Answer:
Step-by-step explanation:
23
12a + 3 - y
What is the constant?
What is the coefficient?
What is the variable?
What are the factors of 9x?
Answer:
the constant is 3 the coefficant is y and the varible is a and the factors of 9 are 18 and 27
Step-by-step explanation:
Answer:
The constant is 3
The coefficient is 12
The variables are both A and Y.
Disclaimer: I'm not sure about this next one, but I believe it's right.
9x factors are 3x, 1, and 9x.
If you wanted me to factor it, then it'd be something like 3x(3)
Step-by-step explanation:
A constant is a number that is by itself. Variables can't be constants. In this case, the only number that is by itself, that isn't a variable is 3. Therefore, 3 is the constant.
A coefficient is a number that accompanies the variable. Normally in a math equation, a variable is multiplied by a number. In this case, A is being multiplied by 12, so 12 is the coefficient.
The variable is the letter that represents any number. In this case, there are two variables, A and Y. They both represent numbers that can differ. So, A and Y are the variables.
The factors of 9x are 3x, 3, 1x, 1, 9x, and 9.
9 times 1x is 9x, 9x times 1 is also 9x.
3 times 3x is 9x, and 3x times 3 is again, 9x.
Sorry if I was wrong about the 4th one.
Lin ran 29 meters in 10 seconds. she ran at a constant speed. At this rate, how far can she run in 1 minute
Answer:
2.9 per second
Step-by-step explanation:
Write an equation in point-slope form of the line that passes through the point (4, 4) with slope 3.
Answer:
(y-4) = 3(x-4)
Step-by-step explanation:
(y-4) = 3(x-4)
y-4= 3x-12
Y= 3x- 8
Solve the following simultaneous linear equations.
2x + y = 5
4x – 3y = -10
Answer:
(1/2,4)
Step-by-step explanation:
First, determine y in first equation: 2x+y=5 or y=5-2x
replace value of y determined in first equation (5-2x) into 2nd equation
4x-3(5-2x)=-10
4x-15+6x=10
10x=5
x=1/2
put value of x into either equation to solve for y so
2(1/2)+y=5
1+y=5
y=4
answer: x=1/2, y=4
check answer by substituting x and y into either equation:
4x-3y=-10
4(1/2)-3(4)=-10
2-12=-10
-10=-10
or
2x+y=5
2(1/2)+4=5
1+4=5
5=5
I need some help with this I don't understand this much.
Answer:
ΔX = 6 – -1 = 7
ΔY = 3 – 2 = 1
Step-by-step explanation:
the slope is 7 the equation is y = 1/7x +15/7
x1=6
y1=-6
x2=3
y2=2
Identify CD. Please help ASAP
Answer: CD=7
Step-by-step explanation: By the definition of congruence, AB=CD.
Substitute the given expressions for AB and CD.
x+5=2x+3
Subtract x from both sides.
5=x+3
Subtract 3 from both sides.
2=x
Substitute x=2 back into the expression for CD and simplify.
CD=2(2)+3=7
Therefore, CD=7.
I hope this helps.
ariana
Mateo, a 31-year-old nonsmoker ($5.50), wants to purchase $100,000 in coverage for himself and $75,000 for his spouse, who is female, 30 years old, and does not smoke ($3.50). What will the insurance premium be?
A. $30.50
B. $32.50
C. $35.50
D. $36.00
Answer: B. $32.50
Step-by-step explanation:
The premiums listed in brackets are for every $25,000 of coverage.
Mateo wants a $100,000 coverage so we need to divide this by $25,000 to see how much more he will have to pay:
= 100,000 / 25,000
= 4
Mateo will have to pay 4 times the $5.50 for himself:
= 4 * 5.50
= $22.00
For his spouse who requires $75,000, he will have to pay:
= 75,000 / 25,000
= 3
= 3 * 3.50
= $10.50
Total Mateo is to pay for both his spouse and himself is:
= 22 + 10.5
= $32.50
Answer: %32.50
9 + 10 = 21
Which symbol correctly compares the fractions below?
1/8 ? 1/2
Answer:
< "less than sign"
Step-by-step explanation:
1/8 is 0.125 in decimal form.
1/2 is 0.5 in decimal form.
Therefore, 1/2 is greater than 1/8 so you would use the less than symbol (<) for a final answer of 1/8<1/3.
You are using a math software program to make a pattern for a plastic part. You draw the pattern on a coordinate plane with units in millimeters and the bottom left corner as the origin. Write an equation for the circular hole.
Someone plz help me >_<
Answer: (x - 2) ^2 + (y - 6) ^2 = 25
Answer:
(x - 48)² + (y - 24)² = 64Step-by-step explanation:
From the graph we see that
The diameter of the circle is: d = 16 mmThen its radius is: r = 16 mm/ 2 = 8 mmThe center has x-coordinate: h = 40 + 8 = 48Y-coordinate: k = 32 - 8 = 24Use circle formula:
(x - h)² + (y - k)² = r²Substitute values to get required equation:
(x - 48)² + (y - 24)² = 8²(x - 48)² + (y - 24)² = 64Please help asap! I dont get it
find the equation of the line that is perpendicular
Answer:
y= 4/3 + 0
Step-by-step explanation:
Ivan found the change in a scale factor. His work is shown below. What error did Ivan make?
Old length = 35 feet New length = 10 feet
StartFraction 10 divided by 5 over 35 divided by 5 EndFraction = StartFraction 2 over 7 EndFraction
Answer:
PLS give me brainliest likes and 5 stars
Step-by-step explanation:
Here
Ivan wrote the ratio incorrectly. The ratio should be written as the old length to the new length, so it should be 35
10
, which reduces to 7
2
. When going from larger to smaller dimensions, the change in the scale factor is a ratio that looks like an improper fraction, with a larger number in the numerator and a smaller number in the denominator.
Answer:
Ivan wrote the ratio incorrectly. The ratio should be written as the old length to the new length, so it should be 35/10, which reduces to 7/2. When going from larger to smaller dimensions, the change in the scale factor is a ratio that looks like an improper fraction, with a larger number in the numerator and a smaller number in the denominator.
Step-by-step explanation:
Mike will roll two number cubes labeled 1 through 6. After each roll, he adds the two numbers showing and records the result. He will roll the cubes 500 times. About how many times can he expect a sum greater than 8?
Answer:
In 500 rolls he can expect to get this outcome about 27.77...%* 500 = 139 times.
which point is a solution to the inequality shown in this graph? (0, 1) (3, -1)
options:
a (0, -5)
b (5, -5)
c (3, -1)
d (0, 0)
Answer:
the answer is (3, -1)
Step-by-step explanation: Ap3X
If a and B are angles which tan a= 3/4 and cos B= 8/17. Determine the exact value of cos(a-B)
Answer:Life table of males at age 30. Probability of dying between ages x and x+1
total population:
29–30 . . . . . . . . . . . . . . . . . . . . . . . . 0.001030
30–31 . . . . . . . . . . . . . . . . . . . . . . . . 0.001061
males:
29–30 . . . . . . . . . . . . . . . . . . . . . . . . 0.001420
30–31 . . . . . . . . . . . . . . . . . . . . . . . . 0.001448
white population
29–30 . . . . . . . . . . . . . . . . . . . . . . . . 0.001005
30–31 . . . . . . . . . . . . . . . . . . . . . . . . 0.001037
white males
29–30 . . . . . . . . . . . . . . . . . . . . . . . . 0.001372
30–31 . . . . . . . . . . . . . . . . . . . . . . . . 0.001399
non Hispanic white population
29–30 . . . . . . . . . . . . . . . . . . . . . . . . 0.001083
30–31 . . . . . . . . . . . . . . . . . . . . . . . . 0.001116
non Hispanic white males
29–30 . . . . . . . . . . . . . . . . . . . . . . . . 0.001477
30–31 . . . . . . . . . . . . . . . . . . . . . . . . 0.001503
Jacob, non Hispanic white male. 30 years old.
Probability that Jacob lives to be 30 years old.
Since the given probabilities are probabilities of dying, I think we simply subtract it from 1 to get the probability of living. We will use the probability of non Hispanic white male.
Probability of living to be 30 y.o.
29 - 30 : 1 - 0.001477 = 0.998523
30 - 31 : 1 - 0.001503 = 0.998497
Step-by-step explanation:
Life table of males at age 30. Probability of dying between ages x and x+1
total population:
29–30 . . . . . . . . . . . . . . . . . . . . . . . . 0.001030
30–31 . . . . . . . . . . . . . . . . . . . . . . . . 0.001061
males:
29–30 . . . . . . . . . . . . . . . . . . . . . . . . 0.001420
30–31 . . . . . . . . . . . . . . . . . . . . . . . . 0.001448
white population
29–30 . . . . . . . . . . . . . . . . . . . . . . . . 0.001005
30–31 . . . . . . . . . . . . . . . . . . . . . . . . 0.001037
white males
29–30 . . . . . . . . . . . . . . . . . . . . . . . . 0.001372
30–31 . . . . . . . . . . . . . . . . . . . . . . . . 0.001399
non Hispanic white population
29–30 . . . . . . . . . . . . . . . . . . . . . . . . 0.001083
30–31 . . . . . . . . . . . . . . . . . . . . . . . . 0.001116
non Hispanic white males
29–30 . . . . . . . . . . . . . . . . . . . . . . . . 0.001477
30–31 . . . . . . . . . . . . . . . . . . . . . . . . 0.001503
Jacob, non Hispanic white male. 30 years old.
Probability that Jacob lives to be 30 years old.
Since the given probabilities are probabilities of dying, I think we simply subtract it from 1 to get the probability of living. We will use the probability of non Hispanic white male.
Probability of living to be 30 y.o.
29 - 30 : 1 - 0.001477 = 0.998523
30 - 31 : 1 - 0.001503 = 0.998497
A person invest 7900 in an account growing at a rate allowing the money to double every 8 years. How much money would be in the account after 5 years, to the nearest dollar
Answer:
There will be $7,900.
Step-by-step explanation:
Seeing as it will double every EIGHT years, and 5 is less than eight, the amount will stay the same.
PLEASE HELP!! 30 Points :)
A student wants to know how many 1cm squares are needed to completely cover all the sides of a 10 cm by 8 cm by 12 cm box.
What measure is the student trying to calculate?
• Volume
• Height
• Surface Area
• Perimeter
Answer:
Surface Area is the correct Answer
Step-by-step explanation:
Hope this helps
Write an equation of the line below.
Answer:
y - 5 = -.4 (x + 5) or y = -0.4x + 3
Step-by-step explanation:
y - 5 = -.4 (x + 5) is the Point Slope Form
y = -0.4x + 3 is the Slope Intercept Form
Hope that this helps!
i really need help please
Answer:
Answer is C
Step-by-step explanation:
Because when you go across the X- axis you are just copying the triangle just in the "box" above.
PLEASE HELP!!
A plane is going to fly 400 miles at a planned speed of 570 mph. The flight will have an average headwind of w miles per hour the entire time, meaning the plane is flying directly against the wind. The time T, in hours, of the flight is a function of the speed of the headwind w, in mph, and can be modeled by
T(w) = 400/570 - W
a) What does T(150) mean in this situation?
b) At what value of w does the graph have a vertical asymptote? Explain how you know and what this asymptote means in the situation.
Step-by-step explanation:
t(150) = 400/570-150
=400/420
=20/21
=.95238
( HELP NEEDED ASAP !! )
The three-day forecast shows the following chance for rain. Friday 15%, Saturday 5% and Sunday 80%. Plot each probability using the number line. Indicate each as impossible, unlikely, equally likely, likely or certain.
Answer:
Step-by-step explanation:
15% indicates "unlikely."
5% indicates "very unlikely."
80% indicates "likely."
30 POINTS!!! Find the area of each shaded region to the nearest hundredth. Show ur work
Answer:
[tex] 25.74 \: {m}^{2} [/tex]
Step-by-step explanation:
For parallelogram:
Base (b) = 6 + 3 = 9 m
Height (h) = 6 m
For circle:
Diameter = 6 m
Radius (r) = 6/2 = 3 m
Area of shaded region = Area of parallelogram - Area of circle
[tex] = bh - \pi {r}^{2} \\ \\ = 9 \times 6 - 3.14 {(3)}^{2} \\ \\ = 54 - 28.26 \\ \\ = 25.74 \: {m}^{2} [/tex]
BRAINLIEST!!! See pic BELOW!!!
Answer:
160° = (10x + 50°) [Vertically Opposite Angles]
[tex]10x + 50 = 160 \\ 10x = 160 - 50 \\ 10x = 110 \\ x = \frac{110}{10} \\ x = 11[/tex]
Option A. 11 is the correct answer.
Larry is 4 times as old as his niece. Four years ago he was 6 times as old
as his niece was then. Find each of their ages now
9514 1404 393
Answer:
Larry: 40niece: 10Step-by-step explanation:
Let n represent the current age of the niece. Then 4n is Larry's current age. 4 years ago, the relationship was ...
6(n -4) = 4n -4
6n -24 = 4n -4
2n = 20
n = 10
Larry is 40; his niece is 10.
A number diminished by 51 is 73.
Answer:
124
Step-by-step explanation:
124 - 51 = 73
Help pleaseeeeeee!! Thank you!,
Answer:
Nice background!
Step-by-step explanation:
But I don’t know the answer sorry
Answer:
composite
Step-by-step explanation:
composite- is defined as the whole numbers that have more than two factors. whole numbers that are not prime are composite numbers, because they are divisible by more than two numbers. As shown in the image.
55percent of her mony was spent for food. Express 55 percent as a decimal.
Answer:
0.55
plz mark me as brainliest.
Answer:
0.55
Step-by-step explanation:
55/100=
55 divided by 100
=0.55 because the decimal point will move 2 numbers forward
find the y-intercept and the slope. HELP ASAP
y-int: 140
slope: -4
to find the slope u gotta use the (y2-y1)/(x2-x1) formula
120-140 = -20
5-0 = 5
-20/5 = -4
If the triangle and the rectangle have the same area, what is the value of n if m=6?
Answer:
n=3
Step-by-step explanation:
Triangle area: height*length*(1/2)
Rectangle area: width*length
Let's say x is the length, then our equation would be:
mx(1/2)=nx
we also know m is 6, so
6x(1/2)=nx
now we can solve for n
6x(1/2)=nx
3x=nx
3=n
n=3
Factor x2 − 8x + 9.
Answer options:
A. (x-9)(x-1)
B. (x+9)(x+1)
C. Prime
D. (x+9)(x-1)
x^2 − 8x + 9
What two numbers when multiplied yield 9 but when added yield -8?
There are no such numbers.
Use the quadratic formula.
Find the value of x.
B
10-X
3
D
E
X
2
С
А
x = [?]
Answer:
the must be 3 it couldn't be 10-x.