Answer:
y^2-1=80
y^2=81
y = positive and negative 9
y2−1=80
Step 1: Add 1 to both sides.
y2−1+1=80+1
y2=81
Step 2: Take square root.
y=±√81
y=9 or y=−9
Answer:
y=9 or y=−9
the solution of the equation 5−2x=−4x−7 is
A. 1
B. 2
C. -2
D. 6
Answer:
None of the options.
Step-by-step explanation:
The solution to that equation is -6, which is not any of those choices.
Answer:
x - 6
Step-by-step explanation:
(It's none of the above)
5 - 2x = -4x - 7
5 + 2x = -7
2x = -12
x = -6
What is the Mean Absolute Deviation of the data set below? 12, 1, 6, 10, 1, 2, 3, 10, 3, 8, 3, 9, 8, 6, 8
Answer:
Mean Absolute Deviation (MAD): 3.0666666666667
Step-by-step explanation:
how do i convert 8/10 to a percentage?
(if yall can get the answer ill give brainlieast)
Answer:
80%
Step-by-step explanation:
Divide 8 by 10, and multiply your answer by 100
Answer:
80%
Step-by-step explanation:
Multiply by 100
8/10 = 0.8
0.8 x 100= 80
What is 8.45 rounded to the nearest tenth?
8.0
8.4
8.5
9.5
Answer:
8.5
Step-by-step explanation:
Deborah bought a computer for 25% off the list price.
Deborah bought a computer for 25% off the list price.
Answer:
how much was the computer or smth i need more information
Step-by-step explanation:
See image for details on question
Answer:
x +3
Step-by-step explanation:
You can solve this by factoring.
The numbers have to add to 10 and multiply to 21.
The first numbers that should come to mind are 7 and 3
(x+3)(x+7)
x+3 is the shorter side and there you go :)
x/3=3 use the division property of equality, please explain
[tex] \frac{x}{3} = 3 \\ \\ x = 3 \times 3 \\ \\ x = 9[/tex]
What is the output of this function when the input is 5?
Answer:
-1
Step-by-step explanation:
look at the graph, and find where x=5
where x=5, y=-1
Answer: 1
Step-by-step explanation:
just trust me bro i’m jp i got it right
A necklace requires 25 beads to be completed.If kaylin has 7550 beads and each necklace cost $5 how much money will kaylin make?
Answer:
it is 1510 according to me and the calculator
Answer:
Kaylin can make $1510
Step-by-step explanation:
7550 beads ÷ 25 beads per necklace = 302 necklace in total
( or [tex]\frac{7550}{25} = 302[/tex] )
302 necklaces × $5 each = $1510 total
What is the sum of the degrees from a diagram with 5 vertices?
It is not 540
Answer:
The number of edges connected to a single vertex v is the degree of v. Thus, the sum of all the degrees of vertices in the graph equals the total number of incident pairs (v, e) we wanted to count.
HOPE THIS HELPS
A rectangle is 10 feet longer than it is wide. The area is 39 square feet. Find the dimensions of the rectangle
Answer:
length = 13 ft
Width = 3 ft
Step-by-step explanation:
Width = w ft
Length = ( w +10 ) ft
Area = 39 square ft
length * width = 39
(w +10)* w = 39
w *w + 10*w = 39
w² + 10w - 39 = 0
w² + 13w - 3w - 3*13 = 0
w(w + 13) - 3(w + 13) = 0
(w + 13) (w - 3) = 0 {Ignore w + 13 , as measurement cannot be in negative}
w - 3 = 0
w = 3
length = 3 +10 = 13 ft
15 NEED HELP ASAP WILL GIVE BRAINLY
Answer:
The first answer is correct because the angle it gives you in the 3rd picture at the bottom left is congruent with X, therefore makeing the X 100.
Step-by-step explanation:
find the solution for 6x+3y=3 3x-y=4
im confused abt the answer above mine
Answer:
your welcome for the answer
Step-by-step explanation:
Can somebody help me. Will Mark brainliest.
Answer:
Step-by-step explanation:
cos(x) = 21/38
x = arccos(21/38) ≅ 56°
Daniella collected 4242 bushels of peas from her garden today. Tomorrow she will send \frac{3}{7} 7 3 of the peas to market. How many bushels will she KEEP?
Answer: 24
Step-by-step explanation:
Amount of bushels of peas collected = 42
Fraction that'll be sent to market = 3/7
Fraction that'll be kept = 1 - 3/7 = 7/7 - 3/7 = 4/7
The number of bushels that'll be kept will be:
= Fraction that'll be kept × Total number of bushels collected
= 4/7 × 42
= 24
Mackayla withdrew a total of $100 from her bank
account over 4 days. She withdrew the same amount
each day. By how much did the amount in her bank
account change each day? What operation can you
use to solve this problem?
Answer:
Step-by-step explanation:
Use division. It was the same amount each day.
100 dollars over 4 days.
100 / 4 = 25
Each day her bank account decreased by 25 dollars.
What is the length of the hypotenuse of a right triangle with legs of 50 ft. and 120 ft. ?
If needed, round your answer to the nearest tenths place (one decimal place).
Question 9
10 pts
Answer: 130 ft
Step-by-step explanation:
a^2 + b^2 = c^2
Where a and b are the legs that form the right angle and c is the hypotenuse (the side directly opposite of the right angle)
50^2 + 120^2 = c ^2
2,500 + 14,400 = c^2
16,900 = c^2
Take the square root of 16,900 to get c.
C = 130
Hypotenuse length is 130
HELP ASAP!! Question in pic!! Will give brainliest!!!!!
Answer:
y= -1/4x - 6
Step-by-step explanation:
So the point slop form is y = mx + b, where m is the slope : -1/4, and b is the y-intercept (which we don't know yet).
To find b, all you need to do is plug in -1/4 for m and the point (4, -7) for x and y respectively, giving you:
-7 = (-1/4)(4) + b
Then do some algebra shenanigans: multiply -1/4 by 4 to get -1
-7 = -1 + b
then add the 1 to both sides.
b = -6
Then, you can plug the b and the m back into the problem to give you:
y = -1/4x - 6
Answer:
C
Step-by-step explanation:
Point slope form looks like this: [tex]y-y_1=m(x-x_1)[/tex]
We already have our slope (-1/4)
Our [tex]y_1[/tex] is -7 and our [tex]x_1[/tex] is 4
In this case, our equation would be [tex]y-(-7)=-1/4(x-4)[/tex] and the -(-7) would turn into +7
Therefore, the answer is C
Can I get help with this, please
Answer:
For F(x)=10x the chart should go,
(-2, 1/100)
(-1, 1/10)
(0, 1)
(1, 10)
(2, 100)
For F(x)=6x the chart should go,
(-2, 1/36)
(-1, 1/6)
(0, 1)
(1, 6)
(2, 36)
If this helped please give brainliest :)
Please helpppp
Help
Answer:
( -2 , 4 ) --- ( -2 , 1 ) ------ ( -4 , 1 )
Step-by-step explanation:
Answer:
(-2,1) (-2,4) (-4,1)
Step-by-step explanation:
Possibly one of the easiest ways to figure this out is to take on of the points and count how many points go back to the y axis, in this case it goes back 2. Since its goes back two, on the other side we also need to go back two. Do this with all of the points. If you still don;t understand please don't hesitate to ask.
PLEASE HELP
What is the circumference of a circle?
What percent of the symbols are $?
$ *
* $ $
*
*
* *
*
$ $ $ $
Plzzzzz help
Last year at RT University, the ratio of the number of
students accepted to the number of students applying
for admission was 2 to 7. RT University accepted
630 students last year. How many students applied to
RT University last year?
A. 810
B. 1,260
C. 2,205
D. 2,835
E. 4,410
Angle C and angle D are complementary. The measure of angle C is (2x)° and the measure of angle D is (3x)°. Determine the measure of the two angles.
Answer:
c=36 degrees
d=54 degrees
The present age of the father and his son is 32 years and 7 years respectively.
7
Find how many years ago the product of their age was 116.
product of the present age of their
Answer:
ok so im so confused but like you know i tried and i got this:
X years ago, the father’s age and the son’s age would be (32 - x) and (7 - x) years old.
(32 - x)(7 - x) = 116
(x - 32)(x - 7) = 116
x^2 - 39x + 224 = 116
x^2 - 39x + 108 = 0
(x - 3)(x - 36) = 0
x = 3, 36
But (32 - x) > 0, so x does not equal to 36.
x = 3
3 years ago, the father would be 29 years old, and the son 4 years old.
i know it sounds crazy but i think its wrong lol
If we have a conversion factor given to us in a fraction form that cannot be represented as an easy decimal, what can we do?
a. Conclude that the units cannot be converted to one another.
b. Assume the conversion factor is 1.
c. Attempt to use a conversion factor for different units of measurement.
d. Leave the conversion factor in fraction form.
Answer:
D) Leave the conversion factor in fraction form
Step-by-step explanation:
Leave the conversion factor in fraction form, when fraction form that cannot be represented as an easy decimal. The correct option is option D.
What is conversion Factor?A conversion factor is a ratio expressed as a fraction that equals 1. When we use conversion factors to convert units, we multiply our original measurement by the conversion factor to get the same measurements expressed in new units.
If we have a conversion factor given to us in a fraction form that cannot be represented as an easy decimal. Leave the conversion factor in fraction form.
Because there are two type of decimals:
Terminating decimal expansion means the decimal expansion of a number which stops after a certain number of decimal places. For example, if we divide 100 by 16, the answer comes out as 6.25.Since the number of decimal place in 6.25 is 2,i.e., it stops after a certain number of decimal places, it is called a terminating decimal expansion.
On the other hand, if the decimal expansion of a number does not stop at all, then it is called a non-terminating decimal expansion. For example, if we divide 100 by 7, then the answer comes out to be 14.28571428571…….. . The decimal expansion does not stop. This is known as a non-terminating decimal expansion.
In general, if a fraction has a denominator of the form 2^n*5^m, where m and n are non-negative integers, then it will have a terminating decimal expansion. For example, 100/16 has denominator 16 which is of the form 2^4*5^0, so it has a terminating decimal expansion.
If a fraction has a denominator which is not of the form 2^n*5^m, where m and n are non-negative integers, then it will have a non-terminating decimal expansion. For example, 100/7 has a denominator 7 which is not of the form 2^n*5^m so it has a non-terminating decimal expansion.
Hence, Leave the conversion factor in fraction form, when fraction form that cannot be represented as an easy decimal.
Learn more about Fractions:
https://brainly.com/question/10354322
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can somebody help me pleaseeee !
Answer:
First and Third one
Step-by-step explanation:
First one: No Solution
Second one: x= All real numbers
Third one: No Solution
Fourth one: All real numbers
What is given to be congruent in this picture? **May be multiple answers!!***
A
х
А
с
A ABC 2A XYZ
BC=YZ
Answer:
ΔCBA ≅ ΔZYX
ΔBCA ≅ ΔYZX
BA ≅ YX
AC ≅ XZ
Step-by-step explanation:
Help please I'll mark brainliest if I can
Answer: A
Step-by-step explanation:
Answer:
A!! Have a great day
Step-by-step explanation: