Find the number of real-number solutions of the equation below.
x2+7x−5=0
Answer:
12
Step-by-step explanation:
Answer:
x
=
−
7
−
√
69
2
,
−
7
+
√
69
2
Step-by-step explanation:
x
=
−
7
−
√
69
2
,
−
7
+
√
69
2
Leroy wants to buy a new racing bicycle that costs $168. To earn money, he can either do yardwork for his grandmother or babysit his brother and sister. He earns $24 for 3 hours of yardwork and he earns $48 for 4 hours of babysitting. How much longer will it take him to earn the money if he only does yardwork for his grandmother?
______ hours
PLEASE HELP DUE AT 11:59 PLEASE
Answer:
7 hours
Step-by-step explanation:
This is because 24/3=8
48/4=12
168/12=14
168/8=21
21-14=7
It take him 7 hours to earn the money if he only does yardwork for his grandmother.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.
Given that Leroy wants to buy a new racing bicycle that costs $168. He earns $24 for 3 hours of yardwork and he earns $48 for 4 hours of babysitting.
We need to find the time take to earn the money if he only does yardwork for his grandmother.
Thus, $24 for 3 hours of yardwork
24/3=8
Again, $48 for 4 hours of babysitting.
48/4=12
Now, 168/12=14
168/8=21
The time difference is;
21-14=7
Learn more about the unitary method, please visit the link given below;
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How do i get brainleset
Answer:
To get brainlieist you have to answer people's questions and if they think it was the best answer they will mark you ad brainlieist.
The perimeter of a triangle is 60 feet. Of the two unknown sides, the length is twice as long as the other. Find the lengths of the two unknown sides.
Answer: The length is 30, the 2 sides are 15.
Step-by-step explanation:
Lili runs a small day care business, caring for 3 children.
• She earns $150 during regular work hours.
• She charges $0.50 for each minute parents are late.
The situation is represented by the equation below, where t is the total
dollar amount Lili earns each day and m is the total number of minutes
parents are late.
t=150 +0.5m
Which of the following solutions shows an amount of money Lili can
reasonably expect to earn each day?
Answer:
$150
Step-by-step explanation:
[tex]t=150 + 0.5m\\t=150+0.5*0\\t=150[/tex]
This is as we don't know how often the parents are late, nor if they are late. So we assume that the parents are never late.
Solve
(Very easy 6th grade math)
Answer:
D
Step-by-step explanation:
Answer:
Number 3 because it is closet the 12.
Step-by-step explanation:
Are these congruent by SSS, SAS, AAS, ASA?
Answer:
SAS (Side Angle Side)
Step-by-step explanation:
It is SAS because both triangles are congruent due to 2 congruent sides and one congruent angle, thus being SAS.
Which is the graph of x298.6? ?
十十十十十十十一
95 6 97 98 9 100 101 102 103
0
十十十十十十十十
5 96 97 8 9 100 01 102 103
||||-+十十一
95 6 7 8 9 100 100 10 103
|||| + ++ +++
95 6 7 8 9 100 101 102 103
Answer:
A
Step-by-step explanation:
because I remember this question in the quiz I had a while ago
Answer:
The first one
Step-by-step explanation:
Bcs when u have a closed circle is when is less or equal to, and an open circle means greater/less to. And you have a closed bcs is less or equal to. So u look in the answers, you can already take two answers out which are the 2 and the 3 bcs they are open circle. Then x ≥ 98.6, then x is bigger than the 98.6 so the arrow would go to the right. And the answer would be first one
(How to do that in an easier way, Look at this ≥, the pointy side is aiming in the right so the arrow will go always to the right, THIS ONLY WORKS WHEN THE LETTER IS IN THE LEFT {EX. y ≤ 19, the arrow will be pointing in the left.)
PLS IF IT HELPED GIVE ME BRAINLIEST
HAVE A GOOD DAY
what is the absolute value of -2 and 2
Answer:
2
Step-by-step explanation:
since absolute value is the length that a number is away from 0, an absolute value can never be negative. 2 and -2 are both 2 spots away from 0.
3x-y=5
write each equation in slope-intercept form
Answer:
y = 3x - 5
Step-by-step explanation:
3x-y=5
-3x -3x
-y= -3x + 5
divide each number by -1
-y/-1 = y
-3x/-1 = 3x
5/-1 = -5
The equation 3x - y = 5 can be converted to slope-intercept form as follows: y = 3x - 5
Given is an equation 3x - y = 5, we need to convert it in slope-intercept form.
To convert the equation 3x - y = 5 into slope-intercept form (y = mx + b), where "m" represents the slope and "b" represents the y-intercept, we need to isolate the variable "y" on one side of the equation.
Let's rearrange the given equation step by step:
Starting with 3x - y = 5, we can begin by moving the term involving "x" to the other side:
3x - y + y = 5 + y
Simplifying:
3x = y + 5
Now, let's isolate "y" by subtracting "y" from both sides:
3x - y = y + 5 - y
Simplifying:
3x - y = 5
To eliminate the "y" term on the left side, we can add "y" to both sides:
3x - y + y = 5 + y
Simplifying:
3x = 5 + y
Next, let's rearrange the equation to have "y" on the right side:
3x = y + 5
We can write this equation as:
y = 3x - 5
Now the equation is in slope-intercept form (y = mx + b), where the slope "m" is 3, and the y-intercept "b" is -5.
Learn more about slope-intercept form click;
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The
is used to measure volume,
gram
meter
ter
Answer:
what?
Step-by-step explanation:
Answer:
graduated cylinder
Step-by-step explanation:
lol this coulda been a science question but its okay XD
HELP ME FOR BRANLIEST
Answer: i dont know the answer but can i please have brainliest, i wanna know what it looks like and what it does
Step-by-step explanation:
Sharon went bowling with her friends. She paid $3 to rent her shoes and then $3.75 for each game of bowling. She spent a total of $18. How many games did she bowl?
the answer is $24.75
Step-by-step explanation:
u will add all all what she spent
Luis rides his bicycle 3/4 mile in 15 minutes, or 1/4 hour, along the bike trail. Assuming he rides at a constant rate, what is his speed, in miles per hour?
Answer: 3
This is because 15 times 4 equals 60 and that is equal to 1 hour, well when your multiplying fractions what you do to the bottom you have to do to the top so multiply 3 times 4 thats 12 and now you have 12/4 and that is equal to 3.
i will give brainliest!!! pls help
Answer:
Yes, it is a function
Step-by-step explanation:
It is a function because every input only has one output.
The domain is -2, -1, 0, 1, and 2.
The range is 0, 1 ,4
Mohammed built a building that can carry up to 5 tons. If each person weighs about 150 pounds, how many people can fit onto the building that Mohammed built?
Answer:
Step-by-step explanation:
To start solving this problem, you need to figure out how many Pounds( I'll use lbs.) = 5 Tons( I'll use T).
2,000 lbs. = 1 T.
X 5 X 5
10,000 lbs. = 5 T.
Now we divide. That just means that if we know that 1 person( I'll use P) = 150, we just divide 5 T( 10,000 lbs.) by 150 lbs.
10,000/150=66.6666666667
hope this helps!!
Triangle A B C. Angle B is 60.8 degrees and angle C is 57.1 degrees. Triangle X Y Z. Angle Z is 60.8 degrees and angle Y is 59.1 degrees.
Answer the questions about these triangles.
Which is the measure of angle A?
Which angle corresponds to angle A?
What can be concluded about these triangles?
Answer:
62.1
angle Y
the triangles are not similar
Step-by-step explanation:
Answer:
Which is the measure of angle A?
✔ 62.1 degrees
Which angle corresponds to angle A?
✔ angle Y
What can be concluded about these triangles?
✔ The triangles are not similar.
Step-by-step explanation:
Hi I need this for Geometry im also posting more questions to this same triangle on my account if you don't mind answering them. Thank you! It would really help since I'm not doing well in this class!
Answer:
a reflection across line bc
Step-by-step explanation:
maybe, I think so
PLEASE HELP ME! THANK YOUU!
Answer:
-7+1x (ignore this I needed more characters)
Determine if the Sequence is Arithmetic. 1,3,9,27,81,...
A) Arithmetic
B) Not Arithmetic
Answer:
Arithmetic
Step-by-step explanation:
Each number is multiplied by three
Answer:
No, this isn't an Arithmetic Sequence
Step-by-step explanation:
An Arithmetic Sequence should have a constant. There are several differences in the Sequence, but no constant difference.
Hope this helped! If you have any questions, dm me on insta
celinesaydawi
I need help with number 5 please
Henry can write 5 pages of his novel in 3 hours
How many pages can Henry write in 8
hours
Answer:
13 1/3
Step-by-step explanation:
Chanelle deposits $7500 into the bank. She does not withdraw or deposit money for 6 years. She
earns 6% interest during that time.
a) How much interest will she have earned at the end of 6 years?
b) What will the balance be when she is finally able to withdraw the money?
Answer:
A: she will earn 450$ interest
B:the balance will be 7950$
hope that helps
Step-by-step explanation:
Fine the values of x and y
Answer:
x=5 and y=1
Step-by-step explanation:
15. Marcus wants to carpet the floor of his bedroom. If the carpet costs $23.99 per square meter, how much will he pay?
Need this answer nowwwwwwwww
Find the slope of (-1,3) and (2,5)
Answer:
slope should be 3
Step-by-step explanation:
i used my calculator
Nate has an account that pays 2.76% simple interest per year and wants to accumulate $3,090 in interest from it over the next 15 years. How much money should Nate invest in this account to meet this goal?
a
$4,369.26
b
$4,373.77
c
$1,279.26
d
$7,463.77
Answer:
To achieve this goal, he must invest $7,463.77 ( d)
Step-by-step explanation:
mathematically;
simple interest = PRT/100
I = 3,090
P = ?
R = 2.76%
T = 15 years
3,090 = P * 2.76 * 15/100
100 * 3090 = 41.4 P
P = 309000/41.4
P = 7,463.77
Which of the following are NOT discrete data?
1) Number of eggs laid daily by the chickens on a farm.
2) Number of actors in a
Hollywood film.
3) Acceleration of an aeroplane on take-off.
4) Shoe size
The ticket sales for a concert started at 4:00P.M. The table shows
the linear relationship between the number of tickets remaining
and the number of hours since 4:00 P.M.
Ticket Sales
Hours Since
4P.M.
1
2
Number of
Tickets Remaining
12,000
9,000
6,000
3,000
0
3
4
5
Which function can be used to find y, the number of tickets
remaining x hours since 4:00 P.M.?
A y = 3,000x + 12,000
B y = 3,000x + 15,000
C y = -3,000x + 12,000
D y-3,000x + 15,000
AnswerA
Step-by-step explanation:I’m not sure
What do I put in blanks explain your answer giving brainiest
Answer:
positve and negative i think
Step-by-step explanation:
Answer:
Positive
And Negative for the second one
Step-by-step explanation:
