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
marishachu [46]
3 years ago
10

What’s 2(2a+ 3b - 4) if a=2 and b=3

Mathematics
1 answer:
Aleksandr [31]3 years ago
5 0

Answer:

2 ( 2a + 3b - 4)

Putting the value of a= 2 and b = 3 in the equation

2( 2(2) + 3(3) -4)

2 (4 + 9 -4)

2( 4 -4 + 9)

2 (0 + 9)

2 (9)

2 × 9

18

You might be interested in
Use: 0, 4, 6, 11, 9, 8, 9, 1, 5, 9, 7 to construct a box-and-whisker plot. List the maximum, minimum, and quartiles
gulaghasi [49]

Answer:

  • 0, 4, 7, 9, 11

Step-by-step explanation:

<h3>Given</h3>
  • 0, 4, 6, 11, 9, 8, 9, 1, 5, 9, 7
<h3>To find</h3>
  • List 5 points of box and whisker plot
<h3>Solution</h3>

<u>Step 1</u>

<u>Putting the data in the order from smallest to greatest:</u>

  • 0, 1, 4, 5, 6, 7, 8, 9, 9, 9, 11

<u>Step 2</u>

  • The minimum and maximum = 0 and 11
  • Medium quartile is the middle number ⇒ Q2 = 7
  • First quartile = middle of the lower part ⇒ Q1 = 4
  • Third quartile = middle of the highest part ⇒ Q3 = 9

<u>So the 5 numbers are:</u>

  • 0, 4, 7, 9, 11

6 0
3 years ago
If x = 9 and y = -3, evaluate the following expression: = 6x - 8y ​
masha68 [24]

Answer: 78

Step-by-step explanation:

Step 1:

Substitute the variables in:

6(9) - 8(-3)

Step 2:

Multiply to get rid of the parentheses:

54 - -24 = 54 + 24 (the two negatives cancel out)

Step 3:

Add, and then you're done:

54 + 24 = 78

hope this helps :)

8 0
2 years ago
Clara is asked to find the surface area of a sphere which has radius​ r, of 18 in. She says the surface area is 226.08 in. squar
anygoal [31]

Answer:

The surface area of the sphere is approximately 4071.5.

Step-by-step explanation:

You can find the surface area of a sphere using this formula: A=4πr^2!

Answer:

C. Clara did not square the radius when solving.

Step-by-step explanation:

She likely solved it like so:

18 x 3.14 = 56.52

56.52 x 4 = 226.08

Through this process, she forgot to square the radius!

5 0
3 years ago
Unit 8: Right Triangles &amp; Trigonometry<br> Homework 2: Special Right Triangles
Marrrta [24]

Answer:

What is the answer please help me

Step-by-step explanation:

The equation of a line passing through the point (3,2) and(2, 3) is__

4 0
3 years ago
Which inequality models this problem?
Tasya [4]

Answer:

550w

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • How to simplify 4(2a)+7(-4b)+(3×c×5)
    14·2 answers
  • Brayden and gavin were playing touch football against cole and freddy touchdowns were worth 7 points.brayden and gavin scored 7
    13·1 answer
  • Alejandra made the number pattern shown below.
    9·1 answer
  • The sequence an = one third(3)n − 1 is graphed below: coordinate plane showing the points 2, 1; 3, 3; and 4, 9 Find the average
    7·2 answers
  • Solving Linear Equations Unit Test 16 of 20Items Item 16 Gold has a density of 0.70 pounds per cubic inch and copper has a densi
    9·1 answer
  • The original box of cereal had 16 grams of sugar per serving. The new box of cereal has 25% less sugar. How many grams of sugar
    7·1 answer
  • Where do i put parantheses into 140/2+12-4x2=2
    10·1 answer
  • Pls help I need the answer
    13·1 answer
  • 2. Patients arrive at a hospital accident and emergency department at random follow a
    14·1 answer
  • A 10-meter ladder leans against the wall. It is 5 meters from the base of the wall. How high, h, does the ladder reach to the ne
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!