which expression is equivalent to the given expression? 3x^2+5x-7(x^2+4)
Answer:
-(4 x^2 - 5 x + 28)
-4 x^2 + 5 x - 28
-1\/16 (8 x - 5)^2 - 423\/16
Step-by-step explanation:
any of these equations are equal to 3x^2+5x-7(x^2+4)
The equivalent expression is -4 x² + 5 x - 28.
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Given:
3x²+5x-7(x²+4)
Now,
-(4 x² - 5 x + 28)
-4 x² + 5 x - 28
-1\/16 (8 x - 5)² - 423\/16
Hence, the equivalent expression is -4 x² + 5 x - 28.
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Help me plssss Which inequality is represented by the graph below? Check all that apply.
O x>9
O x<9
O any rational number greater than or including 9
O any rational number less than or including 9 O any rational number greater than 9
O any rational number less than 9
Answer:
B
Step-by-step explanation:
im sorry if its wrong, but it's an open circle and the values that the arrow is including are less than 9.
Answer: 2,4,5
Step-by-step explanation:
7) let f(x)=2x squared - 5x +9
find a, b, and c
a) 1, 5, and 9
b) 2,- 5, and 9
c) 0,5, and 9
d) none of these answers is correct.
Answer:
a
Step-by-step explanation:
ITS RIGHT
what is the expression for the probability when the disease D is present but the test says its not? P = Event that test is positive, D = Event disease is present
Answer:
[tex]P(D\ and\ P^c)[/tex] or [tex]P(D\ and\ P')[/tex]
Step-by-step explanation:
Given
P = Test is positive
D = Disease is present
Required
Write an expression when disease is present but test says that the disease is not present
The above statement can be split to two
Disease is Present & Test is not positive
The first statement:
Disease is Present means D
The second statement
Test is not positive means not P
Mathematically;
not P means P' or [tex]P^c[/tex]
So, the required expression is: [tex]P(D\ and\ P^c)[/tex] or [tex]P(D\ and\ P')[/tex]
Which linear equation represents the data given in the table?
Answer:
c
Step-by-step explanation:
How many solutions does this equation have?
-7d + 5 = -8d
no solution
one solution
infinitely many solutions
Answer:
one solution..........
The temperature was 8 degrees below zero at 5 A.M. By 1 P.M. the temperature had risen 23 degrees. What was the temperature at 1 P.M.?
Answer:
15 degrees
Step-by-step explanation:
What is the slope between(-4,0) and (0, 2)?
A: 1/2
B: 2
C: - 1/2
D: - 2
Answer: A
Step-by-step explanation:
[tex]\frac{y2-y1}{x2-x1}[/tex]
[tex]\frac{2-0}{0-(-4)}[/tex]
[tex]\frac{2}{4}[/tex]
1/2
Answer:
a. m = 1/2
Step-by-step explanation:
Brainliest Please!!!!!
Katie deposited $2,000 into a new savings account that paid interest at an annual rate of 3%, compounded continuously. If there were no other transactions, approximately how much money was in Katie's account 6 years after she made the deposit?
Answer: $ 2388.10
Step-by-step explanation:
Given: Principal value : P= $2,000
annual rate : r= 3% = 0.03
Time : t= 6 years
Formula to calculate the accumulated amount if compounded continuously :-
[tex]A=P(1+r)^t[/tex]
[tex]A=2000(1+0.03)^6\\\\=2000(1.03)^6\\\\=2000(1.1940523)\\\\=2388.10[/tex]
Hence, Money in Katie's account after 6 years = $ 2388.10
Which of the following lists the sides of △DEF in order from shortest to longest?
Answer:
The 2nd option.
Step-by-step explanation:
Since Angle D is 68 degrees side EF would be the longest.
Side DF is the shortest side it is opposite the smallest angle.
Side EF is in the middle since opposite the next biggest angle.
Side EF is again the longest since Angle D is the biggest at 68 degrees.
Answer:
B
Step-by-step explanation:
A road running north to south crosses a road going east to west at the point P. Car A is driving north along the
first road, and car B is driving east along the second road. At a particular time car A is 40 miles to the north
of P and traveling at 60 mi/hr, while car B is 30 miles to the east of P and traveling at 75 mi/hr. How fast is the
distance between the two cars changing?
Answer:
25 ph
Step-by-step explanation:
Students are selling chocolate bars for a school fundraiser. They collect $17 for every 10 chocolate bars they sell. Suppose M is the amount of money the students collect for selling C chocolate bars. Write an equation that reflects the relatioship between M and C.
Answer:
17=10x or m=c
Step-by-step explanation:
In the figure, if l and k are parallel lines, what is the value of x+y in degrees?
Answer:
62
Step-by-step explanation:
x + 149 = 180 so
x = 31
y + 149 = 180 so
y = 31
31 + 31 = 62
What are the coordinates of the x-
intercept of the line in the graph
shown below?
Sean is buying 9/16
pound of tea at a tea shop. The cost of tea is $24 per pound.
The cost of 9/16 pounds of tea is $13.50.
How to determine the cost of 9/16 pounds of teaIn order to determine the cost of 9/16 pounds of tea, the cost of a pound of tea would be multiplied by 9/16 pounds.
Cost of 9/16 pounds of tea = 9/16 x 24
= $216/16
= $13.50
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8th grade math help me out pls
Answer:
1/4
Step-by-step explanation:
(-7 , 2) ; (9 , 6)
slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\[/tex]
[tex]= \frac{6-2}{9-[-7]}\\\\=\frac{6-2}{9+7}\\\\= \frac{4}{16}\\\\= \frac{1}{4}[/tex]
The fifth term of an AP is 25 and the fifteenth term is 75 .Find the 10th term
Answer: I think it's 50
Step-by-step explanation:
5 = 25
15 = 75
Presumeably, 10 = 50
Answer:
50
Step-by-step explanation:
5th term=a+4d
10th term=a+9d
15th term=a+14d
since
5th term=25 and the 15th term=75
so we find the value of unknown 'd' with is the common difference
a+4d=25
a+14d=75
-10d=-50
d=5
after finding the value of d we can now find the value of 'a'
a+4(5)=25
a=5
hence the 10th term can be obtained
a+9d
5+9(5)=50
need help on this thank you
Core Algebra
Englis
Solving for an Unknown Using the Distributive Property
180(n-2)
The equation a = represents the angle measuresya, in a regular n-sided polygon. When the equation is
solved for n, n is equal to a fraction with a denominator of a - 180. What is the numerator of the fraction?
Answer:
-360
Step-by-step explanation:
I got it right
how many does this have
Reese is using a coin to predict the gender of the puppies born to her dog. According to Reese's model, which is the probability that a litter of 5 puppies will be all males? StartFraction 1 over 32 EndFraction StartFraction 1 over 16 EndFraction StartFraction 1 over 10 EndFraction One-half
Answer:
[tex]\frac{1}{32}[/tex]
Step-by-step explanation:
According to Reese's model, let the head of the coin represent male, and the tail represents female. The outcome can either be a male or a female.
Total outcome = 2
pr(male) = [tex]\frac{1}{2}[/tex]
pr(female) = [tex]\frac{1}{2}[/tex]
Therefore the probability of male equals the probability of females i.e [tex]\frac{1}{2}[/tex].
Therefore,
pr(a litter of 5 puppies will be males) = [tex]\frac{1}{2}[/tex] x [tex]\frac{1}{2}[/tex] x [tex]\frac{1}{2}[/tex] x [tex]\frac{1}{2}[/tex] x [tex]\frac{1}{2}[/tex]
= [tex]\frac{1}{32}[/tex]
According to Reese's model, the probability that a litter of 5 puppies will be males is [tex]\frac{1}{32}[/tex].
Answer:
I think that it's 1/32 if i'm not right pleas tell me.
Step-by-step explanation:
What is the value of 3 + x when x = 19?
Answer:
Its 22
Step-by-step explanation:
x is 19
so 3+19 is 22
Victoria moved into a new apartment and called to install her cable. They told her they charge $45 to install the cable box and $60 for each month of service. Which equation represents how much victoria will owe after x months?
Answer:
[tex]y=45+60x[/tex]
Step-by-step explanation:
Step one:
given data
The charge is $45 to install the cable box and $60 for each month of service
Required
The linear expression for the situation.
Step two:
let the number of months be x and let the total charges be y
Hence the expression for the total charges is
[tex]y=45+60x[/tex]
What type of function is represented by:
f(x)={-x+4, x<=4
{x-4, x>4
a. Greatest Integer Function
b. Step Function
c. Absolute Value Function
d. None of the Above
The function f(x) = | x - 4| is represented by the Absolute Value Function. Then the correct option is C.
What is an absolute function?The absolute function is also known as the mode function. The value of the absolute function is always positive.
The absolute function is given as
f(x) = | x |
Then the function is given below.
[tex]f(x) = \left\{\begin{matrix}-x+4 & x\geq 4 \\\\x-4 & x < 4 \\\end{matrix}\right.[/tex]
Then the function can be written as
f(x) = | x - 4|
Then the graph of the function is given below.
Then the correct option is C.
More about the absolute function link is given below.
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The circumference of a circle is 18.45 yards.
What is the radius of the circle, in yards? Round your answer to the nearest tenth.
Answer:
the radius is 2.94
Step-by-step explanation:
first divide the circumference by pie 3.14
the answer you get will be 5.8 is your diameter now divide 5.8 by 2 you get 2.935 round up your answer and it is 2.94 your radius
help PLEASEEEEEEEEEEEEEEEEE
Answer:
B ; Point B
Step-by-step explanation:
ok to be honest I really don't know
11) What is the inverse function of f(x) = x^3+ 5?
Answer:
[tex]\sqrt[3]{x-5}[/tex]=y
Step-by-step explanation:
f(x)=x^3+5
y=x^3+5
y-5=x^3
[tex]\sqrt[3]{x-5}[/tex]=y
can someone at least give me an idea on how to do this?.
all i have rn are 12 points and ill give brainlynest
Answer:
fbhbgdbd
Step-by-step explanation:
A seagull is flying at a height of 10 feet above ocean. The seagull dives into the water to catch a fish that is at a depth of 6 feet. What is the change in elevation of the seagull?
Answer:
The change in elevation of the seagull is -16 ft
Step-by-step explanation:
Displacement
The displacement, unlike distance, considers the direction of the lengths occurring in the systems.
To solve the problem, we need to set a zero-level reference. Let's assume the sea level as zero height, any position above this reference as positive, and any position below this reference as negative.
The seagull is flying at a height of 10 ft above the ocean. Thus, its position is positive +10 feet.
The seagull then dives into the water to catch a fish at a depth of 6 feet. This position is negative: -6 ft.
The change in elevation is found by subtracting the final elevation and the initial elevation:
change = -6 ft - 10 ft = -16 ft
The change in elevation of the seagull is -16 ft
Last EAST question worth 50 POINTS!
What is the simplified expression show above?
Answer:
4x+8
Step-by-step explanation:
[tex]\sf \longmapsto \: 2(2x + 5) - 3[/tex]
Distribute[tex]\sf \longmapsto \: (2)(2x)+(2)(5)+−3[/tex]
[tex]\sf \longmapsto4x+10+−3[/tex]
Combine like terms[tex]\sf \longmapsto4x+10+−3[/tex]
[tex]\sf \longmapsto(4x)+(10+−3)[/tex]
[tex]\sf \longmapsto4x+7[/tex]