what is a solution of √7-2x+5=8

Answers

Answer 1

Answer: √7 / 2 - 3/2

Step-by-step explanation:

√7-2x+5=8
=>  -2x + √7 = 3
=> x =  √7 / 2 - 3/2


Related Questions

A car salesperson receives a 7% commission per car sold. How much commission would the salesperson receive when selling a car for $24000?

Answers

Answer:

$1680

Step-by-step explanation:

To find 7% of 24000, convert 7% to a decimal and multiply. Percent means per hundred, 7% is 7/100 is .07

.07 × 24000

= 1680

factor 2x^3 + 5x^2y - 2xy^2 - 5

Answers

Answer:

The expression is not factorable with rational numbers.

Hope this helps.

This is not a factorable with rational numbers . have a good day

Find the common ratio for this geometric sequence.
72, 12, 2, 1/3, 1/18

Answers

Answer:

6:1. Each following term is 1 to 6 of the previous term.

Step-by-step explanation:

72/12 = 6/1

12/2 = 6/1

etc

Simplify the algebraic expression

Answers

Answer:

1/4 x + 9/10

Step-by-step explanation:

[tex]=-\frac{1}{2}x+\frac{7}{10} +\frac{3}{4} x+\frac{1}{5}[/tex]

[tex]=\frac{3}{4}x-\frac{2}{4} x+\frac{7}{10} +\frac{2}{10}[/tex]

[tex]=\frac{1}{4} x+\frac{9}{10}[/tex]

Hope this helps

find the circumference of the circle in round to the nearest 10th help please

Answers

Answer:

about 33.9 cm

Step-by-step explanation:

[tex]2\pi(5.4) = 10.8\pi = 33.9[/tex]

Need help plsss is 3/100 equal to 0.300 ???

Answers

Answer:

Yes. 3/100 = 0.3

Step-by-step explanation:

3/100 converted to decimal form equals 0.3.

Answer:

No

Step-by-step explanation:

If you divide 100 by 3 you will end up with 0.03, not 0.3.

Hope this helps!

can someone do this for me please?! Just the answer pls

Answers

Answer:

1 is H

2 is G

3 is B

Answer:

1 is G number 2 is F

Number 1 is G

Number 2 is F

Find the length of a rectangular prism if the volume is 70 m3 the width is 2 m and the height is 7 m​

Answers

Answer:

5m

Step-by-step explanation:

V=whl

Solving forl

l=V

hw=70

7·2=5m

2.
3х + 5x - 12
solve by quadratic formula

Answers

Answer:

3/2

Step-by-step explanation:

Please give me brainlist

X= 3/2

Solve by adding 3x+5x which makes the equation 8x-12=0. Then you’d have to add 12 from the left to the right side to get 8x=12. You then divide 12 by 8 to get x= 3/2.

Find the slope of the line that passes through the points (10,-14) (-4,-2)

Answers

Answer: 0.8571

The explanation is in the image please

DO GIVE CORRECT ANSWER other ways I will report you

1.You roll a standard, six-sided number cube. What is the probability of rolling a prime number or a number greater than 4?

2. Garrett throws a dart at a circular dart board. The dart board has a radius of 16 inches, and the bull’s eye in the center of the dart board has a radius of 6 inches. What is the probability that a dart thrown at random within the dartboard will hit the bull’s eye? Round your answer to the nearest tenth, if necessary.

Answers

Step-by-step explanation:

for the prime number it's 1/2

A spinner is divided into five colored sections that are not of equal size: red, blue, green, yellow, and purple. The spinner is spun several times, and the results are recorded below:
Spinner Results
Color Frequency
Red 18
Blue 10
Green 7
Yellow 19
Purple 6
If the spinner is spun 1400 more times, about how many times would you expect to land on red? Round your answer to the nearest whole number.

Answers

Answer:

red 420 times

Step-by-step explanation:

The results show red (18)  out of ( 18+10+7+19+6)

  18 / 60

18/60  *   1400 = 420 times

BUILDING A horse farm is developing a new indoor arena in a rectangular building. They want the width of the building to be 3y feet and the length to be 4y+9 feet. Write an expression in simplest form to represent the area A of the building in terms of y.

A= ____

Answers

Answer:

3y(4y+9)=12y^2+27y......

The area A of the rectangular building in terms of y will be (12y² + 36y).

What is Area of rectangle?

The area of a rectangle is length time width.

Given that;

The width of rectangular building = 3y

The length of rectangular building = 4y + 9

Now,

Area of rectangle = length x width

Substitute all the values we get;

Area of a rectangle = 3y (4y + 9)

                              = 12y² + 36y

Thus, The area A of the rectangular building in terms of y will be

⇒ (12y² + 36y)

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what does each equation have in common

Answers

The equations have operations, variable, an equal sign in common.

What is an Equation?

An equation is a mathematical expression that contains an equals symbol.

As per the definition, the equation contain operations, variable, an equal sign. That means whatever be the equation then it must contain operations, variable, an equal sign.

So, all the equations have operations, variable, an equal sign these three things in common.

For example: 4a+b=0

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find the value of p(7, 4)​

Answers

Answer:

P(7,4)= 840

Step-by-step explanation:

i need helpppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp again.

Answers

Answer:

C - 35 gallons per minute

Step-by-step explanation:

350 / 10

Answer:

350/10 = 35 gallons per minute

Step-by-step explanation:

PLEASE tell me I'm dead with this question

There were 27 children in a class.
There were twice as many boys as girls.
How many boys were there?
A 21 boys B 18 boys C 16 boys D 14 boys E 9 boys

Answers

Answer:

b 18 boys

Step-by-step explanation:

In order to solve this problem we must create a system of equations.

Creating a system of equations

Let x = number of boys and y = # of girls

We are given that in total there are 27 children which means # of boys + # of girls = 27 so we can say x + y = 27

We are also given that there are twice as many boys as girls so we can also say x = 2y ( as # of boys = twice the number of girls )

Solving the system

Now to find the # of boys and girls we must solve the system. To do so we are going to use the substitution method.

What is the substitution method?

The substitution method is where one of your variables ( x in this case ) is defined by an expression in which you can plug in or " substitute " it into the other equation ( we can substitute x = 2y into the other equation and solve for y )

Substitute equation 2 into equation 1

Equation 1 : x + y = 27

==> plug in x = 2y

y + 2y = 27

==> combine like terms

3y = 27

==> divide both sides by 3

y = 9

So there are 9 girls in the classroom

Solving for # of boys

To solve for the number of girls we plug in the # of girls (y=9) into one of the equations and solve for x

equation : x + y = 27

==> plug in y = 9

x + 9 = 27

==> subtract 9 from both sides

x = 18

There are 18 boys in the classroom

Checking our work:

Now that we have found the possible answers we can check our work. To do so we are going to want to plug in the values of x and y into both equations and if both are true our answer is correct

Equation 1 x + y = 27

==> plug in x = 18 and y = 9

18 + 9 = 27

==> simplify

27 = 27 ✓

equation 2 x = 2y

==> plug in x = 18 and y = 9

18 = 2(9)

==> multiply 2 and 9

18 = 18 ✓

Both are correct therefore we can conclude that there are 18 boys and 9 girls.

how many time 2/3 can go into 16

Explanation pls!!

Answers

Answer:

24 times

Step-by-step explanation:

16 divided by 2/3 is 24

hope this helped!

What is the missing number ?? /6 =25/30

Answers

Answer:

5

Step-by-step explanation:

[tex]\frac{25}{30}[/tex] ( divide numerator and denominator by 5 ) , then

[tex]\frac{25}{30}[/tex] = [tex]\frac{5}{6}[/tex] ( with missing number ? = 5 )

Answer:

x = 5

Step-by-step explanation:

What is the missing number ?? /6 =25/30

x : 6 = 25 : 30

x = 6 * 25 : 30

x = 5

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

check

5/6 = 0.83

25/30 = 0.83

the answer is good

The line passes through ​(​8,-7​) and is parallel to the line whose equation is y=2x+2.

Answers

Answer:

y = 2x -23

Explanation:

Given equation: y = 2(x) + 2

Comparing with slope intercept formula: y = m(x) + b

                                             where m is slope, b is y-intercept

Here slope: 2 as parallel line has same slope

Find equation:

y - y1 = m(x-x1)

y -(-7) = 2(x-8)

y + 7 = 2x - 16

y = 2x - 16 - 7

y = 2x -23

Given graph to confirm answer:

y=2x+2

Compare to slope intercept form

Slope=m=2

Parallel lines have slopes equal

Equation in point slope form

y+7=2(x-8)y+7=2x-16y=2x-23

In a bag are 100 marbles: 10 red, 20 white, 30 blue, and 40 green. If one marble is drawn from the bag, what is the probability that the marble will not be red, white, or blue?

Answers

Answer: 60/100 or 6/10 or 3/5

Step-by-step explanation:

We get 10+20+30=60.

We Covert to a fraction, 60/100

Reduce Down. 6/10

Reduce again, 3/5

Final answer is 3/5, the chance of it not being Red, White, or Blue is 3/5.

25x25 in exponential form

Answers

25 to the 2 or 25^2

Explanation:
There are 2 25’s 25x25, so the amount of exponents is the same as the number of repeated numbers

The boxplots below show the test scores for 2 different classes. First period has 20 students and 2nd period has 16 students. How many more students scored 80 or higher in class 2 than in class 1?

Answers

A box plot has 5 data descriptions. The number of students who scored 80 or higher in class 2 than in class 1 is 2.

How does a boxplot show the data points?

A box plot has 5 data descriptions:

The leftmost whisker shows the minimum value in the data.The rightmost whisker shows the maximum value in the data.The leftmost line in the box shows the first quartile.The middle line shows the median, also called the second quartile.The last line of the box shows the third quartile.

The number of students in the first class who scored more than 80 is 10, while the number of students in the second class who scored more than 80 is 12.

Therefore, the number of students who scored 80 or higher in class 2 than in class 1 is 2(12-10).

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In this rug, given the horizontal segments are parallel and ∠1 ≅ ∠2, prove ∠3 ≅ ∠5.

Answers

Angles 1 and 3 are alternate interior angles, meaning that they are congruent .

Angles 2 and 5 are alternate interior angles, meaning that they are congruent .

Making angles 3 and 5 congruent.

1 is congruent to 3 and 2 is congruent to 5 because alternate interior angles are congruent.

Since 1 is congruent to 3 and to 2, then 3 is congruent to 2.

But 2 is congruent to 5, so since 3 is congruent to both 3 and 5, 3 and 5 must be congruent to each other.

What is being congruent in math?

Two geometric figures are said to be congruent or to be in the relation of congruence if it is possible to superpose one of them on the other so that they coincide throughout.

        The word 'congruent' means 'exactly equal' in terms of shape and size. Even when we turn, flip, or rotate the shapes, they remain equal. For example, draw two circles of the same radius, then cut them out and place them on one another.

What is an alternate interior angle?

Alternate interior angles are the angles formed when a transversal intersects two coplanar lines. They lie on the inner side of the parallel lines but on the opposite sides of the transversal.

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Is this triangle acute, right, or obtuse?

acute

right

obtuse

Answers

Answer: Heyaa!

A Triangle is actue! :)

Step-by-step explanation:

Hopefully this helps you!!

Answer:

it's a right triangle

Step-by-step explanation:

at the bottom left corner of the triangle, there's a square that tells u that it's a right triangle

Please help me find the area of compound shapes?!!?

Answers

Answer:

85 cm²

Step-by-step explanation:

Area = 5 x 5 + 15 x 4

Area = 25 + 60

Area = 85 cm²

The y-Intercept of the line whose equation is 7x - 4y= 8 is
8
7/4
-2

Answers

Answer:

-2

Step-by-step explanation:

To find the y-intercept, all we need to do is plug in 0 for x and solve for y, giving us [tex]-4y = 8[/tex], so y = -2.

The graph shows a line and two similar triangles.

On a coordinate plane, a line goes through (0, 0) and (6, 4). A small triangle has a rise of 2 and run of 3. A larger triangle has a rise of 4 and run of 6.

Which expression finds the equation of the line?
StartFraction y Over x EndFraction = three-halves
StartFraction y Over x EndFraction = two-thirds
StartFraction y Over 2 EndFraction = StartFraction 3 Over x EndFraction
StartFraction y Over 3 EndFraction = StartFraction x Over 2 EndFraction
Mark this and return

Answers

Answer:B mark me brainliest

Step-by-step explanation:Recall that slope is rise over run

slope = rise/run

The rise being the change in y, while the run is the change in x.

So we could informally think of it as slope = y/x

-----------

Since we're told that it "has a rise of 2 and run of 3", this means slope = 2/3.

The slope is both y/x and also 2/3.

Equating the two expressions leads us to y/x = 2/3. This is why choice B is the final answer.

Answer:

B) y/x=2/3

Step-by-step explanation:

Edg2022

HELPP ASAPP

How many solutions does the equation 2x + .5y = -4 have?

Answers

Answer:

Topics

2x-5y=4. 2x−5y=4. Add 5y to both sides. Add 5y to both sides.

2x=4+5y. 2x=4+5y. The equation is in standard form. The equation is in standard form.

2x=5y+4. 2x=5y+4. Divide both sides by 2. ...

\frac{2x}{2}=\frac{5y+4}{2} 22x​=25y+4​ Dividing by 2 undoes the multiplication by 2. ...

x=\frac{5y+4}{2} x=25y+4​ Divide 4+5y by 2.

Step-by-step explanation: How do I determine how many solutions an equation has?

If solving an equation yields a statement that is true for a single value for the variable, like x = 3, then the equation has one solution. If solving an equation yields a statement that is always true, like 3 = 3, then the equation has infinitely many solutions.

help please!!!(will mark brainliest)

Answers

Step-by-step explanation:

remember, a probability is always desired cases over total possible cases.

the class has 10+15 = 25 students.

and 5 of them will be picked as representatives to the school board.

how many total possibilities do we have ?

since picked students can be picked only once, and the sequence of the 5 picked students in the group does not matter, we have a combination without repetition :

C(25, 5) = 25! / (5! × (25-5)!) = 25! / (5! × 20!) =

= 25×24×23×22×21 / (5×4×3×2) =

= 5×1×23×22×21 = 53,130 possible outcomes.

how many desired outcomes ?

that would be how many options we have to pick 2 out of 10 and 3 out of 15 :

C(10,2) × C(15,3) = 10! / (2 × 8!) × 15! / (3! × 12!) =

= 10×9/2 × 15×14×13/(3×2) =

= 5×9 × 5×7×13 = 20,475 desired outcomes

and the probability is

20475 / 53130 = 4095 / 10626 = 1365 / 3542 = 195 / 506

= 0.385375494... ≈ 0.39

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