What is the simplified form of this expression?

(-x2 + x) + (4x2 − x − 1)

Answer:

The student solved the equation correctly.

Answer:

Bottom graph

Step-by-step explanation:

For the relation to be a function, its graph must pass the Vertical line test (each x value must only have 1 corresponding y value)

Given:

Multiplying y = 3x - 5 by 2:

               y = -6x - 5

               y = -6x - 5

Adding both equations:

Dividing 3 both sides:

Substitute the value of y into any equation.

Divide -6 both sides.

Given:

Add both the equations.

        y = -8x + 7

Divide 2 both sides.

Substitute the value of y into any equation.

Add 9 both sides.

Divide 8 both sides.

Given:

Reorganize the first equation.

Multiply the first equation by 5.

          y = -5x + 12

          y = -5x + 12

Add both the equations.

Divide 31 both sides.

Substitute the value of y into any equation.

Subtract 702/31 both sides.

Answer: B. 8/100

      Let's give 5/10 a denominator of 100 since 58/100 does, so they have common denominators:

5/10 * 10 = 50/100

      Now, we can subtract 50/100 from 58/100 to find the unknown fraction:

58/100 - 50/100 = 8/100

      This gives us an answer of,

                   B. 8/100

Answer:

671.96 or 214[tex]\pi[/tex]

Step-by-step explanation:

C=2[tex]\pi[/tex]*r

C=2[tex]\pi[/tex]*107

C=2*3.14*107

C=671.96

107*2=214

Answer:

B. Anaphase

Step-by-step explanation:

There is no possible way to explain this it is also not mathematics it's considered biology

Answer:

P(A and 2) = 1/12, P(D and 1) = 1/8, P(A and not 2) = 1/6

Step-by-step explanation:

P(A and 2)

There is a 1/4 chance that you hit a when you spin the spinner. There is a 2/6 chance that you hit two when you spin the spinner. 1/4*2/6 = 2/24=1/12

P(D and 1)

There is a 1/4 chance that you hit d when you spin the spinner. There is a 3/6 chance that you hit one when you spin the spinner. 1/4*3/6=3/24=1/8.

P(A and not 2)

There is a 1/4 chance that you hit a when you spin the spinner. There is a 4/6 chance that you hit anything but two in the second spinner. 1/4*4/6=4/24=1/6

Percentage is a way to describe a part of a whole. The production of the footwear that will be in 2016 will be 1.65 billion.

A percentage is a way to describe a part of a whole. such as the fraction 1/4 can be described as 0.25 which is equal to 25%.

To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.

It is given that the production of footwear in 2006 was 1.8 billion which will be reduced by 8.4%, therefore, the number of footwear that will be produced in 2016 is 91.6%(100%-8.4%) of the production in 2006. Therefore, the production of footwear in 2016 will be

[tex]91.6\%\ of\ 2006\\\\= 0.916 \times 1.8\ billion \\\\= 1.6488\approx 1.65\ billion[/tex]

Hence, the production of the footwear that will be in 2016 will be 1.65 billion.

Learn more about Percentage:

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Answer:

1. 45 in²

2. 108 cm²

3. 104 m²

4. 75 in²

5. 1140 ft²

6. 166.5 mm²

Step-by-step explanation:

b=base, h=height

1. Area of triangle = [tex]\frac{1}{2}[/tex] x bh

[tex]\frac{1}{2}[/tex] x 10(9) = 45

2. [tex]\frac{1}{2}[/tex] x 12(18) = 108

3. [tex]\frac{1}{2}[/tex] x 16(13) = 104

4. Area of a trapezoid: [tex]\frac{1}{2}[/tex] x h( length of base 1 +length of base 2)

[tex]\frac{1}{2}[/tex] x 6(10+15) = 75

5. Area of kite = [tex]\frac{1}{2}[/tex] x length of diagonal 1 x length of diagonal 2

diagonal 1 = 5*9 = 45

diagonal 2 = 8*8 = 64

[tex]\frac{1}{2}[/tex] x 45(64) = 1140

6. [tex]\frac{1}{2}[/tex] x 9 (13+24) = 166.5

Answer:

109.35 ounces

Step-by-step explanation:

The scale factor is a linear scale factor.

The box is a three-dimensional solid, so the length, width, and height will be dilated by a factor of 9/2.

The volume factor is (9/2)³ = (4.5)³ = 91.125

The number of ounces is proportional to the volume.

1.2 ounces × 91.125 = 109.35 ounces

Answer:

Statement or Option A is correct.

Answer:

I think it is 343

Step-by-step explanation:

360-17=343

divide 42 by 6 and get 7 so mulyiply 7 by 9

Answer:

So to find this answer we would do 36-8= 28 in

Step-by-step explanation:

If the tail is 8 in shorter than the body them that means is subtraction,

Hop this helps!

Both f(x) and g(x) have the same range of [0,-infinity).

A function is an expression that shows the relationship between two or more numbers and variables.

Plotting the functions f(x) = 2x² – 3x + 5 and g(x) = 2ˣ - 5:

Both f(x) and g(x) have the same range of [0,-infinity).

Find out more on function at: https://brainly.com/question/25638609

Answer: A. Both f(x) and g(x) have the same domain of (9,-infinity).

Step-by-step explanation:

Answer: D

Step-by-step explanation:

A counterexample is an isosceles trapezoid.

Answer:

21

Step-by-step explanation:

If the angles are supplementary, that means they add up to 180 degrees.

That means if we subtract 75 from 180, we get 105.

If we divide 105 by 5, we get 21.

That means 21 * 5 + 75 = 180

or

5(21) + 75 = 180

Hope this helps!

Answer:

55

Step-by-step explanation:

Given the following question:

[tex]c-8a[/tex]
[tex]c=7[/tex]
[tex]a=-6[/tex]

Substitute and solve by using PEMDAS:

[tex]c-8a[/tex]
[tex]7-8(-6)[/tex]
[tex]8\times-6=-48[/tex]
[tex]7--48[/tex]
[tex]7--48=55[/tex]
[tex]=55[/tex]

Your answer is "55."

Hope this helps.

Answer:

ok and u have to divide up that have it

Answer: 7= 2+r

Step-by-step explanation:

Step-by-step explanation:

Our expression;

[tex]\frac{4^5\times4^7}{4^-2}[/tex]

Notes;

When exponents multiply, they add.

When exponents divide, they subtract.

Multiply;

[tex]\frac{4^5\times4^7}{4^{-2}}=\frac{4^{-2}}{4^{-2}}[/tex]

Divide;

[tex]\boxed{\frac{4^{-2}}{4^{-2}}=4^0=1}[/tex]

Facts to review:

[tex]\bullet \ \tex\text{Tip 1: If there is a "multiplication" sign, then the exponents will add.} \\\\ \bullet \ \tex\text{Tip 2: If there is a "division" sign, then the exponents will subtract.}\\\\ \bullet \ \ \tex\text{Tip 3: If a number, exponent, fraction, etc. is divided by itself, the result is 1.}[/tex]

Step- by step calculations:

[tex]\bullet\rightarrow (4^{5} \times 4^{-7} ) \div 4^{-2} \\\\ \bullet\rightarrow (4^{5 +(- 7)} ) \div 4^{-2} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ [\tex\text{Tip 1}]\\\\ \bullet\rightarrow (4^{-2} ) \div 4^{-2}\\\\ \bullet\rightarrow \boxed{\bold{1}} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ [\tex\text{Tip 3}][/tex]

The solution for the given expression is 1.

a. What can you use to find the height of the pole?

solution: We can use Pythagoras theorem to find the height of the pole.

b. Write and solve a quadratic equation to find the height of the pole.

solution:

a² + b² = c²

[tex]\sf (x)^2 + (x-3)^2 = 15^2[/tex]

[tex]\sf x^2 + x^2 - 6x + 9 = 15^2[/tex]

[tex]\sf 2x^2 -6x + 9 = 225[/tex]

[tex]\sf 2x^2 -6x -216=0[/tex]

[tex]\sf 2x^2 -24x +18x -216 = 0[/tex]

[tex]\sf 2x(x-12)+18(x-12) = 0[/tex]

[tex]\sf (2x + 18)(x-12) = 0[/tex]

[tex]\sf x = 12, -9[/tex]

[tex]\sf x = 12[/tex]

height of the pole: 12 ft

c. How far is the hook from the base of the pole?

solution: (x-3) → (12-3) → 9

Answer:

the answer is 96

Step-by-step explanation:

all you have to do is 8 times 12

Answer:

I do!

Step-by-step explanation:

10: It appears to be (6, 4.75)

11: It looks like (-4, -4)

You can desmos graphing calculator to check yourself, if you'd like!

I hope this helps!

Answer:It has no rerealrealr solutions

Step-by-step explanation:

Answer:

[tex]s=-9\pm8\sqrt{2}[/tex]

Step-by-step explanation:

[tex]s^2+18s=47\\\\s^2+18s-47=0\\\\s=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\ \\s=\frac{-18\pm\sqrt{(18)^2-4(1)(-47)}}{2(1)}\\ \\s=\frac{-18\pm\sqrt{324+188}}{2}\\\\s=\frac{-18\pm\sqrt{512}}{2}\\\\s=\frac{-18\pm16\sqrt{2}}{2}\\ \\s=-9\pm8\sqrt{2}[/tex]

This is all assuming that your problem is a quadratic equation

[tex]\longrightarrow \sf \: 14a^6b^{-4}[/tex]

[tex]\begin{gathered}\\\implies\quad \sf 7a^4b^{-5} \times2a^2b \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf 7\times a^4\times b^{-5} \times2\times a^2\times b \\\end{gathered} [/tex]

Grouping the like terms

[tex]\begin{gathered}\\\implies\quad \sf (7\times2)\times (a^4\times a^2)\times(b^{-5} \times b )\\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf 14\times a^{4+2}\times b^{-5+1} \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf 14\times a^6\times b^{-4}\\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf 14a^6b^{-4} \\\end{gathered} [/tex]