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
DanielleElmas [232]
3 years ago
7

Please help it is due today will give brainliest

Mathematics
1 answer:
stepladder [879]3 years ago
5 0

Answer:

25/-10

Step-by-step explanation:

you plug -5 as b so -5x-5=25

and then plug -15 as a and add 5 so u get -10

You might be interested in
Which value is NOT a solution of 8x3 – 1 = 0?
Tpy6a [65]

<u><em>Note: As you may have unintentionally missed to add the value choices. But, I would make sure to explain the concept so that you may improve your understanding in terms of solving these type of questions.</em></u>

Answer:

Any value other than the values x=\frac{1}{2},\:x=-\frac{1}{4}+i\frac{\sqrt{3}}{4},\:x=-\frac{1}{4}-i\frac{\sqrt{3}}{4} will not be a solution of 8x^3\:-\:1\:=\:0.

Step-by-step explanation:

Considering the equation

8x^3\:-\:1\:=\:0

Steps to solve the equation

8x^3-1=0

\mathrm{Add\:}1\mathrm{\:to\:both\:sides}

8x^3-1+1=0+1

\mathrm{Simplify}

x^3=\frac{1}{8}

\mathrm{Divide\:both\:sides\:by\:}8

\frac{8x^3}{8}=\frac{1}{8}

\mathrm{Simplify}

x^3=\frac{1}{8}

As

\mathrm{For\:}x^3=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt[3]{f\left(a\right)},\:\sqrt[3]{f\left(a\right)}\frac{-1-\sqrt{3}i}{2},\:\sqrt[3]{f\left(a\right)}\frac{-1+\sqrt{3}i}{2}

x=\sqrt[3]{\frac{1}{8}},\:x=\sqrt[3]{\frac{1}{8}}\frac{-1+\sqrt{3}i}{2},\:x=\sqrt[3]{\frac{1}{8}}\frac{-1-\sqrt{3}i}{2}

So,

x=\frac{1}{2},\:x=-\frac{1}{4}+i\frac{\sqrt{3}}{4},\:x=-\frac{1}{4}-i\frac{\sqrt{3}}{4}

Therefore,

Any value other than the values x=\frac{1}{2},\:x=-\frac{1}{4}+i\frac{\sqrt{3}}{4},\:x=-\frac{1}{4}-i\frac{\sqrt{3}}{4} will not be a solution of 8x^3\:-\:1\:=\:0.

Keywords: solution, value

Learn more about equation solution from  brainly.com/question/1679491

#learnwithBrainly

7 0
3 years ago
Please answer correctly !!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!
Ugo [173]

Answer:

Step 3  they took the square root incorrectly

Step-by-step explanation:

5 ( x-2)^2 +6 = 86

Subtract 6 from each side

5 ( x-2)^2 +6 -6= 86-6

5 ( x-2)^2  = 80

Divide each side by 5

5 ( x-2)^2  /5 = 80/5

(x-2)^2 = 16

Take the square root of each side

sqrt((x-2)^2)  = ±sqrt(16)

x-2 = ±4

4 0
3 years ago
What is the solution to 5-2x^2=-15?
Phantasy [73]
Isolate x.

-2x^{2}=-20
x^{2}=10
x=\sqrt{10}


6 0
3 years ago
She puts the gifts into a box. She puts a label on one side of the box.How many faces do not have labels?faces.
Kisachek [45]
A closed box has 6 faces.

There is 1 label on 1 face.

Subtract 1 from 6

6 - 1 = 5

5 faces is your answer


Hope this helps
3 0
3 years ago
Find the measure of angle Y for the kite showing below.
Dovator [93]
It should be 117.5 because in a kite, the angles all add up to 360, and since the remaining unknown angles are the same, you just subtract 38+87 from 360 and divide by 2
4 0
3 years ago
Other questions:
  • How to solve all of these​
    14·1 answer
  • Q5. A bumper bag of icing sugar weighs 23.4 kg
    12·1 answer
  • The circle below is centered at the point (8,4) and has a radius of length 4.
    7·1 answer
  • The lengths of the sides of a triangle are ​9, 12​, and 14. Classify the triangle as​ acute, right, or obtuse.
    14·1 answer
  • A heron is perched in a tree 50 feet above sea level. Directly below the heron, a pelican is flying 17 feet above sea level. Dir
    11·1 answer
  • two sides of a triangle measure to 20cm and 30cm. Which of the following could be measure by the third side
    8·1 answer
  • Help with this question -8=-16+n​
    6·1 answer
  • Work out an expression for the nth term of this sequence. 3, 11, 19, 27, …
    12·1 answer
  • if michaels score is 87, the class average is 82, and the standard deviation is 4. what is michaels z-score?
    12·1 answer
  • Solve the equation.<br><br> 3x-3(4+x)=3/4(3x+2)-1
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!