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
natulia [17]
1 year ago
6

Pls help me thank you

Mathematics
1 answer:
aleksley [76]1 year ago
3 0

Answer:

140.4ft^2

Step-by-step explanation:

since all four sides are equilateral triangles, you only need to find one triangle and multiply by 4.

area of triangle = 0.5×base×height = 0.5×7.8ft×9ft =35.1ft^2

surface area of pyramid= 35.2ft^2 × 4 = 140.4ft^2

You might be interested in
A sailboat travels 3 miles in 1.5 hours. How far can a boat travel in 0.5 hour?
Liono4ka [1.6K]

the answer to that question is 1 mile

4 0
3 years ago
Which of the following constants can be added to x2 + x to form a perfect square trinomial?
solmaris [256]

The constant should be added to form a perfect square trinomial will be 1/4. Then the correct option is D.

<h3>What is a quadratic equation?</h3>

It's a polynomial with a value of zero. There exist polynomials of variable power 2, 1, and 0 terms. A quadratic equation is an equation with one statement in which the degree of the parameter is a maximum of 2.

The expression is x² + x.

Then the constant should be added to form a perfect square trinomial.

Then the constant will be

The square of the half of the coefficient of the variable x is to be added to make a perfect square.

Then the constant will be 1/4.

Then the perfect square will be

\rm \rightarrow x^2 + x + \dfrac{1}{4}\\\\\\\rightarrow x^2 + 2 \times \dfrac{1}{2} x + \left (\dfrac{1}{2} \right )^2\\\\\\\rightarrow \left (x + \dfrac{1}{2} \right)^2

More about the quadratic equation link is given below.

brainly.com/question/2263981

#SPJ1

4 0
2 years ago
How do you simplify ( 11-7)+3 using order of operations?
alex41 [277]
I think this is

4+3 = 7.

.. :))
4 0
3 years ago
Read 2 more answers
the granola summer buys used to cost six dollars per pound but it has been marked up 15% a how much did it cost summer to buy 2.
EastWind [94]
17.94
Because 15% of $6 is .9 so 
2.6x6.9=17.94
5 0
2 years ago
One week, Kayden earned $146.00 at his job when he worked for 10 hours. If he is
VMariaS [17]

Answer:

3 hours

Step-by-step explanation:

you take the amount that was earned and divide it by the amount he works.

\frac{146.00}{10} = 14.6 per hour.

then to find the number of hours he would have to work next week to earn $43.80 you divide the amount per hour by the amount he would have to work next week.

\frac{43.80}{14.6} = 3 hours

4 0
10 months ago
Other questions:
  • *I WILL MARK YOU BRAINLIEST!!!!*
    13·1 answer
  • Marko terzo please help
    13·1 answer
  • A car moves at a constant speed of 50 miles per hour. How long does it take the car to go 200 miles?
    7·1 answer
  • What’s 6,735,834 in expanded form and word form
    9·1 answer
  • How do you do this???
    8·1 answer
  • Pls answer fast Y=Mx+b for x And Y=Mx+b for m Shoe steps
    15·1 answer
  • Ryan had 240 cds. Sharon had 9/2 of the number of cds Ryan had. Sharon gave 75 CDs to her friends. Find the percent decrease in
    8·1 answer
  • The average daily maximum temperature for Shane’s hometown can be modeled by the function f(x)=12.2cos(πx6)+54.9, where f(x) is
    11·1 answer
  • How can we tell if the slope is positive or negative?
    9·1 answer
  • On the grid below, which point is located in the quadrant where the x-coordinate is a positive number and the y-coordinate is a
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!