Choose two statements that are true for this expression.

Choose Two Statements That Are True For This Expression.

Answers

Answer 1

Answer: A and C

Step-by-step explanation: Brainliest please?


Related Questions

Point P lies on the directed line
segment from A(-2, 4) to B(7, -2), and
partitions the segment in the ratio 1 to 2.
Find the coordinates of P

Answers

Answer:

Step-by-step explanation:

The vector AP is in the same directionas AB but its length is 1/3 of AB

No AB = (7-(-2)) i + (-2-4)j = 9i -6j.

It follows that AP = (1/3)(9i-6j) = 3i - 2j.

Now OP = OA +AP = (-2i + 4 j ) + (3i-2j) = i + 2j

So P(1,2).

What does f(-2)= 4 mean?

Answers

Answer:

f(x) = y

Step-by-step explanation:

Think of it as a input-output function machine, where you give a number as input to the machine, and the you get a number as the output from the machine. The input is x which goes inside of the ( )'s, and the output is f(x). The output 'f(x)' is sometimes called the y-value because y = f(x).

For example f(-2) = 4. The number you give to the machine is -2 since it's the x-value and the number is in ( )'s. The output number the machine gives back to you is 4, which is the y-value.

Hope this helps!

25 points !Can you find the cube root of a negative number? If so, is it positive or negative? Complete the explanation. (select) ; the cube root of a negative number is (select) , because a negative number cubed is always (select) , and a nonnegative number cubed is always nonnegative.

for the drop downs!

For the first one Yes or no for the second one positive or negative and the last one is also positive or negative

Answers

Answer:

true, negative, negative

the money spent to buy goods is called​

Answers

Answer:

l think it's consumer spending

Carol will return from her 3 day trip on Friday, November 2. When did Carol's trip begin?

Answers

Answer:

October 30

Step-by-step explanation:

Subtract three days from November 2

Write an equation for the nth term of the arithmetic sequence 6,3,0,-3,...?

Answers

Answer:

the answer is 3-3n

Step-by-step explanation:

6-(n-1)x3

=3-3n

An equation for the nth term of the arithmetic sequence is aₙ=9-3n.

What is an arithmetic sequence?

An arithmetic sequence is a sequence of numbers where the differences between every two consecutive terms is the same. The general form an arithmetic sequence is aₙ=a+(n-1)d.

The given arithmetic sequence is 6,3,0,-3,...

Here, first term a=6 and common difference is 3-6=-3

Substitute a=6 and d=-3 in aₙ=a+(n-1)d, we get

aₙ=6+(n-1)(-3)

aₙ=6-3n+3

aₙ=9-3n

Therefore, an equation for the nth term of the arithmetic sequence is aₙ=9-3n.

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If x2 + y2 = 14 and xy = 5, find the value of
(x + y)2
and
(X-y)2

Answers

Answer:

3x(7-3)y2=21

Step-by-step explanation:

hope it is write

how do you write 9/11 as a decimal

Answers

Answer:

0.81

Step-by-step explanation:

Answer:

0.81818181818181....

Step-by-step explanation:

It is irrational

If the range of f(x)= 4x+1 is 9 find its domain. *​

Answers

Answer:f(x)=4x+1=9

=> 4x=9-1

=> 4x=8

=>x=2

Step-by-step explanation:

Sorry it’s a bit blurry

Answers

Answer:

[tex] = 3e + 10f - 9[/tex]

Step-by-step explanation:

[tex]4e + 2f - 9 + 8f - e[/tex]

[tex]3e + 2f - 9 + 8f[/tex]

[tex] \boxed{\green{= 3e + 10f - 9}}[/tex]

Help please, question in picture

Answers

Answer:

option A is right answer

Which is not a rational number?

Answers

Rational numbers are numbers that can be written as a fraction of two integers (as long as the denominator isn’t 0).

5 = 5/1, so it’s rational
1/2 and 1/3 are fractions, so they’re rational.

As decimals, rational numbers either stop or repeat.
1/2 = 0.5 (That stops.)
1/3 = 0.3333333… (That’s repeating.)

Of the two possible answers left, does one of them repeat? If so, it must be the other answer.

someone pls answer- will give brainliest

Answers

Hello there!

Formulas

[tex] \displaystyle \large{ \sin (2 \theta) = 2 \sin \theta \cos \theta} \\ \displaystyle \large{ \cos (2 \theta) = \begin{cases} 2 { \cos}^{2} \theta - 1 \\ 1 - 2 { \sin}^{2} \theta \\ { \cos}^{2} \theta - { \sin}^{2} \theta \end{cases}}[/tex]

First, we have to find cos(theta). We know that the theta lies in Q3 which is negative for both sin and cos. To find cos, you can use the identity or Pythagoras.

Recall

[tex] \displaystyle \large \tt{ \sin \theta = \frac{opposite}{hypotenuse} } \\ \displaystyle \large \tt{ \cos \theta = \frac{adjacent}{hypotenuse} }[/tex]

Finding cos, I will use Pythagoras.

Recall Pythagorean

Define a or b = adjacent or oppositeDefine c = hypotenuse

[tex] \displaystyle \large{ {a}^{2} + {b}^{2} = {c}^{2} }[/tex]

From sin = -1/6

opposite = 1hypotenuse = 6adjacent = x

[tex] \displaystyle \large{ {1}^{2} + {b}^{2} = {6}^{2} } \\ \displaystyle \large{1 + {b}^{2} = 36 } \\ \displaystyle \large{ {b}^{2} = 36 - 1 } \\ \displaystyle \large{ {b}^{2} = 35 } \\ \displaystyle \large{ {b} = \sqrt{35} }[/tex]

b is our adjacent. Hence,

[tex] \displaystyle \large{ \cos \theta = \frac{ \sqrt{35} }{6} }[/tex]

Since theta is in Q3, cos < 0 or in negative.

[tex] \displaystyle \large{ \cos \theta = - \frac{ \sqrt{35} }{6} }[/tex]

Finding sin(2theta)

[tex] \displaystyle \large{ \sin \theta = - \frac{ 1 }{6} }[/tex]

Hence,

[tex] \displaystyle \large{ \sin 2 \theta = 2( - \frac{ 1 }{6} )( - \frac{ \sqrt{35} }{6}) } \\ \displaystyle \large{ \sin 2 \theta = ( - \frac{ 1 }{3} )( - \frac{ \sqrt{35} }{6}) } \\ \displaystyle \large{ \sin 2 \theta = \frac{ \sqrt{35} }{18} }[/tex]

Recall

Negative × Negative = Positive

Finding cos(2theta)

The cos of 2theta has multiple formulas. All of them are same and also identity to each others.

I will be using the first one as it only involves cos, not sin.

[tex] \displaystyle \large{ \cos \theta = - \frac{ \sqrt{35} }{6} }[/tex]

Therefore,

[tex] \displaystyle \large{ \cos2 \theta = 2 { ( - \frac{ \sqrt{35} }{6} )}^{2} - 1 } \\ \displaystyle \large{ \cos2 \theta = 2 (\frac{ 35}{36}) - 1 } \\ \displaystyle \large{ \cos2 \theta = \frac{ 35}{18} - 1 } \\ \displaystyle \large{ \cos2 \theta = \frac{ 35}{18} - \frac{18}{18} \longrightarrow \boxed{\frac{17}{18} }}[/tex]

Answer

sin(2theta) = √35/18cos(2theta) = 17/18

The last choice.

Let me know if you have any questions!

18 men can earn Rs. 360 in 5 days. How much money will 15 men earn in 9 days?

Answers

Answer:

540

Step-by-step explanation:

Divide the rs by men. 360÷18. It's 20. Then divide by 5. Everyday each man makes 5 rs.

So use that for the other. 15x4=60 60x9=540

Abraham has visited 10 states already. He has a goal of visiting all 50 states. He plans to achieve this goal by visiting 5 new states per year (y) for the next several years.

Which equation and solution shows the number of years that it will take for Abraham to meet his goal?
A
5y+10=50; y=12 years

B
10y+5=50; y=5.5 years

C
5y+10=50; y=8 years

D
10y+5=50; y=4.5 years

Answers

Answer:

C

Step-by-step explanation:

5 states per year = 5y

Already visited 10 states = +10

5y + 10 = 50

To find y

5y = 50 - 10

5y = 40

y = 40/5

y = 8 years

Can someone please help me?

1.Modeling with mathematics: The total cost C (in dollars) to participate in a ski club is given by the literal equation C=85x+60, where x is the number of ski trips you take.

a. Solve the equation for x.

b. How many ski trips do you take if you spend a total of $315 and $485?​

Answers

Part (a)

We have some unknown number x which is a placeholder for a positive whole number (eg: x = 4).

What's happening to x are these two things, in this exact order

Multiply by 85Add 60

We multiply first, then add. The order is important. We're following the order of operations PEMDAS here. If we knew what x was, then we'd go forward in the PEMDAS chain; however, we don't know what x is. So we go backwards in the chain to isolate x. This will undo every operation applied to x.

So,

C = 85x+60

C-60 = 85x

85x = C-60

x = (C-60)/85

In the second step, I subtracted 60 from both sides to undo the "plus 60" operation. Then in the last step, I divided both sides by 85 to undo the multiplication.

Answer:   x = (C-60)/85

===============================================================

Part (b)

How many ski trips can we take if we spend $315? We simply plug in C = 315 into that equation we just found at the end of part (a).

Doing so gets us...

x = (C-60)/85

x = (315-60)/85

x = 255/85

x = 3

We can take 3 ski trips if we spent a total of $315

Repeat the same steps for C = 485

x = (C-60)/85

x = (485-60)/85

x = 425/85

x = 5

We can take 5 ski trips if we spent a total of $485

Note how plugging something like x = 5 into the original equation yields:

C = 85x+60

C = 85*5+60

C = 425+60

C = 485

Showing that x = 5 leads to C = 485. This helps confirm the second answer. I'll let you check the first answer.

Answers: 3 trips and 5 trips respectively

The table below shows a linear relationship between x and y.
х
-4-2
0
6
у
8
5
2
-7
Which graph below represents the relationship in the table?

Answers

The only graph with the point (6,-7) on it is Graph D.

Study the pattern of numbers given below and write the rule that describes the pattern 1,3,9,27,81

Answers

Multiply each number by 3
1x3=3
3x3=9
9x3=27
27x3=81

Given the directed line segment AB: Point A is the _____ with coordinates Point B is the point with coordinates ______.​

Answers

In the given line segment, the coordinates of Point A and Point B is (1, 3) and (4, 6).

What is a line segment?A line segment in geometry is a section of a straight line that is enclosed by two clearly defined endpoints and contains all of the points on the line that lies inside those endpoints. The Euclidean distance between two ends of a line segment determines its length. A square, for instance, is a two-dimensional geometry with four equal-length sides. In a square, all four interior angles are right angles, and the opposing sides are parallel to one another.

So, according to the given image:

Coordinates of point A: (1, 3)Coordinates of point B: (4, 6)

Then, Point B is the point with coordinates (4, 6), while Point A is the line (1, 3).

Therefore, in the given line segment, the coordinates of Point A and Point B is (1, 3) and (4, 6).

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The correct question is given below:
Given the directed line segment AB: Point A is the line with coordinates ______ and Point B is the point with coordinates ______.​

what is a vertical line ?​

Answers

Step-by-step explanation:

A line perpendicular to a surface or to another line considered as a base.

Write each decimal as a percent and a fraction -0.04

Answers

Answer:

-4%   -1/25

Step-by-step explanation:

To convert a decimal to a percentage, multiply it by 100.

-0.04 * 100 = -4

To convert a decimal to a fraction, put the decimal as a fraction over 1 and multiply until the numerator (top number) is a whole number and then simplify.

[tex]\frac{-0.04}{1}[/tex] x [tex]\frac{100}{100}[/tex] = [tex]\frac{-4}{100}[/tex]

-4/100 simplified = -1/25 (because 4 goes into 100 25 times)

HELP PLEASE 17 POINTS

Answers

Step-by-step explanation:

1000ml =1 L150m> 1500 cm4000g > 3kg

Michael bought four packs of pens. Each pack contains 12 pens. Mark bought twice as many pens as Michael. How many pens did mark buy?

Answers

Answer:

96

Step-by-step explanation:

12×4=48

mark bought twice as many pens so 48×2=96

Step-by-step explanation:

Mark bought 96 pens , 12 multiply by 8 is equal to 96

A. Explain why a system that consists of a linear equation and a quadratic equation can have zero, one, or two solutions.​

Answers

The statement "a system that consists of a linear equation and a quadratic equation can have zero, one, or two solutions" is true .

What is linear equation?

A linear equation is an algebraic equation of the form [tex]y= mx+b.[/tex]involving only a constant and a first-order (linear) term, where m is the slope and b is the y-intercept. Occasionally, the above is called a "linear equation of two variables," where y and x are the variables.

What is quadratic equation?

We define a quadratic equation as an equation of degree 2, meaning that the highest exponent of this function is 2. The standard form of a quadratic is , [tex]y = ax^2 + bx + c[/tex]

where a, b, and c are numbers and a cannot be 0.  

According to the question

A system that consists of a linear equation and a quadratic equation can have zero, one, or two solutions.​

This statement is true as

if we see graphically  

A quadratic equation is a parabola and a linear equation is a straight line.

There could be 3 situations of intersection of line and parabola

1. straight line never crosses the parabola

i.e line passing above or below parabola without touching

it is called zero solution

2. where the straight line is a tangent to the parabola, 'touching' it at only one point.

i.e single point lies in both line and parabola

it is called one solution

3. the line cuts across the parabola, it will cut the parabola at 2 points

it is called two solution .

Hence, The statement " a system that consists of a linear equation and a quadratic equation can have zero, one, or two solutions "is true .

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Answer:   The intersections of the graphs of a system of equation correspond to the solutions of the system. Since we saw that a line can intersect a parabola zero, one, or two times, a linear-quadratic system can have zero, one, or two solutions.

Step-by-step explanation:PLATO

Can someone help provide the steps?

Answers

9514 1404 393

Answer:

  r = 2

Step-by-step explanation:

"A varies inversely with r cubed" means the relation is of the form ...

  A = k/r³

We can find the value of k as ...

  k = Ar³ = 72·5³ = 9000 . . . . . . . multiply the above relation by r³

And we can solve this for r to get ...

  r³ = 9000/A . . . . . . divide by A

  r = ∛(9000/A) . . . . . take the cube root

So, for A = 1125, we have ...

  r = ∛(9000/1125) = ∛8

  r = 2

Dose anyone know how to solve this?

Answers

Answer:

Derivative of any constant is zero

you can solve it by first derivative rule

Answer:

Derivative of any constant is zero

Step-by-step explanation:

(ii) A perpendicular drawn from the vertex of the right angled triangle divides the triangle into two triangles similar to each other. Prove it.​

Answers

9514 1404 393

Answer:

  similar by AA

Step-by-step explanation:

Each of the smaller right triangles shares an acute angle with the original (largest) triangle, so all of the triangles are similar by the AA similarity postulate.

Linda travels 58.6 miles each day for the past seven days how many miles did you drive in all?​

Answers

Answer:

410.2 miles total

Step-by-step explanation:

58.6 miles × 7 days = 410.2 miles

3. The sum of the second and third terms of a Geometric Progression is 48. If the sum of third and fourth terms is 144, find the first term of the progression.

Answers

Answer:

gọi

Step-by-step explanation:

We have that the  first term of the progression is

b=4

From the Question we are told that

Third terms of a Geometric Progression is 48

Sum of third and fourth terms is 144

[tex]x_3+x_4=144[/tex]

Generally the equation for the common ratio  is mathematically given as

   [tex]\frac{br^2+br^3}{br+br^2}=\frac{144}{48}\\\\\frac{br^2+br^3}{br+br^2}=3[/tex]

  r=3

Therefore

Since

   [tex]br+br^3=48\\\\b(3)+b(3)^3=48[/tex]

  b=4

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The value of the expression 2x² + x(100- 15 x) when x = 5 is X

a 119
b 129
c 135
d 145​

Answers

[tex]\text{x}=5\\\\2\text{x}^2+\text{x}(100-15\text{x})=2\cdot5^2+5\cdot(100-15\cdot5)=\\\\=2\cdot25+5\cdot(100-75)=50+5\cdot25=\\\\=50+125=\boxed{175}[/tex]

Answer :

[tex] \boxed{ \boxed{ \mathrm{ \: \: \: \: \: \: \: \: \: 175 \: \: \: \: \: \: \: \: \: }}}[/tex]

Solution :

Plugging the value of x as 5 in the given expression we get,

[tex] \hookrightarrow \: 2 {x}^{2} +x (100 - 15x)[/tex]

[tex] \hookrightarrow \: 2(5) {}^{2} + 5(100 - (15 \times 5))[/tex]

[tex] \hookrightarrow \: (2 \times 25) + 5(100 - 75)[/tex]

[tex] \hookrightarrow \: 50 + 5(25)[/tex]

[tex] \hookrightarrow \: 50 + 125[/tex]

[tex] \hookrightarrow \: 175[/tex]

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