Solve the system of equations -x+y=14−x+y=14 and -5x-7y=10−5x−7y=10 by combining the equations.
Answer:
5y-4x
Step-by-step explanation:
2y+3y
-2x*2x
Write the expression in simplest form 2+3a+9a
Answer: 2+12a
Step-by-step explanation:
add like terms: 3a+9a
Classify the object with the given side lengths as acute, obtuse, right, or not a triangle.
16, 21, 28
Right
Acute
Obtuse
Not a triangle
Answer:
We have to first see that the given lengths makes a triangle or not by using a+b > c in which a,b and c are
length of sides of a triangle lets check out
16 + 21 = 37 > 28
21 + 28 = 49 > 16
16+ 28 = 44 > 21
As because the statement fits correct in the lengths given so its a triangle
So we can say that the triangle is scalene by means of measurements
but cant be a right angle as by taking the pythagorean triplet
= a^2 + b ^ 2 = c^2
lets see if a=16, b = 21 and c = 28
So a^2 + b^2
= 256 + 441
= 697
but c^2
= 28^2 = 784
As 441 =/= 784
So The triangle lengths cant be a right angled triangle
So 1/2 of possibility is the traingle acute and 1/2 of the possibilty that the triangle is obtuse
Now you can find the correct triangle on the basis of acute or obtuse angle by drawing with given length of sides of triangle
Hope it helps
which number is the largest?
Answer:
The largest number is -0.622
Step-by-step explanation:
If you do -5/8 on a calculator you get -0.625.
If you order them (least to greatest) they would be ordered like this:
-0.65, -5/8, -0.622
Deena drinks 2 cups of milk per day. She buys 5 quarts of milk. How many days will her 5 quarts of milk last?
Answer:
10 days
Step-by-step explanation:
Given data
Deena drinks 2 cups of milk per day
from table
1 cup = 0.25 quarts
Hence she drinks
0.5quarts per day
Hence if 0.5quarts last for 1 day
5quarts will last x days
cross multiply
0.5x= 5*1
x= 5/0.5
x=10 days
Find x in the image above.
(I circled x)
Answer:
6
Step-by-step explanation:
I am pretty sure this is the right answer because, to get 3 you subtracted 2 from 5. So if you subtract 2 from 8 you get 6.
A laptop computer is purchased for $2000. After each year, the resale value decreases by 25%. What will the resale value be after years?
Use the calculator provided and round your answer to the nearest dollar.
$[]
Answer:
2000? ... assume $2000
Resale Value = $2000*(1 - 0.25)t/yr
where: t = number of year after purchase
at t = 3 yr
Resale Value = $2000*(1 - 0.25)3 = $843.75
checking: at t = 0 $2000 (purchase price)
at t = 1 yr $2000 - 0.25*$2000 = $2000 - $500 = $1500
at t = 2 yr $1500 - 0.25*$1500 = $1500 - $375 = $1125
at t = 3 yr $1125 - 0.25*$1125 = $1125 - $281.25 = $843.75
Solve 8y+21=-14y+26 for y. Round your answer to the nearest tenth.
Answer:
y=0.2
Step-by-step explanation:
it will give you 5/22 and the decimal form will be 0.2272727...... and rounded to the nearest tenth will be 0.2
PLZ HELP PLZ PLZ WILL MARK AS BRAINLIESTT!!
A cylindrical bottle has a volume of 1,413 in3 and a radius of 5 inches. What is the height of the bottle?
Answer:
h = 17.9909 in
General Formulas and Concepts:
Symbols
π (pi) ≈ 3.14Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityGeometry
Volume of a Cylinder Formula: V = πr²h
r is radiush is heightStep-by-step explanation:
Step 1: Define
Identify variables
V = 1413 in³
r = 5 in
Step 2: Solve for h
Substitute in variables [Volume of a Cylinder Formula]: 1413 in³ = π(5 in)²hEvaluate exponents: 1413 in³ = π(25 in²)h[Division Property of Equality] Divide π on both sides: 449.772 in³ = (25 in²)h[Division Property of Equality] Divide 25 on both sides: 17.9909 in = hRewrite: h = 17.9909 inFind a positive angle less than 360° that is coterminal with the given angle.
-335°
o
A positive angle less than 360° that is coterminal with - 335° is
Answer:
3(360⁰)-335⁰
=1080⁰-335⁰
=745⁰ is a positive angle.
Plot a triangle with vertices located at (4, -2) (1, -2) and (4,5) on this coordinate plane To graph the triangle, select the places on the coordinate plane to plot the vertices. Your vertices will be connected in the order that they are plotted Here is the grid.
Please find the slope of this image plz
Answer:
1/4
Step-by-step explanation:
NEED HELP ASAP 15 POINTS
Answer:
mean = 2
median = 2.5
Step-by-step explanation:
There are a total of 20 goals (1*0 + 3*1 + 1*2 + 3*5 = 0 + 3 + 2 + 15 = 20)
There are 10 games, so 20/10 = 2 = mean
Threre are 5 games with goals greater than 2.5 and 5 games with goals below 2.5. So the median is 2.5
Which ordered pairs represent points that belong to the straight line
y-5x-2 ... Show your work.
A) (-4,-22)
B) (4; 6)
C) (-4; 6)
D) (4;18)
no links and pls show ur work
Help me on this one
IM CONFUSED!!!!!!!!!
WINNER GETS BRAINLEST
write the smallest possible odd number with all the following dight 5,2,3,7.
Answer:
2357
Step-by-step explanation:
√35 + √30 is approximately
Answer:
about 11
Step-by-step explanation:
answer is in picture
am I correct?
will mark brainliest
Answer:
Rhombus
Step-by-step explanation:
Mark as Brainllest
Question Progress
Homework Progress
4/
Work out the size of angle x.
105
140
Answer:
Step-by-step explanation:
Sum of angles of a triangle = 180
x + (180 - 105) + (180 -140) = 180
x + 75 + 40 = 180
x = 180 -75 - 40
x = 65
please helppp mee!!!
Answer:
$3.50
Step-by-step explanation:
2+2x=9
2x=7
x=3.5
$3.50
A principal of $3000 was
invested in a savings account
for 3 years. If the interest
earned for the period was
$450, what was the interest
rate?
A=P+Prt
Answer:
r = 0.05 or 5%
Step-by-step explanation:
3450 = 3000 + (3000 · r · 3)
450 = 9000 · r
450/9000 = r
r = 0.05 or 5%
For which distributions is the Median the best measure of center
Answer: The first graph demonstrates the best measure of center!
P.s if you feel this answer is satisfactory please mark it brainiest. I need it for my rank.
Somebody pleassseee tell me if I’m doing this right or wrong Pleassee
Answer:
-4.5
Step-by-step explanation:
[tex]6x+5.5=3x-8\\[/tex]
[tex]6x-3x=-8-5.5[/tex]
[tex]3x=-13.5[/tex]
[tex]x=\frac{-13.5}{3}[/tex]
[tex]x=-4.5[/tex]
What's the surface area?
Answer:
384yd^2
Step-by-step explanation:
Answer in attachment
Can someone pleaseeee help and if you’re correct i’ll cc give brainlies
Answer:
i believe it is mice
Step-by-step explanation:
I don't know why they didn't just call it mouses
Which of the following descriptions apply to the transformation? Select all that are correct. The graph with X-coordinate marks -4, -2, 0, 2, 4 and Y-coordinate mark -4, -2, 0, 2, 4. There is polygon ABCD with Coordinates A at (2, 4), B at (4, 4), C at (5, 2) and D at (2, 1) in quadrant 1 and polygon A'B'C'D' with coordinates A' at (-4, -2), B' at (-2,-2), C' at (-1, -4), D' at (-4, -4) in third quadrant. A. T⟨–6,–6⟩ B. 6 units down; 6 units left C. 6 units up; 6 units right D. T⟨6, 6⟩
Answer:b,d,a
Step-by-step explanation:
What is the possible value of x?
Answer:
Step-by-step explanation:
3^2+x^2=6^2
9+x=36
36-9=27
sqrt 27
x=5.2
Based on historical data, your manager believes that 43% of the company's orders come from first-time customers. A random sample of 243 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is between 0.2 and 0.39?
Answer:
Following are the solution to the question:
Step-by-step explanation:
[tex]p = 0.43\\\\n = 243\\\\\sigma =\sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{0.43 (1 -0.43)}{243}}=0.0013[/tex]
z-score for [tex]\hat{p}=0.2[/tex] will be:
z score for will be:
[tex]z=\frac{\hat{p}-p}{\sigma}=\frac{0.39 - 0.43}{0.0013}=-30.76[/tex]
[tex]P(0.2 <\hat{p}< 0.39) = P(-176.92 < z < -30.76)[/tex] using excel method to calculate the value.
Is it possible that someone can help me outside of this app please I really need it I have been stuck on this for days
Answer:
on what type of question
Step-by-step explanation:
I could if I know how to do it