Answer:
a = - 7
Step-by-step explanation:
Given
4a - 9 = 7a + 12 ( subtract 7a from both sides )
- 3a - 9 = 12 ( add 9 to both sides )
- 3a = 21 ( divide both sides by - 3 )
a = - 7
Answer:
a = -7
Step-by-step explanation:
What's the 10th term of y= 10x - 2. This is math 1 freshman math arithmetic sequence
Answer:17 is your answer
Answer:
17
Step-by-step explanation:
Write a quadratic equation in standard form with intergral coefficeints that has the roots 4 and -5.
Answer:
[tex]the \: quadratic \: equation \: is \to \: \\ \boxed{{x}^{2} + \: x \: -20 = 0}.[/tex]
Step-by-step explanation:
[tex]the \: general \: sandard \: form \: is \: given \: by : \\ ax {}^{2} + bx + c = 0 \to \\ since \: the \: roots \: are : \\ 4 \: and \: - 5 \\ we \: apply \: the \: rule \to \\ {x}^{2} - ( \alpha + \beta )x \: + \alpha \beta = 0 \\ therefore \: \to \\ {x}^{2} - ( 4+ ( - 5) )x \: + 4( - 5) = 0 \\ {x}^{2} + \: x \: -20 = 0.[/tex]
♨Rage♨
it takes adrian 12 min to swim 4 laps.How many hours will it take him to swim 50 laps?
Answer:
150 minutes
Step-by-step explanation:
SHOW WORK: Evaluate g(5) with g(x)=20/x
Answer:
4
Step-by-step explanation:
g(5)=20/5
g(5)=4
To qualify for a police academy, applicants are given a test of physical fitness
Please help!!
Mrs. Peterson makes ceramic figurines. She recently made 25 figurines. Of those figurines, 16 are animals. What percent of the figurines are NOT animals?
Answer:
Depends on how many digits the question wants. If rounded, 38%. Or just 37%
Step-by-step explanation:
She made 25 in all.
16 of them are animal figures. The question is asking what percent is NOT animal figure, so we need to subtract 25 by 16. That gives us 9. To find the percent, we need to divide 9 by the whole, which is 24. 9/24=0.375
The answer is 37% or 37.5% (It depends on how many digits the question is asking for. Also try rounding (38%).
Answer:
B-
Step-by-step explanation:
Bacon egg and cheeseeeeeeee
need help asap!!! if you could please give me the answer
Answer:
x = 20
Step-by-step explanation:
x-10 / x = 1/2
2*(x-10) = x
2x - 20 = x
x = 20
An accountant charges an initial fee of $100 plus a rate of $40 per hour. The function that shows the total fees charged is f(x) = 40x + 100 How many hours did the accountant work if they charged $580?
Answer:12
Step-by-step explanation:The accountant worked 12 hours
what is 6 divided by 3/5
Answer:
10
brainliest plz? tysm
Hi! I believe your answer is 10. I hope this helps you! Good luck and have a great day. ❤️ (Thank you for the free points, by the way! :))
PLEASE HELP
solve x^3= 1/8
Answer:
x=1/2
Step-by-step explanation:
If f(x) = 5x, what is y(x)?
1. F^1(x)=-5x 2. F^1(x)=-1/5x 3. F-1(x)1/5x 4. F-1(x)=5x
Answer:
f^-1 (x) = x/5
Step-by-step explanation:
f(x) = 5x
Replace f(x) with y
y= 5x
Exchange x and y
x = 5y
Solve for y
Divide each side by 5
x/5 = 5y/5
x/5 = y
The inverse is x/5
Please help I will put brainliest
Answer:
=−3125x^10y^25
Step-by-step explanation:
A total of $72,000 is to be invested, some in bonds and some in certificates of deposit (CDs). If the amount invested in bonds is to exceed that in CDs by $9,000, how much will be invested
in each type of investment?
El profesor Ricardo consiguió para una comunidad de 48 familia un tanquero con 800 litros con agua y otro tanquero con 430 litro con agua ¿cuantos litros de agua cada familia ?¿crees que sobre agua ?
Answer:
25.625 litros de agua por familia.
No sobrará agua.
Step-by-step explanation:
En promedio el ser humano tiene que tomar al menos 3 litros de agua al día, con esto en mente y pensando que tienes 48 familias de las cuales en promedio serían 5 personas que conforman cada familia, tendrías que son en total:
48*5=240 personas
Tienes que tener almenos 3 litros de agua para cada persona:
240*3=720
Tienes en total 1230 litros de agua, sólo para cubrir lo que las personas necesitan tomar de agua son 720, falta ver si tienen que lavar, cocinar, limpiar o bañarse, entonces con los 1230 litros conseguidos, no alcanzaría ni para dos días de sólo tomar agua.
C. If the apothem of a regular polygon is represented by a and the length of one side of
the polygon is represented by /, then what would be the area of one of the smaller
triangles that the shape is dissected into?
Answer:
a regular polygon is a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length). Regular polygons may be either convex or star. In the limit, a sequence of regular polygons with an increasing number of sides approximates a circle, if the perimeter or area
Step-by-step explanation:
The area of one of the smaller triangles that the shape is dissected into is al/4.
What is a cube?It is a polygon having six faces.
The volume of a cube is side³.
We have,
The apothem of a regular polygon is given below.
From the figure,
The side length will be l.
The apothem will be a.
Now,
The area of the smaller triangle.
Base = l/2
Height = apothem = a
= 1/2 x base x height
= 1/2 x l/2 x a
= al/4
Thus,
The area of the smaller triangle is al/4.
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Given a standard normal distribution, find the area under the curve that lies (a) to the left of z = −1.39; (b) to the right of z = 1.96; (c) between z = −2.16 and z = −0.65; (d) to the left of z = 1.43; (e) to the right of z = −0.89; (f) between z = −0.48 and z = 1.74.
Complete Question
Given a standard normal distribution, find the area under the curve that lies
(a) to the left of z = −1.39;
(b) to the right of z = 1.96;
(c) between z = −2.16 and z = −0.65;
(d) to the left of z = 1.43;
(e) to the right of z = −0.89;
(f) between z = −0.48 and z = 1.74.
Answer:
a
[tex]P(Z < -1.39) = 0.082264[/tex]
b
[tex]P(Z > 1.96) = 0.025[/tex]
c
[tex]P(-2.16 < Z < -0.65 ) =0.2457[/tex]
d
[tex]P(Z < 1.43) = 0.92364[/tex]
e
[tex]P(Z > -0.48) = 0.68439[/tex]
f
[tex]P(-0.48 < Z < 1.74 ) =0.6435[/tex]
Step-by-step explanation:
Considering a
From the question we are told that
The z-score is z = -1.39
Generally from the z table the area under the curve that lies to the left of z = -1.39 is
[tex]P(Z < -1.39) = 0.082264[/tex]
Considering b
From the question we are told that
The z-score is z = 1.96
Generally from the z table the area under the curve that lies to the right of z = 1.96 is
[tex]P(Z > 1.96) = 0.025[/tex]
Considering c
From the question we are told that
The z-score is z = −2.16 and z = −0.65
Generally from the z table the area under the curve that lies between z = −2.16 and z = −0.65;
[tex]P(-2.16 < Z < -0.65 ) = P(Z < -0.64 ) - P( Z < -2.16)[/tex]
From the z table the area under (Z < -0.64 ) and ( Z < -2.16) is
[tex]P(Z < -0.64 ) = 0.26109[/tex]
and
[tex]P( Z < -2.16) = 0.015386[/tex]
So
[tex]P(-2.16 < Z < -0.65 ) =0.26109- 0.015386[/tex]
=> [tex]P(-2.16 < Z < -0.65 ) =0.2457[/tex]
Considering d
From the question we are told that
The z-score is z = 1.45
Generally from the z table the area under the curve that lies to the left of z = 1.43 is
[tex]P(Z < 1.43) = 0.92364[/tex]
Considering e
From the question we are told that
The z-score is z = -0.48
Generally from the z table the area under the curve that lies to the right of z = 0.48 is
[tex]P(Z > -0.48) = 0.68439[/tex]
Considering f
From the question we are told that
The z-score is z = −0.48 and z = 1.74
Generally from the z table the area under the curve that lies between z = −2.16 and z = −0.65;
[tex]P(-0.48 < Z < 1.74 ) = P(Z < 1.74 ) - P( Z < -0.48)[/tex]
From the z table the area under (Z < 1.74 ) and ( Z < -0.48) is
[tex]P(Z < 1.74 ) = 0.95907[/tex]
and
[tex]P( Z < -0.48 ) = 0.31561[/tex]
So
[tex]P(-0.48 < Z < 1.74 ) = 0.95907 - 0.31561[/tex]
=> [tex]P(-0.48 < Z < 1.74 ) =0.6435[/tex]
The standard normal table shows the mathematical table which represent the value below a z-score in standard normal distribution. It is also known as z-table.
(a) The correct answer is 0.082264.
(b) The correct answer is 0.025
(c) The correct answer is 0.2457.
(d) The correct answer is 0.68439.
(e) The correct answer is 0.6435
Given:
(a)
The z-score is z = -1.39
Refer the z-table area under the curve that lies to the left of [tex]z=-1.39[/tex],
[tex]P(Z<-1.39)=0.082264[/tex]
(b)
.The z-score is z = 1.96
Refer the z-table area under the curve that lies to the right of [tex]z=1.96[/tex],
[tex]P(Z>1.96)=0.025[/tex]
(c)
The z-score is [tex]z = -2.16[/tex] and [tex]z=-0.65[/tex]
Refer the z-table area under the curve that lies between [tex]z = -2.16[/tex] and [tex]z=-0.65[/tex],
[tex]P(-2.16<Z<-0.65)=P(Z<-0.64)-P(Z<-2.16)[/tex]
Thus,
[tex]P(Z<-0.64)=0.26109\\P(Z<-2.16)=0.015386\\P(-2.16<Z<-0.65)=0.26109-0.015386\\P(-2.16<Z<-0.65)=0.2457[/tex]
(d)
The z-score is [tex]z =1.45[/tex]
Refer the z-table area under the curve that lies to the right [tex]z = 1.45[/tex],
[tex]P(Z<1.45)=0.92364[/tex]
(e)
The z-score is [tex]z = -0.48[/tex]
Refer the z-table area under the curve that lies to the right [tex]z = -0.48[/tex],
[tex]P(Z>-0.48)=0.68439[/tex]
(f)
The z-score is [tex]z =-0.48[/tex] and [tex]z = 1.74[/tex]
Refer the z-table area under the curve that lies between [tex]z =-0.48[/tex] and[tex]z = 1.74[/tex],
The z table the area under [tex](Z < 1.74 )[/tex] is,
[tex]P(Z<1.74)=0.95907[/tex]
The z table the area under [tex](Z < -0.48 )[/tex] is,
[tex]P(Z<-0.48)=0.31561[/tex]
Calculate the area under the curve that lies between [tex]z =-0.48[/tex] and[tex]z = 1.74[/tex],
[tex]P(-0.48<Z<1.74)=P(Z<1.74)-P(Z<-0.48)\\P(-0.48<Z<1.74)=0.95907-0.31561\\P(-0.48<Z<1.74)=0.6435[/tex]
Thus,
(a) The correct answer is 0.082264.
(b) The correct answer is 0.025
(c) The correct answer is 0.2457.
(d) The correct answer is 0.68439.
(e) The correct answer is 0.6435
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John had a 20 ounce bottle of water. He drank 12 ounces. What percent, p, is left in the bottle?
Answer:
40%
Step-by-step explanation:
Answer:
40%Step-by-step explanation:
Original Volume = 20 ounces
Remaining Volume = 20-12
= 8 ounces
Percentage :
[tex]\frac{8}{20}\times 100\\\\=\frac{800}{20} \\\\Simplify\\\\=40\%[/tex]
15 points if answered correctly
Answer:
y= 7156/317x -44488/317
Step-by-step explanation:
I put it in fraction form for you.
Deshawn has 850 pennies to put into 50 bags. He wants to put an equal number of pennies in each bag. He can use the expression below to find how many to put into each bag.
850/50
Which expression below could also be used to find the number of pennies in each bag?
Answer:
it can be 50x=850
x=850/50
x=17
What does credit worthiness mean
Answer:
are you worthy of credit :)
Step-by-step explanation:
What percent of 16 is 50% of 50% of 48?
Answer:
150
Step-by-step explanation:
x %* 16 = 50% * 48
[tex]\frac{x}{100} = \frac{0.5 *48}{16} = \frac{24}{16} = \frac{6}{4} = \frac{3}{2} \\x = \frac{300}{2} = 150\\[/tex]
I guessed 50% is typed wrongly twice so I solved once with 50%
75% of 16 is equal to 50% of 50% of 48.
Percentage of 16 equivalent to 50% of 50% of 48 to be evaluate.
Percentage is the matter of composition per unit whole composition.
Let x% of 16 = 50% of 50% of 48
x/100 *16 = 1/2*1/2*48
x/100*16 = 12
x = 12/16 * 100
x = 75%
Thus, 75% of 16 is equal to 50% of 50% of 48.
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Which equation is graphed here?
Answer:
Y=5 X=1 multiply them bother
Step-by-step explanation:
Olivia drove 883 miles from San Francisco to Seattle in 4 days she drove the same number of miles each day how many miles did Olivia drive each day
Answer:
She drove 220.75 miles each day.
Step-by-step explanation:
883÷4
Answer:
She drove 220.45 because you get that answer if you divide 883 by 4
A small jet can carry up to passengers and crew members. There is a weight restriction of pounds on board. The combined weight of each passenger (or crew member) and his luggage has a mean of pounds, with a standard deviation of pounds. What is the probability that the weight limit will be exceeded when there are exactly passengers and crew members on board? Carry your intermediate computations to at least four decimal places. Report your result to at least three decimal places.
Complete Question:
A small jet can carry up to 41 passengers and 3 crew members. There is a weight restriction of 9200 pounds on board. The combined weight of each passenger (or crew member) and his luggage has a mean of 197.9 pounds, with a standard deviation of 64.1 pounds. What is the probability that the weight limit will be exceeded when there are exactly 41 passengers and 3 crew members on board? Carry your intermediate computations to at least four decimal places. Report your result to at least three decimal places.
Answer:
The probability that the weight limit will be exceeded when there are exactly 41 passengers and 3 crew members on board is;
0.253
Step-by-step explanation:
a) Data and Calculations:
Capacity of the small jet = 41 passengers and 3 crew members = 44
Weight restriction = 9,200 pounds
Mean of the combined weight of passengers and crew = 8,707.6 (44 * 197.9) pounds
Weight's standard deviation = 2,802.4 (44 * 64.1) pounds
Excessive weight total = 11,528 (8,707.6 + 2,802.4)
Excess weight = Excessive weight total minus Total Weight Restriction
=2,328 (11,528 - 9,200)
Probability of exceeding weight limit = Excess weight/Weight restriction
= 2,328/9,200
= 0.253
A farmer decided to put a fence around his property that measures 170 feet long and 120 feet wide. What is the perimeter of his property?
Answer: 580
Step-by-step explanation:
A fence is usually a rectangle shape in these questions
Perimeter of a rectangle is P = 2l + 2w
P = 2(170) + 2(120) = 580
Help, I’ll give the brainliest to the first one who answers, solve for x
x-4/6 = x+2/12
f(x) = 2x3 + 3x2 – 7x + 2
g(x) = 2x – 5
Find (f + g)(x).
Answer:
(f + g)(x) = 2x³ + 3x² - 5x - 3 ⇒ B
Step-by-step explanation:
Let us solve the question
∵ f(x) = 2x³ + 3x² -7x + 2
∵ g(x) = 2x - 5
→ (f + g)(x) means add f(x) and g(x)
∴ (f + g)(x) = (2x³ + 3x² - 7x + 2) + (2x - 5)
→ Add the like terms
∵ (f + g)(x) = 2x³ + 3x² + (-7x + 2x) + (2 - 5)
∴ (f + g)(x) = 2x³ + 3x³ + (-5x) + (-3)
→ Remember that (+)(-) = (-)
∵ 2x³ + 3x³ + (-5x) + (-3) = 2x³ + 3x² - 5x - 3
∴ (f + g)(x) = 2x³ + 3x² - 5x - 3
HELP TIMED QUESTION!!plss
The quadratic function f(x)= x^2 has __
A. No zeros
B. Exactly one zero
C. Exactly two zeros
D. More than two zeros
Answer:
C. Exactly two zeros
Step-by-step explanation:
It makes a U and touches twice on the x-axis.
Leila’s class has a female student-to-male student ratio of 3:2. If Leila’s class has 18 girls, how many boys does she have?
WILL RECIEVE BRAINLIST
Athe answer is 12
Step-by-step explanation:
just divide 18 by 3 and then you get 6 and multiply 2 by 6 and you get 12 hope this helps
A flower vase has a volume of 1480 cubic centimeters (cm3). Use the fact
that 1 inch is equal to 2.54 cm to convert this volume to cubic inches (in).
Round your answer to the nearest tenth. Do not type the units in the space
below.
Answer:
The volume of the flower vase is 90.3 cubic inches.
Step-by-step explanation:
Dimensionally speaking, volume [tex][V][/tex] is equivalent to the product of length [tex][L][/tex], length [tex][L][/tex] and length [tex][L][/tex]. That is:
[tex][V] =[L]\times [L]\times [L][/tex]
In this case, an inch equals 2.54 centimeters and we proceed to convert the given volume of the flower vase as follows:
[tex]V = 1480\,cm^{3}\times \frac{1\,in\times 1\,in\times 1\,in}{2.54\,cm\times 2.54\,cm\times 2.54\,cm}[/tex]
[tex]V = 90.3\,in^{3}[/tex]
The volume of the flower vase is 90.3 cubic inches.