Answer:
Evaulated Answer is -4
Step-by-step explanation:
Use the rules for multiplication
[tex]2(-2)^2+6(-2)[/tex]
Rewrite
[tex]2(-2)^2-6*2[/tex]
Evaluate
[tex]-2(-(-2)^2+6)[/tex]
Calculate
[tex]-2(-4+6)[/tex]
Multiply
[tex]-2*2=4[/tex]
The answer is -4.
The value of given expression for x=-2 is -4.
What is an expression?An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.
The given expression is 2x²+6x.
Substitute x=-2 in the expression 2x²+6x, we get
2(-2)²+6(-2)
= 8-12
= -4
Therefore, the value of given expression for x=-2 is -4.
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In both "Camping with the President" and "A Walk with Teddy," President Theodore
Roosevelt spends time in the natural world. What effect did these experiences have
on him?
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A. He gained a bigger appreciation for his comfortable lifestyle.
о
B. His appreciation for nature grew along with his desire to protect it.
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C. He regretted not being able to live in the wilderness.
o
D. His gave up his goal to become a professional naturalist.
Answer:
he gained a bigger appreciation for his comfortable life
Skye wants to buy 3 erasers each for her 4 best friends. If erasers cost $0.72 each, how much money does Skye need?
Answer:
3 x 4 = 12 erasers 12 x $0.72 = $8.64
Step-by-step explanation:
Answer: Skye will need $8.64
Step-by-step explanation:
We can start by seeing how many erasers she needs in total. We can multiply the 3 erasers for all 4 of her friends.
3 x 4 = 12 Erasers
Now we multiply the cost of one eraser by the total amount she needs, 12.
0.72 x 12 = 8.64
So the amount of money Skye needs for all her friends to have 3 erasers is $8.64
Solve for x on the diagram below.
So here,
x°+100°+( x+12)°= 180°(being in a straight line)
2x° + 112°=180°
2x°=180-112°
x=68/2
x=34°
Evaluate Expression
|-7(2)|
Answer:
14
Step-by-step explanation:
[tex] | - 7(2)| [/tex]
[tex] | - 7 \times 2| = | - 14| [/tex]
[tex] = 14[/tex]
HELPPPPPPPPP ASAPPPPPPP!!!!!!!!
Answer:
49 × 3.14 = 153.86
Step-by-step explanation:
1/3 × 3.14 × 49 × 3 = 153.86
josh and karl are 119 miles apart, traveling towards each other. If Victoria travels 12 mph and Alejandra travels 5 mph how long until they meet?
Answer:
v1+v2= 12+5= 17
T= s : (v1+v2)=119: 17= 7
Step-by-step explanation:
Divide (long division)
(4n^4+4n^3+16n^2)+4^2
9514 1404 393
Answer:
n^2 +n +4
Step-by-step explanation:
Since the divisor has only one term, the quotient is formed by dividing the terms one at a time.
[tex]\dfrac{4n^4+4n^3+16n^2}{4n^2}=\dfrac{4n^4}{4n^2}+\dfrac{4n^3}{4n^2}+\dfrac{16n^2}{4n^2}=\boxed{n^2 +n +4}[/tex]
__
Your long division tableau will subtract n^2×4n^2 = 4n^4 to form the new dividend 4n^3+16n^2. Then you will subtract n×4n^2 = 4n^3 to get the new dividend of 16n^2. The final quotient term is 4, and you will subtract 4×4n^2 to get a remainder of 0. You will have written the quotient as n^2+n+4.
Write a related addition equation for the subtraction equation.
12 – 7 = 5
A related addition equation is
Answer:
-7+12 will also give u 5 with a positive sign
A number increased by 10 is 32. How would I write that as an equation?
Answer:
4.
Step-by-step explanation:
Remember that “of” means multiplication, so from your question we infer the following equation:
(1/2)x + 10 = 12
First, subtract 10 from both sides:
(1/2)x = 2
Multiply both sides by 2 to eliminate the fraction:
x = 4
Now substitute for x in the original equation to prove this:
(1/2)x + 10 = 12
x = 4
(1/2)4 + 10 = 12
4/2 + 10 = 12
2 + 10 = 12
12 = 12
So the number, x, is 4.
it is an example of your question.
please mark me brainliesth=54+1/2at^2 solve for a
Im lost on if I should square the 1/2at first?
Other answer formats are possible.
===========================================================
Explanation:
Let's say we want to solve the equation h = 54 + 10a for the variable 'a'. This is relevant to the problem at hand don't worry.
What we'd do is two things
Subtract 54 from both sides Divide by 10So the steps look like this
h = 54 + 10a
h-54 = 10a
(h-54)/10 = a
a = (h-54)/10
Now let's say we wanted to solve this equation: h = 54 + ca, where c is a constant and can stand in place of any number. The steps would be pretty much identical. Instead of dividing both sides by 10, we divide both sides by c. We can do this as long as c isn't zero of course.
That means the equation h = 54+ca solves to a = (h-54)/c
---------------------------
Why did I do those examples? To build up to the equation your teacher gave you.
Let's replace c with 0.5t^2
This is because 1/2 = 0.5
The 1/2at^2 is the same as (1/2t^2)a
So instead of a = (h-54)/c, we'd get a = (h-54)/(0.5t^2)
As a last optional and encouraged step, we can multiply every term by 2 to get rid of that decimal value.
Doing so makes a = (h-54)/(0.5t^2) turn into a = (2h-108)/(t^2)
---------------------------
Here's another way to solve:
h = 54 + (1/2)at^2
h-54 = (1/2)at^2
2(h-54) = at^2
2h-108 = at^2
(2h-108)/(t^2) = a
a = (2h-108)/(t^2)
In the second step, I subtracted 54 from both sides. Immediately afterward, I multiplied both sides by 2 so I could clear out the fraction. Then I divided both sides by t^2 to fully isolated the variable 'a'.
what is the perimeter of PQR with vertices P(-2, 9), Q(7, -3) R(-2, -3) in the coordinate plane?
Answer:
[tex]p (perimeter) = 36[/tex]
Answer:
36.
Step-by-step explanation:
The perimeter = PQ + QR + RP
= √[(-2 -7 )^2 + (9- (-3))^2)] + √[(7 - (-2))^2 + (-3 - (-3)^2)] + √((-2 -(-2)^2+(-3-9)^2)]
= √(81+144) + √81 + √144
= √225 + √81 + √144
= 15 + 9 + 12
= 36
Josie has $147 left on her checking account she writes a check for $56 and then gets paid $225 what is the balance in her checking account now?
Answer:
A
digit to ghzhzjujzj hazing
Step-by-step explanation:
Joslin uphill to
Gun giddy
i will mark u brainliest please help
Answer:
30+(2x+7)+63=180(sum of angles of triangle )
30+2x+7+63=180
2x+100=180
2x=180-100
x=80/2
x=40
Answer:
[tex]\boxed {\boxed {\sf (2x+7)+30+63= 180}}[/tex]
[tex]\boxed {\boxed {\sf x=40}}[/tex]
Step-by-step explanation:
We are asked to write an equation to solve for x and use the equation to find x.
We know that the angles in a triangle must add to 180 degrees. Therefore, the sum of the three angles in this triangle: 30, 63, and (2x+7) must equal 180. We can set up an equation.
[tex](2x+7)+ 30 +63= 180[/tex]
Now we can use the equation to solve for x. First, we combine like terms on the left side of the equation. The 3 terms without variables or constants can be added.
[tex]2x+ (7+30+63)= 180[/tex]
[tex]2x+ (100)= 180[/tex]
We are solving for x, so we must isolate the variable. 100 is being added to 2x. The inverse operation of addition is subtraction. Subtract 100 from both sides of the equation.
[tex]2x+100-100= 180-100 \\2x=180 -100 \\2x=80[/tex]
x is being multiplied by 2. The inverse operation of multiplication is division. Divide both sides of the equation by 2.
[tex]\frac {2x}{2}= \frac{80}{2}[/tex]
[tex]x= \frac {80}{2} \ \\[/tex]
[tex]x=40[/tex]
The equation is (2x+7)+ 30+63= 180 and x is equal to 40.
At Chase Bank, you earned $50 in interest last year. If the interest rate is 4.5% and
your money was in the account for one year, what was your principal deposit, rounded to
the nearest dollar?
Answer:
$1,111
Step-by-step explanation:
Let x = principal amount
x multiplied by 1.045 will equal the final amount
Since 50 was earned, x + 50 will also equal the final amount
1.045x = x + 50
Let's move the x terms to left side by subtracting both sides by x
1.045x = x + 50
- x - x
0.045x = 50
Divide both sides by 0.045 to isolate the x variable
0.045x/50 = 50/50
x = 1,111.111111111
When Han makes chocolate milk, he mixes 2 cups of milk with 3 tablespoons of chocolate syrup. Here is a table that shows how to make batches of different sizes. What is the constant of proportionality for this relationship?
your answer would be 1.5
Answer:
The constant of the proportionality for this relationship is tablespoons and chocolate and cups of syrup.
Step-by-step explanation:
Is 62.78 an integer?
Answer:
no
Step-by-step explanation:
Like whole numbers, integers don't include fractions or decimals.
62.78
= 3139/50 which is a fraction.
Answer:
NOStep-by-step explanation:
An Integer is a whole number, such as 3 or 4 but not 3.5,...Therefore it is not possible for 62.3 to be a integer...., but we can round it as 63 to form integer....HOPE THIS HELPS YOU......Open Response
How many times less is the
value of the 4 in 356,740 than
the 4 in 763,450? Explain.
Answer:
10 times less
Step-by-step explanation:
In the number 356, 740, the 4 is in the tenths place.
In 763,450, the 4 is in the hundredths place.
100/10 = 10
The sum of two-fifths of y and one-sixth of h, minus 2
hi <3
i'm assuming you want the expression written out
it would be:
(2/5y + 1/6h) - 2
hope this helps :)
Find a+b, 2a+3b,|a|, and |a-b|. a=3i-5j+3k, b=2j-k
Help Please For Math Class
Answer:
the answer is B D and A.
Step-by-step explanation:
(ignore) hshehshsnebajjsjanananahabsn
6. Find the equation of the line perpendicular to y=2 through (1,5). * A. y 2 B.X D.X=2 耕
Answer:
Step-by-step explanation:
To convert the measurements of metric system into another units of metric system we have to either multiply it by 10, 100, 1000, 10000, 100000, etc or divide by 10, 100, 1000, 10000, 100000, etc.
If we have to convert bigger unit into smaller unit then we have to multiply the unit by the multiples of 10, then the decimal point is shifted to right by 1 or 2 or 3 or 4 , etc. places.
For example, 1.2 kg is converted into g so we have to multiply it by 1000, so decimal point is shifted to right by 3 places, i.e.,
1.2 x 1000 = 1200 g
If we have to convert smaller unit into bigger unit then we have to divide the unit by the multiples of 10, then the decimal point is shifted to left by 1 or 2 or 3 or 4 , etc. places.
For example, 12 cm is converted into m so we have to divide it by 100, so decimal point is shifted to left by 2 places, i.e.,
12 / 100 = 0.12 m
Help plz asap answer first gets. Brainliest
Answer:
1. [tex]\frac{3}{20}[/tex] 5. [tex]\frac{3}{14}[/tex] 9.[tex]\frac{14}{15}[/tex]
2. [tex]\frac{55}{4}[/tex] 6.[tex]\frac{11}{10}[/tex] 10.[tex]\frac{19}{6}[/tex]
3. [tex]\frac{7}{6}[/tex] 7. [tex]\frac{22}{15}[/tex] 11. [tex]\frac{47}{24}[/tex]
4.[tex]\frac{17}{12}[/tex] 8. [tex]\frac{16}{21}[/tex] 12. [tex]\frac{19}{42}[/tex]
hope this helps!
Asher pays $156 every 6 weeks for piano lessons. what is the price for per year for piano lesson?
Which of the following is an even unction?
Answer:
f(x) = |x|
Step-by-step explanation:
because f (–x) = f (x), so all of the signs are the same), then the function is even.
draw 1 1/6 as a model
what is (-11/21)+9/21 simplified
Explanation:
Ignore the denominators for now.
The numerators -11 and 9 add up to -11+9 = -2
Then we place that result over the common denominator 21 to get the final answer -2/21
This trick only works if the denominators are all the same. If not, then you'll need to find the LCD first before you can add the fractions. Luckily, all of the denominators were the same at 21.
(-11/21)+9/21
= (-11+9)/21
= -2/21.ans...
what is prime number
Answer:
a number that is divisible only by itself and 1 (e.g. 2, 3, 5, 7, 11).
What could I say for this question anybody who answers this gets brainlist
Answer ASAP!
Which of the following is an example of a false negative?
Test results confirm that a woman is pregnant.
Test results indicate that a woman is not pregnant when she is.
Test results confirm that a woman is not pregnant.
Test results indicate that a woman is pregnant when she is not.
Answer:
Test Results indicate that a woman is not pregnant when she is.
Test Results indicate that a woman is pregnant when she is not
plzzzz I need help
Name the geometric term(s) modeled by each object. 16. 17. 18. 19. a tablecloth 20. a partially-opened newspaper 22. a knot in a string 21. woven threads in a piece of cloth Draw and label a figure for each relationship. 23. Line AB intersects plane Q at W. 24. Point T lies on WR. 25. Points Z(4,2), R(-4, 2), and S are collinear, but points Q, Z, R, and S are not. 26. The coordinates for points C and R are (-1, 4) and (6,4), respectively. RS and CD intersect at P(3,2). Lesson 1-1 Points, Lines, and Planes 9
Geometric terms are terms used for describing geometric objects
The correct responses for the geometric term modeled by each object are as follows:
16. The geometric term modelled by the tip of the needle is a point
17. The figure modelled by he rail track are lines including; Parallel lines and intersecting lines
18. The figure modelled by the cloth is a plane with points
19. A table cloth models a plane
20. A partially opened newspaper models an angle, and two planes intersecting
21. Woven threads in a piece of cloth models intersecting lines
22.A knot in a string models a point on a line
Required:
To draw and model a figure for each relationship
Solution:
23. The required drawing of the model of line AB intersecting at Q and W is attached
24. The required drawing of the model of point T that lies on [tex]\overset \longleftrightarrow {WR}[/tex] is attached
25. The required drawing of the model of point Z(4, 2), R(-4, 2), and collinear point S, with Q, Z, R, and S are not, is attached
26. The given coordinates are; C(-1, 4) and R(6, 4). The point P(3, 2) is the intersection of the lines [tex]\overset \longleftrightarrow {RS}[/tex] and [tex]\overset \longleftrightarrow {CD}[/tex]
The required drawing is attached
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