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
MissTica
2 years ago
15

Andy and Sylvie each incorrectly simpilfied the expression: -3-4(2x-3).

Mathematics
2 answers:
NeTakaya2 years ago
5 0

1. Observe problem

2. Simplify

-3-4(2x-3)

expand by distributive property

-3-8x+12

addition and subtraction

-8x+9

I have no idea what Andy And Sylvie were doing, so therefore...

I don't know which brain cell in there head is dysfunctional.

Rasek [7]2 years ago
5 0

Answer:

-9 - 8x

Step-by-step explanation:

Andy multiplied incorrectly it should have been -4*2x, -4*-3

Sylvie forgot to multiply both sides she did -4*2x but forgot to do -4*-3

The correct answer should be...

-3-4(2x-3)

-3 - 8x + 12

-9 - 8x

You might be interested in
An experiment requires the population of the bacteria to reach 2 million before the experiment can begin. The reproduction rate
Furkat [3]

Answer:

about 6 hours

Step-by-step explanation:

8( {7}^{x} ) = 2( {10}^{6} )

{7}^{x}  = 250000

x =  \frac{ ln(250000) }{ ln(7) }  = 6.39

6 0
2 years ago
Find the perimeter of a rectangle that has a length of 2x +7 and a width of 5x.
Harlamova29_29 [7]

Answer:

14x + 14

Step-by-step explanation:

Perimeter = 2( L + W)

2(2x+7 + 5x) = 2(7x + 7)

distributive property

= 14x + 14

3 0
3 years ago
Read 2 more answers
What is the perimeter of the figure to the nearest tenth of a millimeter?
Pavlova-9 [17]
We have to calculate the perimeter of the figure to the nearest tenth of a millimeter. This figure is made of a rectangle and a half of a circle. The first figure has the perimeter: 3 + 6 + 3 = 12 mm. The second figure has the perimeter: 2 * Pi * r / 2 = Pi * r ; and the radius : r = 6/2 = 3 mm. So Pi * 3 = 3.14 * 3 = 9.42. Fimally : 12 + 9.42 = 21.42 or 21.4 to the nearest tenth. Answer: C. 21.4 millimeters<span>. </span>
7 0
2 years ago
A test of H0: p = 0.5 versus Ha: p &gt; 0.5 has the test statistic z = 1.15. Part A: What conclusion can you draw at the 5% sign
Nadya [2.5K]

Answer:

Part A: The null hypothesis failed to be rejected.

Part B: The null hypothesis failed to be rejected.

Step-by-step explanation:

We have an hypothesis test with null and alternative hypothesis H0: p = 0.5 versus Ha: p > 0.5, which has the test statistic z=1.15.

Part A: If the significance level is 0.05, the conclusion depends on the P-value.

If the P-value is below 5%, the null hypothesis is rejected.

The P-value for this right-tailed tes and z=1.15 is:

P-value=P(z>1.15)=0.125

The P-value is bigger than the significance level, so the effect is not significant and the null hypothesis is failed to be rejected.

Part B: In this case, the significance level is 0.01 and, as the alternative hypothesis is defined with an unequal sign, the test is two-tailed.

This changes the way we calculate the P-value, as we need to compute the two tails.

The P-value is:

P-value=2P(z>1.15)=0.25

The P-value is bigger than the significance level, so the effect is not significant and the null hypothesis is failed to be rejected.

5 0
3 years ago
How many times does 6 go into 110
juin [17]
6 goes into 110 approximately 18 times.
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the answer to number 1
    10·2 answers
  • Do two natural numbers always have a gcf
    14·2 answers
  • (2)<br> Twelve theater fickets<br> Price: $6.79 each<br> Tax Rate: 5%
    15·1 answer
  • Maria by 1 and 2/5 pounds of lunch meat for $3.36 how much would 2 3/4 lb of lunch meat cost
    11·1 answer
  • 2ln3+ln(x+1)=0<br> Solve for x
    12·2 answers
  • Simplify to create an equivalent expression. 8−4(−x+5) Choose 1 answer: A 4x−12 B −4x−12 C 4x+13 D 4x+5
    5·1 answer
  • ZABD and ZDBC are supplementary angles.
    10·2 answers
  • I’m a right triangle which of the following is the definition of the cosine ratio?
    14·1 answer
  • 1 point
    14·1 answer
  • List all of the terms in equation (x - 5)(2x + 3)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!