plz besties can you help me
a) show that k lies between - 8 and 1 in the following inequality
[tex] {k}^{2} + 7k \leqslant 8[/tex]

Answers

Answer 1

Answer:

-8≤k≤1

Step-by-step explanation:

k²+7k-8≤0

(k+8)x(k-1)≤0

k1= -8

k2= 1

-8≤k≤1


Related Questions

Please help me. Pleaseeeeeeee

Answers

Answer:

Step-by-step explanation:

To solve for the measure of Angle N with the given side lengths, you need to find the inverse tangent (tan^-1). You use the tangent because you have the opposite and adjacent side lengths of the angle.

The step by step solution:

tan(<N)=1.7/6.7

<N=tan(^-1)1.7/6.7

<N=14 degrees

Alice is standing on the roof of a 150 ft building. She looks down at an angle of depression of 15 degree and sees her friend bianca. How far away from the building is bianca

Answers

Answer:

559.70 ft

Step-by-step explanation:

Let D be the distance between building and Bianca.

Height of building H = 150 ft

Let there be a triangle ABC where, AC = height of building H= 150ft, AB = distance between Alice and Bianca and BC = D and therefore, ∠ABC = 15°.

Now in Triangle ABC , tanB = AC/BC

therefore, tan15° = 150/D

D = 150/tan15° = 559.70 ft

Therefore, the distance between building and Bianca D = 559.70 ft

Which scatterplot shows the correct division for using the Area Method to draw the trend line?

Answers

Answer:

c

Step-by-step explanation:

c

Answer:

c

Step-by-step explanation:

edge 21

Hal read 114 pages of his book during vacation. This was 60 percent of the book. How many pages does Hal have left to read

Answers

Answer:

76

Step-by-step explanation:

Let number of pages=x

60% of x=114

x=114×100/60=190

pages left=190-114=76

PLEASE HELP PLEASEEEEEEEEEEEEEEEEE​

Answers

The answer would be D=2

Answer:

B

Step-by-step explanation:

3(d+2)-12d-2

3d+6-12d-2

3d+6-12-2

3d+4-12d= -9+4

River C is 300 miles longer than River D. If the sum of their lengths is 5, 570 miles, what is the length of each river? Show ALL work!​

Answers

Answer:

River C. is 3,085 miles long.

River D. is 2,485 miles long.

Step-by-step explanation:

1. Divide 5,570 by 2. Your answer will be 2,785.

2. Add 300 to 1 of your 2,785, and subtract 300 from the other.

3. You will have 3,085 and 2,485. If you add them together, you will have 5,570. This confirms that these two numbers are your answers.

4. You have your answer!

how many times larger is 60 million than 50 million

Answers

Answer is 1/6
This is because 60/50 equals 6/5 which means it’s only 1/6 larger

1.


A. 4.4%

B. 104.1%

C. 4.2%

D. 0.042%

Answers

Answer:

D. 0.042%

Step-by-step explanation:

YOUR ANSWER

Graphical form: T%2Ahef%2Aor%2Amu%2Alar=A%5EP-1g%2Aiv%2Aest%2Ahei%2Ant%2Aer%2Aes%2Atr%2Aat%2Aer simplifies to T%2Ahef%2Aor%2Amu%2Alar-A%5EP%2Bg%2Aiv%2Aest%2Ahei%2Ant%2Aer%5E2%2Aes%2Atr%2Aat=0

Text form: T*hef*or*mu*lar=A^P-1g*iv*est*hei*nt*er*es*tr*at*er simplifies to T*hef*or*mu*lar-A^P+g*iv*est*hei*nt*er^2*es*tr*at=0

Cartoon (animation) form:  

For tutors: simplify_cartoon( T*hef*or*mu*lar=A^P-1g*iv*est*hei*nt*er*es*tr*at*er )

If you have a website, here's a link to this solution.

DETAILED EXPLANATION

Look at .

Remove extraneous '1' from product highlight_red%28+1+%29

It becomes T%2Ahef%2Aor%2Amu%2Alar=A%5EP-g%2Aiv%2Aest%2Ahei%2Ant%2Aer%2Aes%2Atr%2Aat%2Aer.

Look at .

Reduce similar several occurrences of highlight_red%28+er+%29 to highlight_green%28+er%5E2+%29

It becomes .

Look at .

Moved these terms to the left highlight_green%28+-A%5EP+%29,highlight_green%28+g%2Aiv%2Aest%2Ahei%2Ant%2Aer%5E2%2Aes%2Atr%2Aat+%29

It becomes .

Result: T%2Ahef%2Aor%2Amu%2Alar-A%5EP%2Bg%2Aiv%2Aest%2Ahei%2Ant%2Aer%5E2%2Aes%2Atr%2Aat=0

pls help pls pls help

Solve the problem below and explain your process.


If the area of a rectangle is (15x2 - 16x - 15) square feet, and its length is (3x - 5) feet,find its width.

Answers

Answer:

Step-by-step explanation:

x^2 + 8x +15 is the area

x+5 is the length

x+3 is the width

(x+5)(x+3)=

x^2 + 3x +5x +15

x^2 +8x + 15

one more question, sorry can someone please help?​

Answers

Answer:B

Step-by-step explanation:

Honestly when I did the math I got closest to b so I think it's B hope his helps

help all questions are in the picture ​

Answers

Answer:

5. 2=1+1

6. 0= -3*0

7.2=3*0+2

Which polynomial correctly combines the like terms and puts the given polynomial in standard form?

1/3x + 8x^4 - 2/3x^2 - x

A. 8x^4 - 1/3x^2 + 2/3x

B. 8x^4 + 2/3x^2 + 2/3x

C. 8x^4 - 2/3x^2 - 2/3x

D. 8x^4 - 2/3x^2 - x

Answers

Answer:

c

Step-by-step explanation:

The answer is c because none of the other aren’t right

PQRS is a parallelogram. Solve for x.
Plz help

Answers

Answer:  

The opposite sides of a parallelogram are congruent, then

19x - 9 = 13x + 15 ( subtract 13x from both sides )

6x - 9 = 15 ( add 9 to both sides )

6x = 24 ( divide both sides by 6 )

x = 4

---------------------------------------------

Consecutive angles are supplementary, sum to 180° , that is

10y - 37 + 4y + 7 = 180

14y - 30 = 180 ( add 30 to both sides )

14y = 210 ( divide both sides by 14 )

y = 15

Then

∠ R = 10y - 37 = 10(15) - 37 = 150 - 37 = 113°

Then

∠ P = 113° ( opposite angles are congruent )

Step-by-step explanation:

I WILL CROWN YOU BRAINLIEST I NEED HELP ASAP PLS PLS PLSSSSSS tysm to whoever helps me

Answers

Answer:

400

Step-by-step explanation:

Answer:gbfcfrfrfrfrddr

Step-by-step fgggghhhhh:

Which exponential equation is equivalent to this logarithmic equation?
log_(x)5+log_(x)12=7
A. 7^x=17

B. 7^x=60

C. x^7=60

D. x^7=17

Answers

Answer:

B or A

Step-by-step explanation:

How long does it take an account with a principal of 400 to earn $60 in interest at a simple annual interest rate of 3% It takes_ years

Answers

Answer:

It will take 5 years

Step-by-step explanation:

Have a great day!

The following table shows a proportional relationship between X and Y
X Y
2 9
5 22.5
8 36
Write an equation to describe the relationship between X and Y

Answers

22.5-9= 13.5
36-22.5=13.5

therefore the relation would show a Linear graph because the first differences are the same.

Which statement about the numbers 22.407 and 22.416 is true? 22.407 = 22.416 because the values of the 4 in the tenths places are equal. 22.407 > 22.416 because the value of the 7 in the thousandths place is greater than the value of the 6. 22.407 = 22.416 because the values of the 2 in the ones places are equal. 22.407 < 22.416 because the value of the O in the hundredths place is less than the value of the 1.​

Answers

Answer:

22.407 < 22.416 because the value of the 0 in the hundredths place is less than the value of the 1.

SHOW ANSWER

Step-by-step explanation:

Answer:

The last answer choice

Step-by-step explanation:

22.407 < 22.416

evaluate:

35/65 x 1/7

Answers

Answer:

[tex] \frac{1}{13} [/tex]

Step-by-step explanation:

[tex] \frac{35}{65} \times \frac{1}{7} \\ = \frac{5}{65} \\ = \frac{1}{13} [/tex]

This is your answer :))

The more of his coworkers who attend the picnic, the more veggie burgers he will prepare. Which of the variables is independent and which is dependent?

Answers

Answer:

The dependent variable is burgers and independent variable is coworkers.

Step-by-step explanation:

Given: The more of his coworkers who attend the picnic, the more veggie burgers he will prepare.

To find: dependent and independent variables

Solution:

The value of the independent variable remains unaffected with changes in other variables.

The value of the dependent variable depends on the value of the independent variable.

Here,

The dependent variable is burgers and the independent variable is coworkers.

(number of burgers depend on the number of coworkers)

Check all the equations that apply to meet the Segment Addition Postulate in segment QA. QP=3x+7, PA=3x+2 and QA=32
Asse
MA
MARS
MAFS
3x-23=-3x

Answers

Answer:

J

Step-by-step explanation:

convert -350 degrees in radians

Answers

Answer:

-(350 degrees) =-(350 degrees) =-6.10865238 radians

Answer:

-35π/18 radians

Step-by-step explanation:

Find (y+3)(y^2+8y-2)

Answers

Answer:

the answer is y^3+11y^2+22y-6

Answer:

y³ + 11y² + 22y - 6

Step-by-step explanation:

(y + 3)(y² + 8y - 2)

y(y² + 8y - 2)+ 3(y² + 8y - 2)

y³ + 8y² - 2y + 3y² + 24y - 6

y³ + 11y² + 22y - 6

need help ASAP !!!

[tex] \sqrt{95 \times 19 \times 5} [/tex]

Answers

Answer:

the answer is 9025

Step-by-step explanation:

[tex] \sqrt{95 \times 19 \times 5 \\} 95[/tex] it equal 95

HELP ASAP I GIVE BRAINLISTE

Answers

Answer:A

Step-by-step explanation:

Dotted line means less than so it has to be A

Answer:

Step-by-step explanation:

How many tenths are equivalent to 2/5

Answers

4/10. Just have to look up what fractions are equivalent to 2/5 and look at the number that has 10 as a ‘denominator’

Please help I do not know how to do this right answer only.

Answers

Answer:

x = 58

Step-by-step explanation:

that is a 90 degree angle - 32 degrees = 58 degrees

Henry is making a recipe for biscuits.A recipe calls for 5/10 kilogram flour and 9/10 kilogram sugar.If henry measures correctly and combines the two amounts,how much flour and sugar will he have. Show your work

Answers

Answer: [tex]\dfrac{14}{10}\ kg[/tex]

Step-by-step explanation:

Given

Henry has [tex]\frac{5}{10}\ kg[/tex] of flour and [tex]\frac{9}{10}\ kg[/tex] of sugar

If henry added the two amounts, the net weight of the two is

[tex]\Rightarrow W_{net}=\dfrac{5}{10}+\dfrac{9}{10}\\\\\Rightarrow W_{net}=\dfrac{5+9}{10}=\dfrac{14}{10}\ kg\ \text{or}\ \dfrac{7}{5}\ kg[/tex]

find the area of each composite figure​

Answers

Answer:

48 times 14

Step-by-step explanation:

FILL THIS OUTTTTT PLZZZZ

Answers

Answer:

3.5

Step-by-step explanation:

3.5 + 3.5 = 7

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