Answer:
7x^2 - x -3
Step-by-step explanation:
(6x^2+3x) + (x^2 - 4x -3)
We have to use distributive property first to get rid of the parenthesis, so you simply have to multiply the positive (+) symbol with everything inside the second set of parenthesis.
+ * x^2 = x^2
+ * -4x = -4x
+ * -3 = -3
Now, we rewrite the equation which is
6x^2 + 3x + x^2 - 4x -3
Now you simply combine like terms.
6x^2 + x^2 = 7x^2
3x-4x = -x
The answer will be
7x^2 - x -3
Hope this helps!!
-Ketifa
(Can I get brainliest?)
what are the mean and medium to introduce peolpe
Which set of ordered pairs demonstrates a function?
A
(-2,-4), (-1, -2), (1, 2), (2, 4)
B
(-2, 4), (1, 2), (1, -2), (2.-4)
C
(-2,4), (-1, 2). (-1, 2), (-2,-4)
D
(-2, 4). (-1, 2), (-1, -2), (-2,-4)
The set of ordered pairs from listed options demonstrating a function is given by: Option A: (-2,-4), (-1, -2), (1, 2), (2, 4)
Firstly, we need the definition a function; based on which we can distinguish the correct set of ordered pairs.
What is a function?If we have two sets A and B as:
[tex]A = \{a_1, a_2, ... \}\\B = \{b_1, b_2, ... \}[/tex]
Then, function [tex]f: A \rightarrow B[/tex] is a connection of elements of A to B such that one element of A is connected to only single element of B, and not many.
The connected pairs are then written as:
[tex]\{(a_i_1,b_j_1), (a_i_2, b_j_2), ... \}[/tex] under the function f.
Now, for the listed ordered pairs, checking if they're functions or not:
Case 1: (-2,-4), (-1, -2), (1, 2), (2, 4)Each single input is connected with single output. So it is demonstrating a function.
Case 2: (-2, 4), (1, 2), (1, -2), (2.-4)In this case, 1 is connected to 2, and -2 both. Thus, it's not representing a function.
Case 3: (-2,4), (-1, 2), (-1, 2), (-2,-4)-1 is only connected to 2, but that does't help as -2 is connected to -4 and 4 both. Thus, it doesn't represent a function.
Case 4: (-2, 4), (-1, 2), (-1, -2), (-2,-4)-2 is connected to 4 and -4, and -1 is connected to 4 and -4, so its not a function.
Thus, the set of ordered pairs from listed options demonstrating a function is given by: Option A: (-2,-4), (-1, -2), (1, 2), (2, 4)
Learn more about functions here:
https://brainly.com/question/13395697
20 points
3) Yolanda is building a patio in her backyard. She is interested in using
both bick and woof for the flooring of the patio. Below is the plan she has
created for the patio. All measurement are in feet. Select the expressions
that represent the area of the patio? (SOL 6.7, 6.13) *
Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!
tinyurl.com/wpazsebu
3.14x(3x5)+34 hjghjhg
Answer:
81.1 is the answer ..,eksks
Four less than five times a number is 11. Find the number.
Answer:
The number is 3.
Step-by-step explanation:
5x - 4 = 11
5x = 15
x = 3
I hope everyone who sees this has a wonderful day :)
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: That is a common saying used in the USA as well as many other places. People enjoy when people say this because it helps them feel good and be grateful!
Explanation:
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Solve the simultaneous equation
x2+y2= 26
X - Y = 4
Nate scored a 990 on his first autempton
the SAT and a 1140 on his second attempt
Percent of change classify as a percent increase or decrease
Answer:
It was a percentage increase of 15.15%
Step-by-step explanation:
1140 is greater than 990, so it is an increase in scores
Percentage increase = (change in score / first score) x 100
change in score = second score - first score
1140 - 990 = 150
(150 / 990) x 100 = 15.15%
Can u guys please answer this question. This is extremely urgent
The cross-sections of the solids are sectors. Find the surface area, rounding your answer to 1 decimal place.
Answer:
The total surface area of the figure is approximately 10.2 m²
Step-by-step explanation:
The dimensions of the solid are;
The shape of the solid = An half cylinder
The diameter of the cylinder, D = 1.6 m
The length of the cylinder, l = 2 m
The surface area of the curved part of the solid = π × D × l ÷ 2
Therefore;
The surface area of the curved part of the solid = π × (1.6 m) × 2 m/2 ≈ 5.03 m²
The area of the curved surface, V = 5.03 m²
The area of the rectangular top, A = 1.6 m × 2 m = 3.2 m²
The area surface of the semi-circular sides of the figure = 2 × π·D²/4 ÷ 2
Therefore;
The area surface of the semi-circular sides of the figure = 2 ×π × (1.6 m)²/4 ÷ 2 ≈ 2.01 m²
The total surface area of the figure, A = 5.03 m² + 3.2 m² + 2.01 m² = 10.24 m²
The total surface area of the figure ≈ 10.2 m² (rounding to 1 decimal place)
Determine the value of each unknown angles.
HELP PLEASE DO ANY! I’ll give you brilliance
For D:
A triangle always has 180 degrees total. No more, no less. Seeing as though all the sides and angles are the same length, we can just divide 180 by 3, giving us 60. x = 60 degrees.
For E:
We can see there is a 90 degree symbol that surmises both angles. We know the lower angle is 30 degrees, so m must equal 60 degrees.
For G:
Same concept as D, except we gotta do a bit of math. A triangle always has 180 degrees, So we add 50 and 55 together and get 105. Subtract 105 from 180 and we get 75. Therefore, your angle is 75 degrees.
For H:
The 75 degree angle and m are parallel, with the same line passing through it, meaning that m is identical to the other angle. m = 75.
Answer:
d) x = 60
e) m = 60
g) q = 75
h) m = 75
Step-by-step explanation:
d) This image is that of an equilateral triangle, or a triangle whose sides are all equal (also known as a regular triangle). One property of an equilateral triangle is that all of its angles are also equal. Because the angles of a triangle add up to 180° (Triangle Sum Theorem), each angle would be 180/3°, or 60°, so x = 60.
e) This problem shows two complementary angles. Complementary angles are two angles that add up to 90°. Because one of the angles is given, you can find the other by subtracting the given one from 90°:
m = 90 - 30
m = 60
g) This is an image of a triangle with two given angles and the missing one is the third angle, q. You can solve for q using the Triangle Sum Theorem, which states that the three interior angles of a triangle add to 180°:
50 + 55 + q = 180
105 + q = 180
q = 75
h) This image shows two parallel lines cut by a transversal. You can find m using the Corresponding Angles Theorem, which states that if parallel lines are cut by a transversal, the corresponding angles will be congruent. Because the lines are parallel, you know that m = 75 since the 75° angle is its corresponding angle.
which pair of functions are inverse of eachother ?
Answer: a
Step-by-step explanation:
$140 spent on a 90-minute taxi ride
Jen measured the growth of a sunflower. In week one, it grew 2 1/2 inches. In week two, it grew 2 3/4 Inches. In week three, it grew 3 1/4 Inches. How much did the sunflower grow over all the three weeks?
Answer:
8 1/2 inches
Step-by-step explanation:
we add the fractions of growth over the 3 weeks
2 1/2 + 23/4 + 3 1/4 = 8 1/2
What is the measure of angle a
Answer:
77.79 degrees
Step-by-step explanation:
https://www.omnicalculator.com/math/triangle-angle
this is what I used to get it
Tyler is simplifying the expression 6 − 2 + 5 + 4. Here is his work: 6 − 2 + 5 + 4
(6 − 2) + (5 + 4)
4 + 9
13
PLSSS HELP ASAP I HAVE A TEST
Answer:-2(2x + 5)2 i think
Step-by-step explanation:(8+4x)/4x= 4(2 + x)/4x= (2 + x)/x
The diagram shows a solid metal cuboid.
The areas of three of the faces are marked on
the diagram.
The lengths, in cm, of the edges of the cuboid
are whole numbers.
The metal cuboid is melted and made into cubes.
Each of the cubes has sides of length 2.5 cm.
Work out the greatest number of these cubes that can be made.
You must show your working.
Answer:
6 cubes
Step-by-step explanation:
Considering the given cuboid, it can be deduced that;
length of the cuboid = 7 cm
width of the cuboid = 3 cm
height of the cuboid = 5 cm
Thus,
volume of the cuboid = length x width x height
= 7 x 3 x 5
= 105 cubic centimetres
The cubes has sides of length 2.5 cm.
volume of each cube = length x width x height
= 2.5 x 2.5 x 2.5
= 15.625 cubic centimetres
The greatest number of cubes that can be made = [tex]\frac{105}{15.625}[/tex]
= 6.72
The greatest number of cubes that can be made from the cuboid is 6.
PLEASE HELP SOMEONE I WILL GIVE YOU BRAINLIEST!!!!
Answer:
help with what exactly
Step-by-step explanation:
Answer:
What’s the question tho?
Step-by-step explanation:
Heera jogs 2 rounds of the park, whose length is 4.5 km and width is twice its length .Find the total distance covered by her .
Answer:
54 km
Step-by-step explanation:
The distance she covers would be equal to twice the perimeter of the park which is in the shape of a rectangle
perimeter of a rectangle = 2 x (length x width)
length = 4.5
width = 2 x 4.5 = 9
2 x (4.5 + 9) = 27km
In one walk, she covers a distance of 27km. In two walks, she covers a total distance of 27km x 2 = 54km
worth 20 points!!!!!
Answer:
polygon B = 20 meters
Step-by-step explanation:
polygon A : polygon B
3 : 4
15 : x
first take 15 and divide by 3, this would tell us how much it went up by:
15 ÷ 3 = 5
next, take 4 and multiply it by 5:
4 x 5 = 20
this means that polygon B is 20 meters
What is 300% of 15? Please show your work
Answer:
300/100*15=45 plz mark me branliest
4/7 is multiplied by a fraction less than one. Complete the explanation to show how the product compares to the factors.
Answer:
That is true!
Step-by-step explanation:
x/7=1/4
please help will give brainlest
Answer:
x=7/4
Step-by-step explanation:
cross multiply and divide both sides
The results of a survey are shown. In the survey, 28 students said their favorite dessert is ice cream. How many students were surveyed? Ice Cream: 35% Pie: 15% Candy: 23% Cake: 27%
Answer:
80 students
Step-by-step explanation:
35% = 28 students (Ice cream)
1% = 28 ÷ 35
= 0.8
Therefore,
100% = 0.8 × 100
= 80 students
Answer:
80 student
Step-by-step explanation:
28÷35×100 = 80
Milan is riding on a bike course that is 60 mlles long. So far, he has ridden 24 miles of the course. What percentage of the course has Milan ridden so far?
Answer:
your answer to the question is 40%
What is 4x - 18 + 3y?
Answer:
4x + 3y − 18
Step-by-step explanation:
Simply 4x - 18 + 3y = 4x + 3y − 18
Solve for x
I need help fast
Answer:
4x-1=1/2(10x-20)
8x-2=10x-20
-2x=-18
X=9
4) Ari can swim 2 laps per minute. Which equation represents the number of laps,
n, that Ari travels in m minutes?
a n = 2m
b. m = 2n
c. n = 2 +m
d. n = 2 divided by m
the difference between a number and 21
Answer:
n - 21
Step-by-step explanation:
"difference" implies subtraction here.
The difference between a number and 21 is n - 21.
Explain what steps you take to find the greatest common factor of 24 and 32
Answer:
So first what I do is I list the factors of 24 and 32. So for 24, I would write 1, 2, 3, 4, 6, 8, 12, and 24. Then for 32, I would write 1, 2, 4, 8, 16, and 32. Finally, I would look through both lists and try to find the greatest number in common, which would be 8.
Step-by-step explanation:
Please help me with this and find x!! Thank you, only if you know!
Answer:
x = 9.8
Step-by-step explanation:
to find x, use pythagorean theorem
[tex]a^{2} = c^{2} - b^{2}[/tex]
[tex]a^{2} = 14^{2} - 10^{2}[/tex]
[tex]a^{2} = 196 - 100[/tex]
[tex]a^{2} = 96[/tex]
[tex]\sqrt{a^2} = \sqrt{96}[/tex]
[tex]a = 9.7979[/tex] ⇒ 9.8
Answer:
The value of x=4√6cm or √96cm
Step-by-step explanation:
According to Pythagoras theorem,
Hypotenuse²=Perpendicular²+Base²
H²=P²+B²
Hypotenuse given=14cm
Base=10cm
Perpendicular=x
14²=P²+10²
196=P²+100
196-100=P²
96=P²
√96=P
4√6cm=x