Answer:
y = 10 when x = 9
Step-by-step explanation:
y = k/x
Where,
k = constant of proportionalty
Find k when x = 6 when y = 15
y = k/x
15 = k/6
Cross product
15 * 6 = k
k = 90
what does y equal when x = 9?
y = k/x
= 90/9
y = 10
y = 10 when x = 9
What is the following product?
StartRoot 12 EndRoot times StartRoot 18 EndRoot
StartRoot 30 EndRoot
5 StartRoot 6 EndRoot
6 StartRoot 5 EndRoot
6 StartRoot 6 EndRoot
The solution to the multiplication of surds (2√3) × (3√2) is; 6√6
We want to find; √12 × √18Let us break each of them into the factors to get;
√12 × √18 = √(4 × 3) × √(9 × 2)
Now,this can be expressed as;(√4 × √3) × (√9 × √2)
Simplifying this further gives;
(2√3) × (3√2)
Now, in surds, we know that;a√b × p√q = ap√bq
Applying the surd rule above to our question gives;(2√3) × (3√2) = 6√6
Read more about multiplication of surds at; https://brainly.com/question/24700530
Find the Area of the quadrilateral. Please help
Answer:
18 ft^2
Step-by-step explanation:
This quadrilateral is a parallelogram.
Area = base × height
= 6 × 3
= 18 ft^2
- Find the length of the arc. Use 3.14 for Tl.
Answer:
Solution given;
angle =270°
radius [r]=8cm
we have
length of arc =270°/360°×2×π*r
=270°/360°×2×3.14*8=37.68cm
length of the arc is 37.68cm.
Leo is buying milk for his family for a week. He said he bought 7 kilograms of milk. Is his answer reasonable? Explain.
Answer:
First, we know that a single liter of milk weighs around 1.032 kg.
Then 7 kilograms of milk is equivalent to (almost) 7 liters of milk.
Now, this is reasonable?
Well, for a typical person, the consumption is between 0.5L and 0.75L
So 7kg of milk may less of what a typical family consumes in a week, but is not an outlier (for example, 30kg of milk or 1kg of milk per week are outliers, which are "nonreasonable") so 7 kg is a reasonable amount of milk.
Now, if the question only refers to the units he used (kg instead of liters) this does not matter, as we know, mass and volume are two different, but equivalent, ways of describing a known matter, as these are related by the density:
Density = mass/volume.
So, for a known material, if you know the mass that you have, you also know the volume.
Then using kg is reasonable in this situation.
use 3.14 for π round to the nearest tenth
Answer:
A=4pi(r)^2
A=4pi(5)2
A=4pi25
A=314.16 rounds to 314.6 m
Volume=4/3pi(r)^3
volume=4/3pi(5)^3
volume=4/3pi(125)
volume=523.59 rounds to 523.6 m
hope this helps
have a good day :)
Step-by-step explanation:
How many soulutions are there to the equation below?
8x+47=8(x+5)
Answer:
Step-by-step explanation:
8x+47=8(x+5)
8x+47=8x+40
47=40
which is impossible so it has no solution.
Please help with this question from Khan Academy!!!!!!!!!!!!!!!!!!!!!!
Answer:
B = 42
Step-by-step explanation:
B × 2/7 = A
A ÷ 2/7 = B
12 ÷ 2/7 = B
B = 42
What is the radius of a circle with a center at (2,3) that contains the point (5, 7)?
Answer:
5
Step-by-step explanation:
(5-2)^2 + (7-3)^2 = radius^2
radius=√25
radius=5
Beth will you help Andy with his algebra?
which punctuation mark is missing in the sentence?
A),
B)!
C)´
D)-
Answer:
A)
Step-by-step explanation:
mark me brainliest plzzzzzzz
Drag the tiles to the correct boxes to complete the pairs.
Using the properties of Integer exponents, match each expression with the correct equivalent expression.
(-22)-0 (2-5)-4
(-2-4-2. (22)
(22)² (23) - 3
24. (22)-2
2-32
2-5
Answer:
Plz excuse my handwriting ☺️
Someone please help my teacher says there wrong but I keep getting the same thing, will give brainliest just please help me. It’s question number 2
Select all thepairs of equivalent
expressions.
A research study was conducted to measure the time students focus on a task before being distracted. The box plots show the distributions of attention spans of high school and college students.
Which statements are true regarding the data sets? Select two options.
The median attention span of college students is greater than the median attention span of high school students.
The range of attention span of college students is greater than the range of attention spans of high school students.
The interquartile range of attention spans of college students is greater than the interquartile range of attention spans of high school students.
All of the college students in the study had greater attention spans than the high school students.
The minimum attention span of high school students is greater than the minimum attention span of college students.
Answer: A. and C.
Step-by-step explanation: On Edge!!
A bag contains 9 identical balls out of which 3 are blue, 2 are white and the remaining are red.
If a ball is drawn from the bag what is probability that it is :
1. blue
2.not red.
Answer:
Total number of balls = 9
P(blue) = blue / total = 3/9 = 1/3 or 33.33%P(not red) = (total - red)/total = 5/9 or 55.55%x(x+2) + y (x + 2) - 5(x + 2)
factor
Answer:
x² + xy - 3x + 2y - 10
Step-by-step explanation:
x(x + 2) + y(x + 2) - 5(x + 2)
x² + 2x + y(x + 2) - 5(x + 2)
x² + 2x + xy + 2y - 5(x + 2)
x² + 2x + xy + 2y - 5x - 10
x² - 3x + xy + 2y - 10
x² + xy - 3x + 2y - 10
what is the answer to this?
Answer:
19
Step-by-step explanation:
19 * 2 is 38.
38 -7 = 31
Answer:
-5, -5
Step-by-step explanation:
I need to know the answer to this problem. Thanks. I will name Brainliest to the correct answer :)
Answer:
422
Step-by-step explanation:
Large rectangle
A = 2(lw+wh+lh)
A = 2(7*10+10*5+7*5)
A = 310
Small rectangle
A = 136
Now the squares that connect both, 4*3
Since you have 1 on each rectangle, the total area for this is 24
add 310 + 136 and substract 24
Is every prime number a natural number?
Answer:
A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers.
Hope that answered your question.
Which sign makes the statement true?
9
No
12
12
<
=
Answer:
12=12Step-by-step explanation:
#hopeithelpsstay safe and keep wellmark me as brain liest plswhat is the value of x in the equation 2 x + 3y equals 36 when y equals 6
Answer: x=9
Step-by-step explanation:
(9x2)+(3x6)=36
18+18=36
Answer:
Hello there, the answer should be
9 is the value of x as,
Step-by-step explanation:
(9*2)+(3*6)=36
18+18=36
Hope this helps. if correct could you please mark me Brainliest
thank you have a good day!!
-2 - (-7) =
What is the answer
Answer:
[tex]{ \tt{ - 2 - ( - 7) }} \\ = { \tt{ - 2 + 7}} \\ = 5[/tex]
Which functions are even?
Answer:
Step-by-step explanation:
First function: even, because both exponents are even; graph is symmetric about the x-axis
Second function: mixture of even and odd exponents: not even
Third function: This is the square root of x - 2; not even
Fourth function: |x| is even; graph is symmetric about the x-axis
Which of the following is equivalent to 3 cm??
A.
B.
6 mm2
30 mm
90 mm-
300 mm
C.
D.
Answer:
30mm
Step-by-step explanation:
PLEASE HELP‼️ the diameter of a circle is 4cm. which equation can be used to find its circumference?
Answer:
I am not completely sure but it should be the first one
Step-by-step explanation:
An original investment of $15,000 earns 7.25% interest compounded continuously. What will the investment be worth in 3 years? 30 years?
After 3 years, the investment will be worth $
(Do not round until the final answer. Then round to the nearest cent as needed.)
Answer:
[tex]A = Pe^{rt}[/tex]
A = 1500[tex]e^{.0725 t}[/tex]
3 years = $18,644.48
30 years = $132,032.78
Step-by-step explanation:
Please help Im really struggling
Which of the following is NOT an example of a random sample?
A. Placing the names of 100 people in the population in a
box and drawing 25 names without looking.
B. Choosing a name at random from the names on a list of 100 people in the population, choosing every 10th person after that, and continuing through the list, returning to the first name chosen
C. Dividing a list of names in a target population into
males and females and randomly selecting a proportional
sample from each group.
D. Choosing the first 50 names on an alphabetical list
of 100 people in the target population.
Answer:
D
Step-by-step explanation:
Because its not randomly selecting
The equations in the system below are equivalent.
y = 2 (x + 4). Y = 2 x + 8
How many solutions does the system have?
Translate
sentence into an inequality.
The difference of twice a number and 2 is less than -22.
Answer:
the answer is a -2 thanks
Where is
V
68 located on a number line?
Answer:
yeah sorry I just wanted points so j can ask questions I'm sorry so sorry plz forgive meee
c) What is value of right angle?
Answer:
90 degrees
Step-by-step explanation:
random stuff to make my answer long
Consider the algebraic expression:
−z − 7y + 18x + 4
Which of the following is a constant in this expression?
Which of the following lists all the coefficients in this expression?
Answer:
constant: 4
coefficent: 7, 18 (However, -1 can also be counted as a coefficient, it is just invisible!)
Step-by-step explanation:
coefficient: a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
therefore, 7 and 18 are coefficients. HOWEVER, -1 can also be a coefficient to -z.
constant: a quantity or parameter that does not change its value whatever the value of the variables, under a given set of conditions.
therefore, 4 is a constant.
hope this helps! if it does, please mark brainliest! thanks!
Answer:
4
-1, -7, 18
Step-by-step explanation: