Answer: Apply the Sum/Difference Rule
d/dx(7x)-d/dx(8)
d/dx(7x)=7
d/dx(8)=0
7-0=7
Step-by-step explanation: The answer is 7
(Which is the simplified form of the expression ? 3(7/5x+4)-2(3/2-5/4x)
Answer:
let's see what to do buddy....
Step-by-step explanation:
[tex]3( \frac{7}{5}x + 4) - 2( \frac{3}{2} - \frac{5}{4}x) \\ \\ = \frac{21}{5}x + 12 - 3 + \frac{5}{2}x \\ \\ = \frac{(21 \times 2) + (5 \times 5)}{10} x + 9 = \\ \\ \frac{42 + 25}{10} x + 9 = \frac{67}{10}x + 9 = 6.7x + 9 [/tex]
A line has a slope of 9 and a y-intercept of 2. What is its equation in slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answer:
y=9x+2
Step-by-step explanation:
The standard form for a linear equation is y=mx+b. m=9 since it is slope and b=2 which is the y intercept. So the equation would be y=9x+2.
is -4 greater than -1/4
Answer:
No
Step-by-step explanation:
You would think -4 is, but because they are both negative, -1/4 is closer to zero
Answer:
no
Step-by-step explanation:
think of in a way where the number that's closest to 0 is bigger
How do you do this question?
Answer:
8√2
2√2
Step-by-step explanation:
Using arc length for parametric equations:
s = ∫ₐᵇ √((dx/dt)² + (dy/dt)²) dt
x = 2 sin²t
dx/dt = 4 sin t cos t
y = 2 cos²t
dy/dt = -4 sin t cos t
s = ∫ √((4 sin t cos t)² + (-4 sin t cos t)²) dt
s = ∫ √(32 sin²t cos²t) dt
s = ∫ 4√2 sin t cos t dt
s = ∫ 2√2 sin(2t) dt
s = -√2 cos(2t)
If we evaluate this between t=0 and t=2π, we get s = 0. This means the particle travels forward and backward on the same curve.
sin²t and cos²t have periods of π, so if we evaluate from t=0 to t=π/2:
s = -√2 cos(2 (π/2)) − -√2 cos(0)
s = √2 + √2
s = 2√2
So the particle travels 2√2 four times from t=0 to t=2π.
The distance traveled is 8√2. The length of the curve is 2√2.
We can check our answer by eliminating the parameter.
x + y = 2 sin²t + 2 cos²t
x + y = 2
y = 2 − x
The curve is the line y = 2 − x from (0, 2) to (2, 0). Using distance formula to find the length of the line:
d = √((x₂ − x₁)² + (y₂ − y₁)²)
d = √((2 − 0)² + (0 − 2)²)
d = 2√2
find the z score for which the areas to the left is 0.20
do you have a picture or anything? Step-by-step explanation:
Which question is likely to be asked by a life insurance company to determine the price of a policy?
A.
Do you have any beneficiaries?
B.
Do you have a current shot record?
C.
Have you recently been out of the country?
D.
Do you have a history of illness or other health conditions?
E.
Have you recently purchased a vehicle?
The query which is likely to be asked by a life insurance company to determine the price of a policy is, Do you have a history of illness or other health conditions?
What is life insurance?The life insurance is the type of insurance in which the insurance company pay the total amount of loan (face value) to the beneficiary in case of death of the policyholder during policy period.
The questions which can be asked by a life insurance company to determine the price of a policy are:
The life insurance face value is mostly depending on the health of the policyholder.The history of health or illness can affect the face value of insurance.Good history with less health issues increase the face value of insurance and vice versa.The query which is likely to be asked by a life insurance company to determine the price of a policy is, Do you have a history of illness or other health conditions?
Learn more about the life insurance here:
https://brainly.com/question/25280754
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Use the graph to write an equation of the line (90,9)
Answer:
y = x ^2 − 99 x + 81
Step-by-step explanation:
Work backwards to find the factors from the roots, then multiply the factors together.
Is the function f(x)
= -6x + 5 linear or nonlinear?
Answer:
This is a linear function.
Step-by-step explanation:
A linear function is a straight line. Once you graph the equation, you get a staright line, therefore, it's linear.
Write the inequality shown by the graph.
[tex]x \geqslant 0.5[/tex]
is the inequality shown in the graph
Francesca by $25 worth of face painting supplies. At a local fair she charges five dollars to paint a child’s face how many faces must she paint to earn
$80 Solve equation by finding the zeros of the related function
Answer she would need to paint 16 faces to get 80$ I'm not sure what that last part is
Step-by-step explanation:
Felipe pays $1.50 per carton for fresh eggs from the farmers market and $2 for a water. If Felipe spends a total of $9.50, how many cartons of eggs did he buy
Answer:
7.50
Step-by-step explanation:
i'm dumb
Answer:
He can buy 5 cartons of eggs
Step-by-step explanation:
Take $9.50 and subtract $2
Then divide that answer by $1.50
find the slope of the line graphed. A) 1/2 B)2 C) 4 D)8
Answer:
d
Step-by-step explanation:
Which of following terms correctly described 4 : 1
Answer:
4:1 is a ratio
Step-by-step explanation:
It is also equal to 8:2, 12:3, etc.
Answer:
Ratio
Step-by-step explanation:
took test
find midpoint of the segment (−8,7) and (0,1)
Answer:
(-4,4)
Step-by-step explanation:
What is the product? -4 • 2 • (-9)
Answer:
72
Step-by-step explanation:
-4 times 2 is -8. -8 times -9 is 72 because the two negatives cancel each other out.
What is the slope of the line?I need right now please.
Answer:
2
Step-by-step explanation:
if you measure the rate change on the graph, you will see it is 2
A line passes through the points (1, 4) and (3, -4). Whic is the equation of the line?
y = -4 + 8. y = -2x + 6. y = -1/4x + 2. y = 2x + 2
Find the product of two numbers whose sum is 11 and difference is 3. A 28 B. 24 c. 20 D. 18 E. 16
what is the measure of
which one is greater 3m + 13 or 4m + 5
Answer: 3m+ 13 is greater
What is the difference between public relation and costomer relation?
help fr tho im slow
Carlos thought 12 friends were coming to his party, but 15 friends showed up. Calculate the percent error.
Answer:
25%
Step-by-step explanation:
[tex]error=|\frac{15-12}{12} |*100%[/tex]
and that is 3/12
0.25(25%)
(it is 100% not 100 in the formla, idk why its wrong)
Hoped this helped you
<3
Red
Answer:
its 14 friends 12 something i can't remember
Step-by-step explanation:
what is the scale on a map or drawing used for
Answer:
cm scale
Step-by-step explanation:
it may help you to understand
the ratio of girls to boys in a bicycling club was 3:6. There were 18 girls. How many boys were in the club?
Answer:
36
Step-by-step explanation:
Step 1:
3 : 6 Ratio
Step 2:
3 : 6 = 18 : x Equation
Step 3:
108 = 3x Multiply
Step 4:
x = 108 ÷ 3 Divide
Answer:
x = 36
Hope This Helps :)
Answer:
36
Step-by-step explanation:
We have the ratio 3:6(girls to boys)
Now lets simply put 18 below the 3. We know 18 to something has to equal 3:6.
Simply divided 18/3=6
Now we have 6. Simply multiply it by the number of boys.
6*6, which equals 36 boys,
Your answer would be 36 boys
Now if we put 18:36, we get the ratio 3:6, which further reduces down to 1:2.
Hope this helps!
What are the exact values of a and b
d) a = 5 ; b = 5√3
Step-by-step explanation:Hi there !
30°-60°-90° Theorem
side opposite the 30° angle = a side opposite the 60° angle => b = a√3 side opposite the 90° angle = 2a1)
side opposite the 90° angle = 2a
10 = 2a => a = 10/2 => a = 5
2)
side opposite the 60° angle => b = 5√3
Good luck !
Help!!!! I will give you brainiest!!!! Pls
find the solution of y=3x+5 for x=-2
Answer:
I think the answer is B
can you also please mark me as brainliest
Answer:
The slope-intercept form is y=mx+b y = m x + b , where m is the slope and b is the y-intercept. Using the slope-intercept form, the slope is 3 .
A washer and a dryer cost $995 combined. The washer cost $95 more than the dryer. What is the cost of the dryer?
Answer:
Step-by-step explanation:
Dryer = x
Washer: x+95
Now to find x, we must create an equation.
x+(x+95)=995
Now, we can add the variables.
x+x=2x
So now it would be:
2x+95=995
Now we must solve, since there is only one variable, we need to solve the constants.
Since 95 is positive, we need to cancel it out. And since you did it to one constant, you need to do it to the other.
2x=900
(since you subtract 95 from the other constant, too.)
Now, you must divide both sides by 2.
x = 450.
Now the washer isn't what we're supposed to find, but technically, you would still need it in the problem to find the answer for the dryer.
Hope this helps!
(-7x^2+5x+4)+(9x^2-2x-6)+(3x^2+4x)
Answer:
5 x^2 + 7 x − 2
Step-by-step explanation:
Dana is skating laps to train for a speed skating competition. She can skate one lap in 40 seconds.
1. Write a ratio in simplest form comparing Dana's time to her number of laps.
2. Suppose Dana skates for 20 seconds. How many laps will she skate?
3. Write a ratio of Dana's times from number 2 to her number of laps.
4. How could you simplify the ratio you wrote in 3?
Answer:
Dana can skate and I can not
Step-by-step explanation:
Find the area and perimeter of the figure in the graph below
area =
perimeter rounded to the nearest tenth =
Answer:
The answer is 20
Step-by-step explanation:
When you take the height of the triangle (which is 4) you take that and divide it by 2 or multiply by 1/2 which gets you 2. Then you take the two bases of the trapizoid and add them up to get 10 and then you multiply the two from earlier by 10 to get 20.