Answer:
7/12
Step-by-step explanation:
4/12 + 3/12, is just 4+3/12, which is 7/12
select the two binomials that are factors of this trinomial.
x^2+4x-32
a. x-8
b. x+8
c. x+4
d. x-4
Answer:
b and d
Step-by-step explanation:
Sum = 4
Product = -32
Factors = 8 , (-4)
x² + 4x - 32 = x² + 8x - 4x - 4*8
= x(x + 8) - 4(x + 8)
= (x + 8)(x - 4)
Please help me
Find the volume of a cone with diameter of 12 inches and a height of 15 inches
I need to find the exact volume, approximate volume
Answer:
v=565.48668 or rounded up 565.49
Step-by-step explanation:
7. i need this answer QUICK!!
Graph the relation. Is the relation a function? Why or why not?
{(–1, 9), (0, –1), (–1, 4), (4, 9)}
No; a domain value has two range values.
Yes; there is only one domain value for each range value.
Yes; there is only one range value for each domain value.
No; a range value has two domain values.
Answer:
It's D. No; a range value has two domain values
Step-by-step explanation:
The domain is the set of all x or input values. We may describe it as the collection of the first values in the ordered pairs.
The range is the set of all y or output values. We may describe it as the collection of the second values in the ordered pairs.
A family just removed a big tree from their backyard. The diameter of the circular hole left behind is 7 feet across. Approximately how many square feet of gras
area where the tree once was?
Answer:
about 38.48 square feet
Write a numerical expression for the verbal expression. fourteen decreased by three times four
Answer: 14 - 3(4)
Step-by-step explanation:
Decreased just means subtract
A free diver can dive at a rate of -0.75 meters per second about how long will it take to reach a depth of -145 meters
Answer:
193 seconds
Step-by-step explanation:
For this problem you'll have to divide so do -145÷-0.75 and your answer will be 193 seconds
5x - 2y = 18
-5x + 3y = -22
In a mathematics Olympiad, a correct answer is
awarded 3 marks, but a wrong answer is awarded
-1 mark (i.e. 1 mark will be deducted). If no answer
is given, 0 marks will be awarded. Albert took part
in this Olympiad. There were 30 questions. He
answered 17 questions correctly and 5 questions
wrongly. How many marks did he score?
Answer:
So Albert scored = 26 scores it's true and correct ! thank you:)
Write the equation of the line with a slope of -5/4 and a y-intercept of 2.
a) y=1/4x+2
b) y=2x-5/4
c) y=-1/4x+2
d) y=-5/4x+2
Answer:
D, y=-5/4x+2
Step-by-step explanation:
the slope always comes before "x", and the y-intercept comes last when written in slope intercept. So y=-5/4x+2 is correct.
Susan made 2 identical necklaces, each having beads and a pendent. The total cost of the beads and pendents for both necklaces was $9.80. If the beads cost a total of 3.40, how much did each pendant cost?
Step-by-step explanation:
$ 3.15 each pendents .......
2
x
3
+
3
x
−
2
+
4
x
2
+
7
−
5
x
3
+
6
x
+
x
2=
Answer:
2
30+5z+5z=180
what is the value of z
Answer:
15
.......................
In the coordinate plane, AABC has vertices A(-4,6), B(2,6), and C(2.2).
After dilation, ADEF is shown in the plane.
What is the scale factor and the center of dilation that maps AABC to ADEF?
The scale factor is 2 and the center of dilation is point B.
The scale factor is 2, and the center of dilation is the origin.
1
O The scale factor is and the center of dilation is point B.
2
1
The scale factor is and the center of dilation is the origin.
2
9514 1404 393
Answer:
(d) scale factor 1/2; center: the origin
Step-by-step explanation:
Consider point B(2, 6). That gets dilated to make point D(1, 3). These coordinates are different, so the center of dilation is not point B. The ratios of the coordinates of D to B are 1/2 and 3/6 = 1/2. This is the scale factor k. (The coordinates of other corresponding points also have the same ratio.)
k = 1/2; dilation center: the origin
Five less than twice the value of a number is equal to three times the quantity of
four more than one-half the number. What is the
number?
a. Let x be the number. Write and solve an equation to find x. Show your work.
b. Does the solution of your equation solve the original problem? Explain.
Answer:
a) x = 34
b) yes, it checks out
Step-by-step explanation:
2x - 5 = 3(4 + 1/2x)
multiply both sides by 2 to eliminate fraction
2[2x - 5 = 3(4 + 1/2x)] = 4x - 10 = 24 + 3x
x - 10 = 24
x = 34
check
2(34) - 5 = 3(4 + 34/2)
68 - 5 = 3(4 + 17)
63 = 3(21)
63 = 63
if XY=10 and YZ=8.5 then XZ must be greater that ______, and less than _____.
Answer:
Your answer is
1.5<XZ<18.5
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Find the upper bound
Given triangle ABC, if angle A = 40, a = 65, and angle B = 25. what is the
length of b?
Answer:
x=50
Step-by-step explanation:
40+65+25+x=180
Combine like terms
130+x=180
x=50
(triangles = 180)
The height of a two story building is 6 meters. How tall is it in centimeters?
1 point
Answer:
600
Step-by-step explanation:
100 centimeter in 1 meter
the answer is six hundred
A large cube is made up of many small cubes. The volume of the large cube is 7.506×10^5mm^3. The volume of each small cube is 2.78×10^4mm^3. How many small cubes make up the large cube?
Answer:
27 small cubes
Step-by-step explanation:
Given that,
The volume of the large cube is [tex]7.506\times 10^5\ mm^2[/tex]
The volume of small cube is [tex]2.78\times 10^4\ mm^2[/tex]
We need to find how many small cubes make up the large cube. Let there are n small cubes. So, it can be calculated as follows :
[tex]n=\dfrac{7.506\times 10^5}{2.78\times 10^4}\\\\n=27[/tex]
So, there are 27 small cubes that make up of the large cube.
Need help big time this is due at 11:59 please help
Answer:
D) 12
Step-by-step explanation:
7 + 4 + 1 = 12
Hope that helps!
-scsb17hm
Answer:7
Step-by-step explanation:
in the pledges table on 40-49 7 people recieved more that 39 pledes
Triangle ABC is rotated counterclockwise using the origin as the center of rotation. The preimage and image are shown in the graph below. On a coordinate plane, triangle A B C has points (negative 4, negative 2), (negative 2, 1), (negative 2, negative 1). Triangle A prime B prime C prime has points (1.2, 4.2), (2, 1), (0, 2.9). Which rotation could have taken place?
Answer: it would be C. a 225° rotation
Step-by-step explanation: I got it correct
Answer:
C
Step-by-step explanation:
Which type of transformation is described by (x, y) (x + 2, Y-3)?
Answer:
I’m good at math but not that good
Step-by-step explanation:
Ewan has a mango farm that is 75 feet X
50 feet, and he also purchases a 20 feet X
10 feet plot of land. Find the total area of
the farm.
Answer:
3950 feet squared
Step-by-step explanation:
So first you have to multiply 75 by 50, so that is 3750.
Next you have to multiply 20 by 10 and you get 200.
Finally you had both 3750 and 200 in order to get 3950 and that is why the total area of the farm is 3950 feet squared.
anybody know the answer to 3m -8 + 6m = 37
Answer:
m = 5
Step-by-step explanation:
if you input the equation into M aTh wA y, you get the answer in seconds
-7<-2; add 9 to both sides the resulting inequality is
Answer:
2<7
Step-by-step explanation:
-7<=-2
-7+9<-2+9
2<7
Test Prep In a jar, 25% of the marbles are red.
If there are 45 red marbles in the jar, how many marbles are in the jar altogether?
Hint
0 70
0 180
O 20
0 11.25
they
Mathematics
180 marbles are in the jar.
What is an Arithmetic operation?Combining operands with a single arithmetic operator specifies an arithmetic operation. The built-in functions ADD, SUBTRACT, DIVIDE, and MULTIPLY can also be used to specify arithmetic operations. in general, we use PEMDAS for calculating various arithmetic operations.
Given 25% of the marbels ar red. and also given 45 marble are red.
Hence Total marble will be,
Total marbles = [tex]\frac{45* 100}{25}[/tex] = 180.
Therefore the total number of marbles in the jar is 180.
Learn more about arithmetic operations here:
https://brainly.com/question/25834626
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If a barrel is 1/5 full and holds 16 litres how many litres will it hold when 1/2 full how does it fill
Answer:
40liters
Step-by-step explanation:
Given data
1/5 full holds 16 liters
1/2 full barrel will hold???
Let 1/2 full barrel hold x liters
1/5 holds 16 liters
1/2 will hold x
cross multtiply
1/2*16= x/5
8= x/5
x= 8*5
x= 40 liters
Hence 1/2 full will hold 40liters
The population of bacteria in an experiment is increasing by 90% each dayIf there were 100 bacteria at the beginning of the experiment predict the number of bacteria in 5 days
Answer:
[tex] \boxed{460 \: bacteria}[/tex]
how many roots does this has?
x^2+(2√5x)+2x=-10
find Discriminant
Given:
The equation is
[tex]x^2+(2\sqrt{5})+2x=-10[/tex]
To find:
The number of roots and discriminant of the given equation.
Solution:
We have,
[tex]x^2+(2\sqrt{5})x+2x=-10[/tex]
The highest degree of given equation is 2. So, the number of roots is also 2.
It can be written as
[tex]x^2+(2\sqrt{5}+2)x+10=0[/tex]
Here, [tex]a=1, b=(2\sqrt{5}+2), c=10[/tex].
Discriminant of the given equation is
[tex]D=b^2-4ac[/tex]
[tex]D=(2\sqrt{5}+2)^2-4(1)(10)[/tex]
[tex]D=20+8\sqrt{5}+4-40[/tex]
[tex]D=8\sqrt{5}-16[/tex]
[tex]D\approx 1.89>0[/tex]
Since discriminant is [tex]8\sqrt{5}-16\approx 1.89[/tex], which is greater than 0, therefore, the given equation has two distinct real roots.
-14 = 4x - 2
what is the x ?
Answer:
X = -3
Step-by-step explanation: