Answer:
-4
Step-by-step explanation:
A store sells a box of pencils for $3. Each box contains 24 pencils. How much will it cost a teacher to buy pencils
for 25 students?
$6
$9
$54
$150
Answer:
$6
Step-by-step explanation:
This is for one pencil to each student. Since each box is $3, and she has 25 students, you would figure out how many students are left out with one box, and since you only have one left, you only need one more box. That would mean two boxes, so $3x2= $6
Answer:
Hii, okay so I went thru my old test (from like a month ago), and the answer $6
Hope this helps! :)
Step-by-step explanation:
Pls help ASAP I’ll give brainliest
Answer:
B. 11.42Step-by-step explanation:
Use the law of cosines:
[tex]c = \sqrt{a^2+b^2-2ab*cosC}[/tex]Substitute the values:
[tex]c = \sqrt{9^2+12^2-2*9*12*cos64}=11.42[/tex]Use law of cosines
c=√a²+b²-2abcosCc=√9²+12²-2(9)(12)cos64c=√81+144-216cos64c=√225-216cos64c=11.42 approxDiseases tend to spread according to the exponential growth model…Help plz!! Will mark branliest! Show me the steps.
[tex]growth\:=(\frac{present \: value}{past \: value})^{ \frac{1}{n} } \: - 1 [/tex]
past value = 1700 people
n = 2005 - 1983 = 22
growth rate = 190%
present value = ?
then,
[tex]190\% = ( \frac{?}{1700})^{ \frac{1}{22} } - 1[/tex]
1.9 = (x/1700) ^(1/22) - 1
1.9 + 1 = (x/1700) ^(1/22)
2.9 = (x/1700) ^(1/22)
log 2.9 = 1/22(logx - log 1700)
log2.9 = 1/22logx - 1/22log1700
log2.9 + 1/22log1700 = 1/22logx
log(2.9 * 1/22(1700)) = 1/22logx
log 224 = 1/22logx
log(224 - 1/22(x)) = 1
log(224 - 1/22(x)) = log 10
224 - 1/22(x) = 10
(234) * 22 = x
x = 5148.
Number of people to die from AIDS would have been 5148 if left unchecked.
That's what I found. Please feel free to tell me where am wrong.
All the best!
Please help ASAP BRAINLEST!!!
Answer:
-5/6a - 5/8
Step-by-step explanation:
In order to to simplify the linear expression you must combine like terms.
"like terms" are terms whose variables and exponents are the same. for example 2x and x are like terms. In this case, -2/3a and -1/6a are like terms as they have the same variable (a) and exponent (1). -2/3a - 1/6a = -4/6a - 1/6a = -5/6a
Next, we combine the constants 1/8 and -3/4. 1/8 - 3/4 is the same as 1/8 - 6/8 which is equal to -5/8. Therefore the final simplified linear expression is -5/6a -5/8.
Additional help
if you require additional help on adding fractions whose denominators are not the same see the link below:
https://www.varsitytutors.com/hotmath/hotmath_help/topics/adding-fractions-unlike denominators#:~:text=If%20the%20denominators%20are%20not,Then%20add%20and%20simplify.
Please solve this equation
Answer:
try 80
Step-by-step explanation:
cause u add the number
How many ghosts are in the
haunted house? Here are some
clues: There are more ghosts
than the number of days in
October. There are less than
the product of 7 and 5. The
answer is an odd number.
Answer:
33
Step-by-step explanation:
31 days in October
7x5=35
possible answers are:
32,33,34
as to be odd so its 33
There are 12 inches in 1 foot. Use a proportion to covert 12 feet into inches.
Ejercicio 3. Aplica las leyes de los exponentes de potencia elevada a otra potencia y de producto,
para simplificar los siguientes ejercicios
Aplicando las leyes de los exponentes de potencia, los resultados son los siguientes:
[tex]2097152[/tex] [tex]\frac{1}{729}[/tex] [tex]b^{12}[/tex] [tex]x^{24}[/tex][tex]x^{\frac{6}{5} }[/tex][tex]3600[/tex][tex]a^{6}\cdot b^{10}\cdot c^{-8}[/tex][tex]200\cdot x^{19}[/tex][tex]108\cdot y^{6}[/tex]En este ejercicio debemos aplicar cualesquiera de las siguientes propiedades asociadas a los exponentes:
(i) [tex](a^{b})^{c} = a^{b\cdot c}[/tex]
(ii) [tex]a^{c}\cdot b^{c} = (a\cdot b)^{c}[/tex]
(iii) [tex]a^{-b} = \frac{1}{a^{b}}[/tex]
(iv) [tex]a^{b} = a^{b}[/tex], donde [tex]a[/tex] es negativo o positivo y [tex]b[/tex] es par.
(v) [tex](-a)^{b} = -a^{b}[/tex], donde [tex]a[/tex] es positivo y [tex]b[/tex] es impar.
(vi) [tex]a^{b}\cdot a^{c} = a^{b+c}[/tex]
A continuación, tenemos los siguientes resultados:
a) [tex](2^{3})^{7} = 8^{7} = 2097152[/tex]
b) [tex](3^{3})^{-2} = 3^{-6} = \frac{1}{729}[/tex]
c) [tex](b^{3})^{4}=b^{12}[/tex]
d) [tex][(x^{2})^{3}]^{4} = (x^{6})^{4} = x^{24}[/tex]
e) [tex]\left(x^{\frac{3}{5} }\right)^{2} = x^{\frac{6}{5} }[/tex]
f) [tex](3\cdot 4\cdot 2)^{5} = 3^{2}\cdot 4^{2}\cdot 5^{2} = 9\cdot 16\cdot 25 = 3600[/tex]
g) [tex](a^{3}\cdot b^{5}\cdot c^{-4})^{2} = (a^{3})^{2}\cdot (b^{5})^{2}\cdot (c^{-4})^{2} = a^{6}\cdot b^{10}\cdot c^{-8}[/tex]
h) [tex](2\cdot x^{5})^{3}\cdot (-5\cdot x^{2})^{2} = (2^{3}\cdot x^{15})\cdot [(-5)^{2}\cdot x^{4}] = (8\cdot x^{15})\cdot (25\cdot x^{4}) = (8\cdot 25)\cdot x^{19} = 200\cdot x^{19}[/tex]
i) [tex]\left(3\cdot y^{\frac{2}{3} }\right)^{3}\cdot (2\cdot y^{2})^{2} = (27\cdot y^{2})\cdot (4\cdot y^{4}) = 108\cdot y^{6}[/tex]
Invitamos cordialmente a consultar esta pregunta sobre potencias: https://brainly.com/question/24239709
plzzz help me what is 3[x -6]
Answer:
3x - 18
Step-by-step explanation:
Vera's piggy bank contained $10.90 in quarters, dimes, and nickels. There were six more than two times as
many nickels as quarters and four less than two times as many dimes as quarters.
Create an equation to represent the situation.
Answer:
[tex]6+2n+4-2d\cdot n = 1090[/tex]
Step-by-step explanation:
We have to convert everything to the same value. For example, 8$ would be 8 cents. And 1 Nickle would be 5 cents.
n = number of nickles
d = the number of dimes
q = number of quarters
1 nickle = 5 cents
1 dime = 10 cents
1 quarter = 25 cents
Step 1: Convert the total amount from dollars to cents.
There were $10.90 in total. Since there are 100 Cents in 1 Dollar, there would be 1090 cents in 10.90 dollars. (Tip you can easily find how many cents there are in dollars if you simply remove the decimal ".")
We are converting this because we need to have every value in the same term.
Step 2: Convert all of the amounts to cents.
https://brainly.com/question/11871024
6.
A line passes through (–7, –5) and (–5, 4).
a. Write an equation for the line in point-slope form.
b. Rewrite the equation in standard form using integers.
Answer:
b. y + 5 = 9/2 ( x + 7 ) ; - 9 x + 2 y = 53
Step-by-step explanation:
The equation:
y - y 1 = ( y2 - y1 ) / ( x2- x1) * ( x - x1 )
y - ( - 5 ) = ( 4 + 5 ) / ( - 5 + 7 ) * ( x - ( - 7 ) )
y + 5 = 9/2 ( x + 7 )
y + 5 = 9/2 x + 63 /2 / * 2
2 y + 10 = 9 x + 63
- 9 x + 2 x = 53
Answer:
C ) y + 5 = 9/2 ( x + 7 ) ; - 9 x + 2 y = 53
Answer:
Option C is correct
Step-by-step explanation:
Point slope form:
The equation of line is given by:
....[1] where m is the slope and a point lies on the line.
Given that:
A line passes through (-7,-5) and (-5,4).
Calculate slope:
Slope is given by:
Substitute the given values we have;
Simplify:
Substitute thee value of m and (-7, -5) in [1] we have;
Simplify:
⇒
Using distributive property :
Subtract 9x from both sides we have;
Subtract 10 from both sides we have;
Therefore, an equation for the line in point-slope form is and the equation in standard form using integers is
Y=2x-4
What is the five ordered pairs and completing the input/output table
Answer:
{(0, -4), (1, -2), (2, 0), (3, 2), (4, 4)}
Input values (x) = {0, 1, 2, 3, 4}
Output values (y) = {-4, -2, 0, 2, 4}
Step-by-step explanation:
Given the linear equation, y = 2x - 4, you could practically choose any input value (for x), to have an output value (for y).
If x = 0:
y = 2(0) - 4
y = 0 - 4
y = -4
First ordered pair: y-intercept = (0, -4)
If x = 1:
y = 2(1) - 4
y= 2 - 4
y = -2
Second ordered pair: (1, -2).
If x = 2:
y = 2(2) - 4
y= 4 - 4
y = 0
Third ordered pair: x-intercept = (2, 0).
If x = 3:
y = 2(3) - 4
y = 6 - 4
y = 2
Fourth ordered pair: (3, 2).
If x = 4:
y = 2(4) - 4
y = 8 - 4
y = 4
Fifth ordered pair: (4, 4).
Your input values (x) = {0, 1, 2, 3, 4}
Your output values (y) = {-4, -2, 0, 2, 4}
A local pizza shop has a membership program for frequent buyers. The membership costs $15 per month and members get a discounted price of $2 per slice of pizza. Anna purchased a membership to this pizza shop. How much would Anna have to pay the pizza shop if she bought 11 slices of pizza this month? What would be the monthly cost for xx slices of pizza
Answer:
$37
2x+15=y
Step-by-step explanation:
2x+15=y would be the function for any member's cost to be figured.
In Anna's case, if she bought 11 slices of pizza for $2 each and paid for her monthly membership of $15 then the equation would be
2(11)+15=
2x11=22
22+15=37
Her cost for that month would be $37
Please help!!! Confused!
Answer:
m∠3 = 57.5 , Angle No.1 = 82, Angle No.2 = 98
Step-by-step explanation:
4.
m∠3 = 90 - 32.5
m∠3 = 57.5°
5.
Linear pair means a pair of adjacent angles formed when two lines intersect, and their sum is 180°
In the question it want one of the angles to be 16° more then the other, so the measures of the angles will be
180 - 16 = 164
164/2 = 82
Angle 1 = 82° Angle 2 = 82°+16 = 98°
Draw a straight angle (straight line), intersect it with another line such that the two angles that will be formed one of them will be of measure 98° and the other 82°
Please help me with this :(
Answer:
oh god im only in 8th grade i have no idea
Step-by-step explanation:
Answer: BRAINLYPATROL STOP REMOVING MY ANSWERS
Step-by-step explanation:
Help me please i don't understand this thanks
Answer:
12.75
Step-by-step explanation:
12.75 rounded to the nearest tenth is 12.8, and 12.74 won't work because it will round to 12.7.
Therefore, 12.75 is the smallest possible number.
Determine whether the graphs of the given equations are parallel, perpendicular, or neither.
y=−6
x=2
Choose the correct answer below.
A.
Perpendicular
B.
Neither
C.
Parallel
Answer:
A. Perpendicular
CarryOnLearning
In a clothing store, a pair of pants that regularly sell for $42 is marked, "Save 15%." What is the sale price of the pants?
Can anyone help? I have no idea how to do this
if 9m away from deep point, m1 also away from 9m to radius line.
so if we draw 2 x 2y to 1 half side of circle, y is connected with 9m, x is connected to 6m.
2 x = 150 sec
if i say 1 x 6m 2x 12m
x =75 sec =12.5 sec
(2x +2y ).2 is whole circle round
12.5*15*2
750 second is answer
is it true?
Look at the figure
is it
A) CML
B)LCM
C)MLC
D)MCL
The unit measure for atmospheric pressure is kPa (Kilo-Pascals). At sea level the standard
atmospheric pressure is 101.3 kPa. For every 1000 feet increase in altitude, atmospheric
pressure decreases by 1.8 kPa. What is the atmospheric pressure at 50,000 feet?
The pressure change is an illustration of an arithmetic progression.
The atmospheric pressure at 50000 feet is 11.3 kPa
The given parameters are:
[tex]\mathbf{a = 101.3}[/tex] --- the first term
[tex]\mathbf{d = -1.8 per 1000}[/tex] -- common difference
At 50000 feet, the number of increment in altitude is
[tex]\mathbf{n = \frac{50000}{1000}}[/tex]
[tex]\mathbf{n = 50}[/tex]
So, the atmospheric pressure at 50000 feet is:
[tex]\mathbf{T_{50} = 101.3 - 1.8 \times 50}[/tex]
[tex]\mathbf{T_{50} = 101.3 - 90}[/tex]
[tex]\mathbf{T_{50} = 11.3}[/tex]
Hence, the atmospheric pressure at 50000 feet is 11.3 kPa
Read more about arithmetic progressions at:
https://brainly.com/question/13989292
Giving Out Brainliest
Answer Asap
thx
Answer:
(4x+2°)=(7x-25°) vertically opposite angles equal4x-7x = -25°-2°-3x = -27°x=9°Find the translation that moves the figure 2 to figure 3 on the coordinate plane.
RA
O (x + 3, y + 3)
O (x + 4, y + 2)
O (x -4, y +1)
O (x-4, y-2)
N
BRAINLIEST!!! +20 POINTS!!! REAL ANSWERS ONLY!!!
Answer:
i dont know
Step-by-step explanation:
ayyyyy armys/kpop fan come here
answer my question
Who is your ultimate bias in any group and y
i will give Brainliest
Answer: food
Step-by-step explanation: food & more food
Answer:
Jungkook from BTS
Step-by-step explanation:
He's just really funny and has a nice voice.
prove that
[tex]sinAsin(A+2B)-sinBsin(B+2A)=sin(A-B)sin(A+B)[/tex]
pls help...
Answer:
The identity sinA sin(A+2B) - sinB sin(B+2A) = (sinA)^2 - (sinB)^2 is proved below.
Step-by-step explanation:
sinA sin(A+2B) - sinB sin(B+2A) =
sinA ( sin(A) cos(2B) + sin(2B) cos(A) ) - sinB (sin(B)cos(2A) + sin(2A)cos(B) ) =
sinA( sinA [cos^2(B)- sin^2(B)] + 2 sin(B) cos(B) cosA ) - sinB( sinB(cos^2A-sin^2A)+2 sinA cosA cos(B) ) =
sin^2A(cos^2B-sin^2B) + 2 sinB cosB sin(A) cos(A) - sin^2B(cos^2A-sin^2A) - 2 sinA sinB cosA cosB =
sin^2A(cos^2B-sin^2B) - sin^2B(cos^2A-sin^2A) =
sin^2Acos^2B - sin^2Asin^2B - sin^2Bcos^2A + sin^2Bsin^2A =
sin^2Acos^2B - sin^2Bcos^2A =
(1 - cos^2A)(cos^2B) - (1 - cos^2B)(cos^2A) =
cos^2B - cos^2A cos^2B - cos^2A + cos^2B cos^2A =
cos^2B - cos^2A =
1 - sin^2B - (1 - sin^2A) =
sin^2 (A) - sin^2 (B)
HELP HELP HELP!!!!!!!!!!!
Answer:
i think it's d
Step-by-step explanation:
Help me with 1 and 2
Answer:
2)A function can be represented verbally. For example, the circumference of a square is four times one of its sides.A function can be represented algebraically. For example,3x+6.A function can be represented numerically.A function can be represented graphically.3)Comparing two mathematical functions and studying the properties of one function are two different problems. Most of the properties you listed are properties a function has, rather than what you would use to compare two functions. Yes you can compare two functions by stating that they have different domains/ranges, whether one is injective and another is not, but these comparisons aren’t really that interesting (rather, we are more interested in whether a function has certain properties).
3.A square field has a side length of 6 x 10^3 meters.Which of the following is its area in square meters?
A.6 x 10^6
B.36 x 10^9
C.36 x 10^6
D. 6 x 10^9 ANYONE PLEASE HELP ME WITH MY MATH HOMEWORK I REALLY NEED THE ANSWER RIGHT NOW BECAUSE I HAVE TO PASS THIS TOMORROW I HOPE Y'ALL CAN HELP ME:(I'LL MARK BRAINLIEST FOR THOSE WHO CAN ANSWER IT CORRECTLY! PS: DON'T WASTE MY POINTS PLEASE I WORK HARD FOR THIS POINTS IF YOU DON'T KNOW THE ANSWER CARE TO IGNORE:)
Answer:
C: 36 × 10^6 m²
Step-by-step explanation:
Given the side length of a square = 6 × 10³m,
To solve for the area of a square, use the following formula:
A = S² where:
S = side of the square
Substitute the given value for the side into the formula:
A = S²
A = (6 × 10³)²
A = 36000000 or 36 × 10^6 m²
NOTE:
6 × 10³ is also the same as 6 × 1000 = 6000,
(6 × 10³)² is essentially 6,000² = 36,000,000
Therefore, the correct answer is C) 36 × 10^6
I need help really bad