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
monitta
3 years ago
8

What is the value of the expression 4 × (2a − 1) if a = 3?

Mathematics
1 answer:
dlinn [17]3 years ago
4 0

Answer:

20

Step-by-step explanation:

4 * (2a − 1)

Let a=3

4 * (2*3 − 1)

Simplify inside the parentheses first

4 * (6 − 1)

4 * (5)

20

You might be interested in
The ratio of black marker in a box to blue markers in a box is 3:5. If there are 10 more blue markers than black markers,how man
fiasKO [112]

Answer:

Total = 40

Step-by-step explanation:

Given

Black:Blue = 3:5

Blue = 10 + Black

Required

Determine the total number of markers

First, we need to determine the ratio of black to blue such that

Blue = 10 + Black

Black:Blue = 3:5

Multiply the ratio by 5

Black:Blue = 3 * 5 : 5 * 5

Black:Blue = 15 : 25

By direct comparison:

Black = 15

Blue = 25

The above shows that:

Blue = Black + 10

So:

Total = Black + Blue

Total = 25 + 15

Total = 40

7 0
3 years ago
Yooo please help asap!!! marking brainiest!!!
hodyreva [135]

Answer:

- x {}^{2} - 10 = 34

6 0
3 years ago
a pitcher of fruit punch holds 2 gallons.If 9 people share the entire pitcher equally ,how much punch does each person get ?
Arada [10]

Answer:

28 4/9oz.

Step-by-step explanation:

I'd convert this to ounces. A gallon is 128oz.

2x128=256

Now, divide by 9.

256/9≈28.44oz., or 28 4/9 oz.

5 0
3 years ago
Find the product of (x+3) (x+3)
MA_775_DIABLO [31]

Answer:

x^{2} + 9x

Step-by-step explanation:

(x+3)(x+3)

distribute the x to both three and x.

x * x + 3x * 3x

add like terms.

X^2 + 9x

7 0
3 years ago
Quadrilateral ABCD has vertices A(1, 0) B(5, 0) C (7, 2) D(3, 2). Use slope to prove that ABCD is a parallelogram.
iogann1982 [59]

<span>In here, we will use the slope formula in order to prove that ABCD is a parallelogram. The slope of AB must be equal to CD and the slope of BC must be equal to DA. Using the formula m = (y1-y2) / (x1-x2), we obtain the slope for AB = 0/4, BC = 1, CD = 0/4, DA = 1. We can say that ABCD is a parallelogram as it satisfies AB = CD, and BC = DA</span>

6 0
3 years ago
Other questions:
  • MARK AS BRAINLIESTT
    7·2 answers
  • One day the temperature was 72°F. That night, the temperature was 44°F. What number represents the change in temperature?
    7·2 answers
  • Which of these sums is greater than 1? please help 20 pts if u get it A. 12+23 B. 13+18 C. 14+25 D. 15+110
    13·1 answer
  • 100 POINTS
    13·2 answers
  • If f(x)=4x+5 what is f(4)
    8·1 answer
  • The total length of wires A,B and C is 445cm. Wire A is 45cm longer then wire B,and wire B is half as long as wire C. How long i
    7·1 answer
  • Which of the following is not a perfect square? Why?<br>(a) 361 (b) 1156<br>(c) 1128 (d) 1681​
    6·2 answers
  • Prove that (sec theta-cos theta) ( cot theta+tan theta) = tan theta ×sec theta​
    6·1 answer
  • Please please help me!!!!!
    6·1 answer
  • Which are lines that will intersect? which are perpendicular lines? which are skew lines?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!