solve k/2 - 2k + 1=7

Answers

Answer 1

Answer:

=

4

Step-by-step explanation:

2

2

+

1

=

7

Answer 2

Answer:

Ok that other answer is invalid the actual answer is = -4

Step-by-step explanation:

If you need a step by step let me know :)


Related Questions

HELLLLLPPPPPPPP MY SISTER HAS LATE HOMEWORKKKKK she need help with number 4. the empty space is the part where She need to show how She got her answer so if someone could help that would mean the world to me and her

Answers

Answer:

13

Step-by-step explanation:

13x4=52 that would be in the check section or whatever but she did really good

Answer:

Your sister did the equation perfectly. That's exactly how I would work it, and the answer is 13.

what is the greatest common factor of 3/5

Answers

Answer:

15

Step-by-step explanation:

3 × 5 = 15

Hope this helped <3

the answer is 3/5.. like i’m not joking

Put these integers in order from least to greatest.
34, 0, – 17, - 56 , 5

Answers

Answer: -56 -17 0 5 34

Step-by-step explanation:

The more left you go on a number line the smaller it is

Answer:

-56,-17,0,5,34

Step-by-step explanation:

negatives are less than the positives so you start with the greatest negative and then go to the positives. The 0 is the origin.

A parabola can be drawn given a focus of (-4, -5) and a directrix of y=3. Write the equation of the parabola in any form.

Answers

Answer:

The equation of the parabola is (x + 4)² = -16(y + 1)

Step-by-step explanation:

The standard form of the equation of the parabola is (x - h)²  = 4p(y - k), where

The vertex of the parabola is (h, k)The focus is (h, k + p)The directrix is at y = k - p  

∵ The focus at (-4, -5)

h = -4

∴ k + p = -5 ⇒ (1)

∵ The directrix at y = 3

∴ k - p = 3 ⇒ (2)

→ Add equations (1) and (2) to find k

∴ 2k = -2

→ Divide both sides by 2 to find k

k = -1

→ Substitute it in equation (1) to find p

∵  -1 + p = -5

→ Add both sides by 1

∴ -1 + 1 + p = -5 + 1

p = -4

→ Substitute the values of h, k, and p in the formula above

∵ (x - -4)² = 4(-4)(y - -1)

∴ (x + 4)² = -16(y + 1)

The equation of the parabola is (x + 4)² = -16(y + 1)

what does nonlinear mean?

Answers

It’s not linear




............

Answer:

Not denoting, involving, or arranged in a straight line.

Step-by-step explanation:

I looked it uo on google

im not SmArT

select the equation that represents the problem. Let × represent the unknown number.

Ms. Weaver bought 216 pencils for her class. The pencils came in packs of 24. How many packs did she buy?

A. 216× = 24

B. 216 - × = 24

C. × + 24 = 216

D. 24× = 216

Answers

Answer:

the is option d cause big number is divided by small ones.

Step-by-step explanation:

hope it's right

ddddd ddddddd ddddd dddd

please please please help me i’ll mark brainliest

Answers

Given:

The graph of a function f(x).

To find:

The solution set for f(x)>0 and f(x)≤0.

Solution:

From the given graph it is clear that, the function intersect the x-axis at 3 points, i.e., x=-4, -3 and -2.

The graph is above the x-axis before -4 and between -3 and -2.

So, the solution set for f(x)>0 is [tex](-\infty,-4)\cup (-3,-2)[/tex].

The graph is below the x-axis between -4 and -3; and after -2. For f(x)≤0, those values are in the solution set for which f(x)=0, i.e., x-intercepts. So, we use close brackets in the interval notation.

So, solution set for f(x)≤0 is [tex][-4,-3]\cup [-2,\infty)[/tex].

1.73 to 1.52 write fraction in simplest form

Answers

Answer:

I think that the answer that 1.13815789. I hope that this helps:)

Step-by-step explanation:

What is the answer to -7(-6)

Answers

Answer:

42

Step-by-step explanation:

Hope this helps and have a great day! :)

Answer: -7(-6) is 42

hope this helps :)

Step-by-step explanation:

when You multiply two negative numbers, the answer is positive.

A truck enters a stretch of road that drops 4 meters
in elevation for every 100 meters along the length of
the road. The road is at 1,300 meters elevation where
the truck entered, and the truck is traveling at
16 meters per second along the road. What is the
elevation of the road, in meters, at the point where
the truck passes t seconds after entering the road?

Answers

Answer:

The elevation would lower in total 52 feet.

Step-by-step explanation:

Answer:

it would be 52 feet

Step-By-Step explanation

this is my question​

Answers

Answer:

5*0.2=1

Step-by-step explanation:

The answer is 0.2

Brainliest pls

HELP PLS! It’s question 15

Answers

Answer:

A: C = 15N

Step-by-step explanation:

30/2 = 15 (the cost of 1 class)

(tan x - 1) (sin^2x - 3) =0
no answer necessary

Answers

Answer:

0

Step-by-step explanation:

Thx

HELP ME PLS :(

Janis is 65 inches tall. What is her height in centimeters? (2.54 cm = 1 inch)

Answers

Answer:

I think the answer 165.1 cm tall

Step-by-step explanation:

multiply 2.54 by 65

Answer:

165.10cm

Step-by-step explanation:

i think so

-6 + (-3) - (-2) =
A. 11
B. 7
C. -7
D. -11​

Answers

Answer:

C. -7

Step-by-step explanation:

Answer:

C. -7

Step by step explanation:

-6+(-3)-(-2) When there is a in front of an expression in parentheses, the expression remains the same and when there is a in front of an expression in parentheses, change the sign of each term in the expression
-6-3+2= -7

marissa can read 15 pages in 5 minutes and 30 seconds how long will it take for her to read 105 pages ​

Answers

Answer:

38.5 minutes

Step-by-step explanation:

105 divided by 15=7

7 x 5 minutes and 30 seconds is 38.5 minutes

a bow bear could watch 44 in 4 seconds at this rate how far can a brown bear run in 20 seconds​

Answers

Answer:

111 is a great place to be your friend

Step-by-step explanation:

I am not it to 3rd or 3rd to be friends

Answer:

220

Step-by-step explanation:

44 divided by 4 = 11

11 times 20 = 220 so that's the answer

BRAINLIEST PLEASE

Help now please :))))

Answers

Answer: the last one

Step-by-step explanation:

For every 3 shaded, there are 2 unshaded

What is the quotient 8 x 4 − 12 x 2 − 16 x 4 x , where x ≠ 0 ?

Answers

Answer:

that = 8 and if you want to see more you can go on

Estimate the quotient for 5,738 divided by 21

Answers

Answer:

its 273 rounded but say 270

Step-by-step explanation:

The estimate is 270.

The graph of the equation x + 3y = 6
intersects the y-axis at the point whose
coordinates are: (Find the y intercept)
which answer?
(0,2)
(0,6)
(0,18)
(6,0)


Answers

Plug in 0 for x
0 + 3y = 6
Divide by 3
Y = 2
The point is (0,2)

Can someone please help me with this question i have 3 minutes left

Answers

Answer:

It will cost 11 cents a day.

Step-by-step explanation:

1.98/18=11

plzz have brainiest

What is the y coordinate of the solution

Answers

Answer:

8

Explanation:

3x-7=x^2-7x+18

X= 5

Y=3(5)-7 aka 15-7

=8

True or False: The commutative property allows you to change the order of an addition problem and division problem.
<333

Answers

Answer:

True!!

Step-by-step explanation:

The commutative, associative, and distributive properties help you rewrite a complicated algebraic expression into one that is easier to deal with. When you rewrite an expression by a commutative property, you change the order of the numbers being added or multiplied.

Hope this helps!! Please consider marking brainliest! Have a good one!!

Answer the question for brainliest.
(Simplify Please)

Answers

[tex]1 \frac{2}{5} m - \frac{3}{5} ( \frac{2}{3} m + 1)[/tex]

[tex]\frac{7}{5} m - \frac{6}{15} m - \frac{3}{5} [/tex]

[tex] \frac{21}{15} m - \frac{6}{15} m - \frac{3}{5} [/tex]

[tex]( \frac{(21 - 6)m}{15} ) - \frac{3}{5} [/tex]

[tex] \frac{15}{15} m - \frac{3}{5} [/tex]

[tex]1m - \frac{3}{5} [/tex]

[tex]m - \frac{3}{5} [/tex]

Helppppppp:))))))).......

Answers

Answer:

y=6 is the correct answer

6/ PLEASE HELP ME ASAP.

Answers

Answer:

40

Step-by-step explanation:

In the minute number 2, you can see the intersection point in 40 packs.

Best regards

3x + y = 15 What is the solution of this system of equations? (5x+2y=-4​

Answers

Answer:

x=34    y=-87     (34,-87)

Step-by-step explanation:

3x+y=15              rewrite to solve for y  ----->    y=15-3x

5x+2y=-4

Plug y=15-3x into 5x+2y=-4

So, 5x+2 (15-3x)=-4

Distribute: 5x+30-6x=-4

Combine like terms: 30-x=-4

Solve for x   -x=-34

Solve for x   x=34

Then, to solve for y, plug "x" into 3x+y=15

So, 3(34)+y=15

Distribute: 102+y=15

Solve for y  y=-87

Multiply. Write your answer as a fraction in simplest form. −1(4/5)=

Answers

Answer:

-4/5

Step-by-step explanation: When you multiply anything by one it is always itself but in this case the one has a negative in front of it so when you multiply a positive number by a negative it makes the number negative.

-1 * 4/5

-4/5

The total answer for this question is -4.5

Find the median: In a particular year, approximately 1.7 million people took the mathematics section of a college achievement test. Of these, 44% scored less than 490, 45% scored less than 500, 48% scored less than 510, 51% scored less than 520, and 57% scored less than 530. In what interval is the median score? The median score is in the interval â–¼(Choose one).

Answers

Answer:

the median score would be between 510 and 520

Step-by-step explanation:

The computation of the median score is shown below

In the case of the continuous probability distribution, the median value is the mid value in which the number is equal to fall to above or below it

Here

P(X = median) = 0.5 = 50%

So the median score would be between 510 and 520

Hence, the same is to be considered

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