Answer:
90:30 is the answer
only if we use over 2
What is the solution to the system of equations
y=3x+7
2x+3y=32
Answer:
x=1, y=10
Step-by-step explanation:
I'm gonna use the method of substitution.
2x+3(3x+7)=32
2x+9x+21=32
11x=11
x=1
y=10
A designer is adding a pendant to a jewelry collection. the shape of the pendent can be defined by the equation y = startfraction 1 over 20 endfraction x squared endfraction. if the largest dimension of the pendant is 10 cm wide, what is the greatest length? 1.25 cm 2.50 cm 5 cm 10 cm
If the largest dimension of the pendant is 10 cm wide then the greatest length will be 5 cm. Then the correct option is C.
What is a function?The function is an expression, rule, or law that defines the relationship between one variable to another variable. Functions are ubiquitous in mathematics and are essential for formulating physical relationships.
A designer is adding a pendant to a jewelry collection.
The shape of the pendant can be defined by the equation
[tex]\rm y = \dfrac{1}{20}\ x^2[/tex]
If the largest dimension of the pendant is 10 cm wide then the greatest length will be
[tex]\rm y = \dfrac{1}{20}\ (10)^2\\\\\\\rm y = \dfrac{1}{20}\ 100\\\\\\\rm y = 5[/tex]
More about the function link is given below.
https://brainly.com/question/5245372
Answer:
1.25 cm
Step-by-step explanation:
Use the Distributive Property to expand 4(x+3)
Answer:
4x+12
Step-by-step explanation:
4(x+3)=4x+12.
You use the distributive property by multiplying both numbers in the parentheses by 4
Answer:
4x +12
Step-by-step explanation:
Distributive property: a*(b + c) = (a *b)+(a *c)
Here, a = 4 ; b = x and c = 3
4*(x + 3) = 4*x + 4*3
= 4x + 12
Which quadratic equation is equivalent to (x + 2)^2 + 5(x + 2) - 6 = 0?
Answer:
[tex]x^2[/tex] + 9x + 8 = 0
Step-by-step explanation:
First, we have to simplify this quadratic equation:
(x+2)^2 + 5(x+2) - 6 = 0
x^2 + 4x + 4 + 5x + 10 - 6 = 0
x^2 + 9x + 8 = 0
What is the value of x in the figure?
Enter your answer in the box.
x =
Answer: x = 29
Step-by-step explanation:
Complementary angle. 90-61=29. Basically finding what the number is shown from minus 90 since its complementary. :)
pleas help in math!! i need an explanation on how you got he answer too please!!
(no links please!)
Answer:
a = 70 degrees.
Step-by-step explanation:
Use this circle angle theorem:
The angle subtended by an arc at the center of a circle = 2 times the angle subtended by the arc on the circumference.
So m < a = 1/2 * 140 = 70 degrees.
What is the recursive rule?
Question 4 options:
an = 2an−1; a1 = 30,000
an = 2an+1; a1 = 30,000
an = 2n; a1 = 30,000
an = 2an; a1 = 29,500
The recursive rule for the sequence in simplified form is an = 2n; a1 = 30,000
How to write the recursive functionGiven the following parameters
a is the initial values = 30,000
If the amount doubles each year then b = 2
Let n be the number of years such that if the numbe r keeps doubling then:
an = 2n
First term a = 30000 (iniital value)
Hence the recursive rule for the sequence in simplified form is an = 2n; a1 = 30,000
Learn more on recursive rule here: https://brainly.com/question/2059043
Maria and Sheila took part in a Mathematics competition. Sheila obtained 96 marks in the competition. If 2/5 of Maria's marks is equal to 1/4 of Sheila's marks, calculate the total marks obtained by both of them in the competition.
Maria and Sheila total marks are illustrations of proportions
The total marks obtained by both is 156
How to determine their total marks?The given parameters are:
Sheila = 96 marks
2/5 of Maria's marks = 1/4 of Sheila's marks
The second highlight above means that:
2/5 * Maria = 1/4 * 96
Multiply both sides by 5/2
Maria = 1/4 * 96 * 5/2
Evaluate the product
Maria = 60
Their total mark is then calculated as:
Total = Sheila + Mark
This gives
Total = 96 + 60
Evaluate the sum
Total = 156
Hence, the total marks obtained by both is 156
Read more about proportions at:
https://brainly.com/question/1781657
Of the 30 students in the sixth period math class, 8 are also in the same fourth period science class. Which can be
used to determine the probability that if three students are chosen at random from the math class to do a group
project, the first student chosen to be in the group is in the fourth period science class but the other two are not?
a [8/30][22/29][21/28
b [8/30][8/30][8/30]
c [8/30][7/29][6/28]
d [8/30][22/30][21/30]
Answer:
I think the answer is b sorry if the answer is wrong
what are the exact volumes of x and y? (attached image)
Answer:
X is the value of y so work it out mothe
Answer:
Since already answered i need points so yea
please help to simplify 4+2×-4+8×-1
_____________________________________________________
Calculate[tex]4+2\times (-4)+8\times (-1)[/tex]
_____________________________________________________
Determine the sign for multiplication or division[tex]4-2\times 4+8\times (-1)[/tex]
[tex]4-2\times 4-8[/tex]
______________________________________________________
Calculate the product or quotient[tex]4-8-8[/tex]
______________________________________________________
Calculate the sum or difference[tex]-4-8[/tex]
[tex]-12[/tex]
I hope this helps you
:)
Stacey bookshelf measures 48 inches high 36 inches long and 24 in wide
Answer:
5,184 cubic inches
Step-by-step explanation:
Solve the equation -4x^3=32
Answer:
-2
Step-by-step explanation:
-4x^3 = 32
x^3 = -8
take the cube root of both sides.
x = -2
[tex]-4x^3= 32\\\\\implies x^3 = -\dfrac{32}4\\\\\implies x^3 = -8\\\\\implies x^3 +8 = 0\\\\\implies x^3 +2^3 =0\\\\\implies (x+2)(x^2 -2x +2^2)=0\\\\\implies (x+2)(x^2 -2x +4) = 0\\\\\implies x +2 =0~~~\text{or} ~~~~x^2 -2x +4 = 0\\ \\\implies x = -2 ~~~~~~\text{or} ~~~~ x= \dfrac{2 \pm\sqrt{-12}}{2}=\dfrac{2 \pm i\sqrt{12}}2}=\dfrac{2\pm2i\sqrt3}{2}=1\pm i\sqrt 3\\\\\text{Hence,}~ x = -2,~~ x = 1+i\sqrt 3,~~~ x= 1-i\sqrt3[/tex]
HELPPPPPPPPPPPPPPPPPPPPPP
Answer:
The answer would be team D as their range is 24.
Step-by-step explanation:
Team A: range of 27
Team B: Range of 32
Team C: Range of 27
Team D: Range of 24
Team D has the lowest range found by subtracting the larger number 46 by the smaller number 22.
A road is 4350m long, correct to the nearest 10 metres. Kirsty drove along the road in 205 seconds, correct to the nearest 5 seconds.
The average speed limit for the road is 80km/h
Could kirsty’s average speed have been greater than 80km/h?
Kirsty's Average speed is not greater than 80km/h
What is speed?Speed is the rate of change of distance.
Analysis:
length of road = 4350m = 4350/1000km = 435/100km
time taken = 205 seconds = 205/3600 hour
Her Speed = 435/100 ÷ 205/3600 = 435/100 x 3600/205 = 76.4km/h
In conclusion, Kirsty's average speed is not greater than 80km/h.
Learn more about speed: brainly.com/question/4931057
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Nadya bakes 20 cookies every half hour. Vasil sells 38 cookies per hour. How many cookies are left unsold if they work from 6:00 am till noon.
Answer:
12
Step-by-step explanation:
20*2= 40 cookies per hour,
she is working 6 hours so she sells 240 cookies total
240-(38*6) = 12
Nadya bakes 20 cookies every half hour. Vasil sells 38 cookies per hour. 12 cookies that are left unsold and if they work from 6:00 am till noon.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
Nadya bakes 20 cookies every half hour. Vasil sells 38 cookies per hour.
We need to find many cookies that are left unsold and if they work from 6:00 am till noon.
20 x 2= 40 cookies per hour,
she is working 6 hours so she sells 240 cookies
The total
= 240 - (38 x 6)
= 12
Learn more about the unitary method;
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Find the exact circumference of a circle with a diameter of 5 inches.
The circumference is
inches.
Answer:
15.7 in
Step-by-step explanation:
You can use the below formula to find the circumference of the circle.
C = π × d
Here,
d ⇒ diameter ⇒ 5 in
Let us find it now.
C = π d
C = 3.14 × 5
C = 15.7 in
Answer:
The exact diameter is 15.707963267948966192313216916398 inches multiplied by full form of pi.
________________________________________________________
SolveSet C as your substitute for circumference.
[tex]C =[/tex]
Now that we have this, we need to assign a value of pi long form followed by the diameter, which is 5 inches².
[tex]C = \pi d[/tex]
[tex]d = 5[/tex]
Lastly, ignore C, and multiply pi by the diameter, d.
[tex]\pi * d = 15.707963267948966192313216916398[/tex] without rounding
________________________________________________________
Questions?Ask in the comments box.
f(x)=2x^3-6x+k and the remainder when f(x) is divided by x+1=7 then what is the value of k
Given: f(x)=2x(cube)-6x+x
reaminder of f(x) when (x+1) diveded
to find value of k
solution,
f(x)=2x(cube)-6x+k
f(-1)=7
2(-1)(cube)+6+k=7
4+x=7
k=7
Hence,k=7
the other two questions are asking what is the actual length and what is the actual witdh.so yea...
Answer:
the answer could be 60
Step-by-step explanation:
I could be wrong sorry if I am
Mr. Beasley's science class wants to decorate one wall in the classroom like an underwater scene. They use sheets of blue poster board that are 2 feet long and 2 feet wide. How many sheets of blue poster board are used to cover the entire area of the wall? use math words and symbols to explain how you solve
Answer:
however big her wall is. if you give me how big her wall is i can help u more on this
Step-by-step explanation:
The population density of a city is 121 residents per square mile. There are exactly 4,205 that live in the city.
What is the area of the city?
Answer:
34.75 ( that's round to the nearest hundredth )
Step-by-step explanation:
do the math
Describe how to compare the two ratios 5:8 to 7:9. Tell each step to set up the ratios, then explain what to do to be able to compare the ratios. Finally make sure to answer how the ratios compare. ~ 100 POINTS AND ILL GIVE YOU BRAINLIEST IF YOU ANSWER CORRECTLY AND 5 SENTENCES NEEDED
Step-by-step explanation:
The ratio's can be expressed as fractions and you may compare those.
5 : 8 = 5/87 : 9 = 7/9In order to compare fractions you need to bring them into equal denominator.
8 and 9 have LCM of 8*9 = 72 since they have no common factors.
The equivalent fractions with common denominator are:
5/8 = 9*5/(9*8) = 45/727/9 = 8*7/(8*9) = 56/72Now we can compare the fractions:
45/72 < 56/72, since 45 < 56What is the value of the expression
below?
8 - 3116
A. -40
-
B. -4
C.
2
D.
20
Answer:
i do not understand how you wrote this please explain better
Step-by-step explanation:
I need some help with this?
Answer:
9 is the answer
PLS TYPE 9
Step-by-step explanation:
99999
can somebody help me
Answer:
Area = 202 in^2
Step-by-step explanation:
Divide those into pieces to solve for each area and then add the area together.
Left Rectangle:
13 in * 4 in = 52 in^2
Right Rectangle:
15 in * 10 in = 150 in^2
Total Area = 117 in^2 + 150 in^2 = 202 in^2
5/8 + 7/4 add these two together
Answer:
19/8
Step-by-step explanation:
[tex]\frac{5}{8} + \frac{7}{4} = \frac{5}{8} + \frac{14}{8} = \frac{19}{8} = 2\frac{3}{8}[/tex]
solve a simplify ( no exponent )
need the answer …
Answer:
1/3
Step-by-step explanation:
Your choice of answer must be consistent with the instructions.
The only answer with no exponent is the correct one:
1/3
__
The rules of exponents tell you ...
(a^b)(a^c) = a^(b+c)
3^(-4) × 3^3 = 3^(-4+3) = 3^-1
and
a^-b = 1/a^b
so
3^-1 = 1/3^1 = 1/3 . . . . written without an exponent
Calculate the sum of the interior angles of the following hint.
Answer:
A- 900 degrees
B- 1800 degrees
C- 540 degrees
The sum of the interior angles of a heptagon is 900 degrees. The interior angles of a dodecagon add up to 1800. The interior angles of a pentagon add up to 540.
Evaluate the formula for the perimeter of a rectangle to solve the problem. Then check all that apply.
ANSWERS:
First, write the formula for the perimeter of a rectangle: P = 2l + 2w.
Next, use parentheses when you substitute 50 for l and 25 for w.
After multiplying, add 100 and 50.
The school needs 5,000 meters of fencing.
The school needs 150 meters of fencing.
1. 2(8x – 1) + 2(2x + 4)
2. 16x – 2 + 4x + 8
3. (20x + 6)
Step-by-step explanation:
The perimeter of the rectangle with length 8x - 1 and width 10x + 3 is 20x + 6
The formula for calculating the perimeter of a rectangle is expressed as:
P = 2( l + w)
Given the following parameters
length l = 8x - 1
width w = 2x + 4
Substitute the expressions for the length and width into the formula;
P = 2(8x - 1 + 2x + 4)
P = 2(10x + 3)
Distribute 2 over each term in the parenthesis
P = 2(10x) + 2(3)
P = 20x + 6
Hence the perimeter of the rectangle with length 8x - 1 and width 10x + 3 is 20x + 6
if i help please give brainly
Answer:
below
Step-by-step explanation:
A B C E
all of them but D
What is the value of x?
