the square of a number and 7 times a number are -10

Write the equation and the answer

Answers

Answer 1

Step-by-step explanation:

The sum of the square of a number and 7 times a number

The phrase a number means an arbitrary variable, let's call it x.

x

Square the number:

x^2

7 times the number means we multiply x by 7:

7x

The sum means we add x^2 and 7x

x^2 + 7x

Answer 2

Answer:

The answer is x² + 7x + 10 = 0.

Step-by-step explanation:

First, you have to make an expression. By reading the question, we can make it :

Let number = x,

Square of a no,

7 times a no,

7 × x

= 7x

And means ADD equals to -10,

x² + 7x = -10

x² + 7x + 10 = 0

(By forming an equation, you have to let expressions equals to 0, so I add 10 to both sides in order to get rid of -10)


Related Questions

The radius of a circle is 3 km. what is the circle's area and what is the formula you have to use?

Answers

Answer:

Circle's area = 28,26 km

Formula = π r²

Step-by-step explanation:

[tex]circle's \: \: area = \pi \: {r}^{2} \\ circle's \: \: area = 3,14 \times {3}^{2} \\ circle's \: \: area = 28,26 \: km \\ circle's \: \: area = 28.260 \: m[/tex]

A rectangle has a length of x + 9 and a width of x - 1. Which equation below
describes the perimeter, P, of the rectangle in terms of x? *
A: P=4x+16
B: P=2x+8
C: P=x+8
D: P=x^2+8x-9

Answers

Answer:

A

Step-by-step explanation:

P = 2 (W+L)

P = 2 (x+9+x-1)

P = 2 (2x+8)

P = 4x+16

The equation P = 4x+16 describes the perimeter, P, of the rectangle in terms of x. The correct answer would be option (A).

What is the perimeter of the rectangle?

The perimeter of a rectangle is defined as the addition of the lengths of the rectangle's four sides.

The perimeter of a rectangle = 2(L+W)

Where W is the width of the rectangle  and L is the length of the rectangle

A rectangle has a length of x + 9 and a width of x - 1.

P = 2 (L + W) ....(i)

Substitute the values of L = x + 9 and W = x-1 in the above equation,

P = 2 (x+9+x-1)

P = 2 (2x+8)

P = 4x+16

Thus, the equation P = 4x+16 describes the perimeter.

Hence, the correct answer would be an option (A).

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A scenic overlook which extends over a ravine is shaped like a kite.
Find mZX
O a. 104°
Ob.40°
O c. 112°
O d. 208

Answers

A quadrilateral is a polygon with 4 number of sides and 4 vertices. The measure of the ∠X is 104°.

What is a quadrilateral?

A quadrilateral is a polygon with 4 number of sides and 4 vertices. A few examples of a quadrilateral are square, rectangle, rhombus, parallelogram, etc.

Given a scenic overlook which extends over a ravine is shaped like a kite. Since in a kite the measure of all the angles is 360°, also, the measure of the angle formed by the two non-equal sides is equal. Therefore, the measure of the two angles that will be equal is ∠X and ∠Z.

Further, the sum of the measure of all the angles can be written as,

∠X + ∠Y + ∠Z + ∠W = 360°

∠X + 40° + ∠X + 112° = 360°

2∠X = 360° - 112° - 40°

2∠X = 208°

∠X = 208°/2

∠X = 104°

Hence, the measure of the ∠X is 104°.

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Final answer:

Without additional details it is not possible to solve for the measure of angle Z (mZX) in a kite. Kite properties and given angle measures are typically used to solve for unknown angles.

Explanation:

The question asks to find the measure of angle Z (mZX) in a kite. A property of a kite is that it has two pairs of adjacent sides that are equal. Another property is that the diagonals intersect at right angles. Furthermore, kites have one pair of opposite angles that are equal, known as the non-vertex angles.

If the kite diagram was provided with certain angles or relationships between the angles, we could use that information to calculate mZX. Typically, we would use the properties of the kite's angles and sides to form equations and solve for the unknown angle.

Without additional information provided, we cannot definitively solve for mZX. Usually, in the context of a geometry problem like this, one would apply the knowledge of geometric shapes, their properties, and other given information to solve for the unknown angle.

Find the volume of the composite figure to the nearest whole number. The cylinder in the middle of the prism is hollow and should not be included in the volume.

Answers

The nearest whole number, the volume of the composite figure is 1140 in^3.

The composite figure consists of two rectangular prisms. The first prism has dimensions 8 in. x 4 in. x 18 in., and the second prism has dimensions 10 in. x 4 in. x 18 in.

To find the volume of the composite figure, we need to subtract the volume of the hollow cylinder from the volume of the two rectangular prisms.

The volume of a rectangular prism is calculated as follows:

Volume = length x width x height

The volume of the first rectangular prism is therefore:

Volume = 8 in. x 4 in. x 18 in. = 576 in^3

The volume of the second rectangular prism is therefore:

Volume = 10 in. x 4 in. x 18 in. = 720 in^3

The volume of a cylinder is calculated as follows:

Volume = π * radius^2 * height

Since the cylinder in the middle of the prism is hollow, we only need to consider the volume of the cylinder wall. The radius of the cylinder is 1 in., and the height of the cylinder is 18 in. Therefore, the volume of the cylinder wall is:

Volume = π * 1 in.^2 * 18 in. = 56.52 in^3

The total volume of the composite figure is therefore:

Volume = (576 in^3 + 720 in^3) - 56.52 in^3 = 1140.48 in^3

To the nearest whole number, the volume of the composite figure is 1140 in^3.

Select statistical or not statistical do you classify each question.

Answers

Answer:

statistical, not statistical, not statistical

Step-by-step explanation:

Answer:

1. statical, 2. not statical, 3. not statical

Step-by-step explanation:

Which equation represents the relationship of the measure of m∠X and m∠Y?

Answers

Answer:

The measure of f m∠X and m∠Y =180 i.e they are supplementary angles.

Step-by-step explanation:

Given:

Two angles

To Find:

Relationship between them

Solution:

For two angles to have relationship ,we need to know what represents in the figure

Here no terms are used to represent the angles

So two angles can be represented in sum of angles of triangles ,

as Consider a triangle XYZ then

X +Y=180 -Z

This will be representation

Otherwise,

Then could be linear ,interior alternate angle or supplementary angles

Which they adds up to 180 degree.

Depending upon the Condition representation will be establish.

Now,

m∠X and m∠Y=180............Supplementary angles. will be most effective .

Answer:

m∠X + m∠Y = 180°

Step-by-step explanation:

Which prism is similar to a right rectangular prism with a length of 5.2 units, a width of 2 units, and a height of 3 units?

Answers

Answer:

The second rectangle on edg

Step-by-step explanation:

Answer: B.) (2nd choice)

h=1.5

w=1

l=2.6

Step-by-step explanation:

What does πr2 in the example represent in the cylinder and the cone?

Answers

Answer:

Thats and area of a circular cylinder

Step-by-step explanation:

yeah thats all

n a newspaper, it was reported that yearly robberies in Springfield were down 20% to 176 in 2011 from 2010. How many robberies were there in Springfield in 2010?

Answers

Answer: There were 220 robberies in Springfield in 2010

Step-by-step explanation: If the robberies were reported to be down 20% and the new figure is 176, it simply means the figure 176 depicts 80% (or 0.8) of the figure from year 2010.

We shall take the figure in year 2010 as x, which is 100% (or 1.0) and year 2011 is 176 which is 80% (or 0.8). What we now have is;

176/x = 0.8

176/x = 4/5

By cross multiplication we now have;

(176 x 5)/4 = x

880/4 = x

220 = x

Therefore, there were 220 robberies in Springfield in 2010

Answer: There were 220 robberies in Springfield in 2010.

Step-by-step explanation:

Hi, to answer this question we have to write an equation with the information given.

Since the robberies decreased 20%, it means that 2011 are robberies are the 80% (100%-20%) of the 2010 robberies (x).

So if we multiply the yearly robberies in 2010 (x) by 0.8 (decimal form, 80/100=0.8) , we obtain the number of yearly robberies in 2011 (176).

x (0.80) = 176

Solving for x

x = 176/0.8

x = 220  robberies (2010)


27,965 is divisible by
A) 2
B) 3
C) 5
D) 8

Answers

Answer:

C) 5

Step-by-step explanation:

27,965/5 = 5593

Technically 27,965 can be divisible by any of these numbers but 5 i the only one that equals a whole number.

I need help with this I don’t understand this

Answers

D.1296 is the answer

Answer:

the answer would be A

Step-by-step explanation:

multiply 7 x 6 and that would get you to 42 and if you multiply 42 x 6 that would get you 252 and if you do that with the rest of the numbers you will see that it could work if you multiply them by 6 so basically the constant rate of the numbers would be 6.

Identify the x- and y-intercepts of the graph

Answers

Answer:

see explanation

Step-by-step explanation:

The x- intercept is where the graph crosses the x- axis, that is

( [tex]\frac{1}{3}[/tex], 0 )

The y- intercept is where the graph crosses the y- axis, that is

(0, 1 )

A triangle has vertices at R(1, 1), S(-2,-4), and T-3, -3). The triangle is transformed according to the rule Ro. 270". What
are the coordinates of S?


(-4,2)
(-2, 4)
(2,4)
(4,-2)

Answers

The coordinate of S if the triangle is transformed according to the rule Ro. 270 is (-4, 2)

Transformation of coordinates

Transformation is the process of changing the position of an object in a xy-plane.

Given the coordinate of the triangles as R(1, 1), S(-2,-4), and (T-3, -3). If the triangle is transformed according to the rule Ro. 270", the resulting coordinate points are (x,y)→(y,−x)

The coordinate of S using the rule is (-4, 2)

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The coordinate of S if the triangle is transformed according to the rule Ro. 270 is (-4, 2)

What is transformation?

A transformation is a dramatic change in form or appearance. An important event like getting your driver's license, going to college, or getting married can cause a transformation in your life. A transformation is an extreme, radical change.

here, we have,

Transformation of coordinates

Transformation is the process of changing the position of an object in a xy-plane.

Given,

the coordinate of the triangles as R(1, 1), S(-2,-4), and (T-3, -3). If the triangle is transformed according to the rule Ro. 270", the resulting coordinate points are (x,y)→(y,−x)

The coordinate of S using the rule is (-4, 2)

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To make a glass sphere, 3,052.08 cm3 of molten glass is poured into a mold. Using 3.14 for π, Eduardo finds the circumference of the sphere using the steps below.







Which statement about Eduardo’s calculations is true?

Eduardo did not use the correct formula for the circumference.
Eduardo incorrectly used the length of the diameter to find the circumference.
Eduardo incorrectly calculated the radius.
Eduardo did not square the radius correctly in the second formula.

Answers

Answer:

Eduardo did not use the correct formula for the circumference.

Step-by-step explanation:

I was on the same question as you and guessed the assignment said this was the correct answer.

Ben is 3 times as old as Daniel and is also 4 years older than Daniel.

Answers

Answer:

Ben 3 times older than Daniel

Step-by-step explanation:

Multiply 3 times 4

Two negative integers are 5 units apart on the number line, and their product is 126. What is the sum of the two
integers?
-23
-5
9
14

Answers

Answer:

23

Step-by-step explanation:

here

9 and 14. are numbers

sum is 9 +14 = 23

Please answer this correctly

Answers

Answer:

approximately 18 or [tex]\sqrt{324}[/tex]

Step-by-step explanation:

please give me brainliest

A number K increased by 10 is the same as 24 what’s the equation

Answers

Final answer:

The equation for finding the value of K when increased by 10 equals 24 is K + 10 = 24, and solving it results in K = 14.

Explanation:

A number K increased by 10" is represented by K+10.

"Is the same as" means equal to.

"24" is represented by 24.

Therefore, we can express this relationship as an equation where the left side represents "a number K increased by 10" and the right side represents "24."

The equation to represent the situation where a number K increased by 10 equals 24 is:

K + 10 = 24

This equation signifies that when the unknown number K is augmented by 10, the resultant value equals 24. It serves as a concise representation of the given condition, enabling the determination of K by solving the equation.

Through such algebraic manipulation, one can discern that the value of  K:

K = 24 - 10 = 14

Which phrases can be used to represent the inequality 12 minus 3 x greater-than-or-equal-to 9? Select two options.
Twelve less than three times a number is greater than or equal to nine.
Twelve less than three times a number is at least nine.
Twelve less three times a number is at least nine.
Twelve minus the product of three and a number is no more than nine.
Twelve minus the product of three and a number is no smaller than nine.

Answers

Final answer:

The phrases that represent the inequality 12 minus 3x greater-than-or-equal-to 9 are 'Twelve less than three times a number is greater than or equal to nine' and 'Twelve minus the product of three and a number is no smaller than nine.'

Explanation:

The phrases that can be used to represent the inequality 12 minus 3x greater-than-or-equal-to 9 are:

Twelve less than three times a number is greater than or equal to nine. In this phrase, a number can be any variable or value that satisfies the given inequality.Twelve minus the product of three and a number is no smaller than nine. This phrase represents the same inequality using different wording.

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Final answer:

The phrases 'Twelve less than three times a number is greater than or equal to nine' and 'Twelve less than three times a number is at least nine' correctly represent the inequality 12 minus 3x greater-than-or-equal-to 9.

Explanation:

The inequality 12 minus 3x greater-than-or-equal-to 9 can be represented in two ways among the given phrases. The correct phrases are 'Twelve less than three times a number is greater than or equal to nine' and 'Twelve less than three times a number is at least nine'. In both phrases, 'three times a number' represents '3x', 'twelve less than' represents '12 minus', and 'greater than or equal to nine' or 'at least nine' represents 'greater-than-or-equal-to 9'.

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Which statement describes what these four powers have in common? 4 Superscript 0 (negative 2) Superscript 0 (one-third) Superscript 0 9 Superscript 0 All the powers have a value of 0 because the exponent is zero. All the powers have a value of 1 because the exponent is zero. All the powers have a value of –1 because the exponent is zero. All the powers have a fractional value because the exponent is zero.

Answers

Answer:

The answer would be that All the powers have a value if 1 because the exponent is zero.

Step-by-step explanation:

Use the exponent rule to help you

Answer:

it is 1

Step-by-step explanation:

i took this test on brainly

Use any method to solve the equation. If necessary, round to the nearest hundredth. 9x^2 = 17

Answers

Answer:

1.37

Step-by-step explanation:

First, we want to isolate the variable x. Do this by dividing both sides by 9:

[tex]\frac{9x^2}{9} =17/9[/tex]

[tex]x^{2} =17/9[/tex]

Now, square root both sides:

[tex]\sqrt{x^2}= \sqrt{17/9}[/tex]

x = [tex]\sqrt{17/9} =\sqrt{17}/3[/tex]

Finally, we can use a calculator to finish off the problem:

x = [tex]\sqrt{17}/3[/tex] ≈ 1.37

Hope this helps!

9x^2 = 17

Divide both sides by 9

X^2 = 17/9

Take the square root of both sides

X = sqrt(17/9) and -sqrt(17/9)

Simplify:

X = sqrt(17)/3 and -sqrt(17)/3

Which of the following constructions show the construction of an incircle

Answers

Answer:

the answer is B

2x+8y=4. x=−3y+5. substitution method

Answers

Your answer is Y= -3.

Answer:

  (x, y) = (14, -3)

Step-by-step explanation:

You are given an expression for x, so it is convenient to use that to substitute for x.

  2(-3y +5) +8y = 4

  -6y +10 +8y = 4 . . . . . eliminate parentheses

  2y = -6 . . . . . . . . . . . . subtract 10, collect terms

  y = -3 . . . . . . . . . . . . . divide by 2

  x = (-3)(-3) +5 = 14 . . . use the second equation to find x

The solution is (x, y) = (14, -3).

The table shows the length of hospital stay for 21 randomly selected adult patients. What is the interquartile range of this data?

Answers

To calculate it, first order your data points from least to greatest, then determine your first and third quartile positions by using the formulas (N+1)/4 and 3*(N+1)/4 respectively, where N is the number of points in the data set.

after you do that then say IQ=Q3-Q1

Answer:

8.5

Step-by-step explanation:

To calculate it, first order your data points from least to greatest, then determine your first and third quartile positions by using the formulas (N+1)/4 and 3*(N+1)/4 respectively, where N is the number of points in the data set.

after you do that then say IQ=Q3-Q1

Which number is a rational number? √25 √32 √50 √63

Answers

Answer:

√25

Step-by-step explanation:

√25 is a perfect square and simplifies to 5.

Final answer:

A rational number is any number that can be expressed as a quotient or fraction of two integers, with the denominator not equal to zero. Among the options, √25 is the only rational number as it equals to 5 which can be expressed as a fraction (5/1). The others are not rational as their square roots are not exact whole numbers.

Explanation:

The question is asking which number among the given options is a rational number. Rational numbers can be any number that can be expressed as a quotient or fraction p/q of two integers, with the denominator q not equal to zero. In this case, we need to find out which of the square root numbers is rational.

The square of √25 is 25, so √25 equals to 5 which is surely a rational number, because it can be expressed as a fraction 5/1. So, the rational number from the given options is √25.

The square roots of the other numbers are not exact whole numbers and therefore aren't rational numbers. For example, √32, √50, and √63 are approximately 5.66, 7.07, and 7.94 respectively, and these cannot be expressed as exact fractions.

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the meaning of logarithm

Answers

Answer:

the meaning of logarithm is a quantity representing the power to which a fixed number (the base) must be raised to produce a given number.

Step-by-step explanation:

: )

I REALLY NEED HELP PLS ANSWER!!!!!

Answers

Negative I’m on khan academy doing something else though

A broker pays his salespeople 25 percent of the commission for listing a property and 40 percent of the

commission for selling it. If the commission rate is 6 percent and a salesperson received $3,265.28 on a

property that he sold, what was the sales price? (Round answer to nearest dollar.)

Answers

Answer: The sales price was $83,725

Step-by-step explanation: The commission rate for selling the property has been given as 6 percent of the sales price.

If the salesperson received a total of 3265.28, (which is 25% + 40% = 65% of the commission) then that means he has received the amount calculated  as follows;

(3265.28/x) = 65/100

(Where x is the commission earned)

By cross multiplication we now have

(3265.28 x 100)/65 = x

5023.5 = x

Having calculated the commission as $5023.5, we remember that the commission rate is 6%, and hence, to calculate the sales price (which is 100%) we take the following steps;

(5023.5/y) = 6/100

(Where y is the total sales figure)

By cross multiplication we now have

(5023.5 x 100)/6 = y

83725 = y

Therefore, the sales price was, $83,725

Final answer:

To find the sales price of a property based on the commission received, divide the commission earnings by the percentage commission for selling the property, then divide that total by the overall commission rate. Rounding to the nearest dollar, the sales price was $136,053.

Explanation:

The subject of this question is Mathematics, specifically pertaining to business and commission calculations. The problem involves determining the sales price of a property based on the commission received by a salesperson.

Understand that a salesperson received $3,265.28, which represents 40% of the commission for selling a property.Calculate the total commission by dividing the salesperson's earnings by the selling commission percentage: $3,265.28 ÷ 0.40 which equals $8,163.20 total commission.Find the sales price of the property by dividing the total commission by the commission rate: $8,163.20 ÷ 0.06.Calculate the sales price: $8,163.20 ÷ 0.06 = $136,053.33.Round the sales price to the nearest dollar, which gives us $136,053.

Hence, the sales price of the property was $136,053.

A square has an area of 16 square millimeters. What is the length of each side of the square?

Answers

Answer:

The length of each side of the square is 4 mm

Step-by-step explanation:

AS we can see that , it is said that it is as square so all sides of a square are equal

Area(A)= 16 square millimetres

Length (L) = ?

or

[tex]L^{2}[/tex] = Area

[tex]L^{2}[/tex] = 16

L = [tex]\sqrt{16}[/tex]

L =[tex]\sqrt 4^{2}[/tex]

Therefore L = 4 mm

Hope it will help :)

Plzzz help thank you!!

Answers

Answer:

i think is 240 or it could be 64

I think the answer is 64
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