Answer:
24000
Step-by-step explanation:
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:
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:
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
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]
Alguien me dice la respuesta
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
What Is 1/4(m/3+2/5)?
Answer:
m/12 + 1/10
Step-by-step explanation:
Answer:
m/12+1/10
Step-by-step explanation:
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:
Ramona completed all 30 questions on the test. If 5/6 of the questions were correct, how many questions
did Ramona answer incorrectly?
Help taking a test.!
Answer:
If Romona Complete all 30(Don't forget to group all 30) 5/6 were correct! then you will need to subtract 30-5/6= so that would be 29 1/6 Then if you need to find the amount that would be right take the Whole number! so take 30/50 and divide and you should get your answer!
Step-by-step explanation:
i hope this helps
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]
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.
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]
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
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
It said that it was wrong.
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
A saleswoman is paid $10 per hour and $6 for each sale she makes. She wants to earn
more than $150 in an 8-hour work period.
What inequality that represents the number of sales, x, the saleswoman must make in an 8-hour
period to earn more than $150.
O A 80 + 62 > 150
OB. 80 + 62 > 150
o C 80+ 6 > 150
D. 802 + 6 > 150
Activity 2 of 2
What is the least number of sales she must make to reach her sales goal? Show your work or
explain your answer.
Answer: It's, 80+6>150
Step-by-step explanation:
Answer:
80+6x>150
The least amount of sales are 12
Step-by-step explanation:
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
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)
I need help on this like rn
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
A parking lot has the shape of s rectangle . A scale drawing for the parking lot measures 6 cm by 20 cm
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)
What is the quotient of 6/7 and 3/14
Answer:
6/7 divided by 3/14=4
Step-by-step explanation:
Hope this helps!
Answer: 4
Step-by-step explanation: To divide fractions, you have to switch the operation to multiplication, and multiply the first fraction by the reciprocal of the second fraction. So 6/7 times 14/3. Cross cancel out, so 14 and 7. 7 cancels out to be 1, 14 cancels out to be two. 6 and 3, are the same thing. So in the end you have 2/1 times 2/1 which is 4.
PLEASE HELP ME!!!
A particle, initially 15m from the origin and travelling at –2 ms^-1, accelerates at a constant rate and ends up –20 m from the origin and travelling at –5 ms^-1. What
is its acceleration?
I'm answering any 5th grade and below questions
Answer:
In at least one hundred words, describe how what Markandaya reveals about Kenny helps to shape his character, and which themes in Nectar in a Sieve are developed with this information.
Step-by-step explanation:
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]
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
LOOK AT THE PICTURE
THANK YOU
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