Mental Math
Solve
119*121
Answer:
14399
Step-by-step explanation:
break it down yall
119=100+19
121=100+21
100*100=1000
19*21=4399
add em up
need asapppp !!!!!!!
what is 2 ( c + 1) - 6 = 8
Answer:
x = 6
Whole equation: 2 ( 6 + 1 ) - 6 = 8
Step-by-step explanation:
2 ( c + 1 ) - 6 = 8
2c + 2 - 6 = 8
2c - 4 = 8
+4 +4
2c = 12
2 2
c = 6
whats the constant of the function?
Answer:
-4
Step-by-step explanation:
What is the value of x?
B
704
C
X
Enter your answer in the box.
30°
o
X=
So the right answer is 80 degree.
Look at the attached picture
Hope it will help you
Good luck on your assignment
Answer:
[tex]x = 80 \: \: degrees[/tex]
Step-by-step explanation:
[tex]70 + 30 + x = 180 \\ 100 + x = 180 \\ x = 180 - 100 \\ x = 80[/tex]
( Sum of the angles in a triangle is 180 degrees)hope this helps
brainliest appreciated
good luck! have a nice day!
Simplify the following expression.
(13x+ 9) + (38x+33y)
A. 51x + 4y
B. 22x + 46y
C. 22x + 42y
D. 51x+ 42y
Answer:
The answer would be D.
Step-by-step explanation:
All you have to do is combine like terms.
Pretend that the parenthesis aren't there. 13x + 9y + 38x + 33y.
When you combine like terms, you add or subtract the terms that have the same variable attached.
13x + 38x = 51x.
9y + 33y = 42y
51x + 42y.
I hope I helped.
Brainliest would be appreciated.
Melanie had 4 2/3 pounds of chopped walnuts. She used 1 1/4 pounds in a recipe. How many pounds of chopped walnuts did she have left?
Answer:
Step-by-step explanation:
To make the denominator the same on both sides you need to multiply 1/4 by three and make it 3/12 and multiply 2/3 by four to get 8/12 and then you just subtract to get 3 5/12
Answer: 3 5/12
Step-by-step explanation:
What does the inequality x + 3 ≤ 2 say?
A number and three is at most two.
A number and three is less than two.
A number and three is at least two.
A number and three is no less than two.
Answer:
A number and three is at most two.
Step-by-step explanation:
keywords :)
[tex] > bigger \: than \\ < smaller \: than \\ \leqslant is \: at \: most \\ \geqslant is \: at \: least[/tex]
Finding a Linear Regression Model
Warm-Up
Find a linear function that models the data in the table
2
y
f(x) =
-4
-6
-1
-1
0
1
2
4
3
7
Answer:
f(x) = 1.8x + 1
Step-by-step explanation:
I graphed the table on the graph below and found the equation of the line.
If this answer is correct, please make me Brainliest!
Which are the roots of the quadratic function f(q) = 02 - 125? Select two options.
O q = 5/5
O q = -5/5
q=3/5
q = -3/5
q=25/5
Please help me with this question I will mark you as the best answer if correct
Answer:
Line : y = ax + b, passes (0, 3) and (2, -3)
=> b = 3
=> 2a + b = -3
=> a = -6/2 = -3
=> Slope a = -3
=> Option D is correct
Hope this helps!
:)
Answer:
D is the answer
Step-by-step explanation:
Slope = rise / run
Slope = y2-y1 / x2-x1
Where coordinates are
(0,3),(2,-3)
So x1=0,y1=3 , x2=2 , y2= -3
Slope= -3-3/ 2-0
Slope = -6/2
Slope = -3
What is the next term of the geometric sequence?
7, 21, 63
First find the common ratio of this geometric sequence.
We will use [tex]r = \frac{a2 }{a1 }[/tex].
The second term is 21 and the first term is 7.
So we have [tex]\frac{21}{7}[/tex] and this reduces to [tex]\frac{3}{1}[/tex] or 3.
So, we take the last term in our geometric sequence
and multiply it by the common ratio we just found.
So we have 63 · 3 which is 189.
So the next term in this geometric sequence is 189.
Which expression is equal to 420−−√−345−−√?
115√
−115√
5√
−5√
Answer:
[tex]-\sqrt{5}[/tex]
I hope that this helps anyone in the future! I took the test and got a good grade thanks to the anwser above
Answer for brainliest!
Answer:
i think it's C
Step-by-step explanation:
Answer:
I think the answer is b but thats wat i think
What type of function best models the data in this table? Justify your reasoning.
x 2 5 8 11 14 17
y 16 25 34 43 52 61
Answer:
The function that models the data in this table would be a linear function.
Step-by-step explanation:
161-52=9
7-14=3
9/3=3
52-43=9
14-11=3
9/3=3
Students are voting on the color of T-shirts to wear on their field trip. There are 160 students-65 boys and 95 girls-going on the
field trip. A random sample of students is chosen. Surveying the random sample produced a representative sample of the
population. Which was most likely true of the representative sample?
VA
The representative sample contained all 160 students,
The representative sample contained more boys than girls.
The representative sample contained more girls than boys.
The representative sample contained an equal number of boys and girls,
Save and Exit
Next
Submit
Mark this and retum
Answer:
The representative sample contained more girls than boys.
Step-by-step explanation:
A "sample" of something is a small part of it. A "representative sample" is a small part of the students that represents them all. A random sample would not include all 160 students. It is more likely that there would be more girls than boys, than more boys than girls. In total, there are more girls than boys: 95 girls to 65 boys. It is more likely that a sample of the total students would be just like the total, but smaller.
Suppose that a teacher plans to give four students a quiz. The minimum possible score on the quiz is 0, and the maximum possible score is 10. What is the set of the four students scores that would make the standard deviation as large as it could be? A. 4,5,6,7 B. 0,0,10,10 C. 0,2,4,6 D. 1,4,9,10
Which of the following could be the equation of the function below?
On a coordinate plane, a curve crosses the y-axis at y = negative 1.5. It has a maximum at negative 1.5 and a minimum at negative 2.5. It goes through 2 cycles at pi.
y = 0.5 cosine (2 (x minus StartFraction pi Over 2 EndFraction)) + 2
y = 0.5 cosine (4 (x minus StartFraction pi Over 2 EndFraction)) minus 2
y = 0.5 cosine (4 (x + pi)) + 2
y = 0.5 cosine (2 (x minus pi)) minus 2
Answer:
y = 0.5 cosine (4 (x - pi/2)) - 2
Step-by-step explanation:
Taking the general form:
y = A cosine (Bx - Cπ)) + D
In the following case. the constants are:
y = 0.5 cosine (4x - 2π)) - 2
A: 0.5
B: 4
C: 2π
D: -2
The range of this function is:
range = [-|A|+D, |A|+D]
range = [-0.5-2, 0.5-2]
range = [-2.5, -1.5]
Which coincides with "It has a maximum at negative 1.5 and a minimum at negative 2.5"
At x = 0, the function value is:
y = 0.5 cosine (4(0) - 2π)) - 2
y = 0.5 - 2 = -1.5
As indicated in "a curve crosses the y-axis at y = negative 1.5"
The period of the function is:
period: 2π/B
period = 2π/4 = π/2 or 2 cycles at π
as described in "It goes through 2 cycles at pi."
Answer:
B) y = 0.5 cosine (4 (x minus StartFraction pi Over 2 EndFraction)) minus 2
Explanation:
Hope you have a great day!
What single rigid transformation maps TriangleABC onto TriangleA'BC'?
dilation
reflection
rotation
translation
Answer:
The answer would be reflection.
Step-by-step explanation:
the answer is reflection because you would reflect it over the axis.
Answer:
Reflection would map ABC to A'B'C'
Step-by-step explanation:
will give brainlist if its right!
Answer:
7/30
Step-by-step explanation:
or 7 out of thirty.
plz correct me if im wrong, ill fix it
Answer:
7/30
Step-by-step explanation:
First you need to add up all the frequency so you know the total number that they has spun which is 30. So you put the total frequency that number 4 has on. Which is 7/30
What is 3/4 + 1/3 ?
* 15p*
NEED HELP it’s a mastery grade!!
Answer:
2.49
Step-by-step explanation:
Answer:
2.49
Step-by-step explanation:
first u do 13.96 divde by five then to check it do 2.49 x 5
A plane intersects one cone of a double-napped cone such that the plane is parallel to the generating line.
A. hyperbola
B. circle
C. parabola
D. ellipse
five whole numbers are written in order. 4 6 x y 10. the mean and median of the five numbers are the same. work out the values of x and y
Answer:
x= 7
y= 8
Step-by-step explanation:
Select all that apply to the graph
Factor the polynomial.
125x^3+27
Answer: (5x+3) (25x^2-15x+9)
(5x + 3) (25x^2-15x + 9)
True or false.
The scale factor of a dilation is the ratio of a length of a side of the image to the corresponding side length of the pre-image.
Answer:
true
Step-by-step explanation:
Answer:
true i think
Solve for m. –5 − 5m = –6m
m= _
Answer:
M = 5
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
−5−5m=−6m
−5+−5m=−6m
−5m−5=−6m
Step 2: Add 6m to both sides.
−5m−5+6m=−6m+6m
m−5=0
Step 3: Add 5 to both sides.
m−5+5=0+5
m=5
Which line segment is a radius of circle A?
AB and AC ................................
Order the numbers from least to greatest
-2 2.5 -3 -3.5 -2,1/2
Answer:
-3.5<-3<-2.1<-2<2<2.5