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
Elden [556K]
3 years ago
13

Simplify the expression: 2(5a−4a)+6a

Mathematics
1 answer:
Basile [38]3 years ago
8 0

Answer:

A

7a this the anser

B

8a

C

12a

D

20a

Step-by-step explanation:

You might be interested in
What is the equation of the following graph?
boyakko [2]

Answer:

\frac{(x-1)^2}{5^2} -\frac{(y-2)^2}{2^2} =1

Step-by-step explanation:

Here you are require to find the equation of the hyperbola given that the center (h,k), the coordinates of the vertices and those of the co-vertices can be determined from the diagram given

The sharp turning points of the curves give the vertices at (-4,2) and (6,2)

Joining the vertices with a straight line will form the transverse axis with length 2a .

To find the length of the transverse axis 2a will be ; 6--4=10. 2a=10 hence a=10/2 =5

a=5

Find the center of the hyperbola at (h,k) by  finding the intersecting point of the diagonals of the rectangle in the diagram

The center identified will be (h,k) = (1,2)

To find the length of the conjugate axis 2b will be ; the length between points (1,4) and (1,0) which are the coordinates of the co-vertices in the hyperbola. 2b= 4-0=4 , b=4/2 = 2

b=2

The standard equation of the hyperbola with center (h,k) is written as ;

\frac{(x-h)^2}{a^2} -\frac{(y-k)^2}{b^2} =1

where  (h,k) is center of hyperbola, (h±a,k) is coordinate of the vertices and (h,k±b) are coordinates of co-vertices.

Substitute values of a, b, h, and k in equation as

\frac{(x-1)^2}{5^2} -\frac{(y-2)^2}{2^2} =1

7 0
3 years ago
The product of 2 and 14 more than a number
Gelneren [198K]

Answer:

85

Step-by-step explanation:

6 0
3 years ago
The intercepts of the line Y=-2x-21
alexgriva [62]

Answer:

-21

Step-by-step explanation:

GIven data

We are given the equation of a line as

Y=-2x-21

let us compare this with the general equation of a line

y=mx+c

from the comparison, we can see that the intercept is -21

Therefore, the intercept is -21

3 0
3 years ago
Yang bought thrice as many blue marbles as pink marbles. He spent as much money on the blue marbles as he did on the pink marbke
monitta
Each pink marble is 90 cents. One blue marble is a third the price of a pink marble, and since yang bought 3 times more blue marbles than pink ones, the total prices are equal. Then you account for the difference between the costs. I'm not good at explaining, hope this helped
5 0
4 years ago
Please help me :(<br> this is really hard
avanturin [10]

Answer:

h ≈ 7.9 cm

Step-by-step explanation:

Using the sine ratio in the right triangle

sin26° = \frac{opposite}{hypotenuse} = \frac{h}{18} ( multiply both sides by 18 )

18 × sin26° = h , then

h ≈ 7.9 cm ( to 1 dec. place )

8 0
3 years ago
Read 2 more answers
Other questions:
  • Maddy and Caitlin spend a certain amount of money from their money box each month to buy bracelet-making supplies.
    10·2 answers
  • What is 289% written as a decimal?
    9·2 answers
  • Last year you could get a hamburger, fries, and a cola at Francisco's Drive-In for $2.00. Since the price of a hamburger has inc
    14·1 answer
  • If "a" is a negative number, and "ab" is a positive<br> answer, then what is the sign of "b”?
    9·2 answers
  • George works a job and receives an hourly wage of $15.05 plus a bonus for being on time every day. if he works 38 hours he earns
    13·1 answer
  • Please Help meeeee , I will give Brainliest
    5·1 answer
  • I WILL GIVE U A HEART 5 STARS AND BRAINERLEST IF U ANSWER PLSZZ
    5·2 answers
  • Work out<br> 55<br> % of <br> 2900
    9·2 answers
  • What is the value of the expression below when x=7?
    13·1 answer
  • A. Encuentra el valor del tercer ángulo en un triángulo que tiene dos ángulos que miden 112º Y 52º B. Encuentra el valor del cua
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!