Mathematics High School

Solve.
x^2 - 5x - 8 = 0

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Answer 1

The values of x are : 6.27 and -1.27

Related Questions

I’ve tried but I don’t know what it is please help

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Answer: x=11

Step-by-step explanation:

I got this by 126-49=77. Then I divided 77 by 7 and got 11.

I need help with this?

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Answer:

1/2 because if a is 1 d is half of that so the answer is 1/2.

Please help me find the equivalent fractions!

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Answer:

7/9 = 14/18

4/10 = 16/40

3/12 = 9/36

8/10 = 4/5

12/16 = 6/8

18/21 = 6/7

Step-by-step explanation:

Answer:

7/9 is equivalent to 14/18

4/10 is equivalent to 16/40

3/12 is equivalent to 2/8

8/10 is equivalent to 4/5

12/16 is equivalent to 6/8

18/21 is equivalent to 6/8

Using Oliver’s table, how can you find the unit rate?

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Answer:

Is there a table I can see if I'll be able to help

Answer:

Oliver’s table indicates that for every increase of 2 strides, the distance he travels increases by 7 feet. So, the change in distance divided by the change in stride gives the unit rate.

Step-by-step explanation:

This Is The Sample Answer

5(2x+3)+2(4x –1)
I need help

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This is what I did. The overall answer is 18x+13

I NEED HELP WITH THIS ASAP!!! FOR BRAINLIEST LASTQ

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Answer:

Step-by-step explanation:

It's literally the same equation written in reverse, which according to the commutative property, can be done.

Answer: A

Step-by-step explanation:

For this problem, we know that A is the correct answer. A is the same as the given expression because it is the same, but the order is switched. When you multiply both of them, you would get the same answer.

We can eliminate B because [tex]\frac{2}{5}[/tex] should be positive, not negative.

We can eliminate C because the fraction should be [tex]\frac{2}{5}[/tex], not [tex]\frac{5}{2}[/tex].

We can eliminate D because (-1×-7) given you 7, not -7.

Therefore, A is the right answer.

which actions are most likely to lead to the discovery of new info

Answers

Answer:

the answer is D :3

Step-by-step explanation:

you must use the dividen to answer the question

The height of a stack of boxes varies directly with the number of boxes. A stack of 12 boxes is 15 feet high. How tall is a stack of 16 boxes.

Answers

Answer:

20 boxes

Step-by-step explanation:

12 boxes is 15 feet so 4 boxes is 5 feet

When x+2 = 1/5y is written in standard form, what is the value or B

Answers

Answer:

B=-1

Step-by-step explanation:

Standard form is Ax+By=C.

In this case, Ax is x, By is 1/5y, and C is +2.

To isolate the 2 (the C), subtract x from both sides of the equation:

x+2=1/5y

-x -x

2=-x+1/5y.

Now, the value of B, the x value, is -1.

Error Analysis: Find, describe & correct the error that a student has made while solving the equation: LaTeX: 4=-2\left(x-3\right)4 = − 2 ( x − 3 ) Step Number Equation 1 LaTeX: 4=-2\left(x-3\right)4 = − 2 ( x − 3 ) 2 LaTeX: 4=-2x-64 = − 2 x − 6 3 LaTeX: 4+6\:=\:-2x\:-\:6\:+\:64 + 6 = − 2 x − 6 + 6 4 LaTeX: 10\:=\:-2x10 = − 2 x 5 LaTeX: \frac{10}{-2}=-\frac{2x}{-2}10 − 2 = − 2 x − 2 6 LaTeX: -5=x

Answers

Given:

[tex]4=-2\left(x-3\right)[/tex]

To find:

The error that a student has made while solving the equation.

Solution:

We have,

[tex]4=-2\left(x-3\right)[/tex]

Using distributive property, we get

[tex]4=-2(x)-2(-3)[/tex]

[tex]4=-2x+6[/tex]

Subtract 6 from both sides.

[tex]4-6=-2x+6-6[/tex]

[tex]-2=-2x[/tex]

Divide both sides by -2.

[tex]1=x[/tex]

The value of x is 1.

In step 2, the distributive property is not used properly because when -2 is distributive with -3 then we get 6 instead of -6.

Therefore, the student has made error in step 2.

is it possible for two triangles to have the same angle measures but not be congruent?explain.

Answers

Answer:

Yes

Step-by-step explanation:

One triangle can be bigger then another and still have the same angle measure.

Yes, it is possible for two triangles to have the same angle measures but not be congruent.

What is congruency?

If two triangles are congruent, this means they are the same shape and the same size.

One triangle can be bigger than another and still have the same angle measure. For example, if there are two equilateral triangles all the angles are 60 degrees.

But one triangle is having a side of 10 units and the other triangle is having a side of 20 units means the second triangle is bigger than the first but the angle for both the triangles is 60 degrees.

Therefore, it is possible for two triangles to have the same angle measures but not be congruent.

To know more about congruency follow

https://brainly.com/question/2938476

#SPJ2

The original rectangle is 9 feet long and 3 feet wide. The
new rectangle is 1 foot wide. What was the scale factor to
go from the original rectangle to the new rectangle?

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I don’t rly understand the question 1 foot

Please and thank you

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Answer:

5 inches since you can divide 15 and 20 by 5

Answer:

yea im following this guy and just double checked yea 5

Step-by-step explanation:

gia puts 24 stickers into 4 equal groups how many stickers are there in each group Enter the correct answer in the box

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Answer:

Step-by-step explanation:

just do 24 divided by 4 and you get 6 and to check it do 6*4 and its 24

13. It takes a turtle 3 14 hours to walk 1 72 miles. How many hours does it take to walk one mile? (purple)

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Answer:

1.82558139535

Step-by-step explanation:

It takes turtle 314 hours to walk 172 miles.

We need to find for 1 mile how many hours

172 mile/172 is 1 mile

so ratio is 172

314/172= 1.82558139535

What is the Measure of angle ABE?

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if i’m seeing correctly, the cursor is covering a number for the measure of angle BCD. assuming that ABE is the same, as it looks, then it should be the number your cursor is covering.

The radius of a circle is 4 miles. What is the circle's area 3.14 for .

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Answer:

50.24

Step-by-step explanation:

4^2=16

16*3.14=50.24

Answer its 25.12

Step-by-step explanation:

PLEASE HELP I DONT UNDERSTAND WILL GIVE LIKE 20 POINTS

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Answer:

Step-by-step explanation:

11/4 <3

Answer:

11/4

Step-by-step explanation:

Hope this helps!

PLEEEEASE HURRY!!!!!!!!
FIGURE ABCD IS REFLECTED ABOUT THE Y-AXIS TO OBTAIN FIGURE A'B'C'D
WHICH STATEMENT BEST DESCRIBES THE RELATIONSHIP BETWEEN THE TWO FIGURES?
A: FIGURE ABCD IS SIMILAR TO FIGURE A'B'C'D
B: FIGURE ABCD IS BIGGER THAN A'B'C'D
C: THE MEASURE OF ANGLE D IS EQUAL TO MEASURE OF ANGLE A'
D: THE MEASURE OF ANGLE D IS EQUAL TO MEASURE OF ANGLE B'

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Answer:

pretty sure A

Step-by-step explanation:

A number is in expanded form: (9 x 10) + (6 x 1) + (2 x 1/100) + (3 x 1000) What is the number is standard form?

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Answer:

96.023 is the answer yeah

Factor the following trinomial completely, or state that the trinomial is prime.
3x^2+10xy + 8y^2

Answers

Answer:

(3x + 4y)(x + 2y)

Step-by-step explanation:

3x^2+ 10xy + 8y^2

All signs are positive, so we'll only look at positive factors of 3 and 8.

3 factors into 3 and 1.

8 factors into 4 and 2, and it also factors into 8 and 1.

I like to try closer factors in value, so I'll start with 4 and 2 for 8.

Try:

(3x + 2y)(x + 4y) = 3x^2 + 12xy + 2xy + 8y^2 = 3x^2 + 14xy + 8y^2

The middle term does not work. Switch 2y and 4y and try again.

Try:

(3x + 4y)(x + 2y) = 3x^2 + 6xy + 4xy + 8y^2 = 3x^2 + 10xy + 8y^2

It works.

Answer: (3x + 4y)(x + 2y)

The point Q (5,3) is translated 2 units left. What are the coordinates of the resulting point Q

Answers

Answer:

(3,3)

Step-by-step explanation:

Since it's to the left, and not up or down at all, the y-value does not change. The x-value, however, is affected. Since it's to the left, it is decreasing in value by 2 points. If it were to the right, it would increase in value to (7,3), since it'd be going further away from (0,0).

Answer:

Q = (3,3)

Step-by-step explanation:

Moving the point left moves the x value down 2.

5-2=3

Therefore, Q = (3,3)

Can someone please help me with this question? I don’t know what the answer is and I’m not sure

Answers

Answer:

you're right

Step-by-step explanation:

I checked by writing the first 5 terms

a1: 5

a2: 8

a3: 11

a4: 14

a5: 17

and then checked using the function to see if they matched up and they did

Nolan gave out a survey to some students in his school about their favorite color. Students could choose between red and purple. 238 of those surveyed said their favorite color was red. 66% of the students surveyed said their favorite color was purple. How many students were surveyed in total?

Answers

Answer:

700

Step-by-step explanation:

100%-66%=34%

34% equals the 238 that is red

238÷34%=7 people per percentage

7×66%= 462 students that chose purple

462+238=700 which should be the total amount of people surveyed.

Select all that apply.

Which of the following name an angle in the drawing?

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Answer:

ECB and CDE

Step-by-step explanation:

the others arent the same

If a player had the following cards what is the value of his hand?

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Wut r the following cards

d) What is the y-intercept of the roof? Describe where the peak of the roof is on
the x-y plane

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I need a picture or some information about the roof to help

Write the sentence as an equation.
251 is the same as 139 less than the product of a and 233

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Answer:

251 = 139 < 233a

I hope that this is correct and that it helps you

the value of 1 by 3- 1 by 2=

Answers

Answer:

the value of 1 by 3- 1 by 2 is 1

Step-by-step explanation:

it is one because 1 by 3 is 1*3

that equals to 3

then you do 1 by 2 (aka 1*2)

then it is 3-2 which equals to 1

Answers

28
4 (side of the square) x 7

Other Questions

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Solve. x^2 - 5x - 8 = 0

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Solve.
x^2 - 5x - 8 = 0