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
Harrizon [31]
4 years ago
7

Solve for a.

Mathematics
2 answers:
Ipatiy [6.2K]4 years ago
5 0

Answer:

-9

Step-by-step explanation:

It is B (-9) because when you have a negative number and answer in an equation like this, all you have to do is add another negative number to get that answer. -9 + -4 = -13

sergey [27]4 years ago
4 0

Answer:

the answer is B

Step-by-step explanation:

You might be interested in
Step 1: 1x-21+3=7 step 2: 1x-21=7-3 step 3: 1x-21=4 what would the next step be to solve equation
IgorC [24]
Add 21 to both sides
6 0
4 years ago
Please help!!!!!!!!!!!!!!!! Will mark brainliest! thanks!
madreJ [45]

gpm = 29.7 \times  {d}^{2}  \times  \sqrt{np}
this formula is used to determine gpm (gallons per minute) of flow with a known hose diameter (d) and nozzle pressure (np). The constant (29.7) is consistent when figuring flow with in gallons with a know pressure expressed in psi (pounds per square inch).

Scenario example: a firefighter is using a handline to fight fire with an 1 3/4 inch line with a nozzle pressure of 100 psi. How much water is the firefighter flowing when fighting fire?

gpm = 29.7 \times  {1.75}^{2}  \times  \sqrt{100}
3 0
3 years ago
What is the area of the figure below?
stepan [7]
The answer is,
= 22.5 × 2
= 90 in. squared
6 0
3 years ago
Read 2 more answers
The surface area of a cube is 1,014^2. Find the volume of the cube.
Marta_Voda [28]
Let the length of one side of the cube be x.  Then the surface area of the cube is A = 6x^2 = 1014 cubic units.  We want the cube volume, so must first solve for x and then cube the result:
       
                               1014 cu. in.
x = square root of  ----------------- = sqrt(169) = 13
                                        6

The volume of this cube is thus (13 units)^3 = 4826809 cubic units.
7 0
3 years ago
You can buy 12 donuts for $9.60. What is the price for 1 donut?
hjlf

Answer:

0.80 cents

Step-by-step explanation:

I divided 9.60 by 12.

8 0
3 years ago
Read 2 more answers
Other questions:
  • A rectangle with an area of 120 in2 has a length 8 inches longer than two times its width. What is the width of the rectangle
    11·2 answers
  • Which of the following is an example of secured debt?
    10·2 answers
  • Write a negation of the inequality. do not use slash symbol. x>94
    7·1 answer
  • Grade 7. Mathematics: Integers.
    6·1 answer
  • Solve for x.<br><br> A.<br> 6.2<br> B.<br> 6.4<br> C.<br> 6.6<br> D.<br> 6.8
    14·2 answers
  • Which of the following is true of the discriminant for the graph below
    15·1 answer
  • If you could show the steps that would be great​
    10·2 answers
  • MARKING BRAINLIEST!!!<br><br> What is the circumference of circle P in terms of Pi?
    7·1 answer
  • Which function is equivalent to F(x)=-4(x+7)^2-6?
    9·1 answer
  • The value of y varies directly with x, and y = 18 when x = 12. Find y when x = 60.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!