Answer: the students are smarter than she thinks
Step-by-step explanation:
more people passed
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:
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.
.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:
explain it i’m so confused
Answer: 2.4A because of the wire length
What additional information is needed to prove the triangles are congruent by the SAS postulate
Answer:
Step-by-step explanation:
The additional information needed to prove the triangles are congruent by the SAS postulate:
If two sides of one triangle are proportional to two sides of another triangle and the included angles are congruent, then the triangles are congruent.
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
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.
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:
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:
Matt has $39.25 to spend on drum classes. Each
class costs $9 plus a one-time registration fee of
$3.25. Let the variable y represent the number of
classes. Write an equation that represents the
number of classes Matt can attend for $39.25?
Answer:
The equation is, y = 9x + 3.25 and spending $39.25 will give him 4 classes.
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:
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.
Determine the solution for the polynomial:
14x^2 + 60x = -2(5x^2 + 3x - 9)
Which function grows faster?
Twelve bacteria are placed into a petri dish. The
number of bacteria doubles every thirty minutes.
or
y = 8x + 29
Please answer the question in the picture
Will mark brainliest
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
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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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
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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what is the population variance for 138, 151, 169, 142, 176, 155, 132, 177
Answer:
265.50000
Step-by-step explanation:
Can someone please help me?
Answer:452.38934211693
Step-by-step explanation:
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)
5. Dana had $700. She spent 1/2 of her money on car note and 1/4 of the remainder on car
insurance. How much money is left with her?
Answer:
the answer is 87.5.
Step-by-step explanation:
If you divide 700 by 2 it equals 350. Then when you multiply 350*0.25, 87.5 or 87 1/2 is your answer
What time does the first train get to oakengates
Answer:
a) 0815
b) 22 minutes
Hope this helps!
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.
Select the point on the number line located at -3/4
Answer:
that one before -1
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 numbers 1, 2, 3, 4, 5, 6 are written on identical cards and placed in a bag. A card is selected at
random from the bag. Let A be the event "əb even number is chosen: and let B be the event "a square
number is chosen." Are events A and B independent?
Yes
No
Answer:
yes yes yes yes yes yes yes
No, events A and B are not independent.
How are events A and B not independent?Given:
The numbers 1, 2, 3, 4, 5, and 6 are written on identical cards and placed in a bag.A card is selected at random from the bag.Let A be the event that an even number is chosenLet B be the event that a square is chosen.Find:
Are events A and B independent?Solution:
As per the question;
Event A will be having 2, 4 and 6
Event B will be having 2 and 4
So, from above we can see that B is dependent on A.
Therefore, Yes events A and B are not independent.
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aisha estimates the product of 12 and 2.4 by round in 2.4 to the nearest whole
what is aishas estimate?
what is the product of 12 and 2.4
i will give brainiest
Answer:
I'm pretty sure this is the answer its 24 or 30
Step-by-step explanation:
Because first what you would do is round 2.4 to 2 then multiply it by 12 to get 24 if its not 24 it would be 28.8 then you round 28.8 to 30. Hope that helped! :)
A guitar effects pedal enthusiast is going to a gear convention where people sometimes break out their own custom pedals to show off or trade. She has 5 different pedals she's thinking about packing with her, but she's not sure whether she should bring all of them, some of them, or none of them. How many different ways are there for her to decide whether and how many pedals to pack? Use subsets to help you figure this out, and write your answer as a whole number.
There are 32 different combinations that she can select out of the 5 pedals.
How many different combinations there are?
We want to get the total number of different combinations that we can make with 5 different pedals.
Remember that for a set of N elements, the number of different sets of K elements that we can make is:
[tex]C(N, K)=\frac{N!}{(N - K)!*K!}[/tex]
In this case, the total number of different combinations that we can make with the 5 pedals is given by:
C = C(5, 0) + C(5, 1) + C(5, 2) + C(5, 3) + C(5, 4) + C(5, 5).
Let's calculate each one of these:
[tex]C(5, 0) = \frac{5!}{(5 - 0)!*0!} = \frac{5!}{5!} = 1\\\\C(5, 1) = \frac{5!}{(5 - 1)!*1!} = \frac{5!}{4!} = 5\\\\C(5, 2) = \frac{5!}{(5 - 2)!*2!} = \frac{5!}{3!*2!} = \frac{5*4}{2} = 10\\\\C(5, 3)= \frac{5!}{(5 - 3)!*3!} = \frac{5!}{3!*2!} = \frac{5*4}{2} = 10\\\\\\C(5, 4) = \frac{5!}{(5 - 4)!*4!} = \frac{5!}{4!} = 5\\\\C(5, 5) = \frac{5!}{(5 - 5)!*5!} = 1[/tex]
So the total number of different combinations is:
C = 1 + 5 + 10 + 10 + 5 + 1 = 32
If you want to learn more about combinations, you can read:
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