Answer:
x = ±2√3
Step-by-step explanation:
Step 1: Write equation
x² - 7 = 5
Step 2: Solve for x
Add 7 to both sides: x² = 12
Square root both sides: x = ±√12
Simplify: x = ±2√3
Step 3: Check
Plug in x to verify if it's a solution.
(2√3)² - 7 = 5
4(3) - 7 = 5
12 - 7 = 5
5 = 5
(-2√3)² - 7 = 5
4(3) - 7 = 5
12 - 7 = 5
5 = 5
Image for question below
i need help on my home work WITH ratio's
Answer:
Step-by-step explanation:
a ratio is comparing to things to gather and than simplifying to the smallest numbers
Find the value of an investment of $20,000 for 12 years at an annual interest rate of 3.85%
compounded continuously.
Answer:
$31,745Step-by-step explanation:
Compound continuously:
FVn = PV x e^rn
where
PV = $20,000
r = 3.85%
n = 12 years
plugin values into the formula:
FV₁₂ = $20,000 x e ⁰°⁰³⁸⁵ ⁽¹²⁾
FV₁₂ = $31,745
How do you write equations for horizontal and vertical lines
Bella measure the height of her corn stalks in centimeters. The heights are 81 88 69 65 87. What is the mean height of Bell’s corn stacks
Answer:
It’s c. 78cm
Step-by-step explanation:
This might be hella late
Answer:
C-78
Step-by-step explanation:
what is the sum of 5 to the fourth power and 3 to the second power
Answer:
634
Step-by-step explanation:
[tex]5^{4\\}[/tex]=625
3²=9
625+9=634
if h(c) = -4, then c =
Multiple choice questions .
Please give the answer fast .
I will mark you as brainliest.
Answer:
1. a), 2. c), 3. b), 4. a), 5. a), 6. c), 7. ⁵/₃ or 5÷3 or 1 ²/₃Step-by-step explanation:
1. 0 divided by any number is always 0
2. 7×(5-5) = 7×0 = 0
3. Integers between -5 and 5 are:
-4, -3, -2, -1, 0, 1, 2, 3 and 4
4. - ( |5 - 11| ) = - ( |-6| ) = - ( 6 ) = -6
5. Numerical coefficient is the number with its sign. No letters.
6. x increased by y means: y more than x. And x+y = y+x
7. one third of 5 means [tex]\frac13\cdot5[/tex] so it is: [tex]\frac53=5:3=1\frac23[/tex]
Find the length of the missing side.
Please help!
Answer:
15
Step-by-step explanation:
a2+b2=c2
Javi are selling cookies at different rates. She charges $1.25 per cookie when a customer buys fewer than 12 cookies. If a customer buys at least a dozen (12) cookies, she charges $12 per dozen and $0.75 for each additional cookie over a dozen. Let y represent the cost to the customer and x represent the number of cookies the customer purchases.
Answer:
1.25÷12=9.6
12÷0.75=16
16÷9.6=1.6666667
I really need help with this problem
Answer: -6
Step-by-step explanation:
y = -4x -6
Solve the system of equations.
12x-5y=-20
y=x+4
Answer:
x = 0, y = 4
Step-by-step explanation:
12x - 5y = 20
y = x+4
____________
12x - 5y = 20
-x + y = 4
___________
12x - 5y = 20
5(-x+y = 4)
___________
12x - 5y = 20
-5x + 5y = 20
____________
7x = 0
x = 0
y = x + 4
y = 0+4
y = 4
A typist charges 28Gp for the first five sheets and 8Gp for each additional sheet she types. How much will she earn, if she types 36 sheets?
Answer:
204
28=5 8=1
28+28=10 sheets
28×7=35 sheets
28x7=196
196+8=204
the plus 8 is for the extra page that is needed for 36
Three parallelograms are hinged at each vertex to create an arm that can extend and collapse for an exploratory spaceship robot. What is m<1?
Given:
Three parallelograms are hinged at each vertex.
To find:
The measure of angle 1.
Solution:
From the given figure it is clear that angle on the vertex = 122°.
Now let angle 2 be the vertex angle in second parallelogram as shown in below figure.
[tex]m\angle 2=122^\circ[/tex] (Vertically opposite angles)
Two consecutive angles of a parallelogram are supplementary angles.
[tex]m\angle 1+m\angle 2=180^\circ[/tex]
[tex]m\angle 1+122^\circ=180^\circ[/tex]
[tex]m\angle 1=180^\circ-122^\circ[/tex]
[tex]m\angle 1=58^\circ[/tex]
Therefore, the measure of angle 1 is 58°.
plz help me it harrd paz help em it sosososo hard
Answer:
$170 and then $40
Step-by-step explanation:
Never round down for stuff like this because you would go to a store and bring Less money than you intend to spend
Segment AB has the endpoints A(3,5), and B(-2, 4). Find the distance to the nearest tenth between the two points.
Positive numbers must have the positive sign (+) in front of them.
True False
Answer:
False
Step-by-step explanation:
If a number has no sign, it usually means that it is a positive number. Any numbers greater than zero are described as positive numbers. Usually, we don’t put a plus sign in front of positive numbers because the general understanding is that numbers without a sign are positive.
plz help with this (pic)
The answer is h=7
Step-by-step explanation:
Write 3.1405 x 10° in standard form
Answer:
3.1405
Step-by-step explanation:
[tex]10^{0}[/tex] = 1 ⇒ This is always the case
So,
3.1405 × 1 = 3.1405
Westmoreland, CA is 157 feet below sea level. Dallas, TX is 430 feet ABOVE sea level. What is the distance between the two cities?
West Moreland is -157 ( below sea level would be a negative value)
Dallas is 430 above
-157 to sea level is 157 feet
Sea level to 430 is 430 feet
Total distance = 157 + 430 = 587 feet.
Answer:
587 feet
Westmoreland is 157 feet below the sea level.
This is a negative number, so add 157 to get to 0.
Dallas is 430 above sea level.
Add 430 and 157. You get 587.
Hope it helps!
(+2)-(-6) plz answer I am confused
Answer:
8
Step-by-step explanation:
the negatives cancel out when you have 2 negatives so basically you have 2+6
whats the whole problem?
Step-by-step explanation:
..................
Simplify: 6 to the the 6th power multiplied by 6 to the second power
1679616 that's the answer
Solve the inequality:
Answer:
x is greater than or equal to 9
Step-by-step explanation:
Answer:
[tex] x \geqslant 9[/tex]
Step-by-step explanation:
[tex] \frac{5x - 6}{3} \geqslant 13 \\ 5x - 6 \geqslant 13 \times 3 \\ 5x - 6 \geqslant 39 \\ 5x \geqslant 39 + 6 \\ 5x \geqslant 45 \\ \frac{5x}{5} \geqslant \frac{45}{5} \\ x \geqslant 9[/tex]
a store charges $20 for 15 candy bars. at this rate how much would they charge for 18 candy bars.
23 im pretty sure lol
Step-by-step explanation: If not im sorry i couldn't help and have a good day lol
3 1/3 minus 1 1/4 an explanation would be great please and thank you
Lilly bought 4 pairs of blue jeans at $32 each. How much money did she pay the clerk?
In two or more complete sentences, explain how to find the interval(s) in which the function f(x) is decreasing and how interval notation is used to express the interval(s). In your final answer, include the interval in which the function is decreasing.
[(6^3−9)÷23]4 can you plz answer it quickly
Answer:
36
Step-by-step explanation:
36. Follow GEMDAS. Groping symbols, exponents, multiplication, division, addition, subtraction. 6^3 equals. 6 times 6 times 6. Which is 216. 216-9 is 207. 207 divided by 23 is 9. 9times 4 is 36.
Answer:
36
Step-by-step explanation:
36. Follow GEMDAS. Groping symbols, exponents, multiplication, division, addition, subtraction. 6^3 equals. 6 times 6 times 6. Which is 216. 216-9 is 207. 207 divided by 23 is 9. 9times 4 is 36.
Kushner & Company is an architectural firm specializing in home remodeling for private clients and new office buildings for corporate clients. Kushner charges customers at a billing rate equal to 130% of the client's total job cost. A client's total job cost is a combination of (1) professional time spent on the client ($ 63 per hour cost of employing each professional) and (2) operating overhead allocated to the client's job. Kushner allocates operating overhead to jobs based on professional hours spent on the job. Kushner estimates its five professionals will incur a total of 10,000 professional hours working on client jobs during the year
Answer:
the question is incomplete so I looked for a similar question:
Besides the missing information, we are told that Li's job required 25 professional hours, 125 miles of travelling, 4 blueprint copies, and 15 secretarial hours.
total overhead = $233,000
total professional hours = 10,000
predetermined overhead allocation rate = $233,000 / 10,000 = $23.30 per professional hourcost of Li's job:
professional hours = 25 x $63 = $1,575
allocated overhead = 25 x $23.30 = $582.50
total = $2,157.50
billing to Mr. Li = $2,157.50 x 1.3 = $2,804.75if they used ABC costing, then allocation rates would be:
cost per mile = $6,000 / 15,000 miles = $0.40 per mile drivencost per blueprint copy = $32,000 / 1,000 = $32 per blueprint copycost per secretarial hour = $195,000 / 5,000 = $39 per hourif ABC costing was used, the cost of Li's job would have been:
professional hours = 25 x $63 = $1,575
125 miles x $0.40 = $50
4 blueprint copies x $32 = $128
15 secretarial hour x $39 = $585
total cost = $2,338
billing to Mr. Li = $2,338 x 1.3 = $3,039.40ABC costing is more exact, and therefore, it is more fair to customers (and the company also) since customers are charged based on what the company really spent on serving them.
A random sample of golf scores gives the following computer output:
n: 20
x-bar: 84.5
Sx: 11.5
minX: 68
Q1: 78
Med: 86
Q3: 91
maxX: 112
What can be said of the number of outliers?
A. 0
B. 1
C. 2
D. At least 1
E. At least 2
EXPLAIN how your answer to #17 is correct. Include SHOWN WORK in your answer
Please help me I have no clue what to do
Answer:
D
Step-by-step explanation:
The interquartile range IQR = Q₃ - Q₁ = 13. The most commonly accepted definition of an outlier is any value greater than Q₃ + 1.5 (IQR) = 110.5 or less than Q₁ - 1.5 (IQR) = 58.5. Looking at the minimum and maximum values, we see that there are no outliers on the lower end, and at least one outlier on the upper end.
