help please..... I cant find the answe​

Answer:

the length of the minute hand is 36/100 . 150 = 54 (mm)

y is the distance between the minute hand and the hour hand now

x is the angle beween the minute hand and the hour hand, so we have:

cos x = 36/54 = 2/3 => sin x = [tex]\sqrt{1-(\frac{2}{3})^{2} }=\frac{\sqrt{5} }{3}=\frac{y}{54}[/tex]  => y = 18√5 (mm)

a) see in the ques, u can see that in 45', the minute hand will move a distance equal to 2 times its length and a distance = 2.18√5 (mm)

=> the distance which the minute hand will move is 54.2 + 2.18√5 = 188,50 (mm)

b) the distance which the minute hand will move in 1h is 54.4 - 18√5 = 175,75(mm)

the distance which the hour hand will move in 1h is 36.4 = 144 (mm)

=> the minute hand will move: 175,75 - 144 = 31,75(mm) further than the hour hand

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

used graphing calculator

Answer:

Step-by-step explanation:

use foil and you will have

=2a^2-6ab+5ab-15b^2

=2a^2-ab-15b^2

i think is B, maybe you forgot a minus between ab and 15b^2

9514 1404 393

Answer:

  k = 5

Step-by-step explanation:

Suppose the distance to the factory is 1 unit. Then the speed the father walks is ...

  speed = distance/time = 1 / 30 . . . . units per minute

When the father leaves 10 minutes earlier than the son, his position t minutes after the son starts walking is ...

  d = 1/30(t +10)

Similarly, when the father starts 5 minutes earlier than the son, his position t minutes after the son starts walking is ...

  d = (1/30)(t +5)

We want that to be the same as the distance the son covers t minutes after he starts walking. The son's progress is ...

  d = 1/20t

To find the value of k such that the distance covered is the same 2k minutes after the son starts, we will use t=2k and d=d, so ...

  (1/30)(2k +5) = (1/20)(2k)

  4k +10 = 6k . . . . . multiply by 60

  10 = 2k . . . . . . . . . subtract 4k

  5 = k . . . . . . . . . . . divide by 2

__

The attached graph shows the different scenarios, where the blue line is the son's progress. When the father starts 5 minutes earlier, the son meets him half-way to the factory after 10 minutes, so k = 10/2 = 5.

Answer:

Step-by-step explanation:

Given the equation;

[tex]\dfrac{k}{100} = \dfrac{1}{10}[/tex]

We are to find the value of k.

Cross multiply;

[tex]\dfrac{k}{100} = \dfrac{1}{10} \\10 \times k = 100 \times 1\\10k = 100\\[/tex]

Divide both sides by 10

[tex]10k/10 = 100/10\\k = 10[/tex]

Hence the value of k is 10

Answer:

100/9

Step-by-step explanation:

On Khan

Answer:

8 x h= p

Step-by-step explanation:

You see 8. That is the amount she is getting paid for each hour.

p is how much is paid totally after working a certain amount of hours

h represents how many hours she works.

8 dollars times the amount of  hours she works(h) would equal p, the total amount she is paid

I really hope this helped~~

Answer:

D. 58cm

Step-by-step explanation:

Hi Alondra, umm...  I looked this up and saw your name. This is on the final right.

Andrew Moreno

Answer:

An ice cream cone has a height of 11cm and a diameter of 4.5 cm. Which value best represents the amount of ice cream the cone can hold.

Step-by-step explanation:

Answers:

x = 5

y = -5

==================================================

Work Shown:

3x + 2y - 5 = 0

3(y+10) + 2y - 5 = 0 ... replace x with y+10

3y+30+2y-5 = 0 .... distribute

5y+25 = 0

5y = -25 .... subtract 25 from both sides

y = -25/5 .... divide both sides by 5

y = -5

Use this y value to find x

x = y+10

x = -5+10

x = 5

------------------

As a way to check, plug these x and y values into the first equation

3x + 2y - 5 = 0

3(5) + 2(-5) - 5 = 0

15 - 10 - 5 = 0

5 - 5 = 0

0 = 0

This confirms the first equation and helps confirm our answers.

Answer:

Step-by-step explanation:

[tex] = \frac{9 + 12 + 30}{2}cm \\ = \frac{51}{2}cm \\ 25.5cm[/tex]

Answer: 4x+9-3/5=10xy^3-49

Step-by-step explanation: x+9-3/5-(10*x*y^3-49)=0

STEP

1

:

Equation at the end of step 1

3

((4x + 9) - —) - ((2•5xy3) - 49) = 0

5

STEP

2

:

3

Simplify —

5

Equation at the end of step

2

:

3

((4x + 9) - —) - (10xy3 - 49) = 0

5

STEP

3

:

Rewriting the whole as an Equivalent Fraction

3.1 Subtracting a fraction from a whole

Rewrite the whole as a fraction using 5 as the denominator :

4x + 9 (4x + 9) • 5

4x + 9 = —————— = ————————————

1 5

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

3.2 Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

(4x+9) • 5 - (3) 20x + 42

———————————————— = ————————

5 5

Answer:

Step-by-step explanation:

The red lines indicate corresponding angles. Here we see 2 corresponding congruent sides and 1 corresponding congruent angle. The SAS postulate states that we can conclude a triangle is congruent if we have 2 sides and 1 angle as being congruent. However, on closer inspection, we will notice that the angle is not actually corresponding. The first triangle has the angle between the two sides marked, but the second one has the angle on the other side marked. Because of this, we cannot conclude the triangles are congruent.

The greatest common factor of the expression will be 8( x + 6y).

The largest factor of the two numbers which divides both numbers is called as greatest common factor or GCF. In mathematics, the largest positive integer that divides each of the integers is known as the greatest common divisor of two or more integers that are not all equal to zero.

The given expression is 8x+48y. The greatest common factor will be calculated as,

E = 8x+48y

E = 8(x +6y)

Therefore, the greatest common factor of the expression will be 8( x + 6y).

To know more about GCF follow

https://brainly.com/question/219464

#SPJ3

Answer:

C

Step-by-step explanation:

Given

s = [tex]\frac{t+7s}{5}[/tex] ← substitute s = - 2 into the equation

- 2 = [tex]\frac{t+7(-2)}{5}[/tex] ( multiply both sides by 5 to clear the fraction

- 10 = t - 14 ( add 14 to both sides )

4 = t → C

Answer:

D

Step-by-step explanation:

Angle 1 is 112

Angle 2 is 68

Angle 3 is 90

Angle 4 is 90

Angle 5 is 22

Angle 6 is 158

Answer:

16,713.4 cc

Step-by-step explanation:

You are given the height (6) and circumference (187) and the formula for the volume of the volume of a cylinder is [tex]\pi *r^{2} *h[/tex]. You first need to find the radius of the cylinder using the equation [tex]C=2\pi r[/tex]. Doing so, you get 29.76 cm for the radius. After this, you plug in 29.76 and 6 into the equation to get 16,713.4 cc.

Answer:

It will equal 0

Answer:

All the best this is the answer

2x+y=1

y=x-5

substitute: y=x-5 in 2x+y=1

2x+x-5=1

2×+x=1+5

2x+x=6

3x=6

x=6/3

x=2

finding y:

substitute x=2 in 2x+y=1

2×2+y=1

4+y=1

y=1-4

y=-3

so(2,-3) is the answer

Answer:

wow then u saved $7425 in your savings account

Step-by-step explanation:

Answer:

The second one

Step-by-step explanation:

4x-y=14

4(y+2) -y=14

4y+8-y=14

3y=14-8

3y=6

y=2

x=2+2

x=4

Answer:

y=2 x=4

a. (4,2)

simple. easy. awesome. xfinity

Answer:

Step-by-step explanation:

speed=75 miles per hour

[tex]speed=\frac{75 \times 1760 \times 3 }{3600 } =110 ~ft~/ ~s[/tex]

distance covered in 10 seconds=110×10=1100 ft

Answer:

We will use this equation to solve this question: Distance = Speed/Time

Distance = 75 x 5280

                     3600

We are multiplying 75 by 5280 because we want to convert miles to feet. Then, we divide it by 3600, which is equivalent to an hour.

Distance = 396,000

                     3600

              = 110 Feet

Therefore, the car will travel 110 feet in 10 seconds.

Answer:

24

Step-by-step explanation:

The least possible value is when 20x^2 = 0. All other values give a larger value than 0. Thus, the minimum value for y = 24.

Answer:

24

Step-by-step explanation:

Answer:

One possible dividend is 1,237

Step-by-step explanation:

One possible dividend will be 1,237

This is because of we multiply 247 by 5, we get 1,235 and we can add 2 so we can have remainder 2

The difference between the next factor of 5 and the last one which has 247 as the multiple of 5 is 5

So adding 1,2,3 and 4 to the product will give a number that is not up to the next multiple of 5 and thus we can have our dividend with the remainder

This question is incomplete

Complete Question

Taylor made 2 1/2 gallons of fruit punch. What is the total number of 8-fluid-ounce cups of punch that Taylor made?

Answer:

40

Step-by-step explanation:

Step 1

Let's convert the gallons to fluid ounces

1 gallon = 128 fluid ounces

2 1/2 gallons = x

Cross Multiply

x = 2 1/2 gallons × 128 fluid ounces

x = 320 fluid ounces

2 1/2 gallons of fruit punch = 320 fluid ounces of fruit punch.

Step 2

The total number of 8-fluid-ounce cups of punch that Taylor made is calculated as:

8 fluid ounce = 1 cups

320 fluid ounces = x

Cross Multiply

8x = 320

x = 320/8

x = 40

Hence, the total number of 8-fluid-ounce cups of punch that Taylor made is 40