Answers
Answer:
D
Step-by-step explanation:
use math wwwway , it gives ypu the answer and explenation
Related Questions
What is a quadratic function that has zeros of x=-1 and x=-2?
Write in factored form.
Answers
Answer:
f(x) = (x + 1)(x + 2)
Step-by-step explanation:
Zero x = -1 corresponds to factor x + 1, and zero x = -2 to x + 2. Thus, the quadratic in question is
f(x) = (x + 1)(x + 2)
Write the equation of the line that passes through the points (-7, -4) and (-8,2).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.
Answers
Y = -6x-46 is the answer.
Dan and Lisa each improved their yards by planting daylilies and ivies. They bought their supplies from the same store. Dan spent $78 on 6 daylilies and 8 pots of ivies. Lisa spent $123 on 9 daylilies and 13 pots of ivies. What is the cost of one daylily? What is the cost of one pot of ivies?
Answers
Answer:
Cost of daylillies = $5
Cost of pot = $6
Step-by-step explanation:
Let
Cost of daylillies = x
Cost of pot = y
6x + 8y = 78 (1)
9x + 13y = 123 (2)
Multiply (1) by 9 and (2) by 6 to eliminate x
54x + 72y = 702 (3)
54x + 78y = 738 (4)
Subtract (3) from (4)
78y - 72y = 738 - 702
6y = 36
y = 36/6
y = 6
Substitute y = 6 into (1)
6x + 8y = 78 (1)
6x + 8(6) = 78
6x + 48 = 78
6x = 78 - 48
6x = 30
x = 30/6
x = 5
Cost of daylillies = $5
Cost of pot = $6
In a school of 310 students, 70 of them are in the drama club, 190 of them are in a sports team and 50 students do drama and sports. Find the probability that a student chosen at random isnt in the in tje drama club or the sports team
Answers
The probability that a student chosen at random isn't in the drama club or the sports team is 10/31.
What is the probability?Probability refers to a possibility that deals with the occurrence of random events.
The probability of all the events occurring need to be 1.
P(E) = Number of favorable outcomes / total number of outcomes
Let's denote students in D = in the drama club , S = in a sports team
P(D) = 70/310
P(S) = 190/310
P(D and S) = 50/310
P(D or S) = P(D) + P(S) - P(D and S)
P(D or S) = 70/310 + 190/310 - 50/310
P(D or S) = 210/310 = 21/31
P(neither D nor S) = 1- 21/31
P(neither D nor S) = 10/31
The probability that a student chosen at random isn't in the drama club or the sports team is 10/31.
Learn more about probability here;
https://brainly.com/question/11234923
#SPJ1
please help i don’t understand
Answers
Step-by-step explanation:
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Jasmine invests 2658 in a retirement account with a fixed annual interest rate of 9% compounded annually what will the account balance be after 4 years
Answers
= 2897.22$
Since it is compounded every year, you redo the same operation but on the new higher sum you just got.
In total, after 4 years you will have 3751,98$
select all of the expressions that are equivalent to 4(5) + 3 (5).
Answers
Answer:
1,4,
Step-by-step explanation:
i know
20 + 15
35
ANSWER:
7(5)
Combine the like terms for the following expressions -3+4b-6g+5-7b
Answers
Answer:
-3b-6g+2
Step-by-step explanation:
Work out the value of x
2x + 13
x-4
x+7
(Look at the photo attached)
Answers
Answer:
x = 41
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 given angles and equate to 180
2x + 13 + x - 4 + x + 7 = 180, that is
4x + 16 = 180 ( subtract 16 from both sides )
4x = 164 ( divide both sides by 4 )
x = 41
Answer:
x=41
Step-by-step explanation:
we know that all the angles need to add up to 180
The angle on top is almost a right angle(90) but is not exactly
playing with the numbers will help
95-13=82/2=41
lets continue with this and see if it works out
41+7=48
41-4=37
48+95+37=180
hope this helps!
2(6+2x-1) pleas help fast
Answers
Answer:
4x+10
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
2(6+2x-1) = 8. Mark me Brainliest.
4x + 4y = 20
2x - 2y = 2 .
Answers
Answer: Can you tell me how do you want it answered?
Step-by-step explanation:
Someone help and plz make sure it’s right
Answers
your friends show you a coin collection .in it 45/50 of the coins are quarters.what percent of the coins are quarter
Answers
Answer:
90%
Step-by-step explanation:
45 : 50
45 / 50 = 0.9
0.9 x 100 = 90
Answer: 20%
Step-by-step explanation: i learned this in mexico class
A flat bridge is created using support beams extending from an arch below the bridge. The table shows the lengths,
y
, in meters, of support beams for the bridge
x
meters from the start of the bridge.
Answers
Answer:
I don't know Sorry which classAnswer:A,B,D
Step-by-step explanation:
1. Find the volume of each cylinder ( use = 3.14 )
Answers
Answer:
1. volume = 1243.44ft^3
2. volume = 54259.2ft^3
Mark think of a number mark doubles it and add 2.9 to get answer of 30.6 form an equation with x from the information
Answers
Answer:
2x + 2.9 = 30.6
Step-by-step explanation:
We are to represent the unknown number that Mark thinks of with x
If Mark doubles this unknown number, he multiplies it by 2 and the unknown number becomes - 2x
He then adds 2.9
The equation becomes 2x + 2.9
The answer of the above equation is 30.6
This gives : 2x + 2.9 = 30.6
What is the range of the function fx) = -2(6x) + 3?
(-∞,-2]
(-∞,3)
[-2,∞)
[3,∞)
Answers
Gary sold souvenirs at a fair for four days. He made this table to show how much of his total merchandise he sold each day. What percent of Gary’s merchandise had he NOT sold after all four days?
Answers
Answer:
Step-by-step explanation:
Someone answer this question please I need help to!
please help i dont understand
Answers
Given:
Number of spheres = 2
Number of prisms = 3
Number of pyramids = 5
To find:
The probability that a pyramid will be selected.
Solution:
We have,
Favorable outcomes = Number of pyramids
= 5
Total outcomes = Total number of figures
= [tex]2+3+5[/tex]
= [tex]10[/tex]
Now, the required probability is:
[tex]\text{Probability}=\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}[/tex]
[tex]\text{Probability}=\dfrac{5}{10}[/tex]
[tex]\text{Probability}=0.5[/tex]
Therefore, the probability that a pyramid will be selected is 0.5.
Find the factors of 9q²-45pq+8q-40p
Answers
Answer:
(x−5y)(9x+8)
Step-by-step explanation:
9x^2−45yx+8x−40y
Do the grouping 9x^2−45yx+8x−40y=(9x^2−45yx)+(8x−40y), and factor out 9x in the first and 8 in the second group.
9x(x−5y)+8(x−5y)
Factor out common term x−5y by using distributive property.
(x−5y)(9x+8)
1. What is the product of 1/2x - 1/4 and 5x^2+6
show your work
Answers
Answer:
Step-by-step explanation:
First you would make the equation
(1/2x - 1/4)(5x^2 + 6)
afterwards you would multiply like normal binomials\
5/2x^3 + 3x - 5/4x^2 - 6/4
Then simplify
5/2x^3 - 5/4x^2 + 3x - 3/2
Remember to put them in order from the most roots to the least.
I need help ASAP!!!!!!!!!!!!!!!!!!!
Answers
Answer: Length of each side of the building block will be 1 feet.
Answer:
23/45
Step-by-step explanation:
all expressions equivalent to 3.1y+ (y+10) + 4.2y
Answers
Answer:
8.3y + 10
Step-by-step explanation:
The cost of 3 quarts of milk is $6.75. How many quarts can you buy with $20.25?
Answers
Explanation: 20.25/6.75 = 3 x 3 = 9
The graphs of f(x) and g(x) are shown below.
For what interval is the value of (f - g)(x) negative?
O (-*infinity sign*,-1)
O (-*infinity sign*, 2)
O (0, 3)
O (2, *infinity sign*)
Answers
Answer:
The second one
Step-by-step explanation:
a full glass of water can hold 1/6 of a bottle how many of glasses can be filled with 3 1/2 of bottles of water
Answers
Answer:
21 glasses can be filled
What is 20% of 900 ?
Answers
Answer:
180
Step-by-step explanation:
900/ 10= 90x 2= 180
haha very bad explaination but hope it helps <3
Answer:
180
Step-by-step explanation:
First let's write the problem out.
20% of 900 = 20%*900
20% can also be written out as .2
now all you need do is multiply .2 by 900
This should get you 180
Hey guys I need ur help with math.
Please help
Answers
marilyns teacher slowed her to take a makeup test she scored 24/60 on the original test and 28/40 on the makeup test by what percentage did marilyn improve her score
Answers
Second test: 28/40 = 0.7 = 70%
So you could say 30% improvement, but if the way it’s worded makes me wonder if they want to know what percentage of 40 is 70.
0.4x = 0.7
0.7/0.4 = x
x = 1.75 = 175%
Which one sounds more like what you’re learning in class right now? That’s the answer I would go with.
What is the length of the missing leg?