four times the difference of a number and 7 is 12

Answer:

0

Step-by-step explanation:

6-6 equals 0

Answer:

Step-by-step explanation:

The absolute value of  |-6| is 6

Answer:

The height of the triangle is 6.4cm

Step-by-step explanation:

- If the triangle has a side that measures 12.5cm, it means that two of its sides are equal in length.

Which is equivalent to the description of an isosceles triangle.

To find the height, use the equation of the area.

Area = (Base * height) / 2

- We know the value of the area and its shorter side that could be the base.

40cm = (12.5 cm * h) / 2

- Clearing the height would give that:

80cm / 12.5cm = h

h = 6.4cm

The height of the triangle is 12.5cm

A triangle is a plane figure with edges that are all straight with three sides and three angles.

The formula for calculating the area of a triangle is;

[tex]\mathbf{Area = \dfrac{1}{2}\times Base \times Height}[/tex]

Given that:

The area = 40 cm²

Since the diagram for the triangle is not given;

∴

Using the formula form above:

[tex]\mathbf{40.0 cm^2 = \dfrac{1}{2}\times 12.5 cm \times Height}[/tex]

[tex]\mathbf{40.0 cm^2 \times 2 = 1\times 12.5 cm \times Height}[/tex]

[tex]\mathbf{80.0 cm^2 = 12.5 cm \times Height}[/tex]

[tex]\mathbf{Height = \dfrac{80.0 cm^2}{ 12.5 cm} }[/tex]

Height of the triangle = 6.4 cm

Therefore, we can conclude that the height of the triangle = 6.4 cm

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Answer:

I believe it would be TRUE but sorry if I'm wrong!

Step-by-step explanation:

Answer: True

Step-by-step explanation:

I got it right on my lesson.

bhai ap apne ap kar lo ye question

Answer:

11446

Step-by-step explanation:

= [(12*9) - 1 ]^2-3

=[108-1]^2-3

=107^2-3

=11449-3

=11446.

Answer:

From the given information, the value of n is 1. By using that information, the measure of JL is 29.

Step-by-step explanation:

For this problem, we have to not only find the value of n but, we also have to find the value of JL. We are given information in this problem.

ΔABC ≅ ΔJKL

AC = 10n + 19

JL = 9n + 20

From this information, we can conclude that AC and JL are congruent meaning they are equal in measure. So, let's set up an equation where they set equal to each other.

10n + 19 = 9n + 20

Subtract 9n from 10n.

n + 19 = 20

Subtract 19 from 20.

n = 1

So, the value of n is 1. We can use this to find the value of JL.

JL = 9(1) + 20

JL = 9 + 20

JL = 29

Answer:

JL is equal to 29

Step-by-step explanation:so JL= 29 is the answer

Answer:

The probability is 0.0643 to 4 decimal places

Step-by-step explanation:

To calculate this probability, we find the z-score

Mathematically;

z-score = (x-mean)/SD

where in the question;

x = 46.3

mean = 55.1

SD = 5.8

Plugging these values, we have;

z-score = (46.3-55.1)/5.8 = -8.8/5.8 = -1.52

The probability we want to calculate is;

P(z < -1.52)

We can get this answer by using the standard normal distribution table;

Thus from the table, we have;

P(z < -1.52) = 0.064255 which is 0.0643 to 4 decimal places

Answer:

Answer:

160°

Step-by-step explanation:

If you add or subtract a full 360° rotation (or multiple of 360°) you get the same rotation.

Add 360° to -200°:

-200 + 360 = 160

Answer:

The answer is $690.78

Step-by-step explanation:

Answer:

A. $54,550.84

Step-by-step explanation:

48,000(1.0325)^4

48,000(1.136475928)

54,550.84455

Answer:

the tax on a $90,000 salary is: $5175

Step-by-step explanation:

Given that the person earns a $90,000 annual salary, you need to use the last of the brackets , the one that reads "17,001 and up". That is, you need to find the 5.75% of the $90,000 in order to determine the taxes owed.

Recall that 5.75% in math terms is: 5.75/100 = 0.0575

Then the 5.75% of $90,000 is mathematically calculated as the product :

0.0575 x 90,000 = 5175

Therefore the tax on a $90,000 salary is: $5175

Answer:

v (E) = √(2E/m)

Step-by-step explanation:

From the question given:

E = ½mv²

E is the kinetic energy

m is the mass of object

v is the velocity.

To find a model v(E) for the velocity of the object, we simply make V the subject of the above equation.

This can be obtained as follow:

E = ½mv²

Cross multiply

mv² = 2E

Divide both side by m

v² = 2E/m

Take the square root of both side

v = √(2E/m)

Therefore, the model v(E) for the velocity of the object is given by:

v (E) = √(2E/m)

Answer:

Step-by-step explanation:

The statement that is true for the given figure will be AD/DC = AB/CB.

So the correct option is A.

A triangle is a polygon that has three sides and three vertices. It is one of the basic figures in geometry.

The Triangle inequality theorem of a triangle says that the sum of any of the two sides of a triangle is always greater than the third side.

The triangle ABC is divided into two triangle by a median DB that are;

Triangle ADB and Triangle ADC

So here the proportion form as;

AD/DC = AB/CB.

Therefore, The statement that is true for the given figure will be AD/DC = AB/CB.

So the correct option is A.

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At the point of the least cost of fencing the cost function has a zero

derivative.

Reasons:

Shape of the pen = Rectangular

Area of the pen = 24 yd²

Cost of material on one side of the fence = $6 per yard

Cost of material on the remaining three sides = $3 per yard

Required:

The least cost of fencing the pen

Solution:

The least cost is a minimum value of the cost function

Let L represent the length of the fence and let W represent the width of the fence

We have;

The perimeter of the fence = 2·L + 2·W

The area of the pen, A = L × W = 24

One of the length, L, of the fence costs $6 per yard and the other length L,

of the opposite side costs $3 per yard.

The cost of fencing, C  3 × 2·W + 3 × L + 6 × L = 6·W + 9·L

C = 6·W + 9·L

[tex]\displaystyle W = \mathbf{\frac{24}{L}}[/tex]

Which gives;

[tex]\displaystyle C = 6 \cdot \frac{24}{L} + 9 \cdot L = \frac{144}{L} + 9 \cdot L = \mathbf{\frac{144 + 9 \cdot L^2}{L}}[/tex]

The shape of the above function is concave upwards.

At the minimum value, we have;

[tex]\displaystyle \frac{dC_{min}}{dL} = \frac{d}{dL} \left(\frac{144}{L} + 9 \cdot L\right) = 9 - \frac{144}{L^2} = 0[/tex]

Which gives;

[tex]\displaystyle \frac{144}{L^2} = 9[/tex]

[tex]\displaystyle \frac{144}{9} = L^2[/tex]

By symmetric property, we have;

[tex]\displaystyle L^2 = \frac{144}{9}[/tex]

[tex]\displaystyle L = \sqrt{ \frac{144}{9}} = \frac{12}{3} = 4[/tex]

The length of the fence that gives the least cost, L = 4 yards

[tex]\displaystyle At \ L = 4, \ W = \frac{24}{4} = 6[/tex]

The width of the fence at least cost, W = 6 yards

Cost, C = 6·W + 9·L

Least cost, [tex]C_{min}[/tex] = 6 × 6 + 9 × 4 = 72

The least cost of the fencing, [tex]C_{min}[/tex] = $72.00

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In a fraction, the fraction bar means divided by. So to find the decimal form equivalent of a fraction like 1/4 you need to solve the math problem 1 dived by 4.

1 ÷ 4= 0.25

Complete Question

The projected worth (in millions of dollars) of a large company is modeled by the equation w =256(1.09)^t .

The variable t represents the number of years since 2000. What is the projected annual

percent of growth, and what should the company be worth in 2008?

Answer:

a) The projected annual percent growth = 9%

b) The company's worth in 2008 = 510.09603627(in million dollars) or $510,096,036.27

Step-by-step explanation:

a) The projected annual percent growth

From the formula of company's worth =

w = 256(1.09)^t

1.09 - 1 = 0.09

Converting decimal to percentage

= 0.09 × 100

= 9%

b) The projected worth of the company is represented as:

w= 256(1.09)^t

t = 2000 - 2008 = 8 years

w = 256(1.09)^8

w = 510.09603627(in million dollars)

or 510.09603627 × 1,000,000

= $510,096,036.27

Answer:

0 ones

7 tenths

6 hundredths

I'm sorry if I misunderstood.

Good luck though! :)

Please add Brainliest if you'd like, not that it matters.

Answer:

500

Step-by-step explanation:

Answer:

it is 500

Step-by-step explanation:

it is 500 because if you take the 5 and multiply it by the 1 you get one then all you do after you do that is add the zeros at the end.

Answer:

the answer is b

Step-by-step explanation:

2nd graph includes a pair of functions for a specific velocity function and the corresponding stopping distance that can be verified as inverses.

The answer is option B.

The test to verify if a function f is the inverse of another function g is given by using the composition of the functions such as this, f(g(x))= x. Therefore, to answer your question, f(g(x))=x is saying f is the inverse of g. f(g(x))=x is saying f is the inverse of g but g is not the inverse of f, g(f(x))≠x.

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Answer: 77

Add the three given values to get that result above.

Answer:

Lulu= £81

Ruby=£108

Emma=£ 72

Step-by-step explanation:

Let Lulu's money be x

Let Ruby's money be y

Let Emma's money be z

The total money they went shopping with is = £261

So

x+y+z= 261

Lulu spent 2/3 of her money Ruby spent 1/2 of her money and Emma spent 3/4 of her money.

Money spent by each

Lulu= 2/3x

Ruby=1/2y

Emma= 3/4z

Each of them spent the same amount of money.

2/3x= 1/2y= 3/4z

2/3x= 1/2y

x(2*2)/3 = y

4/3(x) = y

2/3x=3/4z

x(2*4)/(3*3)= z

8/9x= z

x+y+z= 261

x+4/3x+8/9x= 261

9x +12x +8x= 2349

29x= 2349

X= 81

4/3(x) = y

4/3(81) = y

108= y

8/9x= z

8/9(81)= z

72= z

The total miles run by four runners is 26.563 miles.

Addition is also known as the sum, subtraction is also known as the difference, multiplication is also known as the product, and division is also known as the factor.

Given, Four runners are training for long races. Noah ran 5.123 miles, Andre ran 6.34 miles, Jada ran 7.1 miles, and Diego ran 8 miles.

Therefore, The total number of miles for the dour runners is the sum of the individual miles run by each player which is,

= (5.123 + 6.34 + 7.1 + 8) miles.

= 26.563 miles.

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Answer:

Step-by-step explanation:

A complex number in its rectangular form is expressed as x+iy where x is the real part of the complex number and y is the imaginary because it is attached to the imaginary number i.

Given the complex number 4-5i, comparing the complex number with x+iy

4 = x and iy = -5i

Hence x = 4 and y = -5.

Since x is the real part of the complex number x+iy, hence 4 will be the real part of the complex number 4-5i based on comparison.

Answer:

4

Step-by-step explanation:

there are only for sandwiches.

Answer:

  [tex]H= 0.15x+ H[/tex]

Step-by-step explanation:

This problem requires that we produce a model that describes the daily height of the beans stalk

let us describe some variables

the daily height is H

let the initial height be h= 5 cm

and the daily increment be 15%= 0.15

and also the number of days be x

We can use the equation of straight line to model the daily height of the beans stalk

i.e

[tex]y= mx+c[/tex]

hence  the formula for the height of the beanstalk is

[tex]H= 0.15x+ H[/tex]

Answer:

60 miles

Step-by-step explanation:

all you do is 1/3 + 1/3 and get 2/3. then times that by 180. You get 120. divide that by 2 because half the time she gets a ride and you get 60.