests that there may not be a significant difference between the proportions being compared. The confidence interval (-0.43, -0.02) contains the value 0, indicating that the difference in proportions may not be statistically significant.

Choosing a higher level of confidence would result in a wider confidence interval, making it more likely to include the value 0. Therefore, the evidence is not convincing enough to conclude a significant difference in the proportions of sales that are SUVs for the two stores.

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Answer:

Y=-1+2x/3

Step-by-step explanation:

Move all the terms that don't contain y to the right side and solve. Hope this helps!

Answer:

Step-by-step explanatio

Answer:

Bro I don't know. Maybe that teacher needs to pull that stick out of their butt.

Step-by-step explanation:

We know that:

In this case, by convention:

Then,

Answer:

3

Step-by-step explanation:

8*3=24

In linear algebra, the coordinate vector of a vector x relative to a basis b can be defined as the vector of coordinates with respect to the basis b. That is to say, it is a vector that is used to describe the components of x in terms of the basis b.

b = {b1, b2, b3}, where b1 = [1 0 4] , b2 = [5 1 18] , b3 = [1 -1 5] and x = [x1 x2 x3].In order to find the coordinate vector [x]b, we need to solve the system of equations:   x = [x1 x2 x3] = c1*b1 + c2*b2 + c3*b3where c1, c2, and c3 are the constants we need to solve for. Substituting the values of b1, b2, and b3, we get:x1 = 1*c1 + 5*c2 + 1*c3  x2 = 0*c1 + 1*c2 - 1*c3  x3 = 4*c1 + 18*c2 + 5*c3This can be written in matrix form as:    [1 5 1; 0 1 -1; 4 18 5] [c1; c2; c3] = [x1; x2; x3

]Using row reduction to solve the matrix equation above, we get:    [1 0 0; 0 1 0; 0 0 1] [c1; c2; c3] = [17; -5; -4]Therefore, the coordinate vector [x]b = [c1 c2 c3] = [17 -5 -4]. Hence, the final answer is [17 -5 -4].This is a total of 89 words.

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Step-by-step explanation:

that would form a triangle

using tan

TOA tan = opp/adj

tan38 degree = 20/x

tan 38 =0.7813

so 0.7813 = 20/x

=cross multiply

= 0.7813x =20

divide both sides by 0.7813

so 20/0.7813

= 25.5983

which is 3 to the nearest tenth

The height of the tree is 20.6 feet.

To solve problems of heights and distances, we use trigonometric ratios determining the given case by geometric shapes.

We are given the following information: John who is 5 ft. tall is standing at a distance of 20 ft. from a tree, and you measure the angle of elevation to be 38°. We are asked to find the height of the tree.

To solve the problem, we will use heights and distances.

First, we define a figure:

Let AD be John, such that AD = 5 ft.

Let BE be the tree with its height = h ft.

The distance between John and the tree is determined by DE = 20 ft.

We drop a perpendicular from point A to BE at point C.

Now, ADEC is a rectangle. Hence,

CE = AD = 5 ft.

AC = DE = 20 ft.

We join A and B, to complete the right-angled triangle ACB, with ∠ACB = 90°, ∠BAC = 38° (the given angle of elevation).

In ΔACB,

AC = 20 ft. (already derived)

BC = BE - CE = h-5 ft. (∵ BE = height of the tree h, CE = 5, already derived)

Now, in ΔACB,

tan 38° = BC/AC = (h-5)/20

or, h-5 = 20*tan38° = 20*0.781286 = 15.6257

or, h = 15.6 + 5 = 20.6257.

∴ h = 20.6 (correct to the nearest tenth)

So, the height of the tree is 20.6 feet.

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Answer:

one solution

Step-by-step explanation:

Given

17 - \(\frac{1}{9}\) x = 10 ( subtract 17 from both sides )

- \(\frac{1}{9}\) x = - 7 ( multiply both sides by - 9 to clear the fraction )

x = 63

The equation represents the line that passes through (- 6, 7) and (- 3, 6) is  y = -1/3x +5

The slope-intercept form is just a means of formulating a line's equation so that the slope (steepness) and y-intercept (where the line crosses the vertical y-axis) are clearly visible. This form is frequently referred to as the y = mx + b form. This line form is one of the most prevalent in algebra classes.

A line's slope-intercept form is y = mx + b, where m is its slope and b is its y-intercept.

The equation of the line which is passing through two points is:

y₂-y₁ / x₂-x₁

(6-7)/(-3+6)=-1/3

A line's slope-intercept form is y =mx +b, where m is the slope and b is the y intercept.

y = -1/3 x +b. We must now calculate b, the y intercept. To find b, plug one of the given points into the previous equation and solve for b.

6 = -1/3(-3) + b

b = 5

y = -1/3x +5

Therefore, the equation represents the line that passes through (- 6, 7) and (- 3, 6) is  y = -1/3x +5

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Answer:

Step-by-step explanation: Ok So pretend you have one apple and your friend gives you another apple how much would you have... Answer is "2"

Answer: so it is 2

Step-by-step explanation: if one friend said I have 1 bike and you said you have 1 bike that would be 2. So 1 bike + 1 bike= 2 bikes

Answer:

x=85 , y=45

Step-by-step explanation:

If there is a line intersecting another line, the 2 angles being created must add up to 180. So, to find x, you basically just have to subtract 95 from 180, which is 85.

The angles of a triangle must add up to 180 as well. If we already know 2 of the angles, then we can find the other one by subtracting those numbers from 180. 180-85-50= 45.

Therefore x=85 and y=45.

Answer:

y=95 degree(alternate angle)

x+y+50=180

or, x+95+50=180

or, x+145=180

or, x=180-145

or, x=35 degrees

Answer:a =23

Step-by-step explanation:

Answer:

C a=-10, b=-6

Step-by-step explanation:

I took the test.

The distance of the light travels in 15 seconds is 4500000 kilometers.

It should be noted that a function is simply used to illustrate the relationship between the variables that are given.

In this case, the function is given as d(t) = 300000t. Therefore, it should be noted that the distance of the light travels in 15 seconds will be:

d(t) = 300000t

where t = 15

d(t) = 300,000 × 15

distance = 4,500,000 kilometers

The distance is 4500000 kilometers.

Note that the second question wasn't written properly and hence can't be solved.

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Answer:

$758 per week

Step-by-step explanation:

15.16 x 50 = 758

Answer:$758 per week

Step-by-step explanation:Answer:15.16 x 50 = 758

A 1% error in r will lead to a larger error in the volume.

A 1% error in r will cause a larger error in the volume, since the percentage increase in volume is proportional to the square of r.

The volume of a cylinder of radius r and height h is V = πr2h. The linear approximation to the volume of a cylinder is given by V ≈ πr2(h + r).

Thus, the percentage increase in volume when r and h are each increased by c is given by 100% × (Vnew - Vold) / Vold = 100% × (π(r + c)2(h + c + r) - πr2h) / πr2h = 200c/r + 100c/h.

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