the difference of two number is 1,their product is 30. what is the number​

no 28

solution

(AB)=100

ABC+CBD=100

4x+2+3x-7=100

7x-5=100

7x=100+5

x=105/7

x=15

(CBD) =3x-7

3(15)-7

45-7

38

Step-by-step explanation:

by using above information

Answer:

6/5 or 1 and 1/5

Step-by-step explanation:

To do this you need to multiply 6/1, 2/3, and 3/10 all together by cancelling out the numerator in 3/10 and the denominator for 2/3. Then you would be left with 6*2*1/10

This simplifies to 6*1/5 because of the 2*1/10 is 1/5, because 1/5 doubled is 1/10.

then multiply the numerator and 6 together to get 6/5.

Hope this helps!

The second option is correct, I,e what you've chosen

Answer:

6 sq.cm

Step-by-step explanation:

base = 4 cm

height = 3 cm

[tex]Area =\dfrac{1}{2}* \ base * \ height\\\\= \dfrac{1}{2}*4 * 3\\\\= 2 *3\\\\ 6 \ cm^{2}[/tex]

Answer:

Step-by-step explanation:

What do you know about y?

Nothing. It could be odd or even. You can't take the chance. So you need to start your list with 2y

That means that 2y + 2 is the second member in your list

2y + 4

2y + 6

2y + 8

2y + 10

But notice you only have 5 numbers. 2y + 10 cannot be the answer.

The answer must be 2y + 20

Answer: i 99% that it is B

Step-by-step explanation:

Answer:

No solution

Step-by-step explanation:

[tex]-2(2x-4)=<4(2-x)\\-4x+8=<8-4x\\8=<8[/tex]

There is no solution to this question.

Answer:

Question 1: c) 12.5 m/s

Question 2: a) The object is not moving.

Step-by-step explanation:

Question 1: 100(m) divided by 8(s) equals 12.5(m/s)

So she goes 12.5 meters per second (m/s).

Question 2: Distance = x variable (horizontal) because the distance depends on the time. Time = y (vertical) because the time is independent.

If the points on the distance or x axis stay the exact same while the time or y axis continues to change, this will lead to a straight horizontal line on a graph and mean that whatever it is being measured for distance, is staying still or 'constant'.

Answer:

[tex] {x}^{2} + 5x = - 2[/tex]

arrange the equation according to general formula;

General formula: ax² + bx + c = 0

therefore:

[tex] {x}^{2} + 5x + 2 = 0[/tex]

Using the quadratic equation :

[tex]x = \frac{ - b± \sqrt{ {b}^{2} - 4ac} }{2a} \\ [/tex]

a » 1, b » 5, c » 2

substitute:

[tex]x = \frac{ - 5± \sqrt{ {5}^{2} - (4 \times 1 \times 2) } }{(2 \times 1)} \\ \\ x = \frac{ - 5± \sqrt{17} }{2} [/tex]

therefore solutions are;

[tex]{ \boxed{ \boxed{x_{1} = \frac{ - 5 + \sqrt{17} }{2} }}} \: \: and \: \: { \boxed{ \boxed{x_{2} = \frac{ - 5 - \sqrt{17} }{2} }}}[/tex]

x is -0.438 and -4.562

Answer:

<EFC = 90 degrees

Step-by-step explanation:

<EFA = <AFD = 45 degrees

<EFC = 180 - 45 - 45 = 180 - 90 = 90

Answer:

(5z-6w)(5z+6w)

Step-by-step explanation:

Hi there!

We're given the expression 25z²-36w² and we want to factor it.

The expression written as a difference of squares. The difference of squares is given as a²-b²=(a-b)(a+b)

Let's label the values of what is a² and b², and then try to determine what a and b are from that information

[tex]a^{2}=25z^2\\b^2=36w^2[/tex]

Alright then! Let's square root both sides to find what a and b are

[tex]\sqrt{a^2}=\sqrt{25z^2[/tex]

Which then means:

a=5z

And then for b:

[tex]\sqrt{b^2}=\sqrt{36w^2}[/tex]

b=6w

Now substitute those values into the formula

a²-b² = (a-b)(a+b)

[tex]25z^{2}-36w^2=(5z-6w)(5z+6w)[/tex]

Hope this helps!

Answer: 45 (cm)

Step-by-step explanation:

Since the discs have the same thickness, we will think about the areas.

Let say x the new radius:

[tex]\pi*5^2+\pi*20^2+\pi*40^2=\pi*x^2\\\Longrightarrow\ 5^2+20^2+40^2=x^2\\\\\Longrightarrow\ 2025=x^2\\\\\Longrightarrow\ x=\sqrt{2025} =45[/tex]

Step-by-step explanation:

what the heck is that if someone's answers this they 9n x games mode

1 liter is 1,000 ml .

250 ml is 1/4 of a liter .

There are 4 of them in 1 liter .

There are 8 of them in 2 liters.

Answer:

7 blue marbles : 10 green marbles

Step-by-step explanation:

When two or more points are on a straight path, then they are collinear. So that in the given question, the value of x is 7.

Two or more points are said to be collinear if and only if they fall on a straight line. Thus, the points can be joined by a single straight line.

From the given question, it can be observed that;

XZ = XY + YZ

But given the following:

XY = 5x, YZ = 2x + 7, and XZ = 56

Then,

56 = 5x + (2x + 7)

     = 5x + 2x + 7

56 = 7x + 7

collect like terms to have

56 - 7 = 7x

49 = 7x

x = [tex]\frac{49}{7}[/tex]

  = 7

x = 7

Therefore, the value of x is 7.

Visit: https://brainly.com/question/13099718

Answer:

Common difference is 4

Step-by-step explanation:

Step-by-step explanation:

we would calculate the line of sight between the 2 lasers.

then we would create a line that goes through the middle point between the 2 lasers and is perpendicular to the line between the lasers. if we are lucky, then "You" is on the same perpendicular line. if not, we need to shift our starting point to a point where the perpendicular line hits the wall of the room.

by following that perpendicular line precisely, we we always have the same distance from both lasers.

Answer:

2600

Step-by-step explanation:

£5.20×10pens=52

52×50packs

2600

Answer:

She had 3.65 or 3 and 13/20

Step-by-step explanation:

4 and 1/4 of a cup in decimal form is 4.25. we know that 3/5 is .60  .Just do 4.25 minus .60

Answer:

Factors for 18: 1, 2, 3, 6, 9, and 18.

Factors for 30: 1, 2, 3, 5, 6, 10, 15, and 30.

:)

Step-by-step explanation:

common factors are 1,2,3,6

A line segment can have one or more points on it. The numerical length of FG is 4

Given that:

[tex]FG = 3x - 5[/tex]

[tex]EF = x[/tex]

[tex]EG = 5x - 8[/tex]

Because point F is on EG, then:

[tex]EG = EF + FG[/tex]

So, we have:

[tex]5x - 8 = x + 3x - 5[/tex]

[tex]5x - 8 = 4x - 5[/tex]

Collect like terms

[tex]5x - 4x = 8 - 5[/tex]

[tex]x =3[/tex]

Recall that:

[tex]FG = 3x - 5[/tex]

Substitute [tex]x =3[/tex]

[tex]FG = 3 \times 3 - 5[/tex]

[tex]FG = 9 - 5[/tex]

[tex]FG = 4[/tex]

Hence, the numerical length of FG is 4

Read more about line segments at:

https://brainly.com/question/1534220

Answer:

81

Step-by-step explanation:

There are only two numbers with 5 factors that are only two digits. 16 and 81 are the only options and when you add 8+1=9 and 81 is divisible by 9.

Have fun with no homework for a week!

5 m/s · 12 s = 5 m · 12 = 60 m

Answer: in 12 seconds that car has gone 60 metres.

Answer:

A car travels at a constant rate of 5 metres per second.

That means that for every second,the car travels 5m/s.

The question is asking you for how far the car travelled after 12 seconds.Muntiply 12 to bottom and top.

5m/1s*12/12=60/12

The car travels 60 metre in 12 seconds

hope this helps to u and don't forget to mark me as brainliest

Answer:

b

Step-by-step explanation:

the answer is 0.7272727273 in total

Answer:

Step-by-step explanation:

Lets call the number n.

So the cube of this number is [tex]n^3[/tex] and the sum of 7 and the cube of this number is [tex]7+n^3[/tex]