An older person is 8 yes older than seven times the age of a younger person. The sum of their ages is 32. What are their ages?
What expression can be used to determine the total cost of buying "a" pounds of almonds for $4.45 per pound and "f" pounds of flour for $0.85 per pound?
Answer:
Step-by-step explanation:
What expression can be used to determine the total cost of buying "a" pounds of almonds for $4.45 per pound and "f" pounds of flour for $0.85 per pound?
Rewrite the function by completing the square.
f(x) = x^2 – 8x – 2
Answer:
[tex](x-4)^2-18[/tex]
Step-by-step explanation:
[tex](x^2-8x-2)\\= (x^2-8x+16)-18\\= (x - 4)^2 - 18[/tex]
Answer:
-4 and -8 (Khan)
(((QUICK QUESTION-WILL GIVE BRAINLYEST)))
Point (7,12) is rotated 1260° counterclockwise about the origin. What is the X-coordinate of the point after this rotation?
Given:
Point (7,12) is rotated 1260° counterclockwise about the origin.
To find:
The x-coordinate of the point after this rotation.
Solution:
If a point is rotated 360 degrees then its coordinates remains unchanged.
If a point is rotated 180 counterclockwise about the origin degrees, then
[tex](x,y)\to (-x,-y)[/tex]
We know that,
[tex]1260^\circ=1080^\circ+180^\circ[/tex]
[tex]1260^\circ=3\times 360^\circ+180^\circ[/tex]
After [tex]3\times 360^\circ[/tex] rotation the coordinates of points remains same, i.e., (7,12). So, after that (7,12) is rotated 180° counterclockwise about the origin.
[tex](7,12)\to (-7,-12)[/tex]
The point (7,12) becomes (-7,-12) after rotation of 1260° counterclockwise about the origin.
Therefore, the x-coordinate of the required point is -7.
SOMEONE PLEASE HELP ME!!!!!! I RLLY NEED THE ANSWER TO THIS!!!
The Pythagorean Theorem states that a² + b² = c?, where a and b are legs of a
right triangle and c is the hypotenuse. Are you able to simplify the Pythagorean
Theorem further to say that a + b = c? Explain.
Answer:
yes, you can square root to entire equation to get to a+b=c, the square root cancels out the 2
Step-by-step explanation:
find the angles for
a=?
b=?
c=?
Combine like terms.
y+3+2(y + 3) =
Please i need this for now
Answer:
3y+9
Step-by-step explanation:
Someone help me (10 points each person)
Answer:
x = 34 degrees
Step-by-step explanation:
there are many rules when it comes to parallel lines but this is called corresponding angles which means if we know these two are parallel lines then x and 34 will be the same therefore x will equal 34
Answer:
34
Step-by-step explanation:
WILL GIVE BRAINLIEST AND 20 POINTS!
To prevent fraying, a binding is attached to the outside of a circular rug whose radius is 3 ft. If the binding costs $1.35 per foot, find the cost of the binding. Use 3.14 for . (Round your answer to the nearest cent.)
$
Answer:
$4.71
Step-by-step explanation:
you would multiply the radius times pi (you would get 6.42 ft) and then divide that by 1.35 (simplifying it to 642 divided by 135 and you would then get 4.706...)which rounds to the answer
Subtract and simplify.
3/4 - 11/20=
Answer:
1/5
Step-by-step explanation:
3/4 = 15/20
15/20 - 11/20 = 4/20
Can be simplified to 1/5
Answer: 3/4 - 11/20 = 1/5 or in decimal form 0.2
Solve the system of equations:
y=2x
Y=x^2-3
Answer:
C
Step-by-step explanation:
The two solutions are (-1,-2) and (3,6)
need help asap 20 points. thank u in advance
Answer:
$50 and $6
Step-by-step explanation:
(x-6)(250-5x)=0
250x - [tex]5x^{2}[/tex] - 1500 + 30x = 0
-5x^2 + 280x - 1500 = 0
(divide everything by -5)
x^2 -56x + 300 = 0
(factorise)
(x-50)(x-6)=0
x=50, x=6
2. What is the slope. Make sure you reduce
Answer:-4/5
Step-by-step explanation:
(3,3)
(-2,-1)
Y2-y1/x2-x1
3- (-1)/ -2 -3
4/-5
Answer:
4 over 5 (4/5)
Step-by-step explanation:
Its extremely simple. You need to start from the lower point, and count up until you get to the same lime as the other point. Starting from the lower point, you count up 4 to get on the same line. Then, since its on the right, you count to the right 5, till you get to the dot, and you get 4/5. All you have to do is just count
What is the measure of the indicated angle ?
Answer: this is easy put attention to your teacher
Step-by-step explanation:
What is the volume (in cubic feet) of the composite shape rounded to the nearest whole number?
Answer:
Peppa does not know
Step-by-step explanation:
A teacher polled her students and determined 37 liked math and 44 liked history.
She has a total of 180 students. If there are 3000 students in the whole school. How
many students could you infer like something other than math and history.
Answer:
I’m pretty sure it’s 2919 students
Step-by-step explanation:
Ok 37-math
44-history
180 total students
99 students in the total didnt like them
3000 students in school.
-180
2919 students
Exponential form 1 x 1 x 1 x 1 x 1 x 1 x 1 x 1
Answer:
1
Step-by-step explanation:
of course the answer is one but you can't write it in exponential form because a regular keyboard doesn't contain it
Answer:
1
Step-by-step explanation:
An average sized person will burn about 350 calories in an hour of walking at a fairly brisk pace. How many calories would you burn if you walk an hour a day for 6 months
Answer: 65100 Calories
Step-by-step explanation:
Let's believe that there are 31 days in a month. Therefore, the number of days in 6 months will be:
= 31 × 6
= 186 days.
This means that the person will walk for 186 hours
The number of calories that will be burn will then be:
= 186 × 350
= 65100 calories
Brian bought 215 pounds of strawberries. In the afternoon his brother ate 56 of the strawberries. How many pounds of strawberries did his brother eat?
Hi there!
Step By Step:
We know that 215 pounds are about 215 strawberries since every strawberry are about 1 pound.
Let think about this... 215 pounds are 215 strawberries.
If his brother ate 56 of the strawberries, it means that his brother ate 56 pounds of the strawberry.
We can also think like this... 56/215
Final Result: 56 pound sof strawberries.
Expand 3(m + 7). Just answer this
Answer:
3m+21
Step-by-step explanation:
Answer:
3m+21
Step-by-step explanation:
3(m+7)
3m+21
Hope this helps!
ABCD is a square.
What is the measure of angle BAC?
Answer:
30 degrees
Step-by-step explanation:
I think that every corner is a 90 degree angle so 90/2 is 30
Can someone do this please
Answer:
x = [tex]\sqrt{5}[/tex]
Step-by-step explanation:
[tex](\sqrt{21} )^{2}[/tex] = 4^2 + ^2
21 - 16 = x^2
x = [tex]\sqrt{5}[/tex]
Which situation can be represented by y = 10x?
Answer:
56 ok
Step-by-step explanation:
What is the slope of a line that is perpendicular to the line represented by the equation y – 5x = 5?
Answer:
5 1/5
step-by-step explanation
1. Bill decided to buy six books on history instead
of four books on politics. It follows, then, that
the opportunity cost of each history book was ______
books on politics.
Answer: 2/3 books on politics
Step-by-step explanation:
The opportunity cost of something is the next best alternative that you would have taken if you did not instead go for the option that you took.
Opportunity cost here is the number of books on politics that Bill had to give up to get a single book on history.
= Number of politics books / Number of history books
= 4 / 6
= 2/3 books on politics
Bill gave up 2/3 books on politics to get a single history book.
Can 0.1/100 be simplified?
Answer:
Yes, the answer would be 0.001
Step-by-step explanation:
X varies directly with Y.
When X=2, Y=3
Find a formula connecting X and Y.
After 4new students joined a class the class had 32students which equation can be used to find n the number of students in the class before the 4new students joined
Answer:
n+4=32 is the answer
What is the output of the function when the input is 10? On the graph plot this point and label its coordinates
Answer:
Output value = 20
Step-by-step explanation:
Graph of any function is made up of two values → Values on x axis and Values along y axis.
x values represent the input values and y values represents the output values.
For every x value there is a y value because of which the data set is called to a function.
In other words, a function can't have two output values for a single input value.
If the input value of function is = 10
Then for x = 10, out value (along y axis) will be = 20
Therefore, Output value of the given function is 20.
1. The average Third grade student can read 60 words in 5 minutes What is the average reading rate per minute?
Answer:
12 words per minute
Step-by-step explanation:
60/5=12