Answer:
need my points
Step-by-step explanation:
x + y = 12
x - y = 10
What is the value of the x-determinant for the system shown?
-12
-22
-2
Answer:
Step-by-step explanation:
-22
2) If x+y=6 and xy=5 find x-y?
Answer:
x - y = ± 4Step-by-step explanation:
Given
x + y = 6 and xy = 5To find
x - ySolution
(x - y)² = (x + y)² - 4xy = 6² - 4*5 = 36 - 20 = 16 = 4²(x - y)² = 4²x - y = ± 4Find the unit rate. Round your answer to the nearest hundredth.
357 miles in 5 hours
miles per hour
Answer:
71.4 mph
Step-by-step explanation:
357/5
71.4
Answer:
71.40
Step-by-step explanation:
357/5= 71.4 or 71.40 to the nearest hundredth.
which expression can be used to find the slope of a line containing the points (-3,7) and (7,-1)
Answer:
y2- y1
x2- x1
which would be,
-1 - 7
7- (-3)
Steps:
(-3, 7) (7, -1)
(x1,y1) (x2,y2)
Answer:
slope is delta y over delta x. In other words change in y over change in x. so if you take -3 (this is x) and 7 (this is also x) and you find the change. in this example it is positive 10. now you set that number aside and work on y now. so you now take 7 (this is y) and -1 (this is also y) and you find the change. It is -8. Finaly, since slope is delta y over delta x your answer is -8/10. -8/10 is your slope.
Hope this helped!
WILL GIVE 75 POINTS!! will send $2 IN CASHAPP!
Here are recipes for two different banana cakes. Information for the first recipe is shown in the table.
1st Recipe: y = 1.5x
2nd Recipe: y = 7/4x
If you used 4 cups of sugar, how much flour does each recipe need?
a. First: 2 cups, Second: 8 cups
b. First: 7 cups, second: 6 cups
c. First: 4 cups, second: 2 cups
d. First: 6 cups, Second: 7 cups
Step-by-step explanation:
H hvuvuvuvuvuv9yvig kg
David estimated that the band fundraiser would make $492.
The fundraiser actually made $600. What was the percent
error of David's estimate?
Answer:
18%
Step-by-step explanation:
if i am right
it would be subtract 492- 600 = -108
make this a positive value so 108
and divide it by the actual made amount
108/600 which would be 0.18 multiply this by 100 and you have 18% !!
this is what i remember doing!
let me know if it helped
2. H(x) is a quadratic function and H(1) = 1, H(-2) = 16, and H(3) = 11. What is the value of H(-1)?
A. 7
B. 3
C. -3
D. 8
E 5
Answer:
d
Step-by-step explanation:
8. A yard is closest in distance to a
a. kilometer.
b. centimeter.
C. meter.
d. millimeter.
Answer:
meter
Step-by-step explanation:
Answer:
Meter
Step-by-step explanation:
Kilometer is too long
Centimeter is too shot
Millimeter is way too short
Meter is the closest to yard
1 meter equals 1.09361 yards
PLEASE help me I’m failing !! Leonard wants to buy some snacks at the FFA snack machine. He has $5.00 on
him and he wants to buy 2 beef sticks (.50 apiece), 2 crackers and cheese (.75
apiece) and 2 chocolate milks ($1.00 apiece). How much change will he get back?
Answer:
He will have 0.50 chage back
Step-by-step explanation:
Answer:
.50 cents
Step-by-step explanation:
2 beef sticks price will add to $1. 2 crackers of cheese add to $1.50. And 2 chocolate milks add to $2. Now add them all and you will get .50 cents
ill give brainliest
Right triangle ABC is on a coordinate plane. Segment AB is on the line y = 2 and is 6 units long. Point C is on the line x = −3. If the area of ΔABC is 9 square units, then find a possible y-coordinate of point C.
5
6
7
8
Answer:
y-coordinate is 5 or -1.
Step-by-step explanation:
Point A is at (x, 2) and B is at (x+6, 2). Since AB must lie on the line y=2 and be 6 units long. Point C is on the line x = -3 . So let C be at (-3, y).
Since ΔABC is a right angle, then point C must have the same x-coordinate as point A. Therefore, A(-3, 2) and B(2, 2).
The area of ΔABC is 6. So,
9 = 1/2 (b)(h)
where b is the base and h is the height.
so b = 6 and h = AC
Solving this for C gives
9 = 1/2 (6)(AC)
18/6 = AC
3 = AC
9 = 1/2 (6)(AC)
18/6 = AC
3 = AC
Point C must lie 3 units above point A or 3 units below the point A. If it lies 3 units above, then it has a y-coordinate of 2 + 3 = 5.
If it lies 3 units below, it has a y-coordinate 2 - 3 = -1.
Therefore, y-coordinate is 5 or -1.
Step-by-step explanation:
Find the least common multiple of 12 and 18?
The mid segment of the triangle is 5x-1. Find the value of x.
Answer:
The value of x = 6
Step-by-step explanation:
The Midsegment of a triangle theorem states that the midsegment of a triangle is parallel to the third side of the triangle and it’s always equal to the one half or 1/2 of the length of the third side.
Now we can conclude that from the given triangle, the length of midsegment is 5x-1 which is parallel to the side of length 58, and will always equal to 1/2 of the length of the side of length 58.
Mathematically it means:
[tex]5x-1\:=\:\frac{58}{2}[/tex]
solving to find the length of x
[tex]5x-1=29[/tex]
Add 1 to both sides
[tex]5x-1+1=29+1[/tex]
[tex]5x=30[/tex]
Divide both sides by 5
[tex]\frac{5x}{5}=\frac{30}{5}[/tex]
[tex]x=6[/tex]
Therefore, the value of x = 6
Hannah filled her car at the gas station. She
bought 48.3 L, and her bill was $37.43.
What was the price of the gasoline, in cents
per litre ?
Answer:
43.43/43
Step-by-step explanation:
Someone please help me to solve this (8.99 x 10^9) (3 x 10^-5) (-6 x 10^-5)
Kinsley can illustrate 9 story book pages in 3 hours. How many pages can she
illustrate per hour?
Hint: Make a W.O.N. table to solve.
o A) 27 pages
B) 9 pages
o C) 1 page
D) 3 pages
Answer:
3 pages
Step-by-step explanation:
because if she reads 9 pages in 3 hours if you multiply each answer by 3 you should be able to find the right answer
Solve the problem involving consecutive integers.
If three times the smaller of two consecutive integers is added to four times the larger, the result is 109. Find the smaller integer.
A. 14 B. 45 C. 15 D. 16
Answer:
c.15
Step-by-step explanation:
smaller integer=x
larger integer=x+1
3x+4(x+1)=109
3x+4x+4=109
7x+4=109
7x=105
x=105/7
x=15
check:
3(15)+4(15+1)=109
45+64=109
Hi. Please I need help with these questions.
It's urgent . 50pts.
No jokes. This time
Answer No 10and 11
next question
11)
[tex] {x}^{2} + (k - 1)x - k = 0[/tex]
[tex](x - 1)(x + k) = 0 \\ x = 1 \\ x = - k[/tex]
they are equal so both are one
then k = -1
be careful the answer of q 10 is in the pictures
40 mangoes cost $16, if the rate remains the same, how many mangoes can be purchased with $4
Answer:
You can buy 10 mangoes for $4.
Step-by-step explanation:
40/16 = x/4
16x = 160
x = 10
Julie buys a new shirt. The original price of the shirt is $35.00, but it is on sale for 25% off. There is a 7% tax on the shirt. How much will Julie pay for the shirt?
Answer: $24.08
Step-by-step explanation: 25% off $35.00 is $22.50
and adding 7% tax which equals $1.50
so it adds up to 24.08
which of the following terminating decimals is equivalent to -1 3\4
Answer:
Step-by-step explanation:
-1 3/4 = -1.75.
does 3^4 equal the same sum as 4^3
A scoop of ice cream has a 3-inch diameter. How tall should the ice cream cone of the same diameter be in order to contain all of the ice cream inside the cone?
Answer:
12 inches
Step-by-step explanation:
Suppose the ice cream scoop has the shape of a sphere of a radius (r) inches.
Thus, the top of the cone will also have a radius (r) inches.
Let consider h to be the height of the cone in inches.
So, the objective is to make the volume of the scoop of the ice cream to be the same as the volume of the cone.
To do that; we need to equate both volumes together and make h the subject of the formula:
The volume of a sphere = 4/3 πr³ and the volume of a cone = 1/3πr²h
4/3 πr³ = 1/3πr²h
Multiply both sides by 3
4πr³ = πr²h
4r = h
h = 4(3)
h = 12 inches
To contain all the ice cream inside the cone, the height of the ice cream cone needs to be 12 inches tall
What answer it is . Will mark brainliest
Can someone help me find the measure of each angle in the triangle?
Answer:Remember -- the sum of the degree measures of angles in any triangle equals 180 degrees. ... So, the measure of angle A + angle B + angle C = 180 degrees. ... If a triangle is equilateral, what is the degree measure of each of its angles?
Step-by-step explanation:
Answer-
the sum of the degree measures of angles in any triangle equals 180 degrees. ... So, the measure of angle A + angle B + angle C = 180 degrees. ... If a triangle is equilateral, what is the degree measure of each of its angles?
if u guys can do this it will be awsome
uh?
Step-by-step explanation:
sooo what am i gonna do??
Answer:
Your basically supposed to color the parts based on the answering the 8 questions on your paper.
If you do not have an questions, then just color according to the numbers.
BTW I see the word "MATH" hidden.
Please help me before I fail... I really need some help
Answer:
sin 61 degrees = x/55
55 * sin 61 degrees = x
x is approximately 48.1 if I did the math right
Step-by-step explanation:
hope it helps! gl
URGENT PLEASE I AM TIMED URGENT SOLVE THE PROBLEM AND PLEASE, PLEASE EXPLAIN HOW YOU GOT YOUR ANSWER, GIVE DETAIL'S I WILL MARK AND 5 STARS
I'm pretty sure you just multiply the 1 1/4 by 3 because if 1 1/4 makes 10 muffins you need to make 3 more dozens so 1 1/4 times 3 equals 3.75
m+4/3=r solve for m
Answer:
m=r-4/3
Step-by-step explanation:
Put 4/3 on the other side of the equals sign and change the sign
Hope this helped, Have a Great Day!!
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[tex]m + \frac{4}{3} = r \\ [/tex]
Subtract sides - 4 / 3
[tex]m + \frac{4}{3} - \frac{4}{3} = r - \frac{4}{3} \\ [/tex]
[tex]m = r - \frac{4}{3} \\ [/tex]
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What is the image of the point
(
1
,
−
4
)
(1,−4) after a rotation of
18
0
∘
180
∘
counterclockwise about the origin?
Answer:
The image of point (1,-4) after a rotation of 180° counter clockwise about the origin is: (-1,4)
Step-by-step explanation:
Rotation means that a point is being moved in clockwise or counterclockwise direction with some angle.
The rotation can be done in 90, 180, 270 degrees.
Given point is:
(1,-4)
When a point (x,y) is rotated 180° counter clockwise its coordinates become (-x,-y) the negative of original point.
So for the given point the coordinates will become (-1,4)
Hence,
The image of point (1,-4) after a rotation of 180° counter clockwise about the origin is: (-1,4)
It costs $7.15 to rent a kayak for 1 hour at a local state park. The price per hour stays the same for up to 5 hours of rental. After 5 hours, the cost decreases to $5.75 per hour.
How much would it cost to rent a kayak for 6 hours?
Answer:
7.15 times 5 plus 5.75=$41.5
Step-by-step explanation:
Answer:
$41.50
Step-by-step explanation:
Multiply 7.15 by 5. This represents how much it costs for the first 5 hours.Add 5.75 to the product. This is the extra hour with the reduced price.