Answer: her present age is 4
Step-by-step explanation:
Proof: 4+12=16
Square root 4 is 16
Answer:
4
Step-by-step explanation:
Let x represent her present age. The given relation is ...
x +12 = x^2
Putting this in standard form, we can factor it:
x^2 -x -12 = 0
(x -4)(x +3) = 0
Solutions to this quadratic are x = 4, x = -3. The -3 solution is extraneous in this context.
The girl's present age is 4.
Determine the slope and y -intercept for each line shown. Then write the equation of the line (will give Brainliest)
Answer:
1.
[tex]y=\frac{1}{4}x+2[/tex]
m= [tex]\frac{1}{4}[/tex]
b= 2
2.
[tex]y=-\frac{1}{3}x+1[/tex]
m= [tex]-\frac{1}{3}[/tex]
b= 1
3.
[tex]y=3x+4[/tex]
m= 3
b=4
Step-by-step explanation:
1. The line intersects the y-axis at the point (0,2) therefore its y-intercept is b=2.
The line rises up 1 unit on the y-axis for every 4 units on the x-axis therefore the line has a slope of m=1/4.
Considering the equation of a line (y=mx+b), we plug in the variables we have found into the formula to find that [tex]y=\frac{1}{4}x+2[/tex]
2. The line intersects the y-axis at the point (0,1) therefore its y-intercept is b=1.
The line down up 1 unit on the y-axis for every 3 units on the x-axis therefore the line has a slope of m= -1/3.
Considering the equation of a line (y=mx+b), we plug in the variables we have found into the formula to find that [tex]y=-\frac{1}{3}x+1[/tex]
3. The line intersects the y-axis at the point (0,4) therefore its y-intercept is b=4.
The line rises up 3 units on the y-axis for every 1 unit on the x-axis therefore the line has a slope of m=3.
Considering the equation of a line (y=mx+b), we plug in the variables we have found into the formula to find that [tex]y=3x+4[/tex]
How do i even solve this?
Answer:
Step-by-step explanation:
# 34.
A ≈ 14² - 3.14 × 7² = 42.14 cm²
# 35.
A ≈ [tex]\frac{20^2 - 3.14 * 10^2}{2}[/tex] = 43
# 36.
A = 14² - 4 × 5² = 196 - 100 = 96 m²
7a - 8 - 12a + 4 (please give steps)
Answer:
The answer will be -5a-4
Step-by-step explanation:
Subtract 7a-12a=-5a
Add -8+4=-4
which makes the answer -5a-4
Hope this helps:)
Answer:
a = -4/5
Step-by-step explanation:
7a - 8 - 12a + 4
First, you want to put like terms together. You can rearrange the terms because of the Commutative Property.
7a - 12a - 8 + 4
I will put parentheses around the negative numbers, so it is easier to see the negative numbers.
7a (- 12a)( - 8) + 4
Now you combine the Like Terms
7a-12a and -8+4
- 5a - 4
Now you need to get the term with a all by itself on the other side of the equals sign. You can do this by adding the term over to the other side.
-5a - 4
+5a +5a
Now you have
- 4 = 5a
To get the final answer you need to get a all by itself. You can do this by dividing 5 on both sides.
-4/5=5a/5
So you get
-4/5 = a
as your final answer.
Cucheze
mredit
TASK #9
At McDonald's four cheeseburgers
and three medium fries have a
total of 2290 calories. Six
Cheeseburgers and twomedium
fries have 2560 calories.
How many calories doeseach item
contain?
Explain how to tell which side of a right triangle is adjacent to an angle and which side is the hypotenuse.
Step-by-step explanation:
In the diagram, AB is adjacent to Angle"a", because if we don't consider hypotenuse, it is the only associated segment to the angle.
The segment opposite to the right angle is called Hypotenuse.
The last one, AC segment, is called the Opposite because it is the opposite to Angle"a".
If we look at it from AngleC, however, its Adjcent will be segment AC, and Opposite will be segment AB.
Solve the inequality
5-4x<17
Show steps please
Answer: [tex]x>-3[/tex]
Step-by-step explanation:
[tex]5-4x<17[/tex]
[tex]5-4x-5<17-5[/tex]
[tex]-4x<12[/tex]
Multiply both sides by -1 and reverse the inequality:
[tex]\left(-4x\right)\left(-1\right)>12\left(-1\right)[/tex]
[tex]4x>-12[/tex]
[tex]x>-3[/tex]
I have $56.00 more than my cousin, who has $84.00 more than my brother. If I have $120.00, how much money does my cousin have?
Canute is 8 years older than his sister Rose who is twice the age of Dan. Dan is 5 years old. How old is Canute?
1. A factory employee is required to pack 180 boxes of goods each day for a 5-day work week. Two days he missed the quota by 12 and 19 respectively. How many boxes did he pack for that week?
who ever answer will be marked brainliest
Answer:
Cousin has $64, Canute is 18
Step-by-step explanation:
1. x + 56 = 120
b + 84 = x
Cousin (x) is 64
2. 8 + r = c
2d = r
d = 5
Canute (c) is 18
3. 180 = 5 days
Missed by 12 and 19
180 - 12 - 19 = 149
Question 2(Multiple Choice Worth 3 points)
(10.06 LC)
Which model can be used to show the sum of one and one fifth plus two and one fifth?
A. A number line from zero to four partitioned into fifths. There is one hop of one and two hops of one fifth from one and two fifths to two and four fifths.
B. A number line from zero to one partitioned into fifths. There is a gray rectangle above the number line stretching from zero to one and two fifths. To the right is a lighter gray rectangle above the number line stretching from one and two fifths to three and three fifths.
C. A number line from zero to one partitioned into fifths. There is a gray rectangle above the number line stretching from zero to one and two fifths. To the right is a lighter gray rectangle above the number line stretching from one and two fifths to three and three fifths.
D. A number line from zero to four partitioned into fifths. There are two hops of one and one hop of one fifth from one and one fifth to three and two fifths.
Answer:
noseeeeeeeeee3eeeeeeeeeeeeeeee
Step-by-step explanation:
[tex]15y65y) - 5y9 \div y {3y {.5}^{?} }^{?} [/tex]
es la c
Answer: It’s D. I think?
Step-by-step explanation: I hope this helps!
is this a proportion show work 8/24 = 2/63
∑ Hey, irisraya1 ⊃
Answer:
No.
Step-by-step explanation:
Given:
[tex]\frac{8}{24}=\frac{2}{63}[/tex]
Solution:
We can cross multiply to see if this proportion works.
[tex]63\times8=504[/tex]
[tex]24\times2=48[/tex]
[tex]48\neq 504[/tex]
As we can see, 48 and 504 does not equal.
Hence, this proportion doesn't work.
xcookiex12
8/22/2022
I really need help. Only do number 8. please someone.
Answer:
I think Problem Number 8 equals 1 the Y axis is the only one with the Ysd that has 1 in it
Step-by-step explanation:
1.2x
2.2
3.x
Tell me if its wrong I can fix it fast <3
have a good day<3
which of the following has a graph that is a straight line (70 POINTS HURRY PLSSS)
Answer:
A answer 1
Step-by-step explanation:
that's my best guess and I'm 99.9% sure it's right. sorry if I'm wrong I wish you luck):
Answer:
A) Equation 1Step-by-step explanation:
A) Equation 1 is representing the straight lineB) Equation 2 - square root functionC) Equation 3 - quadratic functionD) Equation 4 - cubic functionCorrect choice is A
A frequency distribution plotted on a curve can be both symmetrical or skewed. A curve skewed to the right is also referred to as ____.
What is the area of this triangle
480
525
675
960
Answer:
it 480
Step-by-step explanation:
if your k 12 this is right
Answer:
The Answer is A. 480, I picked 525 and got it wrong because I was doubting that it wasnt 480 but it was. well good luck
if s square has an area 25cm2 what is the length of a Side of the square
Answer:
5 cm
Step-by-step explanation:
Square has the formula = S × S
S × S = S²
S = Side
:- SolutionSquare has an area 25 cm²
Length of a side of the square :
25 cm² = S²
S² = 25
S = √25
S = 5 cm
________________________
4x + 2y = -12 3x + y = -10 please help system by substitution.
Answer:
(-4, 2)
Step-by-step explanation:
4x+2y=-12
3x+y=-10
Start by dividing the first equation by 2 to simplify it...
2x+y=-6
Then, subtract -2x from both sides to isolate y...
y=-2x-6
Substitute -2x-6 for y in the second equation...
3x-2x-6=-10
Combine like terms...
x-6=-10
Add 6 to both sides
x-6+6=-10+6
x=-4
Plug -4 in for x to solve for y:
3(-4)+y=-10
-12+y=-10
Add 12 to both sides
-12+12+y=-10+12
y=2
(x,y)=(-4,2)
help i need sb good in math!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
104 m²
Step-by-step explanation:
Area of the quadrilateral
= width × length
= 10 m × 8 m
= 80 m²
Area of the triangle
= ½ × base × height
= ½ × 8 m × 6 m
= 24 m²
Total area of the shape
= Area of the quadrilateral + Area of the triangle
= 80 m² + 24 m²
= 104 m²
pls this is very urgent !!!
can someone pls explain this, thank u sm!
Answer:
The answer is 1204
Step-by-step explanation:
explanation in the pictures
What times what gives you 15 but when added gives you 8?
Answer: 5 x 3 = 15 because 5 + 3 = 8
Step-by-step explanation:
Answer:
5 and 3
Step-by-step explanation:
5 x 3 = 15
but,
5 + 3 = 8 :)
The area of the unshaded region is 22.5cm. What is the area of the rectangle? A11.25cm . B22.5cm . C45cm . D90cm .
Answer:
45cm2
Step-by-step explanation:
because the shaded areas = to the non shaded one so just multiply it by 2 to get 45cm2
(Hope this helped you out)
Find the equation of the line that has a slope of 3 and passes through the point (2,7). Write the equation in point-slope form.
please help I'll mark brainliest
Answer:
[tex]\triangle BAD [/tex]
Step-by-step explanation:
[tex]\triangle BAC [/tex] is congruent to [tex]\triangle BAD [/tex]
please help im on a timer
What is the volume of a hemisphere with a diameter of 8.9 cm,
Answer:
The volume of the hemisphere is 1,475.73cm^3.
Step-by-step explanation:
Refer to:
https://brainly.com/question/23826439
184.6cm³ up you are rounding to the nearest tenth 184.56cm³ if you are rounding to the nearest hundredth
It's a hemisphere instead of a sphere so the formula is 2/3×π×r³ which gives us the equation of 2/3×π×4.45³ snd the reason we use 4.45 is because the diameter is 8.9 so we have to divide that by 2 to get the radius which is 4.45
In ΔJKL, l = 880 inches, ∠J=63° and ∠K=11°. Find the length of j, to the nearest inch.
Answer:
J = 816
I hope this helps you and good luck
Quadrilateral A'B'C'D prime is the result of dilating quadrilateral ABCD about point P by a scale factor of 5/3
Answer:
1. False
2. False
Step-by-step explanation:
The statement "BC and B'C' are on the same line" is false, and the statement "the lengths of CD and C'D' are equal" is false.
What is a transformation?A point is transformed when it is moved from where it was originally to a new location. Translation, rotation, reflection, and dilation are examples of different transformations.
Quadrilateral A'B'C'D prime is the result of dilating quadrilateral ABCD about point P by a scale factor of 5/3
To determine whether each claim about the properties of ABCD and A'B'C'D' is true or false.
The points in the image by multiplying the coordinates of the points in the preimage by the scale factor.
Thus, the statement "BC and B'C' are on the same line" is false and the statement "the lengths of CD and C'D' are equal" is false.
To learn more about the transformations click here :
https://brainly.com/question/28029674
#SPJ2
How much warmer is 82 then -40
Answer:
122
Step-by-step explanation:
We are finding the difference, so our equation will be
[tex]82 - (-40)[/tex]
Subtracting by a negative is basically the same as adding. (- & - = +)
[tex]82 - (-40) =82 + 40[/tex]
Now add 82 + 40
[tex]82[/tex]
+ [tex]40[/tex]__
122
Hope this helps! If you have notes try writing out the steps for how to solve. :))
A parabola opens to the left. Which could be the equation of the parabola? (x – 4)2 = 4(y 3) (x – 4)2 = –4(y 3) (y – 4)2 = 4(x 3) (y – 4)2 = –4(x 3).
The equation of a leftward parabola is [tex]\rm (y - 4)^2 = -4(x+ 3)[/tex]. Then the correct option is D.
What is the parabola?It is the locus of a point that moves so that it is always the same distance from a non-movable point and a given line. The non-movable point is called the focus, and the non-movable line is called the directrix.
The parabola is open to the left.
We know that the equation of the parabola will be in square form.
a. [tex]\rm (x - 4)^2 = 4(y +3)[/tex]
This is an equation of an upward parabola.
b. [tex]\rm (x - 4)^2 = -4(y+ 3)[/tex]
This is an equation of a downward parabola.
c. [tex]\rm (y - 4)^2 = 4(x+ 3)[/tex]
This is an equation of a rightward parabola.
d. [tex]\rm (y - 4)^2 = -4(x+ 3)[/tex]
This is an equation of a leftward parabola.
Thus, the correct option is D.
More about the parabola link is given below.
https://brainly.com/question/8495268
A cylinder-shaped water tank has a diameter of 10 m and a height of 10 m.
What volume of water does the tank contain when it is 75% full?
Use 3.14 to approximate pi.
Enter your answer as a decimal to the hundredths place in the box.
?=m³
Answer:
588.75m³
Step-by-step explanation:
I found out the area of the circle on the bottom and it was 78. 5 which I then times by the height to make 785. 75% of 785 is 588.75
3 Two mobile phone companies have different tariffs for text messages:
Phone company X charges $20 per month for unlimited texts. .
Phone company Y charges $5 per month and $0.05 per text. .
a) For each company, write a formula that gives the total monthly charge
($C) for someone who sends n texts.
b) Draw a graph of C against n for both companies on the same axes,
showing the monthly charges for up to 500 texts.
c) From your graph estimate the number of texts at which both companies
would have the same monthly charge.
Answer:
B is the perfect answer for your question
a) company x formula---> C = 20
company y formula ----> C = 0.05n + 5
b) graph attached
c) 20 = 0.05 n + 5
15 = 0.05n
n = 300 messages and they will have the same monthly charges
A rectangles perimeter is 124 ft. its length is 2 ft shorter than THREE TIMES its width. use an equation to find the rectangles length and width
Its width is___
its length is____
Answer:
Length will be 46 ft and width will be 16 ft
Explanation:
Let the width be x.
then the length will be 3x - 2
using the rectangle perimeter formula:
2( length + width )
2(x + 3x-2) = 124
2(4x-2) = 124
8x - 4 = 124
8x = 128
x = 16 ft
Width will be 16 ft and
Length: 3x - 2
: 3(16)-2
: 46 ft
ATQ
[tex]\\ \tt\hookrightarrow 2(n+3n-2)=124[/tex]
[tex]\\ \tt\hookrightarrow 2(4n-2)=124[/tex]
[tex]\\ \tt\hookrightarrow 4n-2=62[/tex]
[tex]\\ \tt\hookrightarrow 4n=64[/tex]
[tex]\\ \tt\hookrightarrow n=16[/tex]
Width=16Length=46 .