Answer:
384 cubic inch
Step-by-step explanation:
Volume of rectangular prism
[tex] = 8 \times 4 \times 12 \\ = 384 \: {in}^{3} [/tex]
Please anyone help me
Answer:
-52
Step-by-step explanation:
plug 2 into u(x) which is equal to
2(5) + 1= 5
plug 5 into w(x) which is equal to
-2(5^2) - 2
-2(25) - 2
-50 - 2 = -52
If the diameter of a circle is 50 yards, the radius is what
Answer:
25 yards
Step-by-step explanation:
radius is half of what the diameter is.
50 / 2 = 25
Answer:
radius is 25
Step-by-step explanation:
hope this helps
if so please mark brainlist
thx
Three types of tickets for a football game are available: sidelines, goal-view, and upper-deck. The sidelines tickets cost $25 more than the goal-view tickets and $50 more than the upper deck tickets. The goal-view tickets cost $13 less than twice the cost of the upper-deck tickets. Determine the price of each type of ticket.
Answer:
Upper deck = $38
Goal View = $63
Sidelines = $88
Step-by-step explanation:
Represent
- Sidelines with S
- Goal-view with G
- Upper-deck with U
We have that:
[tex]S = 25 + G[/tex]
[tex]S = 50 + U[/tex]
[tex]G = 2U - 13[/tex]
Required
Solve for S, G and U
Substitute 25 + G for S in the second equation
[tex]25 + G = 50 + U[/tex]
Make G the subject
[tex]G = 50 -25+ U[/tex]
[tex]G = 25+ U[/tex]
Substitute 25 + U for G in the third equation
[tex]25 + U = 2U - 13[/tex]
Collect Like Terms
[tex]U - 2U = -13 - 25[/tex]
[tex]-U = -38[/tex]
[tex]U = 38[/tex]
Substitute 38 for U in [tex]G = 25+ U[/tex]
[tex]G = 25 + 38[/tex]
[tex]G =63[/tex]
Substitute 63 for G in [tex]S = 25 + G[/tex]
[tex]S = 25 + 63[/tex]
[tex]S = 88[/tex]
I need help on this like rn
How many and what
type of solutions does a
quadratic have with a
discriminant = -9?
Answer:
The value of the discriminant tells you whether the quadratic has 2 solutions, 1 solution, or no real solutions. If b2 – 4ac simplifies into a positive number, then the quadratic has 2 solutions. If b2 – 4ac simplifies into a 0, then the quadratic has 1 solution.
Step-by-step explanation:
A number line going from 0 to 1. StartFraction 5 Over 6 EndFraction is labeled on the line.
Luke has a board 5
6
of a yard long. He needs to cut the board into 5 equal sections.
Use the expression
to find the length of each section.
Each section is
yard long.
Answer:
5/6 divided by 5 and 1/6
Step-by-step explanation:
i just got it right
Answer:
[A] 5/6 divided by 5 [B] 1/6
Step-by-step explanation:
Thats all have a wonderful day/night.
Last year, 180 new houses were built in a neighborhood. So far this year, 5/6 of them have been sold. How many new houses have been sold this year?
Answer:
60 houses.
Step-by-step explanation:
160 divided by 8 = 20
Multiply 20 by 3 and you get 60
Katherine and Adam need a rug for their living room. They have purchased a rectangular rug that has a width of 5��2+ 3�� ft. and a length of 4 ��2+ 2 ft
In the space below, draw a sketch of the rug.
What is the perimeter of the rug?
Their friend, Lewis, has written the expression shown in the box below to represent the perimeter of the rug.
9��2+ 5��2
Is Lewis correct or incorrect?
Lewis also predicts that an expression representing the area of the rug will be a binomial.
Is Lewis correct or incorrect?
Answer; put the question again l cant see it
Step-by-step explanation:
if u = < 8,6> and v = (-8,-8>, what is u + v
Answer:
(0,-2)
Step-by-step explanation:
[8+(-8)},[6+(-8)}
[8-8},[6-8}
0,2
Suppose a large shipment of laser printers contained 22% defectives. If a sample of size 276 is selected, what is the probability that the sample proportion will differ from the population proportion by less than 6%
Answer:
The probability that the sample proportion will differ from the population proportion by less than 6% is 0.992.
Step-by-step explanation:
According to the Central limit theorem, if from an unknown population large samples of sizes n > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.
The mean of this sampling distribution of sample proportion is:
[tex]\mu_{\hat p}=p\\\\[/tex]
The standard deviation of this sampling distribution of sample proportion is:
[tex]\sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}[/tex]
The information provided is:
[tex]p=0.22\\n=276[/tex]
As the sample size is large, i.e. n = 276 > 30, the Central limit theorem can be used to approximate the sampling distribution of sample proportion.
Compute the value of [tex]P(\hat p-p<0.06)[/tex] as follows:
[tex]P(\hat p-p<0.06)=P(\frac{\hat p-p}{\sigma_{\hat p}}<\frac{0.06}{\sqrt{\frac{0.22(1-0.22)}{276}}})\\\\=P(Z<2.41)\\\\=0.99202\\\\\approx 0.992[/tex]
Thus, the probability that the sample proportion will differ from the population proportion by less than 6% is 0.992.
Last month, Sheldon earned $12.80 in interest on a $320 deposit into his bank account. If the interest earned is directly proportional to the amount deposited, how much interest can Sheldon expect next month if he deposits $830?
Answer:
[tex]x=\$ 32.20[/tex]
Step-by-step explanation:
[tex]\frac{12.80}{320}=\frac{x}{830} \therefore 320x=830\times12.80[/tex]
[tex]x=\$ 32.20[/tex]
Answer:
the answer is $487.20 if he expects to deposits $830
samantha had $299 in her bank account. If she go shopping and spend $348, what will her bank account be.
Answer:
-49
Step-by-step explanation:
You subtract 348 from 299 and you get -49 which means she is in debt
I need help please and thanks
Answer:
1.) 3
2.) 11
3.)17
Step-by-step explanation:
you would want to add them up then multiply
Answer:
M<1=55
M<2=55
M<3= 70
Step-by-step explanation:
Angle 1 and 2 are equal
Ok So I need help with this question do u guys think u can help me out? :
You buy 3.18 pounds of apples , 1.45 pounds of peaches , and 2.72 pounds of oranges . What is your total bill?
Answer: you have to add
Step-by-step explanation:
3.18+1.45+2.72 = 7.35
What’s the answer?????!
Answer:
0.58×0.90=0.522
Step-by-step explanation:
Im not really sure if it's right
1. Find m21 if mZCUB = 78.
Answer:
m < 1 = 78 - 48 = 30 .......
Find measure of angle A
Answer:
116°
Step-by-step explanation:
3x-4+9x+17+6x-31=180
18x-18=180
+18 +18
18x=198
18x/18=198/18
x=11
a=9x+17
a=9(11)+17
a=99+17
a=116°
hopefully this helps :)
Angle A : 116°
Further explanationThe sum of all the angles in the triangle is 180°
∠A+∠B+∠C=180°
[tex]\tt 9x+17+3x-4+6x-31=180\\\\18x-18=180\\\\18x=198\\\\x=11\\\\A=9.11+17=116^0[/tex]
A parking lot has the shape of s rectangle . A scale drawing for the parking lot measures 6 cm by 20 cm
In ΔRST, t = 4.1 inches, r = 7.1 inches and ∠S=45°. Find the length of s, to the nearest 10th of an inch.
Answer:
The length of s is 5.1 inches to the nearest tenth of an inch
Step-by-step explanation:
In Δ RST
∵ t is the opposite side to ∠T
∵ r is the opposite side to ∠R
∵ s is the opposite side to ∠S
→ To find s let us use the cosine rule
∴ s² = t² + r² - 2 × t × r × cos∠S
∵ t = 4.1 inches, r = 7.1 inches, and m∠S = 45°
→ Substitute them in the rule above
∴ s² = (4.1)² + (7.1)² - 2 × 4.1 × 7.1 × cos(45°)
∴ s² = 16.81 + 50.41 - 41.1677568
∴ s² = 26.0522432
→ Take √ for both sides
∴ s = 5.10413981
→ Round it to the nearest tenth
∴ s = 5.1 inches
∴ The length of s is 5.1 inches to the nearest tenth of an inch
Answer:
5.1
Step-by-step explanation:
delta math
Help me pls hjshshsishssjsjs
Answer:
44444444444444444444444444444444444444444
Step-by-step explanation:
4444444444444
Jeremiah works 5 days a week. If he earns $225 a day, how much does he earn per week?
Answer:
1125$
Step-by-step explanation:
225 x 5 (because he only works 5 days a week)
LOOK AT THE PICTURE
THANK YOU
An insurance company checks police records on 582 accidents selected at random and notes that teenagers were at the wheel in 91 of them. Which is a correct 90% confidence interval for the proportion of all auto accidents that involve teenage drivers
Answer:
The 90% confidence interval is [tex]0.1316 < p < 0.1812[/tex]
Step-by-step explanation:
From the question we are told that
The sample size is n = 582
The number of teenagers at the wheel is k = 91
Generally the sample proportion is mathematically represented as
[tex]\^ p = \frac{k}{n}[/tex]
=> [tex]\^ p = \frac{91}{582}[/tex]
=> [tex]\^ p = 0.1564[/tex]
From the question we are told the confidence level is 90% , hence the level of significance is
[tex]\alpha = (100 - 90 ) \%[/tex]
=> [tex]\alpha = 0.10[/tex]
Generally from the normal distribution table the critical value of [tex]\frac{\alpha }{2}[/tex] is
[tex]Z_{\frac{\alpha }{2} } = 1.645[/tex]
Generally the margin of error is mathematically represented as
[tex]E = Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} } [/tex]
=> [tex]E = 1.645 * \sqrt{\frac{0.1564 (1- 0.1564)}{582} } [/tex]
=> [tex]E = 0.0248 [/tex]
Generally 95% confidence interval is mathematically represented as
[tex]\^ p -E < p < \^ p +E[/tex]
=> [tex]0.1564 -0.0248 < p < 0.1564 + 0.0248[/tex]
=> [tex]0.1316 < p < 0.1812[/tex]
can someone please give me a hand with this ?
Answer:
C.) A' (-5,3), B' (-1,3), C' (4,-3)
Step-by-step explanation:
Translation rule: (x, y + 2)
A (-5,-5) -> A' (-5, -5 + 2) -> A' (-5, -3)
B (-1,1) -> B' (-1, 1 + 2) -> B' (-1, 3)
C (4,-5) -> C' (4, -5 + 2) -> C' (4, -3)
write the following as an algebraic equation. Use x as the unknov
and use a sum.
The sum of a number and 38.9 is 45.5
Answer:
The unknown value of x is 6.6
Step-by-step explanation:
38.9 + x = 45.5
x = 45.5 - 38.9
x = 6.6
what is sigma notation of 3 + 7 + 11 + 15 + 19
Answer:
Step-by-step explanation:
Given
sigma notation of 3 + 7 + 11 + 15 + 19
Solution
Sigma notation=
Sigma
Alguien me dice la respuesta
Timmy flies out to Vail. After day one he has a bank account balance of -$2.50. If his debt
increases by $2.50 each day and he spends 5 days out in Vail what is his bank account
balance?
Answer:
$-12.50
Step-by-step explanation:
Take -2.50 and multiply it by 5 to get the answer.
Suppose a particular brand of energy bars has come up with a new recipe. They want to know how many energy bars they need to test for calorie content in order to be 94% confident that the sample mean will be within 3 calories of the true mean
Complete Question
Suppose a particular brand of energy bars has come up with a new recipe. They want to know how many energy bars they need to test for calorie content in order to be 94% confident that the sample mean will be within 3 calories of the true mean? Suppose there is a population standard deviation of 20 calories
Answer:
The value is [tex]n =157 [/tex]
Step-by-step explanation:
From the question we are told that
The margin of error is [tex]E = 3[/tex]
The standard deviation is [tex]\sigma = 20[/tex]
From the question we are told the confidence level is 94% , hence the level of significance is
[tex]\alpha = (100 - 94 ) \%[/tex]
=> [tex]\alpha = 0.06[/tex] \
Generally from the normal distribution table the critical value of [tex]\frac{\alpha }{2}[/tex] is
[tex]Z_{\frac{\alpha }{2} } = 1.881[/tex]
Generally the sample size is mathematically represented as
[tex]n = [\frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ] ^2[/tex]
=> [tex]n = [\frac{1.881 } * 20 }{3} ] ^2[/tex]
=> [tex]n =157 [/tex]
The model shows the expression 21 + 9.
Which expression is equivalent to this sum?
3(7+3)
307) + 3
0 3+7+3
703 + 3)
Answer:
a
Step-by-step explanation: