1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
guajiro [1.7K]
3 years ago
12

The question is in the picture please help if can I will be really grateful

Mathematics
1 answer:
Alexus [3.1K]3 years ago
8 0
The factor (x-9) is negative for x < 9. It is zero for x = 9.

The factor (7x+2) is negative for x < -2/7.

The factors have different signs for -2/7 < x < 9. When their signs are different, their ratio is less than zero. When x = 9, the ratio is equal to zero.

The appropriate choice is the graph that shows -2/7 < x ≤ 9.

You might be interested in
AD is a diameter of a circle and AB is a chord. If AD=34cm, AB=30cm, the distance of AB from the centre of the circle is :
e-lub [12.9K]

Answer:

   The distance is 8 cm

Step-by-step explanation:

The chord and the diameter form one leg and the hypotenuse of a right triangle. The other leg, BD, has length ...

  BD² +AB² = AD²

  BD² = AD² -AB² = 34² -30² = 256

  BD = √256 = 16

The segment from the center of the circle to the midpoint of the chord is the midline of triangle ABD, so is half the length of BD.

  distance from AB to the center = 16/2 = 8 . . . cm

7 0
3 years ago
Solve for X. The Triangles in each pair are similar
Klio2033 [76]

Answer:

x = 7

Step-by-step explanation:

In this question, we need to find what the value of x is.

To do so, we need to find the value of the change of the triangle, since the triangles are basically the same

We know to get from 18 to 27, we would need to multiply 18 by 1.5.

This means that the triangle "BCD" is increasing from 1.5 to get "JKL"

With this knowledge, we also know that side CB, 10, needs to increase by 1.5

When you multiply 10 by 1.5, you get 15.

The triangle side "JK" is the same side as "CB", so we need to find what makes the value of 15 for the "JK" side.

To do this, solve 3x-6 for 15.

3x - 6 = 15

Add 6 to both sides.

3x = 21

Divide both sides by 3

x = 7

The x-variable would be 7.

5 0
3 years ago
Solve this equation x-3=4
MAXImum [283]

Answer:

x-3= 4

x= 4+3

Answer: x= 7

5 0
3 years ago
Read 2 more answers
The area of a rectangular gymnasium is (5x+5x) square feet. If it is 5x feet wide, what is the length, in feet?
Amiraneli [1.4K]

Answer:

Step-by-step explanation:

Area = L x W      gym area is (5x + 5x) ft²      if   W = 5x      Find the L

Area = L x W       divide both sides by W

Area/W  = (L x W) / W

Area/W  =  L  =  Area/W

    L = Area/W

       =  (5x + 5x) / (5x)

       =  5x( 1 + 1) / 5x

       =  5x(2) / 5x                      the 5x's cancel each other  5x/5x = 1

       =   2 ft          I got 2.  I suspect the 12 was a typo and should have been 2

5 0
2 years ago
A.) write an exponential expression: let 10 be the base and an even number between 1 and 10, be the exponent.
AfilCa [17]

Answer:

  10^2 . . . . see below for additional information or versions of the answer(s)

Step-by-step explanation:

You seem to want 10^<em>exponent</em>, where <em>exponent</em> is an even single digit, not zero.

We choose <em>exponent</em> = 2, so your expression is ...

  10^2

__

There are several versions of expanded form. One uses exponents. In that form, the expression above <em>is the expanded form</em>.

Another uses multipliers of 1, 10, 100, 1000, and so on. In that form, the expression expands as ...

  10^2 = 1×100

Another expanded form uses individual digits of the expanded form with others set to zero

  10^2 = 100

The standard form is ...

  10^2 = 100.

_____

We suppose your exponential expression might have another multiplier, such as 2.98:

  • exponential expression: 2.98×10^2
  • standard form: 298
  • expanded form 1: 2×10^2 + 9×10^1 +8×10^0
  • expanded form 2: 2×100 +9×10 +8×1
  • expanded form 3: 200 + 90 + 8
6 0
3 years ago
Other questions:
  • Order the following decimals from least to greatest. 9.036, 9.982, 9.535
    6·1 answer
  • Please I really need help on this matter question
    8·2 answers
  • What is the approximate circumference of a circle with a diameter of 500 kilometers ? use pi= 3.14.
    12·1 answer
  • PLZ HELP!!!!!!!!!!!
    14·2 answers
  • Determine the equation of a circle having a diameter with endpoints at (12,-14) and(2,4)
    13·1 answer
  • the sum of the squares of the length of all three sides of a right triangle is 200. what is the length of the hypotenuse
    5·2 answers
  • Paul is selling his paintings at the town square. He has 32 paintings to sell in all and needs to sell at least 17 paintings in
    9·1 answer
  • Two roommates, roommate X and roommate Y, are expecting company and are arguing over who should have to wash the dishes before t
    9·1 answer
  • A quantity x varies directly with the square of y and inversely with z. If x=40 when y=4 and z=2, find x when y=10 and z=25. Do
    7·1 answer
  • Tell whether the angles are adjacent or vertical. Then find the value of x.​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!