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
solmaris [256]
3 years ago
14

What is the solution for -10 < x - 9?

Mathematics
1 answer:
enyata [817]3 years ago
4 0
<span>-10 < x - 9

</span><span>-10+9 < x - 9+9

-1<x, or
x> - 1</span>
You might be interested in
Find the mean absolute deviation of the set of data. 2, 3, 5, 7, 9
11111nata11111 [884]

Answer:

2.4

Step-by-step explanation:

To find the mean absolute deviation, find how much each value is away from the mean, and divide it by the number of numbers you have. In this case, the mean is 5, and the deviation of each number is 4, 2, 0, 2, and 4. Add these up and you get 12. Divide 12 by the number of numbers which you have, which is 5, to get 2.4.

3 0
3 years ago
X^2 =80. Write the exact answer using radicals
DanielleElmas [232]
Answer:

4√5, -4√5

Step-by-step explanation:

x^2 = 80

√x^2 = √80

x = 8.9 or 4√5
8 0
3 years ago
If the product of the extremes is 8,then the geometric mean is. A) 2. B) 2√2. C) 4
Rainbow [258]

if,

p/x=x/q

then cross-multiplying gives <span>x^2=pq</span>

<span>x^2=pq</span>. Taking the square root of both sides, we get <span>x=√pq</span> as the geometric mean of p and q.

Hence in the given question the product of p and q is 8.

so,

x=√8

x=2√2

4 0
3 years ago
The area of a circle is 39.62cm2.<br> Find the length of the radius rounded to 2 DP.
Shkiper50 [21]

Using the formula for area of a circle:

Area = pi x radius^2

Replace area with the given value:

39.62 = pi x radius^2

Divide both sides by pi

Radius^2 = 39.62/pi

Radius^2 = 12.62

Solve for radius by taking the square root of both sides

Radius = sqrt(12.62)

Radius = 3.55 cm

4 0
2 years ago
Holly made 12 pair of earrings for each of her girlfriends. To wrap the pairs individually, she creates a simple cardboard gift
Mekhanik [1.2K]

Answer:

3280cm²

Step-by-step explanation:

We are told the gift box is folded into a Pyramid with a square base.

Hence, we are to find the Surface Area of a square pyramid

From the question, we are given:

Length of the base of the square = 10cm

Triangle

Side length = 10cm

Height = 8 2/3 cm

A square Pyramid has 5 faces: 4 triangles and 1 square.

Step 1

Find the Area of the square

Formula = Side length² this is because all the side of a square is equal.

Length of the base = 10cm

Area of the square = (10cm)²

= 100cm²

Step 2

Find the Area of the triangle. We are told the 4 triangles are equilateral, which means their side are equal.

Hence, for one triangle.

Area of a triangle = 1/2 × base × height

Base = side length = 10cm

Height = 8 2/3 = 8.6666666667cm

Area of a triangle = 1/2 × 10 × 8.6666666667

Area of a triangle = 43.333333333cm²

Since we have 4 triangles

We would have : 4 × 43.333333333cm²

= 173.33333333cm²

The Area of the 4 equilateral triangles =

173.33333333cm²

Step 3

The Surface area of the Square Pyramid

= Sum of the areas of all the faces.

= 100cm² + 173.33333333cm²

= 273.33333333cm²

Therefore, the minimum amount of cardboard needed to make one gift box = 273.33333333cm²

Step 4

The minimum amount of cardboard Holly needs to create 12 gift boxes to wrap each pair of earrings individually is calculated as: 12 × 273.33333333cm²

= 3280cm²

7 0
3 years ago
Other questions:
  • Compare will mark bl
    8·2 answers
  • Approximately how many degrees are in the measure of an interior angle of a regular eight sided polygon? 45 135 180 225
    10·2 answers
  • Find the rectangular coordinates of the point (-3,1/2pi)
    5·1 answer
  • Which system of inequalities does the graph represent:
    10·2 answers
  • Explain how to average out a few numbers
    13·1 answer
  • Evaluate (5^0-4^-1)×3/4​
    15·1 answer
  • What is the approximate length of arc s on the circle below? Use 3.14 for pi . Round
    12·2 answers
  • Can someone help with this question on math please
    8·1 answer
  • HELP PLZZ! DUE IN 15 MIN!
    8·1 answer
  • A shipment of tile cost $64,500. each tile costs 15 dollars. how many pieces of tile are in the shipment?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!