What are the solutions to (x+7)2 = 81?
A. -74 and 88
B. -2 and 16
C. -88 and 74
D. -16 and 2
Answers
Answer:
D
Step-by-step explanation:
x+7 =√81: x=s
x+7=-√81: x=-16
Related Questions
owrite down the name of each of these triangles
Answers
Answer:
sry I don't know.
if someone answer tell me the answer I also want to know : )
Acellus
Find the standard deviation of
the given data rounded to the
nearest hundredth.
3,4,5,7,10,12,15
Answers
Answer:
17.4
Step-by-step explanation:
3 + 4 + 5 + 7 + 10 + 12 + 15)/7 = 8
(3^2 + 4^2 + 5^2 + 7^2 + 10^2 + 12^2 + 15^2)/7 - 8^2 = 17.14285714
17.14285714 = 17.4
Which set of angle measures could be measures of the interior angle of a triangle?
Answers
Answer:
b
Step-by-step explanation:
23-105-45
Answer: 60°, 60°, and 60° is the set of interior angles of triangle.
Carol decorated a cylinder by placing a 3 inch wide striped ribbon around its curved surface the cylinder has a radius of 3 in and a height of 3 in
Answers
Answer:
28.26
Step-by-step explanation:
radius-3
height-3
pi-3.14
Solve for x: -8 < x - 1 < 5
Answers
Answer: −7<x<6
Step-by-step explanation:
−8<x−1<5
−8+1<x−1+1<5+1(Add 1 to all parts)
−7<x<6
What is the value of (x^3 − 7x^2 − 18x + 42) when x = 3?
Answers
Answer:
-150
Step-by-step explanation:
x^2 - 7x^2 - 18x +42
3^2 - 7(3)^2 - 18(3) + 42
9 - 63 - 54 + 42
-54 -54 + 42
-108 + 42
-150
I am not sure how to solve this could anyone help???
Answers
Answer:
about 137 degrees
Step-by-step explanation:
see attached picture
I dont know how to do surface area
Answers
Answer: the equation for SU is 2(lb+bh+hl)
Step-by-step explanation: L stands for length B stands for base. H stand for height multiply that by 2
5-x=3
Work out the value of x
Answers
Answer:
x = 2
Step-by-step explanation:
5 - x = 3
- x = 3 - 5
- x = - 2
x = 2
-5 -5
-x=-2
- -
X=2
Answer is x=2
39 - 15x if x = 2
Evaluate
HELP PLEASE!!
Answers
39 - 15x
15 x 2 = 30
39 - 30 = 9
Find the area of the shaded figure. 1 unit 1 unit
Answers
Answer:
area of shaded region =total area - outer shaded area
Answer:
udvugeciiffhi3fo
Step-by-step explanation:
bc whcehfiwhidheihgeigdi2iwg
The bus driver has driven 49 miles this morning. His route is 123 miles. How much further must he drive to finish his route
Answers
Answer:
74 miles
Step-by-step explanation:
Answer:
74 miles
Step-by-step explanation:
123-49=74
What is (7-2)^2+3/ 1/6
( / ) this means divide and (^) that means to the power
Answers
43
Explanation:
To start off you always handle the whatever's in your parentheses. 7-2 is 5.
Now your equation should look like this-
(5)^2 +3/1/6
5 to the power of 2 is 25 (5 times 5)
so now instead of 5 you have 25:
25 +3/1/6
To divide fractions you first have to make 3 and fraction so just put a one below it so it's still it's full value: 3/1
When dividing fractions you actually end up multiplying, you keep the first fraction the same (3/1) and you flip the second one (1/6 which is now 6/1) and then you multiply.
3/1 * 6/1 equals 18/1 which actually just equals 18 and then you get 25 + 18 from the parentheses and that equals 43 :)
Hope this helped! i'm horrible at explaining but i tried!
Answer:
ewannnnnnnnnnnnnn
Step-by-step explanation:
d q den alam d pa namin pinagaaralan yan, xenxia na godbless
Estimate the following product using a power of ten
Answers
Step-by-step explanation:
43.27×9.1=
393.757
Estimate. 400
10×10=100×10=1000
This is wrong because the estimated number is oy 400.
So, 10×10=100
The answer is 10^2.
Which figure could be the result of dilating this rectangle with a scale factor between 0 and 1?
Answers
Answer:
When we dilate a figure with a scale factor between 0 and 1, the size of the figure shrinks but maintains the same orientation as the original figure. Therefore the correct option is B.
Bob and Larry went on a tricycle ride. They rode for the same amount of time, but Bob cycled 10 miles per hour slower than Larry. If Bob cycled 14 miles and Larry cycled 21 miles, find the speed that both Larry and Bod rode their tricycles.
Answers
Step-by-step explanation:
so basically they are asking you to subtract, hope this helps, use a calculator if needed
Which point(s) on the diagram show(s) the solution(s) to the equation x = x2 - 2x - 8?
solution 1
solution 2
Answers
Answer:here is the answer on yt
Step-by-step explanation:
https://youtu.be/dQw4w9WgXcQ
HELP!
Write two mixed numbers so that all rules are applied:
1. One number is larger than the other by 4 2/3
2. The difference of the numbers is equal to the smaller number.
3. The sum of the numbers is natural number
Answers
Answer:
Step-by-step explanation:
“One number is larger than the other by 4 2/3”
x = y + 4⅔
“The difference of the numbers is equal to the smaller number.”
x-y = y
x = 2y
y + 4⅔ = 2y
y = 4⅔
x = 2y = 9⅓
“The sum of the numbers is natural number”
x+y ∈ ℕ
9⅓ + 4⅔ = 14 ∈ ℕ
Answer:
9 1/3 and 4 2/3
Step-by-step explanation:
:)
The ratio of pennies : nickels is proportional to the ratio of nickels : dimes,
and to the ratio of dimes : quarters. If you have one penny and two nickels,
how much money do you have?
Answers
which is greater 1/4 or 0.75
Answers
Answer:
0.75 is greater
Step-by-step explanation:
1/4=0,25 and 0.75 is greater than 0,25
1/4 = 0.25
3/4 = 0.75
0.75 is greater than 1/4
I need help on this for real
Answers
Answer:
x < 3
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
Gang ima just take them points tbh
Step-by-step explanation:
What is the slope of a line that passes through (-4, 8) and (3, -6)?
a.1/2
b.-2
c.-1/2
d.2
Answers
[tex]m=\frac{8-(-6)}{-4-3}=\frac{14}{-7}=-2[/tex] so B.
Hope this helps.
Everyone thought that Martha Mathy was trying to start a new fashion trend when she started wearing socks that did not match. her "look" started to catch on, and pretty soon all the kids at her school were wearing mixed-up socks, too. Rita Writer, a reporter for the school paper, interviewed Martha about the new sock trend. " Wat gave you the idea to wear mismatched socks?" Rita Asked.
"Its simple mathematics," Martha replied. "you see, I have 18 socks at home but no two are the same. with just these 18 socks, I can create over 100 unique pairs of mismatched socks." Rita found this hard to believe, so she checked it out. Was Martha correct?
Answers
Answer:
There are 153 combinations
Combinations - any two from eighteen is given by the formula 18C2 or 18! / (2!*16!)
= 18 * 17 / 2 = 153
OK that is the maths - now the explanation
The first sock can be any of 18
The second sock can be any of 17 (one already been selected and they must be mismatched)
Therefore there are 18*17 = 306 permutations she could make
However the question asks for "combinations" not "permutations"
A green sock on the right foot and a yellow sock on the left foot is deemed to be a different "permutation" to a yellow sock on the right foot and a green sock on the left foot. HOWEVER, they are regarded as the same "combination" in both cases you have one green and one yellow sock.
Therefore for combinations we must divide the 306 permutations calculated above by 2 = 153
FYI Walton has incorrectly given you the value of 18!. That would only apply if Martha Mathy had 18 feet!
HELP PLS PLS PLSBPLSBPLS PLS
Answers
Answer:
a and c are correct
b and are wrong
bc length=ab length=4 squres
so triangle is isosceles.a is correct
abc angle is right angle.so c is correct
triangle has only one line of symmetry.that will be the line joining b and the mid point of ac
ac side is bigger than other two sides.so d is incorrect
b- i’m not sure sorry, i think false
c- True
d- True
which shows 2÷3 written as a fraction? (options) a. 2/3 b. 3 1/2 c. 3/2 d. 2 1/3
Answers
Answer:
A. 2/3
Step-by-step explanation:
Fraction is another way to divide , So in some math problems they want you to either flip the fraction or divide the numbers .
Option A is correct, the expression 2÷3 written as a fraction is 2/3.
What is Fraction?A fraction represents a part of a whole.
We have to write 2÷3 as a fraction.
Two divided by three.
We have to split the number two by three parts.
We know that any division expression can be written as a fraction, the numerator is a part and denominator is a whole.
Two is the numerator and three is the denominator.
The numerator represents the part and three represents the whole.
This we can write in fraction as 2/3.
Two by three is the fraction form of two divided by three.
Where as [tex]3\frac{1}{2}[/tex], is not a fraction, it is a mixed number.
3/2, is not equivalent to 2 ÷ 3, it represents the fraction one and a half and [tex]2\frac{1}{3}[/tex] is not equivalent to 2 ÷ 3, it represents the mixed number two and one-third.
Hence, Option A is correct, the expression 2÷3 written as a fraction is 2/3.
To learn more on Fractions click:
https://brainly.com/question/10354322
#SPJ2
Roshanna Lincoln's landscaping company ships its packages through Fleet Quick Delivery. Fleet charges $4 plus $0.60 per pound to ship each package. If the charge for shipping a package to Nevada was $15.40, how much did the package weigh math
Answers
Answer:
The package weighs 21.6 pounds
Step-by-step explanation:
$4 dollars + T(0.60 tax per pound) divided by 15.40( the full cost of the shipment)
15.40 divided by 0.60 = 25.6
25.6 - 4 = 21.6
-------------------------------
Answer: 21.6 Pounds
-------------------------------
I hope I helped :)
Would appreciate Brainliest ;)
1 Which is the simplified form of the expression (1021495* (104)05) ?? 1 30 O O g30 012 060 O p12,60
Answers
Answer:
7
Step-by-step explanation:
I need this please help me
Answers
Nope this helps
Make sure to like!
5.175 into a fraction
Answers
Find the total of a
$60 meal with 15%
tip and 8% tax.
Answers
Answer: $73.8 15% of 60 is 9 and 8% of 60 is4.8 then if you add them all together you get 73.8$
Step-by-step explanation:
Answer:
$73.8
Step-by-step explanation:
(15+8)= 23 -> .23 = .23 times 60 = $73.8