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
marin [14]
3 years ago
14

5x + 7 + 2x pls help​

Mathematics
1 answer:
Irina-Kira [14]3 years ago
3 0

Answer:

7x + 7

Step-by-step explanation:

You add the numbers with x's

5x + 2x = 7x

Then just add the 7 to the 7x

7x + 7

You might be interested in
the diameter of earth is approximately 7926 miles. the diameter of the moon is approximately 2,159 miles. Approximately how many
Svetach [21]
To find how approximately how many moons could fit inside the earth, you would need yo find the volumes the earth and the moon.

V = 4/3 π r^3

Earth:
d = 2r
d = 7926 miles
7926 = 2r
3963 miles = r
V = 4/3 π (3963)^3
V = 4/3 π (62240377347)
V = 82987169796π cubic miles

Moon:
d = 2r
d = 2159 miles
2159 = 2r
1079.5 miles = r
V = 4/3 π (1079.5)^3
V = 4/3 π (1257963209.88)
V = 1677284279.83π cubic miles

Now you divide the volume of earth by the volume of moon to find how many moons can fit in earth
82987169796π ÷ 1677284279.83π =
approx 49

Rounding to the nearest whole number, 49 moons can fit in the earth.
Rounding to the tenth place, 50 moons can fit in the earth.

4 0
3 years ago
A parabola has a vertex at (0, –1) and passes through the point (2, 2). Which of the following is the equation of this parabola
galben [10]
For vertex at (h,k)
the equation is
y=a(x-h)^2+k

for vertex at (0,-1)
equation is
y=a(x-0)^2+(-1) or
y=ax^2-1
find what a is

(2,2)
x=2
y=2
2=a(2^2)-1
2=a(4)-1
add 1
3=a(4)
divide both sides by 4
3/4=a

the equation is
y=3/4x^2-1
5 0
4 years ago
If a diagram is unmarked, can you assume...
Rudik [331]
Both pairs of vertical angles<span> (four </span>angles<span> altogether) always sum to a full </span>angle<span>(360°). In the figure above, </span>an angle<span> from each pair of </span>vertical angles<span> are adjacent</span>angles<span> and are </span>supplementary<span> (add to 180°). For example, in the figure above, m∠JQL + m∠LQK = 180°.</span>
5 0
3 years ago
Read 2 more answers
Construct a dichotmous key to differentiate among particles in a solid,liquid and a gas.​
sergey [27]

Answer:

compressed , unfixed , spread'

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
Matilda measures the perimeter of her bedroom to determine how many feet of border she needs to go around the tops of the walls.
guajiro [1.7K]

Answer:

Step-by-step explanation:

you need to show the answers

5 0
3 years ago
Other questions:
  • Order of operations<br> 4/7÷1 1/7+5
    15·1 answer
  • What is the solution to the equation x + 7 = 63?
    12·1 answer
  • Calculate the shaded area
    8·1 answer
  • What is the area of the parallelogram? Parallelogram JKLM with length 15 inches and height 3 inches. 60 in2 45 in2 22 in2 11 in2
    5·2 answers
  • Seven people are going to share an 84-ounce bottle of soda. How many ounces will each person get to drink? Choose the correct eq
    8·1 answer
  • I need help with this is pretty easy pls help me
    15·1 answer
  • Charimaya is running a race around a Squade track of length 75 m. Find the total distance covered by her at the end of her fifth
    11·1 answer
  • What is<br> 12,4% expressed as a fraction?
    6·1 answer
  • How much on average did she make a week, if she worked 15 hours a week at $11/hour? (Rounded to the nearest whole dollar. Do NOT
    11·1 answer
  • A room is 16 feet, 8 inches long and the ratio of lenght to the widthis 4 to 5. what is the width of the room?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!