Evaluate 4b-a when a=12 and b=7
Answer:
4b - a = 15
Step-by-step explanation:
if you replace the variables with their equivalent counterparts you get the equation 4(7) - 12 = __ when you do the math make sure to do the parentheses first then subtract, just like in elementary school remember pemdas parentheses, exponents, multiplication, division, addition, subtraction. I hope this helps.
good luck:)
Brainliestttt Plssssssss:)
Answer:
4b - a = 15
Step-by-step explanation:
find the degree of the polynomial
Answer:
Step-by-step explanation:
1) 5a - 2b² + 1
Degree of the polynomial = 2
2) 4x²-3x³ + 2x + 12
-3x³ + 4x² + 2x + 12
Degree of the polynomial = 3
To find the degree of the polynomial, arrange it in descending as per the power of the variables.
The highest power of the variable is the degree of the polynomial.
9 cm 12 cm Which of the following equations could be used to find the area of the rhombus? What is the area of the rhombus?
Answer:
A = (9)(12)
Step-by-step explanation:
Helpppppp pleaseeeee
Answer:
x + 11
x = 6
6 + 11
17
Step-by-step explanation:
Answer: X+11=6+11=17 #5
Step-by-step explanation:
Hope this helps! Have a good day! :)
Which statement is true about the points shown on the number line? A number line from negative 8 to negative 3. Points are at negative 5.6 and negative 4.2. CLEAR CHECK −5.6<−4.2, and −5.6 is located to the left of −4.2. −5.6<−4.2, and −5.6 is located to the right of −4.2. −5.6>−4.2, and −5.6 is located to the left of −4.2. −5.6>−4.2, and −5.6 is located to the right of −4.2.
Answer:
−5.6<−4.2, and −5.6 is located to the left of −4.2
Step-by-step explanation:
Given the statements :
−5.6<−4.2, and −5.6 is located to the left of −4.2 (True) because - 5.6 located to the left of the number line and numbers are arranged from right to left in decreasing order.
−5.6<−4.2, and −5.6 is located to the right of −4.2. (Not true) only the first assertion is correct, - 5.6 < - 4.2, but 5.6 isn't located to the right of - 4.2
−5.6>−4.2, and −5.6 is located to the left of −4.2 (Not true) ; Though 5.6 is located to the left of 4 2, 5.6 is < 4.2
−5.6>−4.2, and −5.6 is located to the right of −4.2. (Not true) ; - 5.6 is < -4.2 and also located to the left of - 4.2
How does the cost of shirts compare to the cost of the magnets? *
The cost of the shirts is ____ times as much as the cost of magnets.
Answer:
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Step-by-step explanation:
Answer:
$0.95
Step-by-step explanation:
What is the function where it has a maximum point at (pi, 6) and a minimum point at (-3pi/4, 2). Find the function. Give an exact expression.
Answer:
f(x) = 2*cos(4*x) + 4
Step-by-step explanation:
This is obviusly a sinusoidal function, which can be written as:
f(x) = A*cos( w*x ) + M
Where:
A = amplitude
w = angular frequency
M = midline.
Remember that the maximum of a cosine
cos(x) = 1, when x = (2*n)*pi (for any integer n)
And the minimum is at:
cos(x) = -1, when x = (2*m + 1)*pi (for any integer m)
Whit this in mind, we know that we have a maximum when:
x = pi
then we want:
w*pi = (2*n)*pi
and a minimum at:
x = -3*pi/4
Then we want
w*(-3*pi/4) = (2*m + 1)*pi
In the minimum case, we have a "4" in the denominator that is kinda unfortunate, so we woud want to take w = 4 in order to remove it, and this will work really well for wath we want, because:
w*pi = 4*pi = (2*2)*pi (here we have n = 2)
w*(-3*pi/4) = 4*(-3*pi/4) = -3*pi = (2*-2 + 1)*pi (here we have m = -2)
Then we can take w = 4.
So the function is something like:
f(x) = A*cos(4*x) + M
The amplitude is equal to half of the difference between the maximum and the minimum values of y.
The maximum is:
y = 6
the minimum is:
y = 2
Half of the difference is:
A = (6 - 2)/2 = 2
A = 2
Then our function is:
f(x) = 2*cos(4*x) + M
The value of the midline is equal to the maximum minus the value of the amplitude (or the minimum plus the value of the amplitude)
M = Maximum - A = 6 - 2 = 4
M = Minimum + A = 2 + 2 = 4
Then the function is:
f(x) = 2*cos(4*x) + 4
Answer:
2cos (4/7x - 4pi/7) + 4
Step-by-step explanation:
divide 144 of in the ratio 2: 8: 6
Answer:
● First part = 2×x = 2x
● Second part= 8×x = 8x
● Third part= 6×x = 6x
Now,
2x+8x+6x = 144
or, 16x= 144
or, x=144/6
or, x=9
therefore, x=9
Which is the equation of the line with slope 3 and y-
intercept 5.
Answer:
y=3x+5
Step-by-step explanation:
Can someone help me find for x and y
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Triangles.
Since there is a linear pair with 40° , the another angle will be 140° ,
also the triangle newly formed is a isosceles one,
hence x = 20°
===> x = 20°
Now apply angle sum property of a triangle on, the other one,
we get as, 70+40+y=180
hence, y = 180-110
y = 70°
Hence angle y ==> 70°
NEED HELP ASAP
If the side lengths of a cube are 15 feet, what is the correct way to write the expression to represent the volume of the cube in exponential form?
15 ⋅ 15 ⋅ 15
15 ⋅ 3
3^15
15^3
What is the slope of the line described by the equation 4x + 6y = 12?
Answers:
-3/2
-2/3
2/3
3/2
11. The surface area of a triangular prism is 78 square inches. What is
the surface area of a similar prism that is three times as large?
A. 156 square inches
B. 234 square inches
C. 312 square inches
D. 702 square inches
Answer:
D. 702square inches
Step-by-step explanation:
1. V=78km^3
2. K=∛9
3. K^3=∛9^3
4.9 x 78=702
Rest of the Key for the test is here:
http://mrsaperez.weebly.com/uploads/1/1/0/5/110500127/t8_review_part_2_key.pdf
Halp meh please. Its a test and needs to be turned in at 3:25
Answer:
exact form- 61/8
mixed number form-7 5/8
?
Step-by-step explanation:
Answer:
Convert the mixed numbers to improper fractions, then find the LCD and combine.
Exact Form:
61 /8
Decimal Form:
7.625
Mixed Number Form:
7
5/8
Step-by-step explanation:
MATH!!!
if both cylinders have an identical base, and cylinder 1 has a height of 4 inches and a volume of 120 cubic inches, and cylinder 2 has a height of 7 inches, what is the volume of cylinder 2?
Answer:
210 Hope it helps! if you have any other questions I can help
Complete the statement. 15 kg = ____ g
Answer:
15000
Step-by-step explanation:
Answer:
15kg = 15,000 grams
Step-by-step explanation:
hope this helped if it did mark brainlest
and let me know
what’s the answer ??
Answer:
Step-by-step explanation:
radius r = 10/2 = 5 ft
height h = 5 ft
Volume = πr²h = π(5²)(5) = 125π ≈ 392.7 ft³
The determinant of the matrix
Answer:57
Step-by-step explanation:
(7 x 9) - (-3 x -2) = 57
The height of a can is 3 times its radius. If the radius of the can is 3 centimeters, what is the volume?
Answer:
170 [tex]cent.^{3}[/tex]
Step-by-step explanation:
If the height is 3 times the radius you can find that by: 3r
r = 3.
So: 3 x 3 = 9
The height is 9 centimeters
Volume of a cylinder (can):
[tex]V= 2\pi rh[/tex]
Plug in what we know
[tex]V = 2 \pi (3) (9)\\V = 54\pi \\V = 169.646\\[/tex]
Rounds to: 170
A trader sold a radio set for 72.00 making a profit of 8% .Find , correct to the nearest ghana cedis ,the cost price for the radio set .
Given:
The selling price of a ratio set = 72.00
Profit percent = 8%
To find:
The cost price for the radio set.
Solution:
Let x be the cost price for the radio set.
Radio set is sold at 8% profit.
[tex]\text{Selling price}=x+\dfrac{8}{100}x[/tex]
[tex]\text{Selling price}=x+0.08x[/tex]
[tex]\text{Selling price}=1.08x[/tex]
The selling price of a ratio set is 72.00.
[tex]72=1.08x[/tex]
[tex]\dfrac{72}{1.08}=x[/tex]
[tex]x=66.666...[/tex]
[tex]x\approx 67[/tex]
Therefore, the cost price for the radio set is 67.
Which set of numbers cannot represent the lengths of the sides of a triangle?
1) 7,5,6
2) 7,18,11
3) 6,8,11
4) 9,1219
Answer:
2) 7,18,11Step-by-step explanation:
Triangle inequality:
Sum of side lengths of any two sides must be greater than the third side
7 + 11 = 18, this is the only exceptionOption 2
Answer:
2) 7,18,11
Step-by-step explanation:
Because it is the "Correct Answer"
What is the measure of DCF?
E
D
75°
54°
F.
The measure of ZDCF is
degrees.
angle DCF = angle DCE + angle ECF
angle DCF = 75° + 54°
angle DCF = 129°
Measure of < DCF is [tex]129^{0}[/tex].
What is an angle?A figure which is formed by two rays or lines that shares a common endpoint is called an angle.
According to the figure
< DCE = [tex]75^{0}[/tex]
< ECF = [tex]54^{0}[/tex]
Measure of < DCF = < DCE + < ECF
= [tex]75^{0}[/tex] + [tex]54^{0}[/tex]
= [tex]129^{0}[/tex]
Hence, measure of < DCF is [tex]129^{0}[/tex].
Find out more information about angle here
https://brainly.com/question/7116550
#SPJ2
What is 5 divided by 1 1/2?
Answer:
3 and 1/3
Step-by-step explanation:
What is the rate he charges to mow?
OA. $1.50 per lawn
OB. $60.00 per lawn
OC. $15.00 per lawn
OD. $7.50 per lawn
Lily bought 11 3/4 metres of ribbon. Each metre costs $24.00. How much did Lily spend
Answer:
$282
Step-by-step explanation:
Need help ASAP please
The graph of the quadratic function y(x) in the ty plane is a parabola containing the points (9,8) and (-5,8). Which of the following points could be the vertex of the parabola?
(0,2)
(2,5)
(4,10)
(7,0)
Answer:
(2, 5) is the correct answer.
∠A and \ angle B∠B are complementary angles. If m\angle A=(x+8)^{\circ}∠A=(x+8) ∘ and m\angle B=(8x+1)^{\circ}∠B=(8x+1) ∘ , then find the measure of \angle A∠A.
Answer: [tex]17^{\circ}[/tex]
Step-by-step explanation:
Given
[tex]\angle A=(x+8)^{\circ}[/tex]
[tex]\angle B=(8x+1)^{\circ}[/tex]
Angle A and B are complementary i.e. sum of the two must be [tex]90^{\circ}[/tex]
[tex]\Rightarrow \angle A+\angle B=90^{\circ}\\\Rightarrow x+8+8x+1=90^{\circ}\\\Rightarrow 9x=90-9=81^{\circ}\\\Rightarrow x=9^{\circ}[/tex]
[tex]\therefore \angle A=x+8^{\circ}=9+8\\\Rightarrow \angle A=17^{\circ}[/tex]
A company makes a profit of $2 per software program and $3 per video game. The company can produce at most 40 software programs and at most 15 video games per week. Total production cannot exceed 48 items per week. How many items of each kind should be produced per week in order to maximize the profit?
Use linear programming to solve. Show all your work.
Answer:
reeg
Step-by-step explanation:
In ΔSTU, the measure of ∠U=90°, US = 7.3 feet, and ST = 9.8 feet. Find the measure of ∠S to the nearest tenth of a degree.
Answer:41.8
Step-by-step explanation:
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