There were 52 problems on Petunia's last math test. She got
one-fourth of them wrong. How many questions did she get right?
Answer:13
Step-by-step explanation:
For the pair of functions, find (f • g)(x) and (gof)(x).
f(x) = -2x2 g(x) = x + 4
A. (g)(x) = -283 - 8x?: (gof)(x) = -2x3 - 8x2
B. (f 9)(x) = -2x2 – 16x - 32; (gof)(x) = -2x2 + 4
C. (og)(x) = -2x2 + 4; (g - f)(x) = -2x2 – 16x - 32
D. (fog)(x) = -2x2 – 32; (g - )(x) = -2x2 + 4
Evaluate the following expression. cos315°
Answer:
[tex]\sqrt{2}/2[/tex]
Step-by-step explanation:
Making a unit circle will be very helpful if you don't already have one. You will use it for years to come.
Use the distributive property to remove the parentheses.
Simplify your answer as much as possible.
1/4(12+8x)
Answer:
3+2x
Step-by-step explanation:
Distribute the equation out.
1/4(12+8x)
(1/4*12)+(1/4*8x)
Multiple those out to get a new equation
3+2x
You cannot add those together because of the variable. Theres no way of knowing what x equals so this is as far as you can go therefor making the answer 3+2x
Kevin plant a total of 72 flowers in equal rolls. Can you plant six rolls of yellow flowers and two rows of my flowers. How many flowers are in each row?
Answer:
9
Step-by-step explanation:
72 flowers in 8 equal rows will have 9 flowers in each row.
__
72 = 8 × 9
Answer:
There are 9 flowers in each of the 8 rows
Step-by-step explanation:
Kevin plants a total of 72 flowers in equal rows he plants 6 rows of yellow flowers and 2 rows of red flowers how many flowers are in each row
Solution
Total flowers = 72 in Equal rows
Yellow flowers = 6 rows
Red flowers = 2 rows
Rows of yellow flowers + Rows of rec flowers = 6 + 2
= 8 rows
Flowers in each row = Total flowers / total rows
= 72 flowers / 8 rows
= 9 flowers
Flowers in each row = 9 flowers
approximate each irrational number to the nearest hundreth √32
Answer:
5.66
Step-by-step explanation:
sqrt(32) = sqrt(16 * 2) = 4 * sqrt(2) = 5.66
-6(9-9v) what is the answer
PLEASE HELP ASAP! URGENT!
Which of the below terms best describe the relationship between <3 and <4
Answer: because 4 would be greater than 3.
Step-by-step explanation:
How many solutions does y=-x^2-4x+7 have
Answer:
x = sqrt(11 - y) - 2 or x = -sqrt(11 - y) - 2
Step-by-step explanation:
Solve for x:
y = -x^2 - 4 x + 7
y = -x^2 - 4 x + 7 is equivalent to -x^2 - 4 x + 7 = y:
-x^2 - 4 x + 7 = y
Multiply both sides by -1:
x^2 + 4 x - 7 = -y
Add 7 to both sides:
x^2 + 4 x = 7 - y
Add 4 to both sides:
x^2 + 4 x + 4 = 11 - y
Write the left hand side as a square:
(x + 2)^2 = 11 - y
Take the square root of both sides:
x + 2 = sqrt(11 - y) or x + 2 = -sqrt(11 - y)
Subtract 2 from both sides:
x = sqrt(11 - y) - 2 or x + 2 = -sqrt(11 - y)
Subtract 2 from both sides:
Answer: x = sqrt(11 - y) - 2 or x = -sqrt(11 - y) - 2
I need help...!!!!!please...
Step-by-step explanation:
sorry i am busy i will answer it tomorrow or free time
WILL DO BRAINLIEST IF RIGHT ASAP Evaluate the expression for r = –2. –40(–31 − 16r)2 + r2 =
Answer: -36
Step-by-step explanation:
To evaluate the expression, you want to plug in r to solve.
-40(-31-16(-2))²+(-2)² [parenthesis]
-40(1)²+(-2)² [exponent]
-40+4 [add]
-36
Now we know the expression is equal to -36 when r=-2.
Someone please help whats the answer
is -7 greater than -4
Answer:
no
Step-by-step explanation:
-7 is smaller than -4 because the farther down the negative part of the number line, the "smaller" it gets
The sum of two numbers is 55. The smaller number is 15 less than the larger number. What are the numbers?
Answer:
a=35
b=20
Step-by-step explanation:
a+b =55
a=b+15
b+15 +b =55
2b=55 - 15
2b=40
b=40 :2
b=20 (the smallest number)
a=20 +15 =35 (the largest number)
Step-by-step explanation:
55=x+15
-15 -15
40=x
Hope it helps!
What is objective ??
Answer:
In math :The objective function is a mathematical term that describes how different variables contribute to a certain value that is being sought to be optimized.
In science: Scientific objectivity is a characteristic of scientific claims, methods and results. It expresses the idea that the claims, methods and results of science are not, or should not be influenced by particular perspectives, value commitments, community bias or personal interests, to name a few relevant factors.
In ela: Being the object or goal of one's efforts or actions. not influenced by personal feelings, interpretations, or prejudice; based on facts; unbiased: an objective opinion. ... being the object of perception or thought; belonging to the object of thought rather than to the thinking subject (opposed to subjective).
Step-by-step explanation:
Define Complementary and Supplementary Angles.
Answer:
Complementary angles: the angles whose sum is 90° are called complementary angles.
Supplementary angles: the angles whose sum is 180° are called supplementary angles.
Step-by-step explanation:
hope it might help....
What is true about the relationship between miles and gallons?
gallons 2
4
8
miles
30
60 90
120
K
Answer:
It is a linear relationship
Write an algebraic expression for each verbal expression: 1.) The product of 5 and twice a number x, decreased by the product of 3 and that same number. 2.) Twice the sum of a number x, and another number y, increased by the product of the first number squared and 8
Answer:
1) (5 times 2x) - (3 times 2x)
2) x+y) times 2 + (x*2 times 8)
explanation:
for "times" put a multiplication sign and the astric ( * ) is for the exponent or meaning "to the power of" :)
The first equation will be formed as: [tex](5 times 2x) - (3 times 2x)[/tex]
The second equation will be performed as [tex](x + y) times\ 2 + (x*2 \ times 8)[/tex]
What is multiplication?When you take a single number and multiply it by several, you are multiplying. There are a number of distinct indications of amplification that people utilize. The "x" sign represents the most typical, however other symbols like the "*" sign are also occasionally used.
1.) The composition of 3 and that identical number, multiplied by 5, lowered by the products of 5, and double that amount will be represented as (5 times 2x) - (3 times 2x)
2.) The product of the square root of the first variable and eight times a quantity x and a quantity will be represented as (x+y) times 2 + (x*2 times 8)
Learn more about multiplication, Here:
https://brainly.com/question/24327297
#SPJ2
Show your work. Round to the nearest tenth if necessary. A. x=9 B. x=8.7 C. x=9.3
Line GH bisects angle FGI, that means angle FGH = angle HGI
To Find:the value of x and angle FGI
Solution:angle FGH = angle HGI
6x - 11 = 4x + 7
or, 6x - 4x = 7 + 11
or, 2x = 18
or, x = 18/2 = 9
angle FGI = angle FGH + angle HGI
or, angle FGI = 6x - 11 + 4x + 7
or, angle FGI = 10x - 4
By putting the value of x, we get
angle FGI = 10(9) - 4
or, angle FGI = 90 - 4 = 86°
Answer:The value of x is 9.
Angle FGI = 86°
Question 3
Consider the parallelogram below with an area of 672 cm?
9x-12
16
Answer:
Are of parallelogram = base * height
672 = b*h
or, (9x-12)* 16 =672
0r 9x-12 = 42
9x = 54
x=6
height =9x-12 = 54 -12 = 42
Step-by-step explanation:
Find the zeros of f(x) = -x + 9x – 18.
Answer:
x=2.25
x= 9/4 x=2 1/4 x= (3/2)^2 these are all possible answers in different forms.
Step-by-step explanation:
PLEASE HELP I WILL MARK YOU BRAINLIEST
Answer:
X= 62 Y=620
Step-by-step explanation:
Y is right because its ten times more than x and x is right because you take the three side and you multiply each one by 2 then you add then all together and you get 62.
Can i be made brainliest i need it
if someone has 18 candy boxes then eats all 18 what do they have
Answer:
They have no more candy
Answer:
diabetes
Step-by-step explanation:
-2/5 x 5/9 Make it a fraction please!
Answer:
-2/9
Step-by-step explanation:
Multiply both fractions: -10/45 and then simplify: -10 divided by 5 =-2
45 divided by 5 = 9
so.... -2/5 x 5/9 = -2/92+2x + x^2 +XY
What would be the answer to this question simplified
Hey there!
ANSWER: [tex]x^2+xy+2x+2[/tex]EXPLANATION:[tex]2+2x+x^2+x*y[/tex]
To solve, you will need to simplify.
[tex]x^2+xy+2x+2[/tex]
Hope this helps!
[tex]\text {-TestedHyperr}[/tex]
Simplifying expressions, I just need questions 8-18... help me please
first term is 3, common difference is 4 what is the 5th term
Answer:
19
Step-by-step explanation:
The n th term of an arithmetic sequence is
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 3 and d = 4 , thus
a₅ = 3 + (4 × 4) = 3 + 16 = 19
Find the distance from each vertex on the preimage ABC to the center of rotation p enter the values in the table do the same for each vertex on the other images
Answer:
Enjoy.
Step-by-step explanation:
school
Answer:
Step-by-step explanation:
Suppose A and B are points. How many distinct lines contain both A and B?
оо
1
2
3
infinitely many
Answer:
The correct option is;
1
Step-by-step explanation:
A line in geometry is an array of points that lay on the path of a ray and extends along the ray path in both directions infinitely, while a point in geometry marks a location
Therefore, given that the points A and B are on the same line, and are therefore on the same ray that gives the direction of the line, the number of distinct lines that can contain the both A and B, given that the original line extends to infinity in both direction is 1.