Answer: f(3) = 14
Concept:
Here, we need to understand the idea of evaluation.
When encountering questions that gave you an expression with variables, then stated: "If x = a, y = b, z = c" (a, b, c are all constants), this means you should substitute the value given for each variable back to the expression.
Solve:
Given function
f(x) = 4x + 2
Substitute value of the x into the expression
f(3) = 4(3) + 2
Simplify by multiplication
f(3) = 12 + 2
Simplify by addition
f(3) = [tex]\boxed{14}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
The sum of the areas of two squares is 818 cm2.
The sum of the perimeters is 160cm.
Find the lengths of the sides of the squares.
Answer: 17 and 23 (cm)
Step-by-step explanation:
Let c1 and c2 the side of thr squares.
[tex]\left\{\begin{array}{ccc}4*c_1+4*c_2&=&160\\c_1^2+c_2^2&=&818\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}c_1+c_2&=&40\\c_1^2+(40-c_1)^2&=&818\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}c_1+c_2&=&40\\c_1^2+-40c_1+391&=&0\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}c_1&=&23\\c_2&=&17\\\end{array}\right.\ or\ \left\{\begin{array}{ccc}c_1&=&17\\c_2&=&23\\\end{array}\right.\\[/tex]
Simplify.
18 2+6(4+1) -2
Answer:
[tex]1)18 \times 2 + 6(4 + 1) - 2 \\ = 36 + 6 \times 5 - 2 \\ = 36 + 30 - 2 \\ 36 + 28 \\ = 64 \\ \\ thank \: you[/tex]
Answer:
18×2+6(4+1)-2
= 36+6×5-2
= 36+30-2
= 66-2
=64
write an inequality that represents the graph
Answer:
x is less than or equal to 4. Not sure how you would type that out on the slide though. :\
Step-by-step explanation:
please answer this question
Answer:
The answer is 0.15372
Step-by-step explanation:
The total surface area of a hemisphere is 300cm2. What is the surface area of the sphere having equal radius to the hemisphere.
Answer:
400cm²
Step-by-step explanation:
the surface area of the sphere =
4/3 x The total surface area of a hemisphere
=> 4/3 x 300 = 400cm²
Help HELP HELP HELP HELP
Answer:
the g.c.f is 44,46,
i not sure but hope it help
What is the value of the expression when n = 3?
6 (n² + 2)
n
16
22
30
66
Answer: Fourth Choice. 66
Concept:
Here, we need to understand the idea of evaluation.
When encountering questions that gave you an expression with variables, then stated: "If x = a, y = b, z = c" (a, b, c are all constants), this means you should substitute the value given for each variable back to the expression.
Solve:
Given information
n = 3
Given expression
6 (n² + 2)
Substitute values into the expression
=6 (3² + 2)
Simplify exponents
=6 (9 + 2)
Simplify values in the parentheses
=6 (11)
Simplify by multiplication
=[tex]\boxed{66}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
Answer:
Step-by-step explanation:
[tex]\displaystyle \Large \boldsymbol{} 6(n^2+2) = 6(3^2+2)=66[/tex]
help plss!! Directions: Translate into mathematical expressions. Example: The sum of three times a number and 10- (3n + 10)
pleasee do all of these problems now!! and i will mark u branliest if u get at least 4 of em right:)
1. Twelve less than z
2. Twice take the sum of x and y
3. Six less than four times a number
4. Twice the sum of v and 5
6. The average of test scores x and y
7. The cost of m kilograms of meat at $3.95 a kilogram
Shelly charges$10 per hour for her babysitting services. Last month Shelly babysat for 15 hours. This month she babysat for n hours.
a. Write an expression using parentheses to describe how much money she made.
b. Given that n= 12, evualte your expression using distributive property.
Answer:
10n+(10 x 15)
or
(10 x n)+150
either way it would be 270
7n + 12 = 3n+ 8n
That’s the problem
Answer:
n = 3
Step-by-step explanation:
to find the value of n
we need to transpose
7n + 12 = 3n+ 8n
7n + 12 = 11n
12 = 11n -7n
12 = 4n
n = 12/4
n = 3
if ur trying to find the value of n then n=3
i need help with the top part
Answer:
1. (1, 2)
2. (-5, 7)
3. (-6, -5)
4. (0, -3)
Step-by-step explanation:
(1 - 4) Explanation:
If we're asked to move to the right, make the x-coordinate a positive number.
If we're asked to move to the left, make the x-coordinate a negative number.
If we're asked to move upwards, make the y-coordinate a positive number.
If we're asked to move downwards, make the y-coordinate a negative number.
Translate the sentence into an inequality. A number b increased by 5 is at most – 24.
Answer:
b+5≤-24. Hope this helps:)
Step-by-step explanation:
Write a proof. Given x = 2 = 3 (x - 4) Prove x = 5
Step-by-step explanation:
The equation in the question is false.
[tex]x - 2 = 3(x - 4)[/tex]
[tex]x - 2 = 3x - 12[/tex]
[tex]3x - x = 12 - 2[/tex]
[tex]2x = 10[/tex]
[tex]x = 10 \div 2[/tex]
[tex]x = 5[/tex]
Decide whether the represents a rational number or an irrational number. Explain how you know without simplifying.
The
represents
▼
an irrational number.
a rational number.
This is because the number
is
▼
a rational number
an irrational number
and the number
is
▼
an irrational number.
a rational number.
The of
▼
a rational number and an irrational number
two irrational numbers
two rational numbers
is
▼
an irrational number.
a rational number.
Please help me with this problem
[tex] \sqrt{11} \: lies \: between \: 3 \: and \: 4[/tex]
Answer:
Lies between 3&4
See THE IMAGE FOR SOLUTION
please help I don't know how to do this
Formula: 4s
S = 7
Answer:
28
Step-by-step explanation:
Given formula:
4s
It is given that the variable, s, is equal to 7. Therefore, plug in 7 for s in the expression:
4s
4(7)
Next, multiply straight across:
4 * 7 = 28
28 is your answer.
~
Answer:
answer is 28
Step-by-step explanation:
it is simple put the value of S in formula and then solve
13)
According to Wikipedia, the common swift has a maximum horizontal speed of 111.6 km/h
Convert this speed to meters per second.
Speed in km/h=111.6km/h
[tex]\boxed{\sf 1km/h=\dfrac{5}{18}m/s}[/tex]
[tex]\\ \rm{:}\twoheadrightarrow 111.6km/h[/tex]
[tex]\\ \rm{:}\twoheadrightarrow 111.6\times \dfrac{5}{18}[/tex]
[tex]\\ \rm{:}\twoheadrightarrow \dfrac{558}{18}[/tex]
[tex]\\ \rm{:}\twoheadrightarrow 31m/s[/tex]
Answer:
31 m/sStep-by-step explanation:
We know that:
1 km = 1000 m1 h = 3600 sConvert:
111.6 km/h = 111.6 * 1000/3600 m/s =31 m/snumber of set values of (p,q), which satisfy relation p^2 = 2q^2 ( where p and q are natural numbers )
options:
(A) 1
(B) 0
(C) 2
(D) 3
(B) 0
We have
[tex]p^2 = 2q^2 \implies \dfrac{p^2}{q^2} = \left(\dfrac pq\right)^2 = 2[/tex]
but 2 is not a square number.
Class 10 cbse
Q) Four years ago George was four times older than his daughter. After four years, George will be 2 years more than two times the age of his daughter. Find the present age of George and his daughter.
Please answer asap
Answer:
George Washington 67 and sister 63
Answer: 28
Step-by-step explanation:
Let the present age of George be = x years
and present age of her daughter is = y years
4 years ago,
George age be = x - 4
Daughter age be = y - 4
After four years,
George age be = x +4
Daughter age be = y+ 4
Substitute the value of x in equation 2
➡
Value of y put in equation 1
➡x= 28
So, the present age of George is 28 years and his daughter's age is 4 years.
factor. x^2 - 11x + 30 delta math
Answer:
(x-5)(x-6)
Step-by-step explanation:
-6-5=-11
-6 times -5=30
so...
(x-5)(x-6) and -5 and -6 are the factors.
helpppppppppppppppppppppppppppppppppppppppppp
Answer:
1) C. 8x + 2x = 10x2) z = 53) y = 104) x = 1/25) x = 176) C. 1/4x + 4 = 3Step-by-step explanation:1. C. 8x + 2x = 10x2. 3z - 2 = 133z = 13 + 23z = 15z = 53. -5y - 10 = -60-5y = -60 + 10-5y = -50y = 104. 4x - 5 + 2x = -24x + 2x = -2 + 56x = 3x = 1/25. x - 8/3 = 3x - 8 = 9x = 9 + 8x = 176. C. 1/4x + 4 = 3(1/4 × -4/1) + 4 = 3-1 + 4 = 3[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]
If 8.51÷2.3=3.7, find the value of 85.1÷ 2.3
Answer:
37
Step-by-step explanation:
85.1÷ 2.3
=> 85.1/2.3 [Removing the decimals]
=> 851/23
=> 37
When x apples are shared amongst y children,none are left over.Write down the number of apples each child receives
Answer:
[tex]\frac{x}{y}[/tex]
Step-by-step explanation:
Each child receives
number of apples divided by number of children, that is
each child receives [tex]\frac{x}{y}[/tex] apples
evaluate each expression and round your answers to the nearest thousandth do not round any intermediate computations
Step-by-step explanation:
1. 1.45^(-0.7) = 0.771
2. (4/3)^(2.7) = 2.174
1:-
[tex]\\ \sf\longmapsto 1.45^{-0.7}[/tex]
[tex]\\ \sf\longmapsto 1.45^{-\frac{7}{10}}[/tex]
[tex]\\ \sf\longmapsto 0.771[/tex]
2:-
[tex]\\ \sf\longmapsto \left(\dfrac{4}{3}\right)^{2.7}[/tex]
[tex]\\ \sf\longmapsto \left(\dfrac{4}{3}\right)^{\frac{27}{10}}[/tex]
[tex]\\ \sf\longmapsto 2.174[/tex]
Im pretty desprate! HELP ASAP!!!
Step-by-step explanation:
The Rivera family bought a new tent for camping. Their old tent had equal sides of 10 feet and a floor width of 15 feet, as shown in the accompanying diagram. If the new tent is similar in shape to the old tent and has equal sides of 16 feet, how wide is the floor of the new tent?
Answer:
25.6 feet
Brainliest, please!
Step-by-step explanation:
10/16 = 16/x
5/8 = 16/x
5 = 128/x
x = 128/5
x = 25.6
The floor of the new tent is 24 feet wide.
What is ratio?Ratio basically compares quantities, that means it shows the value of one quantity with respect to the other quantity.
If a and b are two values, their ratio will be a:b.
Given that,
Side of old tent = 10 feet,
And width of floor = 15 feet.
Let width of new tent is x feet.
To find the width of a tent whose side is 16 feet,
Use ratio and proportion property,
10/15 = 16/x
x = (16 × 15)/10
x = 240/10
x = 24 feet
The width of the floor of the new tent is 24 feet.
To learn more about Ratio on :
https://brainly.com/question/13419413
#SPJ2
please help!!!!!!!!!! 25 points
Answer: 3.3 × 10⁹
Concept:
When multiplying exponents, add the exponents together.
When dividing exponents, subtract the exponents.
Solve:
Given expression
(3 × 10⁴) × (1.1 × 10⁵)
Put like terms together
=3 × 1.1 × 10⁴ × 10⁵
Combine like terms
=3.3 × 10⁴⁺⁵
=[tex]\boxed{3.3*10^9}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
Answer:
3.3×10^9
Step-by-step explanation:
Simplify: 61 –60 ÷ 2 [57 –3{12 ÷ 6 + 4 (8 –15 ÷ 3)}]
Answer:
I guess answer is 86. ...........
Solve for y. Simplify your answer as much as possible.
4=64/y
Answer:
y=16
Step-by-step explanation:
Multiply all terms by the same value to eliminate fraction denominators
Cancel multiplied terms that are in the denominator
Re-order terms so that constants are on the left
Divide both sides of the equation by the same term
Simplify
Cancel terms that are in both the numerator and denominator
Divide the numbers
Answer:
y is 16
Step-by-step explanation:
[tex]4 = \frac{64}{y} [/tex]
but 64 is 4³:
[tex]4 = \frac{ {4}^{3} }{y} [/tex]
make y the subject:
[tex]y = \frac{ {4}^{3} }{4} [/tex]
from law of indices:
[tex]y = 4 {}^{(3 - 1)} \\ y = {4}^{2} \\ y = 16[/tex]
If measure of angle B is two more than three times the measure of Angle C, and Measure B and c are
complementary angles, find each angle measure