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
svp [43]
3 years ago
5

The surface area of this triangular pyramid, whose base and lateral faces are congruent equilateral triangles, is __ square inch

es.

Mathematics
2 answers:
Ket [755]3 years ago
6 0

Answer:

390

Step-by-step explanation:

DedPeter [7]3 years ago
4 0

Answer:

The surface area is equal to 390\ in^{2}

Step-by-step explanation:

The surface area of the triangular pyramid is equal to the area of its four triangular faces

so

In this problem

SA=4[\frac{1}{2}(b)(h)]

we have

b=15\ in

h=13\ in

substitute the values

SA=4[\frac{1}{2}(15)(13)]=390\ in^{2}

You might be interested in
What is the product of 3.39 and 10(2)
vladimir2022 [97]
10(2) = 20
20 x 3.39 = 67.8

So, the product of 3.39 and 10(2) is 67.8.
6 0
3 years ago
Eric cell phone service cost $40.00 a month for unlimited calls he also pays $0.02 for each text message he send. whichbis equat
Marianna [84]

Given :

Service cost , c = $40.

Amount paid for each message , m = $0.02 .

To Find :

Equation represents the total cost C in dollars for a month when eric send t text message.

Solution :

Let , total cost be C .

It is an linear equation with slope equal to 0.02 and y-intercept equal to 40.

So ,

C=mt+c\\\\C=0.02t +40

Hence, this is the required solution.

5 0
3 years ago
a local coffee shop sold out 1/3 of their coffee on monday. on tuesday they sold 5/6 of what rhey sold on monday. How many coffe
ololo11 [35]

Answer:

5/18

Step-by-step explanation:

1/3 on monday

5/6 more

1/3 times 5/6

6 0
3 years ago
Please please help please
Readme [11.4K]

Step-by-step explanation:

its .86 which is closer to .87

so choose the first one

7 0
3 years ago
Read 2 more answers
What is 4.125 to the nearest whole number?
Elis [28]
When you are rounding numbers, if the integer to the right is <5, then you keep your rounding number.  If it is >5, then you add 1 place value to your rounding number.

Therefore, if you are trying to round 4.125 to the nearest whole number, you are trying to round it to the ones place, or where the 4 is.  
Because 1<5, 4.125 rounded to the nearest whole number is 4.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Determine the gravitational force of attraction between two 3.5 kg bowling balls whose
    5·1 answer
  • To which real number sets does the number −1.7 belong? Choose all answers that are correct. A. natural numbers B. whole numbers
    5·2 answers
  • What is the sign of a• (-b/b) when a=0 and b &lt; 0
    6·1 answer
  • Write the set of points from -5 to 4 but excluding -1 and 4 as a union of intervals
    15·1 answer
  • Andrew has 40/100 of dollars. What are two possible combinations of coins that he could have?
    8·2 answers
  • I need an answer for 5/6x4. I appreciate the effort in helping. Sorry im not very good at fractions
    13·2 answers
  • What is the slope of every line perpendicular to (0,1) and (2,-4)
    6·1 answer
  • Solve for θ. Please help me!!
    10·1 answer
  • The y intercept is the point where the graph of a line cuts the y axis true or false
    12·1 answer
  • 5-16 find the general indefinite integral.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!