Answer:
Daughter is 25, mother is 58
Step-by-step explanation:
Let m = age of mother now
Let d = age of daughter now
m - 14 = 4(d - 14)
m = 2(d + 4)
m - 14 = 4d - 56
m = 2d + 8
subtracting them gets
14 = -2d + 64
2d = 50.
d = 25
m = 58
Mr. Corsetti spends 2/3 of every year in Florida. How many months does he spend in Florida each year?
Answer:
8 estimate
Step-by-step explanation:
exact 7.98
PLEASE HELP!!
Maysa bought 9 kilograms of sugar for $10. How many kilograms of sugar did she get per dollar?
Answer:
0.9
Step-by-step explanation:
9÷10 =0.9 isisjsjsjsjjzjzjz
Help me please it’s due today :/
Answer:
68 degrees
Step-by-step explanation:
This triangle is an isosceles triangle which means that two sides have equal lengths and when two sides have equal lengths that means that two angles are the same. so you add 56 and 56 together and you get a sum of 112. all triangles add up to a degree of 180, so you therefore subtract 112 from 180 which gives you an answer of 68 degrees , therefore x is 68
what is the sign of f on the interval -5
Answer:
f(x) = x3 - 3x + 1
f'(x) = 3x2 - 3 = 3(x2 - 1) = 3(x+1)(x-1)
Find the critical numbers: set f'(x) = 0
3(x+1)(x-1) = 0 x = 1, -1
Check the sign of f'(x) on either side of each critical number. If f'(x) is positive on an interval, then f is increasing on the interval. If f'(x) is negative on an interval, then f is decreasing on the interval.
+ l - l + sign f'(x)
-------------------------------------
-1 1
f is increasing on (-∞, -1) υ (1, ∞)
f is decreasing on (-1, 1)
Which expression is equivalent to 4/9 times 7
Answer:
4/9 * 7 =3.11111111
Step-by-step explanation:
4/9 * 7 =3.11111111
Answer:
7 times 4/9
Step-by-step explanation:
Its simple lol
if cos x = sin(20+x) degrees and 0 degrees < x < 90 degrees, the value of x is
Answer:
x = 35°
Step-by-step explanation:
From the question given above:
cos x = sin(20 + x)
The value of x can be obtained as follow:
cos x = sin(20 + x)
Recall:
sin(A + B) = sinAcosB + cosAsinB
Therefore,
sin(20 + x) = sin20cosx + cos20sinx
cos x = sin(20 + x)
cos x = sin20cosx + cos20sinx
Collect like terms
cos x – sin20cosx = cos20sinx
cos x(1 – sin20) = cos20sinx
Divide both side by cosx
(1 – sin20) = cos20sinx / cosx
Recall:
Tan x = sinx / cosx
(1 – sin20) = cos20tanx
Divide both side by cos20
(1 – sin20) / cos20 = tanx
(1 – 0.3420) / 0.9397 = tanx
0.658 / 0.9397 = tanx
0.7 = tanx
Take the inverse of tan
x = tan¯ 0.7
x = 35°
3. Verify that the function
satisfies the three
hypotheses of Rolle's
Theorem on the given
interval. Then find all
numbers c that satisfies the
conclusion of Rolle's
Theorem.
y=-x² + 8x – 17
[3,5]
The octahedron can be constructed from the repetitive folding of ___.
A. equilateral triangles
B. squares
C. regular pentagons
D. triangles
Answer:
Triangles
Step-by-step explanation:
hotgsosbsga aksnsusgsv
Answer:
A. EquilateralTriangles BRAINLIEST PLS
Step-by-step explanation:
express 28x-35y=-7,inthe form ax+by+c=0and find the value of a,b,&c
Answer:
a = 28, b = -35 and c =7
Step-by-step explanation:
Given expression is :
28x-35y=-7
We need to express it in the form of ax+by+c=0 and then find the value of a,b and .
Adding 7 to both sides.
28x-35y+7=-7+7
28x-35y+7=0
or
28x+(-35y) +7=0
It is in the form of ax+by+c=0.
On comparing,
a = 28, b = -35 and c =7
Find the indicated term of each arithmetic sequence. 27th term: 59, 56, 53, 50....
Answer:
The 27th term is -22
Step-by-step explanation:
So we know 59 is the first term
and for every term, its -3
So multiply -3 by 27= -81
59-81
-22
Select all the intervals where f is decreasing
One Answer: Choice C) 0 < x < 1
==================================================
Explanation:
Let's go through the answer choices one at a time.
Choice A represents an increasing interval since the graph goes uphill as we move from left to right. The line through the points (-2, f(-2)) and (-1.5, f(-1.5)) has a positive slope. We can rule out choice A.Choice B is a similar story to choice A. The graph goes uphill when we move from x = -1 to x = 0, so the graph is increasing on the interval -1 < x < 0. We can rule out choice B.In contrast, choice C is a decreasing interval. Going from x = 0 to x = 1 has us move downhill. Choice C is the only answer.Choice D is false because choice C was shown to be true.The correct option is C
What is a decreasing function?A function whose value decreases as the independent variable increases over a given range is called a decreasing function.
Considering the options :
A) it represents an increasing interval since the graph goes uphill as we move from left to right. The line through the points (-2, f(-2)) and (-1.5, f(-1.5)) has a positive slope. We can rule out choice A.
B) It is a similar story to choice A. The graph goes uphill when we move from x = -1 to x = 0, so the graph is increasing on the interval -1 < x < 0. We can rule out choice B.
In contrast, C is a decreasing interval. Going from x = 0 to x = 1 has us move downhill. Choice C is the only answer.
Hence, the correct option is 0 < x < 1
Learn more about decreasing function, click;
https://brainly.com/question/14330051
#SPJ5
Which expression is equivalent to 3x + 6
Answer:
3x + 6 is equal to x + 2
Step-by-step explanation:
Answer: 3( x + 2)
Step-by-step explanation:
6
3x+6
3(x+2)
ASAP PLEASE. THANKS :)
What is the best way to determine whether a given point is a solution to a system of equations?
A. Substitute the x and y coordinates into one equation and check to see if they work.
B. Graph the equations and see if the point lies on both lines
C. Substitute the x and y coordinate into both equations and check to see if they work
D. Solve the system of equations and compare the answer to the given point
Substitute the x and y coordinate into both equations and check to see if they work is a best way to determine whether a given point is a solution to a system of equations.
What is the system of equation?One or many equation having same number of unknowns that can be solved simultaneously called as simultaneous equation. And simultaneous equation is the system of equation.
The best way to determine whether a given point is a solution to a system of equations is to substitute the x and y coordinate into both equations and check to see if they satisfy the equation.
And if the solutions do not satisfy the equation that means given x , y are not the solutions.
And if the unknowns are the solutions of system of the equation that
means the pair of point lies in the graph.
Therefore the answer is option C.
To learn more about the system of equation;
https://brainly.com/question/13729904
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What is 3/100 times 3
Answer:
3/100 times 3 is 0.09 or 9/100
Answer:
0.09
Step-by-step explanation:
3÷100=0.03
0.03×3=0.09
HELP HELPP HELP I WILL GIVE BRAINLEST WORTH 18 POINTS
Which equation can be used to calculate the area of the shaded triangle in the figure below?
A rectangle is shown with a width of 6 ft and a length of 16 ft. There is a diagonal line through the rectangle, and the bottom half is shaded in grey.
A. 2(16 × 6) = 192 square feet
B. 2(16 + 6) = 44 square feet
C. 1 over 2.(16 × 6) = 48 square feet
D. 1 over 2.(6 + 16) = 11 square feet
Answer:
D
Step-by-step explanation:
Answer:c
Step-by-step explanation:
PLEASE HELP ME ASAP!!
Answer:
Equation 8+4 12+4 16+4 M=8 B=20 Your welcome
Step-by-step explanation:
Find the missing side length. WILL GIVE BRAINLIEST
Answer:
13.318
Step-by-step explanation:
i would go into all the work, but my hands will hurt from typing. Hope this helps
Express this rate as a unit rate: $50 for 4 days of work. Note: You must label your unit rate.
Answer:
12.50 dollars per day
Step-by-step explanation:
This is a fraction equal to
50 dollars ÷ 4 days
We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 4
50 dollars ÷ 4
4 days ÷ 4
=
12.5 dollars
1 day
=
12.5 dollars
day
= 12.5 dollars per day
Directions: Match the product and quotients estimates below with the correct expression on the left
35 x 23
132168
173 X 18.4
999 208
998 x 211
11 10x20 170x180
11100020
11 1303170
11 1000 210
Answer:
Answer is in attached image.
Step-by-step explanation:
Given the expressions, for which we have to find the estimates as per the expressions on the left.
The given expressions are:
1) 35 [tex]\times[/tex] 23
2) 132 [tex]\div[/tex] 168
3) 17.3 [tex]\times[/tex] 18.4
4) 999 [tex]\div[/tex] 208
5) 998 [tex]\times[/tex] 211
Here, we need to find the rounded off numbers.
35 can be rounded to 40 and 23 to 20.
Therefore, equivalent to 35 [tex]\times[/tex] 23 is 40 [tex]\times[/tex] 20
132 can be rounded to 130 and 168 to 170.
Therefore, equivalent to 132 [tex]\div[/tex] 168 is 130 [tex]\div[/tex] 170.
17.3 can be rounded to 17.0 and 18.4 to 18.0.
Therefore, equivalent to 17.3 [tex]\times[/tex] 18.4 is 17.0 [tex]\times[/tex] 18.0.
999 can be rounded to 1000 and 208 to 210.
Therefore, equivalent to 999 [tex]\div[/tex] 208 is 1000 [tex]\div[/tex] 210.
998 can be rounded to 1000 and 211 to 210.
Therefore, equivalent to 998 [tex]\times[/tex] 211 is 1000 [tex]\times[/tex] 210.
The solution can be found in the attached image as well.
Pls help extra points
Answer:
9^7
Step-by-step explanation:
9 x 9 x 9 x 9 x 9 x 9 x 9 = 9^7
The "^" symbol means the number behind it is an exponent btw!
can somebody please help me with this and explain it?
Answer:
7. No, because the x-value 11 has two y-values pair with it.
8. Not a function
Step-by-step explanation:
If there is more than one y-values per x-value then it is not considered a function, same with Question 8.
Solve:
3 (x + 4) - 5 (x - 1) < 5
Answer:
x＞6
Step-by-step explanation:
-2x+17＜5
2x＞12
x＞6
Check all solutions to the equation. If there are no solutions, check 'None."
x² = 64
solve the following equation: 7/8 = -7
Answer:
lets just say -8
Step-by-step explanation:
Find the ordered pair that represents the vector from A(9,2) to B(-6,3). Then find the magnitude of AB
Given: f(x) = 1/x+5 and g(x) = x - 2.
What are the restrictiorts of the domain of f(g(x))?
0 x4 -5
O X-3
OX= 2
There are no restrictions.
Answer:
The restriction of the domain of f(g(x)) is that x cannot be 3.
Step-by-step explanation:
The first step to solve this question is finding the function, replacing the values. So
[tex]f(x) = \frac{1}{x+5}[/tex]
[tex]g(x) = x - 2[/tex]
[tex]f(g(x)) = f(x - 2) = \frac{1}{x - 2 + 5} = \frac{1}{x - 3}[/tex]
The function is a fraction, which means that the restriction is that the denominator cannot be zero. So
[tex]x - 3 \neq 0[/tex]
[tex]x \neq 3[/tex]
The restriction of the domain of f(g(x)) is that x cannot be 3.
3) 5.6 x 7.3
Use the expression to answer Rewrite the expression above using two whole numbers.
Scale 1 in=8 feet
So 1.24 in =
Answer:
9.92 feet or 9 feet 11 1/16 inches
Step-by-step explanation:
1.24X8 feet=9.92 feet or 9 feet 11 1/16 inches
write a polynomial function in it's factored form with zeros 5, -1, and 2
Answer:
[tex](x-5)(x+1)(x-2)[/tex]
Step-by-step explanation:
well as a general case we have
when we say that
[tex]x=y[/tex] it gives zero moving the y to the other side we have
[tex]x-y=0[/tex]
so in our case
[tex]\longrightarrow x-5=0\\\\\rightarrow x-(-1)=0\\\\\longrightarrow x+1=0\\\\\longrightarrow x-2=0[/tex]
just multiply the ones that have [tex]\longrightarrow[/tex]
and get
[tex](x-5)(x+1)(x-2)=0[/tex]
2a - 3b = -11
a + 3b = 8
Answer:
b = 3 and a = -1
Step-by-step explanation:
You have your given equation:
2a - 3b = -11
a + 3b = 8
You need to find what a and b is.
To find b:
2a - 3b = -11
-2a - 6b = -16
I multiplied a + 3b = 8 by -2. When you multiply a number you have to multiply all of them. You have to choose a number that would cancel out all of a.
So now your equation would look like this when you solve for b:
2a - 3b = -11
-2a - 6b = -16
-------------------
a - 9 = -27 then you divide -9 to -27 which is 3 so b = 3.
To find a:
2a - 3b = -11
a + 3b = 8
I multiplied a + 3b = 8 by -1 and 2a - 3b = -11 by -1 as well.
Your equation will look like this when you solve for a:
-2a + 3b = 11
-1a - 3b = -8
------------------
-3a = 3 then divide -3 to 3 which is -1 so a = -1.
Check to see if you have the correct answer by plugging in the number you got for a and b into the equation and solve.
1. 2(-1) -3(3) = -11
-2 - 9 = -11
2. -1 + 3(3) = 8
-1 + 9 = 8