Answer:
Step-by-step explanation:
Use the slope intercept formula.
y = mx + b
m = slope
b = y intercept
y = -2x + 1
Sara’s mother is now four times as old as Sara. In five years, she will be three times as old as Sara. What are their ages now?
Answer:
Sara's mother age : 40 years
Sara's age : 10 years
Step-by-step explanation:
Let Sara's mother age be x
and Sara age be y
Given , Sara's mother is now four time as old as Sara
• x = 4y ...1
also, in five years , she will be three times as old as Sara
In five years , Sara's mother age :- ( x + 5 )
Sara age :- ( y + 5 )
according to the question,
x + 5 = 3 ( y + 5 )
x + 5 = 3y + 15
x - 3y = 10 ... 2
putting value of x from 1 into 2
4y - 3y = 10
y = 10
putting y value in 1
x = 4y = 4 ( 10 ) = 40
So, Sara's mother age is 40years
and Sara's age is 10years .
In which quadrant(s) do the graphs of y=x^2 and y=3x+10 intersect?
Answer:
Quadrants I and II
Step-by-step explanation:
y = x²
y = 3x + 10
x² = 3x + 10 Substitute x² for y
x² - 3x - 10 = 0 set the equation = 0
(x - 5) (x + 2) Factoring
x - 5 = 0 ; x + 2 = 0
x = 5 or x = -2
Now solving the y
y = x² or y = x²
y = (5)² or y = (-2)²
y = 25 or y = 4
The points of interception is points (5, 25) or (-2, 4)
(5, 25) in Quadrant I ; (-2, 4) in Quadrant II
WHAT IS THIS. draw the line x=2 on the grid. please help
Answer The picture shows you where to place your line
Step-by-step explanation:
I need help asap please help me
Answer:
B. Alternate exterior angles
Step-by-step explanation:
A scale drawing for a plot of land is shown below.
In the drawing, 5 cm represents 6 m.
Assuming the backyard is rectangular, find the area of the real backyard.
Answer:
72m
Step-by-step explanation:
since 5cm is 6m, just take 5 and make it 6, so 10cm is 12m and 5cm is 6m
multiply, and you get the answer
2b - 3 / 3 (fraction) - 5 = 10.
Solve for B
Step-by-step explanation:
2b - 3/3 - 5 = 10
2b - 1 - 5 = 10
2b - 6 =10
2b -6 +6 = 10 +6
2b = 16
b = 8
Guven O centre of the circle, find x
I just want to check my answers. my answer is x= 24.5⁰
If it is wrong is tell me in the comments.
and if you know the right answer, please answer the question with full explanations.
thanks.
Answer:
x= 21 is correct answer because x and 21° are opposite angles and opposite angles are congruent
Answer:
21 degrees
Step-by-step explanation:
Angle subtended by the arc is half the angle at the centre of the circle(98 degrees).
Write the slope-intercept form of the equation of the line described.
Through: (5, 4), parallel to y = x-5
Step-by-step explanation:
Find the slope of the parallel line
When two lines are parallel, they have the same slope.
⇒ if the slope of this line = 1
then the slope of the parallel line (m) = 1
Determine the equation
We can now use the point-slope form (y - y₁) = m(x - x₁)) to write the equation for this line: (5, 4)
⇒ y - 4 = 1 (x - 5)
∴ y - 4 = x - 5
We can also write the equation in the slope-intercept form by making y the subject of the equation and expanding the bracket to simplify:
since y - 4 = x - 5
y = x - 1
To test my answer, I drew a Desmos Graph with the information provided in the question and my answer.
I need help solving this problem
x=8
I hope this helps I would appreciate brainliest if possible :)
Answer:total is 180. Subtract 100. Then it’s 80
Step-by-step explanation:
180-100=80 degrees. It applies for the ones across.
In basic the answer is x=80
Please help! It’s an emergency I’ll mark brainliest for a right/real answer!
Answer:
refer to attachment
Step-by-step explanation:
hope it helps you
19th. = 120 yds
plzz plzzz plzz mark as brainliest.
Lucy spent $3.19 on a sparkly headband and $2.67 on a shiny bracelet. How much more did Lucy spend on the sparkly headband?
Answer:
$0.52
Step-by-step explanation:
3.19 (headband) - 2.67 (bracelet) = 0.52
Question 1
o
In A CDE, U is the centroid, UK = 12, EM = 21, and UD = 9. Find CU.
-
U 12
K
9
Next Question
M
Check Answer
2021 McGraw-Hill Ede
Answer:
is it this?I just searched
A company manufactures plastic bags. If each month it sells 518 plastic bags for $0.05 per bag, how much money could the company make in a year?
Will give brainlessly if correct
Answer:
$310.8 khoydoydydyiivkfi
Write the expression as a power and evaluate it. 8*2^7
Answer:
1024
Step-by-step explanation:
The expression can be written as [tex]8 * 2^7[/tex]
What is power?An algebraic expression known as a polynomial requires that all of its exponents be whole numbers. Any polynomial must have variable exponents that are non-negative integers. Although a polynomial contains variables and constants, we are unable to divide a polynomial by a variable.
Example: The standard form of the polynomial 5 + 2x + x² is expressed.
We shall first determine the polynomial's degree before expressing it in standard form.
The degree of the provided polynomial is two. Write the phrase containing the polynomial's degree.
Given:
8*2^7
The above expression can be written as
[tex]=8 * 2^7[/tex]
= 8 x 128
= 1024.
Hence, the expression can be written as [tex]8 * 2^7[/tex]
Learn more about power here:
https://brainly.com/question/2289248
#SPJ2
I'll give Brainliest and 45 points: A box of cooked whole wheat spaghetti contains 8 servings and has 28 grams of fiber.
How much fiber per serving does the spaghetti have?
Answer:
3.5 grams
Step-by-step explanation:
8/8=1, 28/8=3.5
3.5 grams per serving
list the side of the triangle in order from shortest to longest.
Answer:
shortest to longest -
B-77
A-59
C-44
Step-by-step explanation:
To put the sides in order of longest to shortest, first find the largest angle -- the longest side is opposite this angle. Then, find the second largest angle and the side opposite from it to find the next largest angle, and finally, the shortest side will be opposite the smallest angle.
I HOPE THIS IS CORRECT!! SORRY IF NOT!!
Distributing the - sign outside the parentheses -(6y-9.6z+3)
Answer:−6y+9.6z−3
Step-by-step explanation:−(6y−9.6z+3)
−6y+9.6z−3
The corporate team-building event will cost $16 if it has 4 attendees. If there are
5 attendees, how much will the corporate team-building event cost? Solve using
unit rates.
Answer: $20
Step-by-step explanation:
We will assume that there is a per-person cost:
$16/4 attendees = $4/attendee
($4/attendee)*5 attendees = $20
Given: F(x)= 2x - 1; G(x)= 3x + 2; H(x)= x^2
Find F(x) + G(x) + H(x)
Answer:
4
Step-by-step explanation:
Answer: 6x^2+1
(very sorry if this is wrong lol)
Step-by-step explanation:
Substitute all the given numbers into the equation, by doing so this should give you 2x-1+3x+2+x^2.
Since we have a group of x’s add them together, which would make 6x^2, this leaves our -1 and +2 add these these two numbers together to make plus one and finally you will have 6x^2+1
helpppppppppppppppppppp
Answer:
2nd option
Step-by-step explanation:
given a quadratic in standard form
y = ax² + bx + c
• If a > 0 then minimum vertex
• If a < 0 then maximum vertex
Here a = - 1 < 0 then maximum
The maximum value is the value of the y- coordinate of the vertex
The x- coordinate of the vertex is
x = - [tex]\frac{b}{2a}[/tex]
Here a = - 1 and b = 3 , then
x = - [tex]\frac{3}{-2}[/tex] = [tex]\frac{3}{2}[/tex]
Substitute this value into the equation for corresponding y- value
y = - ([tex]\frac{3}{2}[/tex] )² + 3([tex]\frac{3}{2}[/tex] ) - 1 = - [tex]\frac{9}{4}[/tex] + [tex]\frac{9}{2}[/tex] - 1 = - [tex]\frac{9}{4}[/tex] + [tex]\frac{18}{4}[/tex] - [tex]\frac{4}{4}[/tex] = [tex]\frac{5}{4}[/tex]
Then maximum value of [tex]\frac{5}{4}[/tex]
What is the equation of the line in point slope form given a slope of -12 and a point of (-4,
-5)?
Answer:
The equation of a line in point-slope form is y-Y1=m(x-X1). ”m” is the slope and (X1,Y1) is a point.
So, the equation in point-slope form is y+5=12(x+4).
:)
May I have help this subject really is stressful
Answer:
hm?
Step-by-step explanation:
3b+(-5)=(2b)³(-3)2+6=?
Answer:
b=-1
Step-by-step explanation:
given.3b+(-5)=(2b)³(-3)2+6=?
3b-5=8b-6+6
3b-5=8b
-5=8b-3b
-5=5b
-5/5=5b/5
b=-1
-3-5=-8-6+6=?
-8=-8=-8
Solve pls brainliest
Explain
Answer:
A. -10
B. 147
Step-by-step explanation:
-90 ÷ 9 = -10
7 · 21 = 147
Hope this helps!
What's the answer ??
Answer:if one part is bigger than the other then its bigger
this should help
Answer:
(8 × 3) + (8×2)
Step-by-step explanation:
Help please I need to pass
Answer:
(x+8, y+4).
Step-by-step explanation:
8 units to the right followed by 4 units up.
help me pls help please???
Answer:
3 – x
Step-by-step explanation:
A number in this case we will as x. And 3 less than x is -
3 – x
x - 3
Hope i helped ya!
which pair of terms are not like terms?
A. 4a and 7a
B. 3p^2q and -p^2q
C. 2mn and mn^2
D. -x and 3x
Answer:
C.
Step-by-step explanation:
Like terms must have exactly the same variables and exactly the same exponents.
In C., you have mn and mn^2. That makes the variable parts not the same, so they are not like terms.
Answer: C.
write the repeating decimal as a fraction 0.75
the 75 is repeating
Let x = 0.757575... . Then
100x = 75.757575...
and so
100x - x = 75.757575... - 0.757575...
99x = 75
x = 75/99 = 25/33
Help someone asapppp
Answer:
30
Step-by-step explanation: