Evaluate 14(7) -d 2f when d = 2 and f = 4
Step-by-step explanation:
98 - 3 * 2 * 4 equal to 9 - 2 * 840 + 9 - 6 equal to -7
The evaluation of 14(7) -d 2f when d = 2 and f = 4 is 82.
What is an equation?Two algebraic expressions having the same value and symbol '=' in between are called an equation.
Given:
An expression,
14(7) -d 2f.
To find the value of the expression:
Substitute the given value of d and f.
When d = 2 and f = 4,
the equation is,
14(7) -(2)2(4)
= (14 x 7) - ( 2 x 2 x 4)
= 98 - 16
= 82
The evaluation of the equation when d = 2 and f = 4 is 82.
Therefore, the solution is 82.
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Amina can read 35 pages in
0.5 hours. How many pages
will she read in 2.25 hours?
Answer: Should be 157.5 pages / 2.25 hours
Step-by-step explanation:
PLEASE HELP FOR BRAINLIESTTT.
A medical equipment industry manufactures X-ray machines. The unit cost C (the cost in dollars to make each X-ray machine) depends on the number of machines made. If x machines are made, then the unit cost is given by the function [tex]C(x)= 1.1x^2-638x+103,259[/tex]. What is the minimum unit cost?
Do not round your answer.
Answer:
Answer:
Minimum Unit Cost = $14,362
Minimum Unit Cost = $14,0362
The Jones family was one of the first to come to the U.S. They had 7 children. Assuming that the probability of a child being a girl is .5, find the probability that the Jones family had:
Answer:
Probability of at least 4 girls
= P(X >= 4)
= P(X=4) + P(X=5) + P(X=6)
= .2734 + .1641 + .0547 + .0078
= .5
Step-by-step explanation:
hope this helps.
Ashley painted 1/2 of her bathroom ceiling. Alex painted 1/4 of the ceiling in the school library. Who painted the larger fraction of their ceiling? (USE A PICTURE TO DEMONSTARTE YOUR ANSWERS).
Answer:
you can not solve this question
Step-by-step explanation:
you don't know how big a cieling is
for example:
Select the point on the number line located at -3/4
Answer:
that one before -1
Step-by-step explanation:
Fill in the sentence below with the description that most specifically applies to the quadrilateral below.
Answer:
Square, because the lengths are the same number and the area will never change no matter which two sides you use.
The answer to the given problem can be stated as, "The quadrilateral is most specifically a square because all of its sides are equal and angles are right angle."
What is a square?A square is type of rectangle of which all sides are equal.
The diagonals of a square are perpendicular bisector of each other.
The given diagram of the quadrilateral clearly shows the following information,
All the angles of the quadrilateral are equal to right angle,
And, all of its sides are equal.
The given information matches with the property of a square which implies that the given quadrilateral is a square.
Hence, the given quadrilateral is a square.
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In 2010, the population of a city was 108,000. From 2010 to 2015, the
population grew by 7.7%. From 2015 to 2020, it fell by 6.1%. To the nearest
100 people, what was the population in 2020?
Answer:
109,200 people
Step-by-step explanation:
First change all the percentages into decimals. Then multiply 108,000 by 1.077, because it is 7.7% of the population, while also including the original population. The product of this is 116,316. Then, if you want to find the percent decrease, it would be something out of 100, so 100-6.1=93.9. Changing that into decimal form, 0.939, and multiplying it by 116,316, you get 109,220, which rounds to 109,200.
Answer:
109200
Step-by-step explanation:
How does the diagram show that x + 4 has the same value as 17
Step-by-step explanation:
We can tell that x + 4 has the value of 17 by visualization.
[tex]\boxed{ \: \: \: \: \: \: x \: \: \: \: \: \: }\boxed{4}[/tex]
x is larger in length, we can identify that x has the value of 13 when 17 and 4 subtract.
What is the solution set of x/4 less than or equal to 9/x
Answer: x≤-6 or 0<x≤6.Option D.
Step-by-step explanation:
Given:
Subtract from both sides,
0
Simplifying by taking common denominator:
0
Factoring numerator:
0
Computing the signs and selecting that one satisfies ≤ 0:
x≤ -6,0<x≤6.
Option D is the right answer.
aaaaaaa help!! just tell me where the things go pls <3
Answer:
2x then 15x then 10
Step-by-step explanation:
Answer:
variables are: (x,y)
Step-by-step explanation:
and I am sorry that is all I know
Which of the following graphs represents the equation y + 2 = 3(x - 1)?
Answer:
The graph I put is what should match!
Step-by-step explanation:
what is the population variance for 138, 151, 169, 142, 176, 155, 132, 177
Answer:
265.50000
Step-by-step explanation:
Challenge Tim paints ornaments for a school
play. Each ornament is as shown and is made up
of two identical cones. He uses one bottle of
paint to paint 150 in.2. How many bottles of paint
does he need in order to paint 60 ornaments?
Use 3.14 for t.
98 in
24 in
The fire in Atlanta
The surface area of one ornament is about ?inches squared
Answer:
183.9 square inches74 bottles of paintStep-by-step explanation:
The surface area of one ornament is twice the area of a cone with radius 2.4 inches and slant height 9.8 inches. The number of bottles of paint required will be found by dividing the total area to be painted by the area covered by one bottle.
__
The area formula for a cone is ...
A = πr(r +s) . . . . . radius r, slant height s
The area of the double cone ornament will be ...
A = 2(3.14)(2.4 in)(2.4 +9.8 in) = 183.8784 in²
The surface area of one ornament is about 183.9 square inches.
__
The surface area of 60 ornaments is ...
60 × 183.8784 in² = 11,032.704 in²
The number of bottles of paint required is ...
11,032.704 in²/(150 in²/bottle) = 73.55136 bottles
Tim will need 74 bottles of paint for 60 ornaments.
Joseph is planting a veggie Garden he plants two tamaotos for every 5 peppers. Of Joseph plants 14 tomatos how many pepers does he plant
Answer:
The answer is 35 plants.
Step-by-step explanation:
The ratio of tomato plant to that of pepper plant = 2:5
Let x be the number of pepper plants for 14 tomato plants.
Now, according to the question:
2:5 = 14:x
14×5 = 2x
x = 70/2 = 35 plants.
Answer:
35 peppers
Step-by-step explanation:
Use cross multiplication
2 tomatoes/5 peppers = 14 tomatoes/x peppers
x peppers = (5*14) / 2 = 35
Part C
Write an equation showing the relationship between the number of baskets (b) made from outside the three-point line and the
number of points scored (p).
The equation that shows the relationship between the number of baskets (b) made from outside the three-point line and the number of points scored (p) is p = 3b
In basket ball, If a shot is successfully scored from outside of the three-point line, three points are awarded.
The variables are b and p.
where
p = number of points scored
b = number of basket made outside the three point line.
What is Variables?Variables are numbers represented with letters in a mathematical expression.
Therefore, the equation that shows the relationship between the number of baskets (b) made from outside the three-point line and the number of points scored (p) is as follows:
p = 3blearn more on equation here: https://brainly.com/question/23663066
Answer:
P = 3b
Step-by-step explanation:
Which function grows faster?
Twelve bacteria are placed into a petri dish. The
number of bacteria doubles every thirty minutes.
or
y = 8x + 29
Determine if true:
3x12+12=48
Answer:
True
Step-by-step explanation:
3x12=36
3x12=3636+12=48
3x12=3636+12=4848=48
Hecne, the equation is true.
Answer: The left side 48 is equal to the right side 48. So this means that 3 × 12 + 12=48 is TRUE!
Step-by-step explanation:
Susan bought a 2-kilogram bag of grapes.On the way home,she ate 125 grams of the grapes.How many grams of grapes did Susan have left?
Answer:
2 kilograms =2000grams
2000grams - 125grams =1875grams
1875grams of grapes did Susan have left
What is the area of this triangle ?
Answer:
8
Step-by-step explanation:
The formula for aera of a triangle is Square =1/2*base*height.
In the picture, the base of the triangle is 4, and the height of the triangle is 4, too.
Then we use the formula, the square of the triangle is 1/2*4*4=8
En la misma papelería, a Julián le cobraron $40 por 4 lápices y 8 plumas, mientras que a Estefanía le cobraron $25 por 6 lápices y 2 plumas. ¿Cuántos pesos costó cada pluma?
The cost of a pen is $3.5 while the cost of a pencil is $7
Simultaneous equationLet the price of pen be x
Let the price of pencil be y
If Julian was charged $40 for 4 pencils and 8 pens, then;
4y + 8x = 40
y + 2x = 10
y = 10 - 2x .............. 1
Similarly, if Estefania was charged $25 for 6 pencils and 2 pens, then;
6y + 2x = 25
Substitute 1 into 2 to have:
6(10-2x)+ 2x = 25
60 - 12x + 2x = 25
60-10x = 25
10x = 35
x = 3.5
Since y = 10 - 2x
y = 10 - 7
y = 3
Hence the cost of a pen is $3.5 while the cost of a pencil is $7
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Factor the greatest common factor (GCF) from each polynomial. 2x^4 +8x^3+2x
Answer:
2x(x^3+4x^2+1)
Step-by-step explanation:
Answer:
2x(x³ + 4x² + 1)
Step-by-step explanation:
The coefficients are 2, 8, 2.
The GCF of the coefficients is 2
The variable parts are x^4, x^3, x
The GCF of the variable parts is x
The GCF of the entire polynomial is 2x
Now we factor out 2x:
2x^4 + 8x^3 + 2x = 2x(x³ + 4x² + 1)
What is the value of 2y + 3 when y +4 ?
Answer:
substitute y = 4 into the expression⇒(2×4)+3=8+3=11
Step-by-step explanation:
Look at the image. (calculus)
=============================================
Explanation:
Recall that the pythagorean trig identity is [tex]\sin^2 x + \cos^2x = 1[/tex]
If we were to isolate sine, then,
[tex]\sin^2 x + \cos^2x = 1\\\\\sin^2 x = 1-\cos^2x\\\\\sin x = \sqrt{1-\cos^2x}\\\\[/tex]
We don't have to worry about the plus minus because sine is positive when 0 < x < pi/2.
Through similar calculations, [tex]\cos x = \sqrt{1-\sin^2x}\\\\[/tex]
Cosine is also positive in this quadrant.
-------------
So,
[tex]\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}\\\\\frac{\sin x}{\sin x}+\frac{\cos x}{\cos x}\\\\1+1\\\\2[/tex]
Therefore,
[tex]\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}=2[/tex]
is an identity as long as 0 < x < pi/2
Answer:
2
Step-by-step explanation:
[tex]=\frac{\sqrt{1-cos^{2}x }}{sinx} +\frac{\sqrt{1-sin^{2}x } }{cosx} \\\\When \:0 < x < \frac{\pi }{2} \\\\=\frac{\sqrt{sin^{2}x } }{sinx} +\frac{\sqrt{cos^{2}x } }{cosx} \\\\=\frac{sinx}{sinx} +\frac{cosx}{cosx} \\\\=1+1\\\\=2[/tex]
Here we use the formula sin²x=1-cos²x and cos²x=1-sin²x.
Pls help I’m confused
Answer:
3 3/8= 8×3+3=27/8
ans:27/8
2 4/1=4×2+1=9/4
ans:9/4
9 2/3=9×3+2=29/3
ans:29/3
please help me please
Answer:
g(x) has the greater value when x = 2, g(2) is 7 greater than f(2)
Step-by-step explanation:
From the graph, f(2) = 1
g(2) = 0.5(4)² = 8
So g(x) has the greater value when x = 2, g(2) is 7 greater than f(2)
Please answer the question in the picture
Will mark brainliest
A grid shows the positions of a subway stop and your house. The subway stop is located at (0,-1), and your house is located at (-7,-4). What is the distance, to the nearest unit, between your house and the subway stop?
Answer:
Distance between (-7, 8) and (6, 4)
= √ [ (4-8)^2 + (6-(-7))^2 ]
= √ [ (-4)^2 + (13)^2 ]
= √ [ 16 + 169 ]
= √ [ 185 ]
= 13.60
which is 14 units
Step-by-step explanation:
Brainiest?
.ok so I don't get it
Answer:
5280 feet
Step-by-step explanation:
Answer:
how many feet is a mile its 5280 feet
Step-by-step explanation:
Determine the solution for the polynomial:
14x^2 + 60x = -2(5x^2 + 3x - 9)