Answer:
b.15 inches
Step-by-step explanation:
subtract 12 (2 6inch sides) from the perimeter
get 30 and divide by 2 to get 2 sides
Answer:
B. 15 inches.
Step-by-step explanation:
A rectangle shares two pairs of congruent opposite sides.
Perimeter = 42
Let:
the length of the rectangle = l
the width of the rectangle = w = 6
Perimeter = l + l + w + w
Plug in 42 for perimeter & 6 for w in the equation:
42 = l + l + 6 + 6
Combine like terms:
42 = ( l + l ) + (6 + 6)
42 = 2l + 12
Next, isolate the variable, l. Do the opposite of PEMDAS. First, subtract 12 from both sides:
42 (-12) = 2l + 12 (-12)
42 - 12 = 2l
30 = 2l
Next, divide 2 from both sides:
(30)/2 = (2l)/2
l = 30/2
l = 15
B. 15 inches is the length of the rectangle.
Check:
l + l + w + w = 42
15 + 15 + 6 + 6 = 42
30 + 12 = 42
42 = 42 (True).
~
Use trig ratios to find the measure of the angle in this triangle. A .cos^-1(4/5) B. tan(4/5) tan^-1(4/5) C. sin(4/5) D. cos(4/5) E. sin^-1(4/5)
Answer:
The answer is A
Step-by-step explanation:
Step 1: Use Cosine to find ∅
Cos∅=[tex]\frac{4}{5}[/tex]
∅=Cos[tex]^{-1}[/tex]([tex]\frac{4}{5}[/tex])
Therefore the answer is A
Select TWO possible values for x in the equation x2=45.
Answer:
[tex]3 \sqrt 5}[/tex] and [tex]-3 \sqrt 5}[/tex]
Step-by-step explanation:
Given
[tex]x^2 = 45[/tex]
Required
Determine the values of x
[tex]x^2 = 45[/tex]
Take square root of both sides
[tex]\sqrt{x^2} = \±\sqrt{45}[/tex]
[tex]x = \±\sqrt{45}[/tex]
Expand 45 as 9 * 5
[tex]x = \±\sqrt{9 * 5}[/tex]
Split the square root
[tex]x = \±(\sqrt{9} *\sqrt 5}[/tex]
[tex]x = \±3 *\sqrt 5}[/tex]
[tex]x = \±3 \sqrt 5}[/tex]
This can be further split to:
[tex]x = 3 \sqrt 5}[/tex] or [tex]x = -3 \sqrt 5}[/tex]
Hence, the possible values of x are
[tex]3 \sqrt 5}[/tex] and [tex]-3 \sqrt 5}[/tex]
Carson needs 3 quarts of water to make fruit punch, but has only a l-cup measuring cup.
She knows there are 2 cups in 1 pint, and 2 pints in 1 quart.
Use the drop-down menus to explain how Carson can find the number of cups of water she
needs to make the punch.
Please help!!!
Answer:
Cups of water she needs to make the punch is 12.
Step-by-step explanation:
Amount of water Carson need to make fruit punch = 3 quarts
2 cups is 1 pint
2 pints is 1 quart
1 pint = 1/2 quarts
2 cups is 1 pint which is 1/2 quarts
So, 1 cup:
1 cup is 1/2 times 2 quarts
1 quart is 1 times 2 times 2 cups equals 4 cups
So, 3 quarts equals 3 times 4 cups which equals 12 cups.
So it is 12 cups.
Cups of water she needs to make the punch is 12.
What is unit conversion?
A unit conversion expresses the same property as a different unit of measurement.
Given that, Carson needs 3 quarts of water to make fruit punch, but has only an l-cup measuring cup.
She knows there are 2 cups in 1 pint, and 2 pints in 1 quart.
Amount of water Carson need to make fruit punch = 3 quarts
2 cups is 1 pint
2 pints is 1 quart
1 pint = 1/2 quarts
2 cups is 1 pint which is 1/2 quarts
So, 1 cup:
1 cup is 1/2 times 2 quarts
1 quart is 1 times 2 times 2 cups equals 4 cups
So, 3 quarts equals 3 times 4 cups, which equals 12 cups.
Hence, she need 12 cups.
For more references on unit conversion, click;
https://brainly.com/question/19420601
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2 x square + 5 x - 3 = 0
help please
will give brainlest to the first answer
thank you
need the answer asap
Your question has been heard loud and clear.
2x^2+5x-3=0
Splitting the middle term (5x) we get , -1x+6x
So , 2x^2-1x+6x-3=0
2x^2-1x+6x-3=0
(2x^2-1x)+(6x-3)=0
taking common factor from(2x^2-1x) which is x and taking common factor from (6x-3) which is 3 , we get
x(2x-1)+3(2x-1)=0
So , solution that we get is
(x+3) and (2x-1)
Thank you.
Step-by-step explanation:
2x^2+5x-3=0.
which will be 2x^2+2x+3x-3=0.
2x(x+1)+3(x+1)=0.
2x+3=0,x+1=0.
x=-3/2,x=-1..
I hope this helps but please recheck the question especially 5x is it +5x or -5x.....Thank you for the question
Jermaine paid $10 for an item and the shop owner gave him $2 in change. Which expression represents how much less he would have in his wallet?
Answer:
Should be 10- (-2) lemme know if im wrong
Step-by-step explanation:
The answer is 10-(-2)
Simply the following radical expressions completely. Use the radical symbol in the equation editor to enter your response.
2✔️48
Answer:
[tex]\huge \boxed{8\sqrt{3}}[/tex]
Step-by-step explanation:
[tex]2\sqrt{48}[/tex]
Simplify [tex]\sqrt{48}[/tex].
[tex]2\sqrt{16} \sqrt{3}[/tex]
[tex]\sqrt{16}=4[/tex]
[tex]2 \times 4\sqrt{3}[/tex]
Apply rule : [tex]a \times b\sqrt{c} =ab\sqrt{c}[/tex]
[tex]8\sqrt{3}[/tex]
You purchase a 189-day, $1000 U.S. Treasury bill at 4.19% discount. On the date of maturity, you will receive $1000. How much interest does the U.S. Government pay to you on the date of maturity?
Answer:
The government paid an interest of $41.9, which is 4.19%
Step-by-step explanation:
Given the 189-day, $1,000 U.S Treasury bill is purchased at a discount of 4.19%, this means that:
It was purchased at a discount of:
4.19% of $1000
= (4.19/100) × 1000
= $41.9
Purchase price = $1000 - $41.9 = $958.1
Because the treasure is sold for $1000 on maturity day, that means the government paid an interest of $41.9, which is 4.19%
A calculator company plans to sell two models of graphing calculators that cost $100 and $150, respectively. The $100 model yields a profit of $40 and the $150 model yields a profit of $50. The company estimates that the total monthly demand will not exceed 250 units. What are the number of units of each model should be stocked in in order to maximize profit, assuming that the merchant does not want to invest more than $30,000 in inventory?
Answer:
The quantity of the first model is 150 and the second model is 100 that maximize the profit.
Step-by-step explanation:
Let the quantity of first model = x
Let the quantity of second model = y
The cost of the first model = $100
The cost of the second model = $150
Total number of models = 250 units
Total amount to spend on units = $30000
Now form the equations.
x + y = 250
100x + 150y = 30000
Now solve for the x and y.
x = 250 – y
Now insert this value in the 100x + 150y = 30000.
100(250 –y) + 150y = 30000
25000 – 100y + 150y = 30000
50y = 30000 – 25000
50y = 5000
Y = 100
Now insert the Y in x + y = 250
x = 250 – y
x = 250 – 100
x = 150
Therefore, the first model is 150 units and the second model is 100 units that maximize the profit.
A class had 6 students absent one Monday, This was of
the entire class. How many students were present that day?
Please help.
Step-by-step explanation:
la 6 es la mejor rspuesta
Which table has a constant of proportionality between y and x of 0.9? HELLO SOMEONE PLZ HELP this all depends on me on getting a phone plz help
Answer:
B
Step-by-step explanation:
seeing input/ output boxes= function
y is proportional to some constant (k)(constant of proportionality) times x
y=kx
y=0.9(x)
plug and chug...
4(.9)=3.6
6(.9)= 5.4
12(.9)= 10.8
Larry pickett earns 6% commission On all sales he also received a $700 bonuses if his commission exceeds $3000 hIs total sales were 65500 what was Total pay
Answer:
His total pay= $4,630
Step-by-step explanation:
Larry pickett earns:
commission=6% on all sales
He also received a $700 bonuses if his commission exceeds $3000
His total sales were 65500 what was Total pay
Commission= 6% of all sales $65,500
=6/100 × 65,500
=0.06 × 65,500
=3,930
His commission =$3,930
His commission exceeds $3000
Therefore,
His Total pay= Commission + bonus of $700 if his commission exceeds $3,000
=3,930 + 700
=4,630
His total pay= $4,630
A and B have certain number of mangoes. A says to B, " If you give me 10 of your mangoes, I will have twice as many as left with you." B replies, "If you give me 10 of your mangoes, I will have thrice the number of mangoes left with you. Find the original number of mangoes each had.
Answer:
A had 22 mangoes, B had 26 mangoes
Step-by-step explanation:
We can write the following system:
A + 10 = 2(B - 10) -- Equation 1
3(A - 10) = B + 10 -- Equation 2
A + 10 = 2B - 20 → A = 2B - 30 -- Equation 3 (Simplify Equation 1)
3(2B - 30 - 10) = B + 10 -- Equation 4 (Substitute 3 into 2)
3(2B - 40) = B + 10
6B - 120 = B + 10
5B = 130
B = 26 -- (Solve for B in Equation 4)
A = 2 * 26 - 30 = 22 -- (Substitute B = 26 into Equation 3)
What is the equation in slope form of line passing through (1,9) and(-1,11)
Answer:
y = -x + 10
Step-by-step explanation:
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Slope-Intercept Form: y = mx + b
Step 1: Find slope m
m = (11 - 9)/(-1 - 1)
m = 2/-2
m = -1
y = -x + b
Step 2: Find y-intercept b
9 = -(1) + b
9 = -1 + b
b = 10
Step 3: Rewrite linear equation
y = -x + 10
Which expression is equivalent to i^256?
-1
i
1
-i
Answer:
1
Step-by-step explanation:
i²⁵⁶ is the equivalent of (i²)¹²⁸.
(i²)¹²⁸ = (-1)¹²⁸ = 1.
Answer:
[tex]\Huge \boxed{1}[/tex]
Step-by-step explanation:
[tex]i^{256}[/tex]
[tex](i^4)^{64}[/tex]
Apply identity : [tex]i^4 =1[/tex]
[tex]1^{64}=1[/tex]
Select the domain and the range of the function as an inequality, using set notation, and using interval notation. Also select the end behavior of the function or complete the explanation why there is no end behavior. The graph of the quadratic function f(x) = 3x2 + 2 is shown.
The domain is the input value of x, which can be any real number.
There is no inequality.
Set notation x | E R. ( all real nUmbers)
Interval. Oration (-infinity, infinity)
Range: set x to 0 and solve:
3(0)^2 + 2 = 2
The lowest value is 2 and goes to infinity.
Inequality is >=
Set notation Y | >= 2
Interval notation : [2, infinity)
End behavior they both go to infinity .
Can you help me with this maths q please?
Answer:
See below
Step-by-step explanation:
a) line marked a is tangent
b) line marked b is radius
c) line marked c is diameter
d) line marked d is chord
Heights of certain plants at a nursery are normally distributed with a mean of 52.5 centimeters and a standard deviation of 7.2 centimeters. If their z-scores are greater than 2.25, the plants are displayed in the main lobby. To the nearest centimeter, what is the minimum required height for this type of plant to be displayed in the main lobby? Question 7 options: 68 cm 55 cm 69 cm 56 cm
Answer:
The correct option is;
69 cm
Step-by-step explanation:
The z-score, or standard score is a measure of how far a data is from the mean
The z-score, is given by the relation;
[tex]z = \dfrac{x- \mu}{\sigma}[/tex]
Z = Standard score
x = Value observed
μ = The mean height of the plants = 52.5 cm
σ = Standard deviation = 7.2 cm
Given that the z-score = 2.25, we have;
[tex]2.25 = \dfrac{x- 52.5}{7.2}[/tex]
Therefore, x = 7.2 × 2.25 + 52.5 = 68.7 cm ≈ 69 cm
Therefore, the minimum required height for this type of plant to be displayed in the main lobby is 69 cm.
How does the value of the digit 2 in the number 32000 compare with the value of the digit 2 in the number 26000
Answer
the second value is ten times higher then the refference one
Hope it helped u if yes mark me BRAINLIEST!
Tysm!
Answer:
2 in 32000 is in the thousands place
2 in 26000 is in the ten thousands place
Step-by-step explanation:
help really quick .
Answer:2y
Step-by-step explanation:
!!!
Answer:
Answer: h(x) = 1/5x
Step-by-step explanation:
6x + y = 4x + 11y
-y -y
6x = 4x + 10y
-4x -4x
2x = 10y
÷10 ÷10
1/5x = y
Since "y" represents h(x), then h(x) =
please help :) Write the number shown in standard notation. 5.29 x 10 to the 4th power A. 52,900 B. 5,290,000 C. 5,290 D. 529,000
Answer: Hi!
The equation given is 5.29 * 10^4.
First, we need to solve the exponent.
10^4 = 10,000
Next, we multiply 10,000 by 5.29.
10,000 * 5.29 = 52,900
Therefore, your answer is a), 52,900.
Hope this helps!
Answer:
A.
Step-by-step explanation:
It is 5.29 x 10,000
= 52,900.
solve for x in 3( x+ 2)=2(x+2)
Answer:
-2
Step-by-step explanation:
3( x+ 2)=2(x+2)
=>3x+6=2x+4
=>3x-2x=4-6
=>x=-2
-2 is the value of x
Answer:
The answer is
x = - 2Step-by-step explanation:
3( x+ 2)=2(x+2)
First expand the terms in the bracket
That's
3x + 6 = 2x + 4
Group like terms
Send the constants to the right side of the equation and those with variables to the left side
3x - 2x = 4 - 6
Simplify
We have the final answer as
x = - 2Hope this helps you
what type OK f number is -0.5/-0.5
Determine the slope of a line given points, (-5, 8) and (-8,5).
Answer:
1
Step-by-step explanation:
We can use the slope formula
m = (y2-y1)/(x2-x1)
= (5-8)/(-8 - -5)
= -3/(-8+5)
= -3/-3
= 1
Erik and Caleb were trying to solve the equation: 0=(3x+2)(x-4) Erik said, "The right-hand side is factored, so I'll use the zero product property." Caleb said, "I'll multiply (3x+2)(x-4) and rewrite the equation as 0=3x^2-10x-8 Then I'll use the quadratic formula with a=3, b=-10, and c=-8. Whose solution strategy would work? A) Erik B) Caleb C) Both D) Neither
Answer:
C) Both
Step-by-step explanation:
The given equation is:
[tex]0=(3x+2)(x-4)[/tex]
To solve the given equation, we can use the Zero Product Property according to which if the product A.B = 0, then either A = 0 OR B = 0.
Using this property:
[tex](3x+2) = 0 \Rightarrow \bold{x = -\frac{2}{3}}\\(x-4) = 0 \Rightarrow \bold{x = 4}[/tex]
So, Erik's solution strategy would work.
Now, let us discuss about Caleb's solution strategy:
Multiply [tex](3x+2)(x-4)[/tex] i.e. [tex]3x^2-12x+2x-8[/tex] = [tex]3x^2-10x-8[/tex]
So, the equation becomes:
[tex]0=3x^2-10x-8[/tex]
Comparing this equation to standard quadratic equation:
[tex]ax^2+bx+c=0[/tex]
a = 3, b = -10, c = -8
So, this can be solved using the quadratic formula.
[tex]x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]
[tex]x=\dfrac{-(-10)\pm\sqrt{(-10)^2-4\times3 \times (-8)}}{2\times 3}\\x=\dfrac{-(-10)\pm\sqrt{196}}{6}\\x=\dfrac{10\pm14}{6} \\\Rightarrow x= 4, -\dfrac{2}{3}[/tex]
The answer is same from both the approaches.
So, the correct answer is:
C) Both
Answer:
Both
Step-by-step explanation:
The length of a rectangle is five inches more than four times it’s width if the perimeter of the rectangle is 90 inches , find it’s dimensions
Answer:
length = 37 incheswidth = 8 inchesStep-by-step explanation:
Perimeter of a rectangle = 2l + 2w
where
l is the length
w is the width
From the question
Perimeter = 90 inches
The statement
The length of a rectangle is five inches more than four times it’s width is written as
l = 5 + 4w
Substitute this expression into the above formula and solve for the width
That's
90 = 2(5 + 4w) + 2w
90 = 10 + 8w + 2w
10w = 90 - 10
10w = 80
Divide both sides by 10
w = 8
Substitute this value into l = 5 + 4w
That's
l = 5 + 4(8)
l = 5 + 32
l = 37
Therefore we have
length = 37 incheswidth = 8 inchesHope this helps you
X is all the following except
a term
a variable
a constant
an expression
Answer: a constant
Step-by-step explanation:
A constant is a numerical expression like 2, 0,78 etc .
A variable is a alphabetical expression that vary like a,b,c,d,x,y,z.
An expression can consists of both numerical and alphabets and also any arithmetic expression like x, 2abc, 6a+2c etc
A term consist of either numbers and variables multiplied together or only numbers or variable like 2xy, x, 2ab etc.
X is all (a term, a variable , an expression) except a constant because a constant is a numerical expression.
Answer: D, a constant
Step-by-step explanation: A constant is an expression without variables.
find the equation of a parabola that has a vertex (3,5) and passes through the point (1,13)
Answer:
y = 2( x-3)^2 +5
Step-by-step explanation:
The vertex form of a parabolic functions is
y = a( x-h)^2 +k
where (h,k) is the vertex
y = a( x-3)^2 +5
Substituting the point into the equation
13 = a( 1-3)^2 +5
13 = a*( -2)^2 +5
13 = 4a +5
Subtract 5
8 = 4a
Divide by 4
8/4 =a
2=a
y = 2( x-3)^2 +5
Which of the following options best represents the modulus of the fifth roots of √5 + 2i?
[tex]\sqrt[5]{3}[/tex]
[tex]\sqrt[3]{5}[/tex]
[tex]\sqrt[5]{2}[/tex]
[tex]\sqrt[5]{5}[/tex]
Answer:
the answer should be c
you move the 5 to the radical then put the 2 i under it then get rid of the i
Step-by-step explanation:
Hi can u please help will mark brainliest
Answer:
$-48
Step-by-step explanation:
(-125 + -86 +54 +-35)/4 = -48
Add all the Profits/losses and divide by the number of weeks.
Write the equation in slope intercept form: passing through the x-axis at x=3 and passing through the y-axis at y= -5
Answer:
[tex]y=\frac{5}{3}x-5[/tex]
Step-by-step explanation:
Slope-intercept:
[tex]y=mx+b[/tex]
m is the slope and b is the y-intercept. We know that the line passes through the y-axis at -5, so this is the y-intercept (where x is equal to 0). Insert this into the equation:
[tex]y=mx-5[/tex]
With the given information, we can form two points:
[tex](3,0)(0,-5)[/tex]
The first one is the x-intercept and the second the y-intercept. Use these to find the slope:
[tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}=\frac{rise}{run}[/tex]
Rise over run is the change in the y-axis over the change in the x-axis, otherwise known as the slope. Insert the appropriate values:
[tex](3_{x1},0_{y1})\\(0_{x2},-5_{y2})\\\\\frac{-5-0}{0-3}[/tex]
Solve:
[tex]\frac{-5-0}{0-3}=\frac{-5}{-3}[/tex]
Note that both the numerator and denominator are negatives. Two negatives make a positive, so:
[tex]\frac{5}{3}[/tex]
The slope is [tex]\frac{5}{3}[/tex]
Insert into the equation:
[tex]y=\frac{5}{3}x-5[/tex]
:Done