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
Ugo [173]
2 years ago
5

Evalute 2d + 3 when d =8 ​

Mathematics
2 answers:
vlada-n [284]2 years ago
5 0

Answer:

2(8)+3

16+3=19

Step-by-step explanation:

In-s [12.5K]2 years ago
4 0

Answer:

19

Step-by-step explanation:

replace the d with 8 and it will be 2 times 8 then you add 3 to the 8

2x8= 16

16+3= 19

You might be interested in
The algebraic expression for​ "the quotient of 77 and​ x" is
Illusion [34]
The correct answer is:

_______________________
 "  77 / x " ;  or;  "x ÷ 77" .

_________________________
In algebra, the former is preferred; that is:  " 77 / x " .
7 0
3 years ago
One more question on this test guys. please answer as fast as possible. If you do,
GaryK [48]

1. The given rectangular equation is x=2.

We substitute x=r\cos \theta.

r\cos \theta=2

Divide through by \cos \theta

r=\frac{2}{\cos \theta}

r=2}\sec \theta

\boxed{x=2\to r=2\sec \theta}

2. The given rectangular equation is:

x^2+y^2=36

This is the same as:

x^2+y^2=6^2

We use the relation r^2=x^2+y^2

This implies that:

r^2=6^2

\therefore r=6

\boxed{x^2+y^2=36\to r=6}

3. The given rectangular equation is:

x^2+y^2=2y

This is the same as:

We use the relation r^2=x^2+y^2 and y=r\sin \theta

This implies that:

r^2=2r\sin \theta

Divide through by r

r=2\sin \theta

\boxed{x^2+y^2=2y\to r=2\sin \theta}

4. We have x=\sqrt{3}y

We substitute y=r\sin \theta and x=r\cos \theta

r\cos \theta=r\sin \theta\sqrt{3}

This implies that;

\tan \theta=\frac{\sqrt{3}}{3}

\theta=\frac{\pi}{6}

\boxed{x=\sqrt{3}y\to \theta=\frac{\pi}{6}}

5. We have x=y

We substitute y=r\sin \theta and x=r\cos \theta

r\cos \theta=r\sin \theta

This implies that;

\tan \theta=1

\theta=\frac{\pi}{4}

\boxed{x=y\to \theta=\frac{\pi}{4}}

6 0
3 years ago
Solve this Equation 10x+2=32
ahrayia [7]
10x+2=32
10x=30
1=3
3=x
7 0
3 years ago
5 more than the product of 9 and 3
dolphi86 [110]
(9)(3) + 5

27 + 5

32



Your answer is 32.
7 0
3 years ago
Read 2 more answers
If a cube has a volume of 343 cubic yards, what is its surface area?
Oksi-84 [34.3K]

hope this helps-------------

7 0
3 years ago
Other questions:
  • SELECT ALL THAT APPLY. LOOKING FOR BRAINLIEST.
    14·2 answers
  • A table contains the ordered pairs 3,42.25 , 5,50.75 . If the relationship in the table is linear explain how to find the initia
    9·1 answer
  • 3x+10y=13<br> 4(-2y+x)-9x=13
    7·1 answer
  • Please hurry I need this fast
    13·1 answer
  • F(x)=3x²+4x-1<br>evaluate f(-2)​
    9·1 answer
  • I NEED HELP ASAP ASAP!
    12·1 answer
  • The sum of two-fifths of a number and<br> three-tenths of the number.
    15·2 answers
  • Help me please !!!!!!!!!​
    9·1 answer
  • In your own words what would the steps be to solve by substitution.
    15·1 answer
  • A Spanish test has 30 questions. A student answers 80% correctly.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!