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
Inessa [10]
3 years ago
7

A pyramid has a horizontal square base of 12cm. the vertex of the pyramid is 7cm vertically above the base. calculate, correct t

o one decimal place:
(i) the length of the slant height
Mathematics
1 answer:
Dafna11 [192]3 years ago
5 0

Answer:

9.2 cm.

Step-by-step explanation:

A pyramid has a horizontal square base of 12 cm. The vertex of the pyramid is 7 cm vertically above the base.

So, the height of the pyramid is 7 cm and half-length i.e. half base is equal to \frac{12}{2} = 6 cm.

Now, the slant height of a pyramid is the altitude of the side triangles.

Therefore, the length of the slant height will be equal to \sqrt{6^{2} + 7^{2}} = 9.219 cm ≈ 9.2 cm. (Answer)

You might be interested in
What is the product written in scientific notation?
Vesnalui [34]
First, you multiply 2.1 by 3.2, which gives you the answer of 6.72. Then, you multiply 10-2 by 10-4. One rule about multiplying exponents, you just add the exponents. So 10-2 x 10-4 = 10-6. Finally you get the answer of C. 6.72 x 10-6.
7 0
3 years ago
Solve for the variable 2y-8=-3y-18
Ainat [17]
2y-8=-3y-18
5y=-10
y=-2

4 0
3 years ago
It is known that 10% of the calculators shipped from a particular factory are defective. In a random sample of ten calculators,
umka2103 [35]

Answer:

0.7361

Step-by-step explanation:

In this question we have

number to be 10

Then we have a probability of 10% = 0.10

We have q = 1-p

= 1-0.10 = 0.90

Then the probability of not more than 1 being defective:

P(x=0) + p(x= 1)

(10C0 x 0.1⁰ x 0.9^10-0)+(10C1 x 0.1¹ x 0.9^10-1)

= 1 x1 x0.3487 + 10 x 0.1 x 0.3874

= 0.3487 + 0.3874

= 0.7361

This is the the required probability and this answers the question.

probability = 10 percent = 0.1

q= 1- 10percent = 90% = 0.9

n = 4

To get the required probabiltiy for this question is

P(not greater than one is defective )=P(x=0)+P(x=1)

= 4C0x(0.1)⁰x(0.9)⁴+4C1x(0.1)¹x(0.9)³

= 0.9477

The required probability is 0.9477

5 0
3 years ago
What is the equation of the blue line
Sauron [17]

Answer:

y=2x+3

Step-by-step explanation:

Use the equation: y=mx+b

m is the slope (2 in this case)

b is the y intercept (3 in this case)

So the equation of the line would be y=2x+3

5 0
2 years ago
Which phrase does not have the same meaning as 3/w
Effectus [21]
The answer is A. There is no multiplication sign in the problem. It’s all division.
7 0
3 years ago
Other questions:
  • A man starts walking north at 2 ft/s from a point P. Five minutes later a woman starts walking south at 3 ft/s from a point 500
    11·1 answer
  • I will give brainliest if i can too
    8·1 answer
  • Vectors; please help: 2y+w-u=?
    9·1 answer
  • You are driving to visit a friend in another state who lives 700 miles away.you are driving 65 miles per hour and have already d
    9·2 answers
  • Solve the proportion w/36=5/18
    12·1 answer
  • Desmond deposits $50 into a savings account every month at an annual interest rate of
    10·1 answer
  • What is 5/10 in simplified form
    12·1 answer
  • Calculate the current in an Inductor if the energy stored is 240J and the Inductance is 24H.​
    6·1 answer
  • Which of the following possibilities will form a triangle? (1 point)
    9·2 answers
  • Please Help! 5.1 Algebra
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!