Evaluate a2 − 2b for a = 2 and b = −4.

Answers

Answer 1
a^2 - 2b
2^2 - 2(-4)
4 + 8
12

Hope this helps!!!!

Related Questions

| -11|>2 true or false

Answers

Answer:

Step-by-step explanation:

niet waar -11 is negatief

i need help!!!!!!!!!!!! whats 100x200x100x300x000*1333x3000

Answers

Answer:

the awnser is zero

Step-by-step explanation: i am 100% sure

Just put it in a Calculator

Express answer in exact form.

A segment of a circle has a 120° arc and a chord of 8√3in. Find the area of the segment.

Answers

3749.4 838.638 the answer is

PLEASE HELP ASAP DUE VERY SOON

Answers

Answer:

your answer will be A'B'/AB=3/1=3

Step-by-step explanation:

i hope this helps you

Answer:

3 is the correct answer......

Can someone please help

Answers

the answer would be 3,2,4,1

Use the Distributive Property to simplify the expression.
3(x+10)

Answers

Answer:

[tex]3x + 30[/tex]

3 times x +3 times 10

Hi, let me help you out!

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

In order to simplify this expression, we will use the Distributive Property:

—> a(b+c)=ab+ac

Simplify:

3(x+10)

Multiply 3 times x and 10:

3x+30

Hence, we conclude that the answer is: 3x+30.

I hope it helps you! Have an awesome day.

3. Con la finalidad de contar con un alimento para animales con un valor nutritivo
más alto que el maíz común, un grupo de expertos comparan dos nuevas varie-
dades de maiz con un contenido de aminoácidos modificado llamadas opaca-2
y harinoso-2, con maíz común. Los investigadores mezclan maíz y soya para ali-
mentar animales, con 12%, 16% y un 20% de proteina. Suministran diariamente
este alimento compuesto a 10 pollos machos y anotan su aumento de peso al
cabo de 21 días. El aumento de peso de los pollos es una medida de valor nutri-
tivo del contenido del alimento, que se suministra. De acuerdo a lo anterior iden-
tifica ¿Cuál es la variable dependiente?. ¿Cuál es la variable independiente?, y
el aumento de peso que sería?
13
on qué conocimientos cuento?

Answers

What I don’t speak that language im sorry

(Please I will mark BRAINLIEST, not lie)Use this equation to solve for the missing variable:
y = 8x + 12


If x = -6, y = _____

If y = 13, x = _____

Answers

y = 8x + 12

if x = -6

y = 8(-6) + 12

y = -48 + 12

y = - 36


if y = 13

13 = 8x + 12

13-12 = 8x

8x = 1

x = ¹/₈ ≈ 0.125

Answer:

If x = -6, y = -36

If y = 13, x = [tex]\frac{1}{8}[/tex]

Step-by-step explanation:

There is one equation and are asked to find x and y if there is a certain value to substitute either x or y.

Let's start with x, we know that x = -6. Meaning that we need to subtitute x for -6. Do as followed :

y = 8(-6) + 12

y = -48 + 12

y = -36

Now do y, we know that y is 13. Meaning that we need to substitute y for 13. Do as followed :

8x + 12 = 13

We need to isolate x alone, so do as followed :

Subtract 12 from both sides to get 8x alone :

8x = 1

Divide 8 from both sides to get x alone :

x = 1/8

True or false?

The length of the intercepted arc is equal to the circumference of the circle.

Answers

Answer:

True

Step-by-step explanation:

i’m sure the arc is just a piece of the circumference so false

Which of these equations is correct when x = -2?
A
x + 8 = 5
B
3x - 1 = -10
C
2x - 7 = -11
D
-95x = -190

Answers

Answer:

C

Step-by-step explanation:

just plug it into a calc

Answer:

C: 2x - 7 = - 11

Step-by-step explanation:

If you insert -2 into the place of "x", you will have 2(-2) - 7.

2(-2) = -4, and -4 - 7 = -11.

Which shows the mixed number for 13/3?
4 1/3 or
1 3/3 or
4 2/3

Answers

Answer:

Answer vary :

4 1/3

Step-by-step explanation:

What is the sum of 13.75 and -11.25 ? Show your
work

Answers

Here goes the answer. Hope it helps you.

Answer:

Step-by-step explanation:

2.5

8(-3/2x+6)=-9(4/3x-8)

Answers

the answer is 0=24 hope this helped

Reuben invested his savings in two investment funds. The $18,000 that he invested in Fund A returned a 5% profit. The amount that he invested in Fund B returned a 1% profit. How much did he invest in Fund B, if both funds together returned a 4% profit?

Answers

Answer:

He invested $13500 in fund A, and $4500 in Fund B

Step-by-step explanation:

maths

Which of the following is a verbal
description of this expression?
2 – 3
B
А
Three less
than a number
An unknown
quantity less
than three.

Answers

Answer:  Three less than a number

Step-by-step explanation: z-3 means the three is subtracted from the unknown number.

An unknown quantity less than three. would be 3 - z or  z < 3

Answer:

A.) Three less than a number

Step-by-step explanation:

I need this please help me

Answers

Answer:

-14 beacuse thats what it all adds up to

Solve for a.
a
3
9
a =
= ✓ [?]
Pythagorean Theorem: a2 + b2 = c2
Enter

Answers

Answer:[tex]\sqrt{72}[/tex]

Step-by-step explanation:

[tex]a^2+b^2=c^2\\a^2+3^2=9^2\\a^2+9=81\\a^2=72\\a=\sqrt{72}[/tex]

Which quadrilateral is a trapezoid?

Quadrilateral A B C D is shown. Sides A B and D C are parallel. Sides A D and B C have different length measures. Angles A and D are right angles.
Quadrilateral E F G H is shown. Sides F E and G H are congruent. Angles E and H have different measures.
Quadrilateral J K L M is shown. Sides J K and L M are parallel. Sides K L and J M are parallel.
Quadrilateral N O P Q is shown. Sides O N and N Q are congruent. Sides O P and P Q are congruent.

Answers

Answer:

A.   Quadrilateral A B C D is shown. Sides A B and D C are parallel. Sides A D and B C have different length measures. Angles A and D are right angles.

Step-by-step explanation:

Edge 2021

Answer:

its a

Step-by-step explanation:

100% on edge 2021

How are sedimentary rocks changed into metamorphic rocks?

A.
weathering and erosion

B.
melting

C.
cooling

D.
heat and pressure

Answers

Answer:

D. : Heat and Pressure

Step-by-step explanation:

(Before I explain, I think this question belongs to Science category, and not Mathematics. :)

3 factors turn sedimentary to metamorphic rocks. Heat, Pressure, and Chemical Active Fluids which formed.

50 POINTS IF YOU CAN ANSWER.

What is the product of 1/4x-1/2 and 5x^(2) - 2x + 6? Write your answer in standard form. Show your work. Please this is due by tomorrow :c

Answers

Solution:

(4x2 - 2x) - (-5x2 - 8x)

= 4x2 - 2x + 5x2 + 8x.

= 4x2 + 5x2 - 2x + 8x.

= 9x2 + 6x.

= 3x(3x + 2).

Answer: 3x(3x + 2)

Solution:

(4x2 - 2x) - (-5x2 - 8x)

= 4x2 - 2x + 5x2 + 8x.

= 4x2 + 5x2 - 2x + 8x.

= 9x2 + 6x.

= 3x(3x + 2).

Answer: 3x(3x + 2)

Solution:

(4x2 - 2x) - (-5x2 - 8x)

= 4x2 - 2x + 5x2 + 8x.

= 4x2 + 5x2 - 2x + 8x.

= 9x2 + 6x.

= 3x(3x + 2).

Answer: 3x(3x + 2)

Simplify (use only positive exponents) : (3y^10)(2y^2)/8y^5

please explain how you did it so that I can understand what I'm doing <3

Answers

When multiplying variables with exponents, all you have to do is to add the exponents and that’s the ‘product.’

So;

(3y^10)(2y^2) is equal to (3)(2)(y^10+2).

6y^12/8y^5


When dividing exponents, you do the opposite and subtract the exponents. And you divide the whole number by half.


6y^12/8y^5 = 3y^7/4

what is 295 cents in dollars???​

Answers

Answer:

$2.95

Step-by-step explanation:

for this graph, mark the statements that are true​

Answers

A and b


Hope this helps!!!!!


Brainliest plzzzz

A figure is shown.

What is the measure, in degrees, of PLEASE HELP ME

Answers

the answer is 121 degrees

explanation: 59+4x=180
4x=121
121 would be that angle and the other side as well because 59+121=180



hey so don’t trust me on this but i’m like 95 percent sure it’s right


Express (81^1/4)^3
in simplest radical form.

Answers

Your answer in simplest radical form would be 531441/64

Find A, B so that y = A sin(2) + B cos(2) is a solution to the differential equation
4y'' +y' + 5y = 2 cos(x).
A=
BE
Submit Question

Answers

If y = A sin(x) + B cos(x), then

y' = A cos(x) - B sin(x)

y'' = -A sin(x) - B cos(x)

Substitute these into the ODE:

4y'' + y' + 5y = 2 cos(x)

4 (-A sin(x) - B cos(x)) + (A cos(x) - B sin(x)) + 5(A sin(x) + B cos(x)) = 2 cos(x)

(-4A - B + 5A) sin(x) + (-4B + A + 5B) cos(x) = 2 cos(x)

(A - B) sin(x) + (A + B) cos(x) = 2 cos(x)

Then

A - B = 0

A + B = 2

Adding these equation gives

(A - B) + (A + B) = 0 + 2

2A = 2

A = 1   →   B = 1

The perimeter of a rectangle is 36 feet. The length is 2 less than 3 times the width. What is the length? What is the width?

Answers

Width = x
Length = 3x-2

(3x-2)*2+2x= 36
6x-4+2x = 36
8x-4 = 36
8x/8 = 40/8
x = 5

Width = 5
Length = 3*5-2 = 13


Solve the equation for all real solutions in simplest form.
3z^2+17z+16=0

Answers

Answer:

[tex]x=\frac{-17+\sqrt{97}}{6}[/tex], [tex]x=\frac{-17-\sqrt{97}}{6}[/tex]

Step-by-step explanation:

Use the quadratic formula to solve for all real solutions.

Quadratic formula: [tex]x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]

Plug in and solve:

[tex]x=\frac{-17\pm\sqrt{17^2-4(3)(16)}}{2(3)}\\\\x=\frac{-17\pm\sqrt{289-4(3)(16)}}{2(3)}\\\\x=\frac{-17\pm\sqrt{289-12(16)}}{2(3)}\\\\x=\frac{-17\pm\sqrt{289-192}}{2(3)}\\\\x=\frac{-17\pm\sqrt{97}}{6}\\[/tex]

Since that's the farthest we can simplify to, your answers would be the positive and negative versions of the expression:

[tex]x=\frac{-17+\sqrt{97}}{6}[/tex]

and

[tex]x=\frac{-17-\sqrt{97}}{6}[/tex]

Which number is located between 1.2 and 1.4 on the number line

A) 1.19
B) 1.44
C) 1.22
D) 1.03​

Answers

Answer:

D) 1.03 (is the answer)

Step-by-step explanation:

A. ■(1.19) is not in between 1.2 and 1.4 this is wrong. B. ■(1.44) is not in between 1.2 and 1.4 this is wrong. C. ■(1.22) is not in between 1.2 and 1.4 this is wrong.D. ■(1.03) is between 1.2band 1.4 this is correct

A refrigerator costs $429 to buy and its label says that estimated energy costs are $43 per year. Another brand costs $399, but its energy costs are $48 per year. If x is the years of ownership and y is the total dollars spent, write the ordered pair (x,y) that shows at what point the owner would have spent the same amount of money on either brand.

Answers

Answer:

(6, 687)

Step-by-step explanation:

Other Questions
what is the area of a circle with a radius of 4 inches? Explain why when two balls are dropped onto a trampoline the ball that hits second flies higher than the first? what is the approximate square root to 115 An iPhone marked for 268$ was sold for $334 due to its great popularity to customers by what percent did the price go up ( round to the nearest tenth) You see a boat filled with people. It has not sunk, but when you look again you dont see a single person on the boat. Why? Question 6 of 15What duo won the first Grammy ever given out for rap?A. Dr. Dre and N.W.A.B. Queen Latifah and SpinderellaC. DJ Jazzy Jeff and the Fresh PrinceD. Tupac and Dr. Dre need help pls!!!! Algebra Read this sentence from "President Obama's National Address to America's Schoolchildren."And even when you're struggling, even when you're discouraged, and you feel like other people have given up on you, don't ever give up on yourselfWhat does the word discouraged mean?A. very frightenedB. not hesitatingC. not hopefulD. out of control why do we listen to children differently, and why, explain your answer the hypotenuse of a right triangle is 15in and leg one is 12in how long is leg two HELP ASAP PLEASE!1. What precautions should you take when exercising in HOT weather?2. What precautions should you take when exercising in COLD weather?3. What people have a high risk of developing skin cancer?4. What are the benefits of properly warming up before exercise?5. Should exercise be done everyday? Christiane runs for 2.5 kilometers every day. After 7 days, how many meters has Christiane David rents DVDs from a company that charges a $7.00 monthly fee and $1.50 for each DVD rental. He ends up paying $20.50 for the month of June. The equation 1.5 x + 7 =20.5 represents this situation. Solve this equation for x. Type in the NUMBER answer in the text box. What is the relationship between water temperature and solubility of the gaseous solute? After Friday's football game, Megan and her friends go out for ice cream. They share the Mega Mountain sundae and finish the whole thing! When they pay for the sundae, Megan evenly divides the total among 5 people. Each person pays $5.20. Which equation can you use to find the total cost c of the sundae? _--what would be the answer I have these orgo problems for homework and I have no idea where to even begin. We have to find missing reagents and products based on regioselectivity and stereoselectivity. Any help or explanations would be greatly appreciated!! Need help plz its only one question!!! Explain why the Kapp Putsch happened in 1920. PLZ HURRYWhen during the day should flowers be cut from the garden for use in fresh arrangements? Why?