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
nata0808 [166]
3 years ago
8

Help me please thank you

Mathematics
1 answer:
KatRina [158]3 years ago
4 0

3a + b × a - b would be 3a² + ab + 3ab + b² =

3a² - 4ab - b² aka B.

You might be interested in
$6,000 is invested in two different accounts earning 3% and 5% interest at the end of one year to two accounts earn $220 in inte
Svetradugi [14.3K]
My answer: $2000 were invested at 5%

Let x amount of money was invested at 5% and (6000-x) amount was invested as 3%
6 0
3 years ago
A restaurant purchased 18 cases of hamburgers with 26 hamburgers in each case. Since that time they sold 73 hamburgers. How many
Lady bird [3.3K]

Answer:

395 Burgers.

Step-by-step explanation:

each crate has 26 burgers, if there are 18 crates its 18x26 which gives you 468 burgers. If they sold 73 after that, you subtract. 468-73= 395. They will have 395 burgers.

7 0
3 years ago
Evaluate 2/3x + 1/2 for x=3/4 (I just copied the exact question)
Travka [436]

Answer:

1

Step-by-step explanation:

(⅔)(¾) + ½

½ + ½

= 1

6 0
3 years ago
Can someone help me with 3,4 and 5? For 3 and 4 it's asking "what is the volume of each solid? Round to the nearest tenth if nec
Marianna [84]

Answer:

the answer 3,b

4,f

5,c

7 0
3 years ago
A dependent means t-test determines if the differences between scores on the pretest and posttest measures differ significantly
lara31 [8.8K]

A dependent means t-test determines if the differences between scores on the pretest and post-test measures differ significantly from Zero(0).

Benefits of pre-test measurements

This design is superior to the post-test-only control design because it adds pre-tests. Addition of pre-test: Improve your design ability to detect effects. You can investigate the impact of interventions on various sublevels of pretesting.

The design of the pre-test and post-test is similar to the in-subject experiment. In this experiment, each participant is first tested in control conditions and then in therapeutic conditions.

Learn more about pretesting. here: brainly.com/question/968894

#SPJ4

6 0
2 years ago
Other questions:
  • it costs LE Stor $10 to buy a shirt. the store sells the shirt for 2 1/2 times its cost. what is the profit for 100 of these shi
    15·2 answers
  • There are (713)3 ⋅ 70 strawberries in a field. What is the total number of strawberries in the field? 1 716 717 739
    5·2 answers
  • Fwerwer34c43t45f345t45f3554t4f556gf5f5f6g65rtytwhat is -4+1/5
    7·1 answer
  • What is the value of x?
    15·1 answer
  • The equations of sides of a triangle are 2x-3y+5=0, 2x+y=7 and 2x+5y=3. Find the coordinates of the vertices.
    14·1 answer
  • The Lee family pays an instructor $50 for Joylin’s 40-minute drum lesson. How much does the instructor charge per minute for the
    10·2 answers
  • Plz HELP I need thi done in 5 minutes. I won't be able to play in my volleyball game tonight if I don't pass this.
    8·1 answer
  • Solve by substitution y=-2x y=8x-10
    9·1 answer
  • Solve the following problem. (Assume that all items are equally priced.)
    5·1 answer
  • Find the missing number​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!