[tex]\\ \sf\longmapsto 2a^2-2ab-3b^2-9[/tex]
[tex]\\ \sf\longmapsto 2(3)^2-2(3)(2)-3(2)^2-9[/tex]
[tex]\\ \sf\longmapsto 2(9)-12-3(4)-9[/tex]
[tex]\\ \sf\longmapsto 18-12-12-9[/tex]
[tex]\\ \sf\longmapsto 6-18[/tex]
[tex]\\ \sf\longmapsto -12[/tex]
Answer:
3
Step-by-step explanation:
2(3)^2 - 2(3)(2) - 3(2)^2 + 9
2(9) - 12 - 3(4) + 9
18 - 12 - 12 + 9
= 3
Answer from Gauth math
Find the lateral area of this square
based pyramid.
10 in
5 in
Answer:
The lateral area of this square pyramid is 100 in^2
Step-by-step explanation:
The lateral area of a polyhedron is the added area of all lateral faces (faces on the side) excluding the bases.
In this case, the lateral sides of the square pyramid are the 4 triangular faces on the sides.
AREA OF ONE TRIANGULAR FACE (given by the formula 1/2 x bh):
1/2 x 10 x 5 = 25
Multiply that by 4 since all 4 triangular faces are similar:
25 x 4 = 100
So the lateral area of the square pyramid is 100 in^2.
Please rate my answer once you know its score! :DD
The University of Detroit-Mercy is 3/4 miles from Dana's house. Marygrove College is 2/5 miles from her house. What is the difference in the two distances?
Answer:
0.35 as a decimal and 7/20 as a fraction
Step-by-step explanation:
in triangle ABC the measure of angle A is 90. the length of AB is 1 unit the length of AC is 8 unit, find the legth of BC
Answer:
8.06
Step-by-step explanation:
by using pythagoras
BC^2=1^2+8^2
BC^2=1+64
BC^2=65
BC=√65
BC=8.06
Someone please help me Find 35% of 250
[tex]\\ \bull\sf\longmapsto 250\times 35\%[/tex]
[tex]\\ \bull\sf\longmapsto 250\times \dfrac{35}{100}[/tex]
[tex]\\ \bull\sf\longmapsto 5\times \dfrac{35}{2}[/tex]
[tex]\\ \bull\sf\longmapsto \dfrac{175}{2}[/tex]
[tex]\\ \bull\sf\longmapsto 87.5[/tex]
[tex]\bf \large \implies \: \frac{35}{100} \: \times \: 250 \\ [/tex]
[tex]\bf \large \implies \: \frac{35}{10 \cancel0} \: \times \: 25 \cancel0[/tex]
[tex]\bf \large \implies \: \frac { \cancel{35} \: \: ^{3.5} }{ \cancel{10}} \: \times \: 25[/tex]
[tex]\bf \large \implies \: 3.5 \: \times \: 25[/tex]
[tex]\bf \large \implies \: 87.5[/tex]
is {3,…} a defined set
Answer:
is infinite set... because dots meaning non stop
Will Mark Brainlest helppp plss
Answer:
you can ask from it will be easy for you actually I don't know answern
Find the missing value.
Hint: Use the number line to find the missing value.
4-
-2
开
出 Hy
15
-10
-5
-15
0
5
10
Answer:
6
I hope this helpedSuppose average pizza delivery times are normally distributed with an unknown population mean and a population standard deviation of six minutes. A random sample of 28 pizza delivery restaurants is taken and has a sample mean delivery time of 36 minutes. Find a 90% confidence interval estimate for the population mean delivery time.
Answer:
90% confidence interval = (34.069,37.931)
Step-by-step explanation:
90% 1.645
Xbar / Point Est. 36
µ 0
σ 6
n 28
Confidence Interval
(34.069,37.931)
x+1=0
Giải hộ em với
Answer:
x = -1
Step-by-step explanation:
-Subtract 1 from both sides of the equation
x + 1 = 0
x + 1 - 1 = 0 - 1
-simplify
x = -1
Find the equation of the linear function represented by the table below in slope-intercept form.
Help plzz will give brainiest
Answer:
y = 2x+4
Step-by-step explanation:
First find the slope
m = ( y2-y1)/(x2-x1)
= ( 12-6)/(4-1)
= 6/3
= 2
The slope intercept form is
y = mx+b where m is the slope and b is the y intercept
y = 2x+b
Using a point from the table
10 = 2(3)+b
10 = 6+b
10-6 = b
4=b
y = 2x+4
Write the greatest and the least numbers formed by the digits 4, 2, 3, 5, 6 and add these numbers.
and those who will give it's correct answer I will make him /her brainlist
Answer:
Greatest number is 65432
Lowest number is 23456
Step-by-step explanation:
[tex]65432+23456=88888[/tex]
What is an example in your house of a point ?
Answer:
Step-by-step explanation:
Nothing. A point is dimensionless. Ugh what an awful LOL.
How about the tip of a candle that has never been lit?
Maya express charges 15 dollar for each person and great holiday charges fixed 84dollar and extra 12 dollar for a person. If the total amount charged by each company is same find the number of people going on holiday
Step-by-step explanation:
15 dollar for each
15*70*12
then 84*70
total amount. the above
Answer:
:>
Step-by-step explanation:
15 dollar for each
15*70*12
then 84*70
total amount. the above
(4 - 5)^2 + ( 2 + 1)^2
——————————
( 4 + 2)^2
Simplify using the order of operation
Answer:
[tex] \frac{5}{18} = 0.27[/tex]
Step-by-step explanation:
[tex] \frac{(4 - 5)^{2} + {(2 + 1)}^{2} }{ {(4 + 2)}^{2} } [/tex]
[tex] = \frac{ {( - 1)}^{2} + {3}^{2} }{ {6}^{2} } [/tex]
[tex] = \frac{1 + 9}{36} [/tex]
[tex] = \frac{10}{36} [/tex]
[tex] = \frac{5}{18} [/tex]
= 0,27
answer please
explain
answer
please
thanks
giving brainiest out (correct answers only to get brainly)
Answer:
0Step-by-step explanation:
0 is the correct answer
Answer:
0
Step-by-step explanation:
The natural numbers are numbers that you can count on your fingers
1,2,3,4,5.......
Whole numbers include 0
0,1,2,3,4.....
Someone plzzzz help I don’t get this at all
Answer:
Option B
Step-by-step explanation:
The slope of the line BC is,
[tex] \frac{ - 2 - 8}{7 - 3} [/tex]
[tex] = \frac{ - 10}{4} = - \frac{5}{2} [/tex]
Since AD is altitude to BC, we can say AD is perpendicular to BC, so the slope of the line AD which is perpendicular line to BC will be,
[tex] \frac{2}{5} [/tex]
Duncan took a math quiz last week. There were 55 problems on the quiz and Duncan
answered 40% of them correctly. How many problems did Duncan get correct?
Answer: Duncan got 22 questions correct
Step-by-step explanation:
Total questions in quiz = 55
Total answered correctly by Duncan = 40% of 55
Total answers he got correct = 40% of 55
= 40/100×55
= 22
Therefore Duncan got 22 questions correct
please click thanks and mark brainliest if you like :)
the adjoining circle with O has a radius of 14cm ABCD is a square drawn inside the circle calculate the area of the shaded region plzz any help plzz
Answer:
bro just make me the branilist
A medical school admissions officer was interested in whether there is a difference in MCAT test scores (the standardized test used for medical school admission) between (1) biological sciences majors, (2) social science majors and (3) math majors. The admissions officer randomly sampled 50 students from each of these majors who applied to medical school in 2014 and recorded their MCAT score. Here are the three sample standard deviations for the MCAT scores for the three groups (biological sciences majors, social sciences majors, math majors): Column Std. Head Biological Sciences 5.3115216 Social Sciences 6.1661669 Math 4.7821787 Based on this information, do the data meet the condition of equal population standard deviations for the use of the ANOVA? Yes, because 6.17 − 4.78 < 2. Yes, because 6.17/4.78 < 2. No, because the standard deviations are not equal.
Answer:
Yes, because 6.17/4.78 < 2
Step-by-step explanation:
To test for equal standard deviation ;
Condition is met if the ratio of the large sample standard deviation to the smaer sample standard deviation is less than 2
Sample standard deviation;
Sciences 6.1661669
Math 4.7821787
Biological Sciences 5.3115216
The largest sample standard deviation = 6.1661669
The smallest sample standard deviation = 4.7821787
F statistic = 6.1661669 / 4.7821787 = 1.2894053
F statistic < 2 ; Hence, condition for equal standard deviation is met.
What is the behavior of the graph y=2x3+x2−7x−6 at each of its zeros
At the given zeros of the function (-1.5, -1, and 2), the graph will behave like a sine curve, cutting the x-axis at three points.
The given polynomial expression:
y = 2x³ + x² - 7x - 6
The zeros of a polynomial equation are the values of x at which the given function equals zero.
The first zero of the given function is at x = 2;
f(2) = 2(2)³ + (2)² - 7(2) - 6
= 16 + 4 - 14 - 6
= 20 - 20 = 0
The second zero of the given function is at x = -1;
f(-1) = 2(-1)³ + (-1)² - 7(-1) - 6
= -2 + 1 + 7 - 6
= - 8 + 8 = 0
The third zero of the given function is at x = -1.5;
f(-1.5) = 2(-1.5)³ + (-1.5)² - 7(-1.5) - 6
= - 6.75 + 2.25 + 10.5 - 6
= - 12.75 + 12.75 = 0
The zeros of the given function include;
----(-1.5)-------(-1)------------------------------(2)--------
Therefore, at the given zeros of the function (-1.5, -1, and 2), the graph will behave like a sine curve, cutting the x-axis at three points.
To learn more about zeros of a function, please visit: https://brainly.com/question/12316127
how many terms of the series 1+4+7........will add up to 425?
Answer:
17 terms
Step-by-step explanation:
Let the number of terms be n which will add up to 425.
So, 425=(n/2)*(2+(n-1)*3). 850=n*(3n-1), n=17 or - 50/3 but n can't be negative, so the answer is n=17
Convert 5π∕6 radians to degrees. Question 1 options: A) 25° B) 150° C) 150π° D) 1080°
Step-by-step explanation:
Hi there!
Given;
= 5(π\6)
We have;
π = 180°
Keeping value of π in the question;
= 5(180°/6)
= 5*30°
= 150°
Therefore, answer is option B.
Hope it helps!
The scores of players on a golf team are shown in the table. The team’s combined score was 0. What was Travis’s score?
Answer:here’s the table
Step-by-step explanation:
Celina -3
Jannie 3
Sami 1
Ted 4
Travis ??
Answer:
Step-by-step explanation:
-5
In the figure shown, line AB is parallel to line CD. What is the measure of angle x? Explain your answer.
Answer:
x = 53°
Step-by-step explanation:
The angle 115° and the angle formed by the sum of x+62° are external alternates angles, so it means they have the same measure, and you can find the value of x doing:
115°- 62° = 53°
PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER PLS GIVE ME A STEP BY STEP EXPLANATION!!
Answer:
B
Step-by-step explanation:
Total surface area=Sum of all figure area
=380+928+380+608=2296
Help me please i have no idea how to do this
Simplify the following without a calculator: (5)(6+4)
Answer:
your answer is 50 I hope it's helps you t
Answer:
50
Step-by-step explanation:
(5)(6+4)
5(6)+5(4)
30+20
50
THANK YOU
A candybar box is in the shape of a triangular prism. the volume of the box is 1,200 cubic centimeters.
Part A; what is the height of the base. show your work.
Part B; What is the approximate amount of the cardboard used to make the candybox? Explain how you got your answer.
Look at this cone:
,,
We know
[tex]\boxed{\sf \star TSA_{(Cone)}=\pi r(r+\ell)}[/tex]
[tex]\\ \sf\longmapsto TSA_{(Old\:Cone)}=2
\dfrac{22}{7}\times 2(2+3)[/tex]
[tex]\\ \sf\longmapsto TSA_{(Old\:Cone)}=\dfrac{44}{7}(5)[/tex]
[tex]\\ \sf\longmapsto TSA_{(Old\:Cone)}=\dfrac{220}{7}[/tex]
[tex]\\ \sf\longmapsto TSA_{(Old\:Cone)}=31.4ft^2[/tex]
Now
New slant height =2(3)=6cmNew radius=2(2)=4cm[tex]\\ \sf\longmapsto TSA_{(New\:Cone)}=\dfrac{22}{7}\times 4(4+6)[/tex]
[tex]\\ \sf\longmapsto TSA_{(New\:Cone)}=\dfrac{88}{7}(10)[/tex]
[tex]\\ \sf\longmapsto TSA_{(New\:Cone)}=\dfrac{880}{7}[/tex]
[tex]\\ \sf\longmapsto TSA_{(New\:Cone)}=125.7cm^2[/tex]
So
[tex]\\ \sf\longmapsto \dfrac{TSA_{(New\:Cone)}}{TSA_{(Old\:Cone)}}=\dfrac{125.7}{31.4}[/tex]
[tex]\\ \sf\longmapsto \dfrac{TSA_{(New\:Cone)}}{TSA_{(Old\:Cone)}}=\dfrac{4}{1}[/tex]
[tex]\\ \sf\longmapsto\underline{\boxed{\bf{ {TSA_{(New\:Cone)}}:{TSA_{(Old\:Cone)}}=4:1}}}[/tex]
Find the distance between the two points in simplest radical form.
(7,-1) and (3,8)
Answer:
Submit Answer
attempt 1 ou
Answer:
sqrt( 97)
Step-by-step explanation:
To find the distance between 2 points
d = sqrt( (x2-x1)^2 + (y2-y1)^2)
= sqrt( (3-7)^2 + (8 - -1)^2)
= sqrt( ( -4)^2 + (8+1)^2)
= sqrt( 16+9^2)
= sqrt(16+81)
= sqrt( 97)
