Answer:
see below
Step-by-step explanation:
x^2 = 49
Take the square root of each side
sqrt(x^2) =± sqrt(49)
x = ±7
Suri failed to take into account the negative value of the square root
Convert 7.2 ⋅ 10^−3 to standard form.
Answer:
0.0072
Step-by-step explanation:
=7.2 × 10^-3
=7.2 × 10/10000
=7.2 ×1/1000
=0.0072
Answer:
0.00072
Step-by-step explanation:
Step 1: We know that we will have 3 zeros because of the exponent, and the exponent happens to be negative, so we will have the 3 zeros in after the decimal point (obviously), but before any numbers.
Step 2: We will then convert the 7.2 into 72, and it will also go after the decimal point. It will also go after the 3 zeros.
Step 3: Put it all together. The 0 (0), the decimal point (0.), the three zeros (0.000), and the 72 (0.00072). 0.00072 is your answer!
Please mark brainliest!
Will the reciprocal of 43 be greater than or less than one? The reciprocal will be
less
than one.
Find the reciprocal.
Are the ratios 7:21 and 3:8 equivalent? Explain how you know with supporting details. See notes for assistance
PLS HELP ME
Answer:
no
Step-by-step explanation:
7:21 7/21 = 1/3
3:8 3/8 = .375
Hello! Happy Tuesday! I have a math test today in 30 min and i'm studying. I know I will fail but I will try. I am really nervous, but know a lot of you guys have had quizzes and test that are really hard, and I want to know how to get rid of that nervousness. Thanks so much
A receptionist named Robert spends 2 minutes routing each incoming phone call. In all, how many phone calls does Robert have to route to spend a total of 46 minutes on the phone?
Answer:
He has to route 23 calls
Step-by-step explanation:
If he spends 2 mins in each phone call, and he'll spend 46 mins routing calls. Your answer is 23 sense 46 divided by 2 is 23
Robert have to route 23 phone calls to spend a total of 46 minutes on the phone.
What is time?" Time is defined as ongoing sequence of certain event during a fixed period."
According to the question,
Time taken by Robert for routing each incoming phone = 2minutes.
Number of phone calls Robert route in 1 minute = 1 / 2
Number of phone calls Robert route in 46 minutes = (1 / 2) × 46
= 23 phone calls
Hence, Robert have to route 23 phone calls to spend a total of 46 minutes on the phone.
Learn more about time here
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1 − 3(3 + 6b) = −6(3b + 1) − 2
will get brainliest!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
=infinite
Step-by-step explanation:
Find the value of r so that the line through (2,8) and (r,-4) has a slope of -3
Answer:
6
Step-by-step explanation:
The slope (m) is given by ...
m = (y2 -y1)/(x2 -x1)
Filling in the given values, we have an equation we can solve for r.
-3 = (-4 -8)/(r -2)
r -2 = -12/-3 . . . . . multiply by (r-2)/-3
r = 6 . . . . . . . . . . . add 2
The Geology Club of Gilroy Middle School took a field trip to Nisene Marks State Park to visit the epicenter of the 1989 earthquake. There were 3 adults for every 8 students on the field trip. A total of 44 people went on the field trip. How many adults were on the field trip?
Answer:
12 adults
Step-by-step explanation:
We can solve this in a couple of simple steps. First, since there are 3 adults for every 8 students we add these two numbers together
3+8 = 11
Now we simply divide this number by the total amount of people that went to the trip in order to get how many times this set of adults and students repeats itself.
44 / 11 = 4
Finally, we multiply this number by the set of 3 adults in order to find out how many adults went to the trip.
4 * 3 = 12 adults
8 * 3 = 32 Students
Select all that apply Zero is a(n)
Answer:
whole number and rational
Step-by-step explanation:
Factor the trinomial.
x^2-4x-5
We need to find two numbers that
Multiply to -5 (last term)Add to -4 (middle coefficient)Through trial and error, those two numbers are 1 and -5
1 times -5 = -51 plus -5 = -4So this means x^2-4x-5 factors to (x+1)(x-5)
This is the same as (x-5)(x+1) since the order of multiplication doesn't matter.
15 - 9 + 2.65 + 1.35 + 2(1.74)
A Galapagos tortoise can walk 1/5 mile in an hour. How many hours would it take the tortoise to walk 1/6 mile?
Answer:
0.834 hours
Step-by-step explanation:
Given that,
A Galapagos tortoise can walk 1/5 mile in an hour.
We need to find time would it take the tortoise to walk 1/6 mile.
1/5 mile = 1 hour
1 mile = [tex]\dfrac{1}{\dfrac{1}{5}}=5\ \text{hour}[/tex]
For 1/6 mile = [tex]\dfrac{1}{6}\times 5=0.834\ \text{hour}[/tex]
It will take 0.834 hours to walk 1/6 mile.
Answer: 1/6 divided by 1/5=5/6 of an hour
Step-by-step explanation:
Josh has $250 in the bank. He withdraws $130. He deposits $10. How much money does he have in his account?
Answer:
$130
Step-by-step explanation:
Since Josh withdraws, that means his account lost 130 so the first step is to subtract 250- 130 = 120, then he must deposit $10 which will add to the 120 in his bank account = 120+ 10 = 130
The answer will be 130
Suppose Q is the midpoint of PR. PR = 9x - 31 and QR = 43. Find X
Greetings from Brasil...
Since Q is the central point of PR, then PQ = QR and PQ = PR/2 or QR = PR/2
QR = PR/2
PR = 2 · QR
9X - 31 = 2 · 43
X = 13The value of x is 13.
What is a line segment ?A line segment is basically a line which has two end points.
A line has always a linear equation which has highest degree of 1
According the given question
Line segment is PR and midpoint is Q
Given QR = 43 which one end to the midpoint
∴ Total length of the line segment is 2×43
= 86
Given PR = 9x - 31 which is the total length of the line segment.
∴ 9x - 31 = 86
9x = 86 + 31
9x = 117
x = 117/9
x = 13.
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Solve for q.
9 + 3q = 4q
Answer:
q = 9
Step-by-step explanation:
9 + 3q = 4q
9 = 4q - 3q
9 = q
hope that helps :)
what is the measure of<6
Answer:
45 degrees [Verticallay opposite angles are equal]
Step-by-step explanation:
Carrie walks 525 feet from her house to jay's house. Then, she walks another 280 feet in the same direction to Asia's house. Which model correctly show x, the distance from carrie's house to Asia's house?
Answer:
The answer should be 525
A builder uses 32 wooden slats to make 4 fence panels. Fatima wants to know how many slats are needed for 1 panel. Gerard wants to know how many slats he will need to make 8 panels.
Fatima:How many slats in 1 panel?
Gerard: How many slats for 8 panels?
Answer:
Fatima: 8 wooden slats. Gerard: 64 wooden slats.
Step-by-step explanation:
For Fatima: You need to divide 32 by 4 to get 8 wooden slats because you need to find out how many slats are for 1 panel.
For Gerard: You need to multiply 32 by 2 to get 64 slats because if you know 32 slats make 4 fence panels, you need to multiply 4 by 2 to get 8, which is double the number, so you need to double 32 too.
Combine like terms and solve the equation
4(3x – 6) -7x = -80
it cost Hudson $28.20 to send 188 text messages. How much would it cost to send 63 text messages?
Answer:
The answer is 9.45
Step-by-step explanation:
The answer is 9.45 because 28.20 divided by 188 is 0.15 then if you multiply 0.15 by 63 you get 9.45
please help me explain how this is wrong
For the first number, 4.307,
your answer was four hundred thirty thousandths. This choice would indicate that the numbers 3 and 7 would be next to each other. However, we can see that there is a 0 in between, which makes it incorrect. Choice four would be the correct choice for this number. For proof, the last part of the equation says 7 x 1/1000. This is equal to 0.007, and 4.307 is the only possible choice that includes this value.
For the second number, 43.07,
your answer was the expression that I'm not even gonna bother typing lol. We see that the first part of the expression is 4 x 1. That equals 4, and that number, when added to the other values in the expression, is nowhere near 43, which makes the choice incorrect. The correct choice would be the expression in the left blue box on the bottom. For proof, the first part says 4 x 10, which is 40. 43.07 is the only number here that includes this value.
3n-(2 + n) plz this is a big grade
What is the angle of C (C)?
С
65°
65°
Answer:
50°
Step-by-step explanation:
The missing angle, <C, is an angle on a straight line with the two other angles who measures are 65% each.
Therefore:
65 + 65 + C = 180° (angles on a straight line)
130 + C = 180
Subtract 130 from both sides
130 + C - 130 = 180 - 130
C = 50°
15. Alex bought a 711 foot tree. When he got it home, he cut 1
1 2 3
feet off of it. How tall
the tree after
12
he cut it down?
Answer:
this other dudes answer don’t make any sense
HHEELLPP >>_<<
.........................................
Answer:
69 would be your answer
Step-by-step ex
Answer:
69
Step-by-step explanation:
b = 18
A(b) = 51+18
A(b) = 69
She earns $69 if she sells 18 books.
Which rational number is greater (-4 6/10) or (-4.65)?
Thank you to whoever answer
Answer:
[tex]-4\frac{6}{10}[/tex]
Step-by-step explanation:
What is closer to the zero(talking about negatives) is always going to be greater. What is farther from the zero is going to be less.
Answer:
-4 6/10
Step-by-step explanation:
The decimal equivalents of the two numbers are ...
-4.60, -4.65
The one farthest to the right on the number line is -4.60.
-4 6/10 is the greater
What is y
-7/2y-1=-11/4
Hurry!
steps pls!
Answer:
Y= -14/15 and in decimal form it’s y=-0.93
Step-by-step explanation:
Which is equivalent to "12 chairs for every 3 tables"?
A. 12 chairs per 3 tables
B. 3 chairs for every 12 tables
C. 12 chairs for each table
D. 3 tables per chair
Your answer is a, 2 chairs per 3 tables.
Notice you need 12 chairs for 3 tables.
D says 3 tables per chair, this cannot be the answer.
C says 12 chairs for each table, this cannot be the right answer neither.
B says 3 chairs for every 12 tables, this cannot be the answer.
A says 12 chair per 3 tables, this is the answer it is just worded differently.
If this helped may i have brainliest?
CAN SOMEONE HELP ME!?!?!? PLEASE ASAP!!!!!
Answer: sure what do you need help with?
Step-by-step explanation:
Jordan is saving for a new laptop that costs $325. He uses the equation and table below to show the number of months he has been saving, m, and the total amount he has saved so far, d. d=80+ 75m Amount Saved Over Several Months Months (m) Total Saved in Dollars (d) 0 1 Which is the first month in which Jordan will have saved enough money to buy the laptop? Month 2 O Month 3 O Month 4 month 5
Answer:
month 4
Step-by-step explanation:
I took the test
Answer:
Its month 4 on edge.
Step-by-step explanation:
