Answer:
1) [tex]3x^{2}[/tex]-19x-14
2) x=0, x=3
Step-by-step explanation:
1) (3x+2)(x-7)
Distribute the 3x to both x and -7, as well as the 2 to both x and - 7.
[tex]3x^{2}[/tex] - 21x + 2x -14
Combine like terms
[tex]3x^{2}[/tex] - 19x - 14
2)
In order to find the factors of x, set the expression equal to 0.
[tex]3x^{2}[/tex] - 9x = 0
Factor out the highest common multiple (3x)
3x(x-3) = 0
In order for x to satisfy the equality, you must either have a 0 in the parenthesis -> (x-3)=0 -> x =3
Or 3x = 0 -> x = 0
Hope this helps!
Katie bought 0.78 pounds of peanuts and 0.07 pounds of raisins. How many pounds of snacks did she buy in all?
Answer:
0.85
Step-by-step explanation:
you add them... duh
What is the probability of rolling an even number on a number cube containing numbers 1 through 6? *
Answer:
[tex]\frac{1}{2}[/tex] or 50%
Step-by-step explanation:
Cube has 6 sides = 3 odds and 3 even
probability is found using
[tex]\frac{number of favourable outcomes}{number of total outcome}[/tex] which is [tex]\frac{3}{6} or \frac{1}{2}[/tex]
1/2 = 50%
8m+4m=12m...one solution.. two solutions.. no solutions.. infinite solutions.. which solution is it?
Answer:
One Solution
Step-by-step explanation:
10)
What is the circumference of a 12-inch diameter pizza? Leave the answer in terms of it.
A)
371
B)
677
o
1270
D)
2471
Plsss helppp!!
what comes after 47?
URGENT HELP !!!!!! Answer correctly !!!!!!!!!!!! Will be marking brainliest !!!!!!!!!!!!!!
Answer:
exact: 3 √ 5
decimal: 6.70820393
Step-by-step explanation:
Hope this helps
slove for x pleaseee
what is the value of x
Answer: 35
Step-by-step explanation:
You would set up the equation
25/x=20/28 cross multiply 25•28 and then divide by 20
Step-by-step explanation:
25/x = 20/28
20x = (25)(28)
x = (25)(28) ÷ 20
9) Find the value of two numbers if their sum is 17 and their difference is 1.
Answer: 9 and 8?
Step-by-step explanation:
can someone help pls pls pls ill give brainliest
Answer: x= - 3/4
Step-by-step explanation: too much to explain
what is the y intercept of 2y - 2x = 8
Answer:
Step-by-step explanation:
Write in y = mx + b form
here, b ----> y intercept
2y - 2x = 8
2y = 2x + 8 {Divide the equation by 2}
[tex]\frac{2y}{2}=\frac{2x}{2}+\frac{8}{2}\\[/tex]
y = x + 4
y-intercept = 4
If it costs $80,000 to put on an event and the total revenue is $250,000, what is the profit as a percentage of revenue? (Round to the nearest percent.)
Is 12/25 greater than 1
Answer:
no
Step-by-step explanation:
Answer:
no
Step-by-step explanation:
Identify the mapping diagram that represents the relation and determine whether the relation is a function.
{(–3, –6), (–1, –6), (5, –6), (8, –6)}
Which of the following is true?
choice b.
choice c.
choice d.
choice a.
Answer: THE ANSWER IS
Determine if the relation is a function.
The relation is a function.
Find the domain and range.
Domain:
{−3, −1, 5, 8}
Range:
{−6}
Graph.
{(−3,−6), (−1, −6), (5, −6), (8, −6)}
Determine if the relation is linear.
The relation is linear
Find the inverse.
( − 6 , − 3 ) , ( − 6 , − 1 ) , ( − 6 , 5 ) , ( − 6 , 8 )
Step-by-step explanation: IT'S NOT A OR D.. ig
1: Recall that a function from a set to a set is a relation that assigns to each element in the set exactly one element in the set . The set is the domain (or set of inputs) of the function and the set contains the range (or set of outputs).
The general characteristics of functions are:
A. Each element in A must be matched with an element in B.
B. Some elements in B may not be matched with any element in A.
C. Two or more elements in A may be matched with the same element in B.
D. An element in A (the domain) can not be matched with two different elements in B.
________________________________________________
Solving this problem we have:
1. The mapping diagram is represented in Figure 1. As you can see this is a function. Each element in A is matched with an element in B. All the elements in A are matched with the same element in B. So, this fulfills with the definition of function.
2. The mapping diagram is represented in Figure 2. This is not a function. Notice that an element in A (the domain) is matched with two different elements in B, that is, -8 is matched with -6 and 1.
2: #1) This is a function.
#2) This is not a function.
(The mapping diagrams are not present to match to these.)
Explanation:
A function is a relation in which each element of the domain is matched to no more than one element of the range; in other words, no x gets mapped to more than 1 y.
In #1, no x is mapped to more than 1 y, so it is a function. However, in #2, -8 is mapped to both -6 and to 1; this x is used more than once, so this is not a function.
3: what is the primary responsibility of the legislative branch
--------------------------------------------------------------------------------------------
it represents new mexico in foreign affairs
4: Answer:
Option D is correct.
The relation {(-8, -6) (-5, 2) (-8, 1) (7, 3)} is not a function.
Step-by-step explanation:
Given the relation: {(-8, -6) (-5, 2) (-8, 1) (7, 3)}
Domain is the set of all possible inputs of a relation i.e { -8, -5 , -8 , 7}
Range is the set of output values of a function i.e, {-6, 2 , 1 , 3}
The mapping as shown below in the figure:
A function is a relation in which every element of the domain is matched to not more than one element of the range.
In other words, we can say that ,no value of x gets mapped to more than 1 value of y.
Since, from the mapping you can see that the domain value -8 paired with -6 and 1; as x is used more than once.
Therefore, this relation is not a function
jamar has a 8 foot long piece of wood that he wants to cut to build a tree house if each is going to be 5/6 foot long, what is the greatest number of pieces he will be able to use
Answer:
The greatest amount of pieces he would be able to use would be 9 because 8 divided by 5/6= 9 and 3/5.the 3/5 piece is too short.
Step-by-step explanation:
Help pls ASAP!!! THX
Answer:
a concave lens is exactly the opppostie with outer surfaces curving inward, so it makes parallel light rays curve outward or diverge. That's why concave lenses are sometimes called diverging lenses. ... The distance from the center of the lens to the focal point is, again, the focal length of the lens.
Step-by-step explanation:
twice a number decreased by six is 32 use "x" for the variable
please hlelp meeeeeeeeeeeeee i need help
Answer:
3/4
Step-by-step explanation:
Total number of cases = 8 [1,2,4,2,5,3,1,2]
No. of number less than 4 = 6 [1,2,2,3,1,2]
Probability = 6/8 = 3/4
Answer: 75%
Step-by-step explanation:
Well there are 8 possibilities every time you spin. The chance is 6/8 that you land on a number less than 4, if you spin it once (since 6 out of the 8 possibilities are less than 4). So you just have to divide 6/8 which is 0.75. Multiply by 100 (move the decimal over 2 times to the right) to get the percentage which is 75%.
Bethany can mow her family’s lawn in 4 hours. Her brother Colin can mow the lawn in 3 hours. Which equation can be used to find the number of hours, x, it would take for Bethany and Colin to mow the lawn together?
Answer:
Step-by-step explanation:
t/4+t/3=1
(3t+4t)/12=1
7t/12=1
7t=12
t=12/7
x=(12/7)hours
Answer:
1/4 + 1/3 = 1/x
Step-by-step explanation:
"Bethany can mow her family’s lawn in 4 hours."
In 1 hour, she does 1/4 of the job.
"Her brother Colin can mow the lawn in 3 hours."
In 1 hour, he does 1/3 of the job.
When they work together, in 1 hour they do 1/4 + 1/3 of the job.
When they work together, they can mow the lawn in x hours.
In 1 hour, they do 1/x of the job. This means that 1/4 + 1/3 must equal 1/x.
1/4 + 1/3 = 1/x
A,B,C, or D?
________
Answer: It is
D. Blue
!
which equation is represented by the phrase a number increased by 3 equals 10
30 POINTS!! PLEASE HELP
What is the area of the shape below?
Answer:
168 square feet
Step-by-step explanation:
A = 18 x 8 + 8 x 6 x 1/2
A = 144 + 24
A = 168
Hope that helps!
Answer:
150
-i just learned that and you have to multiply lenght × width × height
18×8×6 and its 150
What is the slope of y=-4
Answer:
Zero
Step-by-step explanation:
Any equation that is y = a number, you have a horizontal line, with a zero slope, think of HOY, H(orizontal) O=zero Y=#
Help please!!! I’ll give brainliest!!
Answer:
g= -9
Step-by-step explanation:
The function y= -0.2 + 0.5 represents the percent y (in decimal form) of battery power remaining x hours after you turn on a laptop computer.
A. Identify and intercept the x- intercept
B. Identify and intercept the y-intercept
Answer:
A
Step-by-step explanation:
intercept the x- intercept
Answer:
Step-by-step explain
x-intercept: 2.8 hours
y-intercept: 0.7 . . . . fraction of power remaining
Step-by-step explanation:
The equation is in slope-intercept form, so the y-intercept can be read directly: 0.7.
To find the x-intercept, set y=0 and solve for x:
0 = -0.25x +0.7
0.25x = 0.7 . . . . . add .25x
x = 2.8 . . . . . . . . . multiply by 4 (that is, the reciprocal of 0.25)
The x-intercept is 2.8; the y-intercept is 0.7.
evaluate expressions(-2/5) (-1 1/4)
THIS IS ONE OF THE BENCHMARK QUESTIONS THATS ALL IT SAID
Answer:
Exact Form:
−33/20
Decimal Form:
−1.65
Mixed Number Form:
−1 13/20
15 pounds of beans are distributed equally into 10 bags to give out at the food bank. How many pounds of beans are in each bag? Enter you answer in simplist form.
Answer:
1.5, or 1 1/2
Step-by-step explanation:
Find the equation of the line shown.
Pls helllppp
Answer:
what side is it asking for ? right or left
4(x + 7) = 38
can you help me find the solution t the equation
Step-by-step explanation:
Given
4(x + 7 ) = 38
4x + 28 = 38
4x = 38 - 28
4x = 10
x = 10 / 4
x = 5 / 2
Hope it will help :)❤
A taxi company charges passengers $1.75 for a ride, no matter how long the ride is, and an additional $0.40 for each mile traveled. The rule c = 0.40m + 1.75 describes the relationship between the number of miles m and the total cost of the ride c.
a. What is the charge for a 1-mile ride?
b. What is the charge for a 2.7-mile ride?
A. $0.40; $5.13
B. $1.75; $2.15
C. $0.40; $1.08
D. $2.15; $2.83
Answer: THE ANSWER IS D. $2.15; $2.83
a taxi company charges passengers 1.75 for a ride,?
a taxi company charges passengers 1.75 for a ride, no matter long the ride is, and an additonal $0.40 for each mile traveled. the rule c=0.40m+1.75 describes the relationship between the number of miles M and the total cost of the ride c.
what is the charge for 2.7 mile ride
A. 5.13
B. 1.08
C. 2.15
D. 2.83
Favorite Answer
D 2.83
c = 0.4. * 2.7 + 1.75
=> c = 2.83
Step-by-step explanation: It Looks Like The Answer is D
c=0.40(2.7)+1.75=$2.83 so $2.83 is the answer
1.75+(2.7*.4)=
1.75+1.08=
2.83
The answer is $2.83