answer.
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
Oksanka [162]
2 years ago
3

Add the two expressions. 3.2x−6 and −5.6x+4 Enter your answer, in simplified form, in the box.

Mathematics
1 answer:
Fofino [41]2 years ago
6 0

Answer: The simplified form is

-2(1.2x+1)

Explanation:

Since we have given that

3.2x-6\ and\ -5.6x+4

We need to add the two expression :

3.2x-6-5.6x+4

Now, by grouping the like terms :

3.2x-5.6x-6+4

Now, we add the like terms to each other:

-2.4x-2

To simplify we can take 2 as common factor and a negative sign too :

-2(1.2x+1)

Hence, the simplified form is

-2(1.2x+1)


You might be interested in
An isosceles triangle has base 6 and height 11. find the maximum possible area of a rectangle that can be placed inside the tria
svetoff [14.1K]
The area of the triangle is 33
5 0
2 years ago
Angharad had an operation costing $500 She was in hospital for x days The cost of nursing care was $170 for each day she was in
Ket [755]

Answer:

a) Total cost = 500 + 170x

b) 11 days

Step-by-step explanation:

Given:

(a)

Number of days in hospital = x

Cost of operation = $ 500

Cost of nursing per day = $170

∴ Cost of nursing for x days = $ 170x

Therefore, the expression for total cost of her operation and nursing care is given as,

C=500+170x, where C is the total cost.

(b)

Given:

Total cost of operation = C=\$ 2370

Using the expression obtained in (a), we solve for x.

C=500+170x

Plug in 2370 for C and solve for x. This gives,

2370=500+170x\\ 170x=2370-500\\ x=\frac{1870}{170}\\x=11

Therefore, Angharad stayed in hospital for 11 days.

7 0
2 years ago
The instructor’s friend also plans to rent an apartment in the same complex. Use the graph to identify the y-intercept and the s
Marta_Voda [28]

Answer:

The y-intercept is 3000. The slope is -275. Therefore, your equation in slope intercept form is y = -275x +3000.

Step-by-step explanation:

Y intercept is found where x = 0 or on the y axis, so the only place on this graph where x = 0 and there is a number on the y axis is at (0, 3000), making 3000 your y intercept. The slope is figured from two points, and taking y2-y1/x2-x1. This would give you 3000-2450/2-0 which is -550/2 which is -275. That's your slope. Slope intercept form is y = mx+b, where m is the slope and b is the y intercept. Just plug in, and you get y = -275x+3000

4 0
2 years ago
Read 2 more answers
Which is the equivalent of 12.42 written in DMS form?
nika2105 [10]
12.42

12°+.42(60)

12°25.2'

12°25'+.2(60)

12°25'12"
3 0
2 years ago
Read 2 more answers
Is rap music more popular among young Indians than among young Asians? A sample survey compared 634 randomly chosen Indians aged
BabaBlast [244]

Answer:

Step-by-step explanation:

Confidence interval for the difference in the two proportions is written as

Difference in sample proportions ± margin of error

Sample proportion, p = x/n

Where x = number of successes

n = number of samples

For the indians,

x = 368

n1 = 634

p1 = 368/634 = 0.58

For the asians

x = 130

n2 = 567

p2 = 130/567 = 0.23

Margin of error = z√[p1(1 - p1)/n1 + p2(1 - p2)/n2]

To determine the z score, we subtract the confidence level from 100% to get α

α = 1 - 0.95 = 0.05

α/2 = 0.05/2 = 0.025

This is the area in each tail. Since we want the area in the middle, it becomes

1 - 0.025 = 0.975

The z score corresponding to the area on the z table is 1.96. Thus, confidence level of 95% is 1.96

Margin of error = 1.96 × √[0.58(1 - 0.58)/634 + 0.23(1 - 0.23)/567]

= 1.96 × √0.00038422713 + 0.00031234568)

= 0.052

Confidence interval = 0.58 - 0.23 ± 0.052

Confidence interval = 0.35 ± 0.052

8 0
2 years ago
Other questions:
  • timothy went to a baseball game. after the game, he wanted to ride the bus home. the red line and the blue line buses both both
    14·2 answers
  • Karen had 2 spools of wire. Each spool had 15 7/8 yards of wire. Karen used 3 yards of wire from each spool. How many yards of w
    9·2 answers
  • Tristan records the number of customers who visit the store each hour on a Saturday. His data representing the first seven hours
    15·2 answers
  • The ideal width of a certain conveyor belt for a manufacturing plant is 50 in. Conveyor belts can vary from the ideal width by 7
    9·1 answer
  • Line AB and BC for a right angle at point B. If A(-3,4) and B(4,4) what is the equation of line BC?
    12·2 answers
  • Juan purchased an antique that had a value of $200, at the time of purchase. Each year, the value of the antique is estimated to
    14·1 answer
  • Calvin evaluated Negative two-thirds times 5 and one-sixth using the steps below. Step 1: Negative two-thirds time (5 + one-sixt
    10·2 answers
  • Vince and 11 of his friends went out for pizza on Saturday night to celebrate Vince’s birthday. The cost of the pizza and soft d
    14·2 answers
  • Find the area of the polygon with the given vertices. J(−3, 4), K(4, 4), L(3,−3)
    14·1 answer
  • Beginning with a regular hexagon, a 6-pointed star is formed by constructing equilateral triangles, whose sides are the same len
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!