Answer:
41 years old
Step-by-step explanation:
n = age now
create proportion, then cross-multiply:
(n-12)/n = 2/3
2n = 3n-36
-n = -36
n = 36
in 5 years age will be 36+5 or 41
Wich of the following equations would NOT contain the point (4,12)
Given:
The given point is (4,12).
To find:
The equation that would NOT contain the point (4,12).
Solution:
We need to check each equation for the point (4,12).
In option A, the given equation is:
[tex]y=-2x+20[/tex]
Putting [tex]x=4[/tex], we get
[tex]y=-2(4)+20[/tex]
[tex]y=-8+20[/tex]
[tex]y=12[/tex]
This equation contains the point (4,12).
In option B, the given equation is:
[tex]y=\dfrac{1}{2}x+8[/tex]
Putting [tex]x=4[/tex], we get
[tex]y=\dfrac{1}{2}(4)+8[/tex]
[tex]y=2+8[/tex]
[tex]y=10[/tex]
This equation does not contain the point (4,12).
In option C, the given equation is:
[tex]y=-\dfrac{1}{2}x+14[/tex]
Putting [tex]x=4[/tex], we get
[tex]y=-\dfrac{1}{2}(4)+14[/tex]
[tex]y=-2+14[/tex]
[tex]y=12[/tex]
This equation contains the point (4,12).
In option D, the given equation is:
[tex]y=\dfrac{3}{4}x+9[/tex]
Putting [tex]x=4[/tex], we get
[tex]y=\dfrac{3}{4}(4)+9[/tex]
[tex]y=3+9[/tex]
[tex]y=12[/tex]
This equation contains the point (4,12).
Only the equation in option B does NOT contain the point (4,12). Therefore, the correct option is B.
Solve for b.
- 28 – 6b= 8
Answer:
-6
Step-by-step explanation:
- 28 – 6b= 8
step 1 add 28 to each side
-28 + 28 cancels out
28 + 8 = 36
we now have -6b = 36
step 2 divide each side by -6
-6b / -6 = b
36 / -6 = -6
we're left with b = -6
Hi there!
»»————- ★ ————-««
I believe your answer is:
[tex]b=-6[/tex]
»»————- ★ ————-««
Here’s why:
We will have to preform inverse operations to solve for 'b'.
[tex]\boxed{\text{Solving the equation for 'b':}}\\\\-28-6b=8\\\\--------\\\rightarrow-28+28-6b=8+28\\\\\rightarrow-6b=36\\\\\rightarrow\frac{-6b=36}{-6}\\\\\rightarrow \boxed{\text{b=-6}}\\\\\text{The value of 'b' is \boxed{-6}.}[/tex]
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
hello please help i’ll give brainliest
Erosion should be the right answer
Answer:
Volcanic Eruptions, Mountain Range Formations, Earthquakes
Step-by-step explanation:
What is the least common
multiple of 15a² and 3a2?
1.3a2
2.3a3
3.15a2
4.15a3
Answer:
1. 3a2
Step-by-step explanation:
Your friend has n pennies. You have 29 pennies. You and your friend have a total of 40 pennies. Which equation could be used to find n?
Answer:
40-29=n
Step-by-step explanation:
You have 29 in total yall have 40
so to find ur friends we subtract
Answer:
Step-by-step explanation:
your pennies + your friends pennies = the total number of pennies between you two
so the equation would be :
29 + n = 40
(im not sure if you wanted it solved for n but here is the solution just in case)
29 + n = 40
n = 40 - 29
n = 11
solving systems of equations elimination
ok so basically I need help with this. Which expression is equivalent to x(15y+77)?
Answer:
15xy+77x
hope this helps
have a good day :)
Step-by-step explanation:
Find the surface area of this rectangular prism.
a - 3 square units
b - 9 square units
c - 21 square units
d - 102 square units
Answer:
102 un²
Step-by-step explanation:
Area surface = 4( 3 x 7 ) + 2( 3 x 3 )
4( 21 )+ 2( 9 ) =
84 + 18 = 102 un²
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Someone help me with this pls
Answer:
y^6 or y^13/y^7
Step-by-step explanation:
-5×3+7×4-54÷9+2 ( step by step explanation pls do fast...)
Answer:
9
Step-by-step explanation:
-5×3+7×4-54÷9+2
-5×3+7×4-6+2
-15+28-6+2
-15-6+28+2
-21+30
9
As a fraction in simplest terms, what would you multiply the first number by to get
the second?
First number: 2
Second number: 3
Answer:
1/2
Step-by-step explanation:
if you have this equation, 2n=3, and wanted to solve for 'n' then you could multiply each side by 1/2
In the right triangle shown below, what is the sine of angle θ?
A.1.100
B.0.414
C.2.191
D.0.909
Step-by-step explanation:
In given rt.angled triangle,
Sin thita =p/h
=26.1/28.7
=0.9094
So correct answer is option D.
0.9094 is the sine of angle θ
What is trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
here, we have,
from the given figure,
In given rt.angled triangle,
Sin thita =p/h
=26.1/28.7
=0.9094
So correct answer is option D.
To learn more trigonometry click:
brainly.com/question/26719838
#SPJ2
Seth’s bank charges $5 a month to maintain a checking account and $0.50 for each check Seth writes. Last month, Seth paid a total of $6.50 in checking account fees. How many checks did he write?
A 1 C 3
B 2 D 4
Answer:
13
Step-by-step explanation:
Since Seth pays $0.50 for each check he writes, he would write (let x be how many checks Seth wrote) "x" checks for $6.50. That means;
1 = 0.50
x = 6.50
Now let us set up a fraction:
[tex]\frac{0.5}{1}=\frac{6.5}{x}[/tex]
Step 1: Cross multiply
[tex]0.5x=1\cdot \:6.5[/tex]
[tex]0.5x=6.5[/tex]
Step 2: Divide both sides by [tex]0.5[/tex]
[tex]\frac{0.5x}{0.5}=\frac{6.5}{0.5}[/tex]
Simplify
[tex]x=13[/tex]
Therefore, Seth will write 13 checks for $6.50
What is cos 30°? 60° 1 90° 30° V3 O A. v3 O B. 1 O c.
Answer:
E
Step-by-step explanation:
Cos=Adjacent/hypotenuse
Cos30=rad3/2
The cosine function for Ф = 30 is equivalent to :
cos(30) =√3/2.
What are trigonometric functions?There are six major trigonometric functions as -
Sine(x)Cosine(x)Tangent(x)Cotangent(x)Secant(x)Cosecant(x)We can write the relation between them as -
Sine = 1/cosecantCosine = 1/secantTangent = 1/CotangentAlso the following trigonometry relations hold true -
sin²Ф + cos²Ф = 1
1 + tan²Ф = sec²Ф
1 + cot²Ф = cosec²Ф
Given is a right angled triangle as shown in the image having 60 - 90 - 30 orientation and the measured sides as shown in the image.
We can write the cosine function as -
cosФ = Base/Hypotenuse
cos(30) = √3/2
So, we can conclude that the cosine function for Ф = 30 is equivalent to :
cos(30) =√3/2
Therefore, the cosine function for Ф = 30 is equivalent to :
cos(30) =√3/2.
To solve more questions on trigonometric functions, visit the link below-
https://brainly.com/question/30672622
#SPJ7
Write an equation in slope-intercept form of the line that has a slope of -9 and a y-intercept of -4
ANSWER ASAP PLEASE!!
y=-9x-4
Slope intercept form uses the formula, y=mx+b, where m is the slope and b is the y- intercept.
I hope this helps. Have a great day!
Answer:
Y=-9x-4
Step-by-step explanation:
The formula for slope-intercept form is y=mx+b. M is the slope and b is the y-intercept. All you need to do is plug in the numbers. I hope I helped. :>
8 to the power of 3
pls answer
Answer:
512
Step-by-step explanation:
8x8x8=512
pretty simple
Answer:
512
Step-by-step explanation:
8*8*8=512
Hey!! Can any of y'all help me find the center and radius of this equation?
x^2+y^2-8x+2y=-8
Answer:
Center: (4,-2)
Radius: 2√3 units
Step-by-step explanation:
We wish to find the center and radius of the equation x²+y²-8x+2y=-8
Step 1: Complete the square for both variables:
x²+y²-8x+2y=-8
x²-8x+y²+2y=-8 (Rearrange)
x²-8x+16+y²+2y+4=-8+16+4 (Add to both sides)
(x-4)²+(y+2)²=12 (Reduce trinomials)
Step 2: Interpret the center and radius of the circle:
The equation of a circle is (x-h)²+(y-k)²=r² where (h,k) is the center of the circle and r is the radius of the circle. Since (h,k) translates to (4,-2), this means the center of the circle is (4,-2). Since r²=12, then r=√12=2√3 units
Brainliest. Brainliest WHO WANTS A BRAINLIEST
Answer:
B
Step-by-step explanation:
Answer:
1. x > -25
2. x > -16
3. x > -2
4. x [tex]\geq[/tex] 10
Give brainliest
Please help me with this homework
Answer:
9.81 x 100,000
Step-by-step explanation:
Answer:
9.81*10^5
Step-by-step explanation:
Move the decimal point to the right of the first digit of the number. It should be a decimal number between 1 and 10. Write that down.
Then count the number of places you need to move the decimal point from that place to the right, and that's how many times 10 needs to be squared.
Graph the inequality on the axes below. Plz help this is due tonight! I’ll give you brainliest!
Answer:
If written in Standard form this equation would be:
[tex]y \geq \frac{x}{3} + (-\frac{18}{3} )[/tex]
Now i graphed this equation in Desmos and here is what i got:
Hope this helps!
hope it help if not let me k ow and I'll find a way to explain it :>
Please help! I will give Brainliest!
Answer:
A. 44/625
Step-by-step explanation:
There are 25 marbles total. To first calculate the probability of picking a yellow marble first can be represented as 11/25, the probability of picking blue is 4/25. We multiply these to figure out the probability of finding a yellow marble and then a blue one.
11/25 x 4/25 = 44/625
Please answer this math question for me
Answer:
Hello! answer: e = 108 d = 32 f = 40 because
108 + 108 + 32 + 32 + 40 + 40 = 360 Hope this helps!
How many 2-digit numbers are multiples of 5 but not 4?
Answer:
14
Step-by-step explanation:
The numbers you are describing can end in 5. But there are others as well. They are t = 10 + 20*n where n goes from 0 to 4. So if n is 4 that means that t = 4*20 + 10 = 80 + 10 = 90.
Solution
15 25 35 45 55 65 75 85 95 are all divisible by 5 but not 4
10 30 50 70 90 are all divisible by 5 but not 4
10. How do you find the product of the following? Show all your work. a. Binomial squared: (2x + 3)2 b. Binomial squared: (2x - 3)2 C. Difference of squares: (x + 5)(x - 5)
Answer:
A
Step-by-step explanation:
A because when you find the product you need to add
Help please I might fail…
Answer:
9 /4 which equals 2 and 1/4
Step-by-step explanation:
plugged into the calculator!
Dan spent $765.00 on equipment to open a business selling bumitos. He sells the burritos for $3.50 each. The cost of the ingredients to make each burito is $0.75
Answer: 3:50b>765.00+0.75 279 Burritos
Step-by-step explanation:
Mahmoud is working out the height, h metres, of a tower
BT which stands on level ground.
He measures the angle TAB as 25°.
He cannot measure the distance AB and so he walks 80 m
from A to C, where angle ACB = 18° and angle ABC = 90°.
Calculate
Answer:
24.72 m
11.53 m
Step-by-step explanation:
Horizontal distance AB can be obtained from △ABC
From trigonometry :
Sin18° = opposite / hypotenus
Sin18° = AB / 80
AB = 0.3090169 * 80
AB = 24.72 m
The height BT, of tower from △ABT
From trigonometry :
Tan25° = opposite / Adjacent
Tan25° = h / 24.72m
h = Tan25 * 24.72
h = 11.527
h = 11.53 m
Hence, height of tower BT = 11.53 m
Can someone help me my grads are bad
Answer:
A
Step-by-step explanation:
Name each polygon. Then tell whether it is a regular polygon or not a regular polygon.
Answer:
1. quadrilateral; not regular
2. quadrilateral; regular
3. octagon; not regular
4. hexagon; regular
5. triangle; regular
6. pentagon; not regular
1. The graph of f(x) = |x| is shown below. Write the equation for the stretched graph, g(x).
Step 1: Start with the equation g(x) = k • f(x). Substitute the known point and solve for k.
Show your work. (2 points)
Answer:
Step-by-step explanation:
If the input is 2 and the output is 6, then f(x) = 3IxI