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
schepotkina [342]
2 years ago
5

Help me please. What is (2a+8) + (4a +5)

Mathematics
2 answers:
Rom4ik [11]2 years ago
8 0

Answer:

6a + 13

Step-by-step explanation:

2a + 4a = 6a

8 + 5 = 13

6a + 13

Nutka1998 [239]2 years ago
6 0

Answer: 6a+13

Step-by-step explanation:

2a+8+4a+5

2a+13+4a

now combine like terms:

2a+13+4a=

6a+13

You might be interested in
Identify the missing term in the following geometric sequence:
aleksley [76]

Answer:

B. -1/8

Step-by-step explanation:

Using the terms given in the sequence:

4, -2, 1, -1/2, 1/4

we can find the pattern by dividing since it is a geometric seqence:

-2/4 = -1/2

1/-2 = -1/2

-1/2 ÷ 1 = -1/2

So, each term is multiplied by -1/2 to get the next term in the sequence:

\frac{1}{4}*-\frac{1}{2}=-\frac{1}{8}

3 0
3 years ago
He weighs 88.9 kg. How many grams is this?
Serhud [2]
A kilogram is 1000 grams, so 88.9 x 1000 = 88,900 grams.
6 0
3 years ago
Read 2 more answers
What is the surface area of a sphere with radius of 3.5? A. 12.25p B. 14p C. 24.5p D. 49p
Anuta_ua [19.1K]
S=4π<span>r<span>2 - this is the equation for the surface area of a sphere. We know that the radius (r) is 3.5 so here's how  to solve this:

S = 4</span></span><span>π r2
S = 4</span><span>π (3.5)2
S = 4</span><span>π 12.25
S = 49</span><span>π 

The surface area of a sphere with radius of 3.5 is 49</span><span>π.</span>
7 0
3 years ago
Given f(x) = -* -<br> - 5, solve for x when f(x) = -3.
Ne4ueva [31]

Answer:

x = -2

Step-by-step explanation:

Step 1: Define

f(x) = -x - 5

f(x) = -3

Step 2: Substitute and Evaluate

-3 = -x - 5

2 = -x

x = -2

7 0
3 years ago
Read 2 more answers
A box with a square base and an open top is being constructed out of A cm2 of material. If the volume of the box is to be maximi
viktelen [127]

Answer:

Side length = \sqrt{\frac{A}{3} } cm ,   Height =  \frac{1}{2} \sqrt{\frac{A}{3} } cm  ,  Volume = \frac{A\sqrt{A}}{6\sqrt{3} }  cm³

Step-by-step explanation:

Assume

Side length of base = x

Height of box = y

total material required to construct box = A ( given in question)

So it can be written as

A = x² + 4xy

4xy = A - x²

  1. y = \frac{A - x^{2} }{4x}

Volume of box = Area x height

V = x² ₓ y

V = x² ₓ ( \frac{A - x^{2} }{4x} )

V =  \frac{Ax - x^{3} }{4}

To find max volume put V' = 0

So taking derivative equation becomes

\frac{A - 3 x^{2} }{4} = 0

A = 3 x^{2}

x^{2} = \frac{A}{3}

x = \sqrt{\frac{A}{3\\} }

put value of x in equation 1

y = \frac{A - \frac{A}{3} }{4\sqrt{\frac{A}{3} } }  

y = \frac{2 \sqrt{\frac{A}{3} } }{4 \sqrt{\frac{A}{3} } }

y = \frac{1}{2} \sqrt{\frac{A}{3} }

So the volume will be

V = x^{2} × y

Put values of x and y from equation 2 & 3

V = \frac{A}{3} (\frac{1}{2} \sqrt{\frac{A}{3} } )

V = \frac{A\sqrt{A}}{6\sqrt{3} }

8 0
3 years ago
Other questions:
  • X^3+3x^5=x5 what's the missing expression
    10·2 answers
  • Help a girl out ?? i'm confused as to solve this
    8·1 answer
  • 200 students in a high school senior class are surveyed about what majors they intend to declare in college. Of the 200 students
    13·1 answer
  • Explain how you know that the sum of 12.6 3.1 and 5.4 is bigger than 20
    15·1 answer
  • Please answer if you know the solution. Thx
    8·1 answer
  • Angle 1 and Angle 2 are complimentary angles. Find x and the measure of Angle 1.
    12·2 answers
  • Find the LCM of the numbers using prime factorizations. 36,60
    6·1 answer
  • The table shows the distances and times that four rowboats traveled. Which rowboat was the fastest?
    7·1 answer
  • Use the net to compute the surface area of the three-dimensional figure. A) 210 units B) 225 units C) 240 units D) 280 units
    5·1 answer
  • X * 2 - 21<br><br><br> x + 12<br><br><br> x - 12<br><br><br> x * 2 - 17
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!