f(-2) = 2(-2)+3
f(-2) = -4+3
f(-2) = -1
g(4) = (4) - 7
g(4) = -3
f(-2) + g(4) is -1 + (-3) which is -4
Joan performed an experiment on two different types of cells and noted their sizes as follows:
Cells Size
Cell A 0.0005×10−5 m
Cell B 0.0025×10−7 m
What is the ratio of the size of cell A to the size of cell B?
Answer: Press this link to get your answer -)
Step-by-step explanation:
The ratio is simply the fractional representation of two values in their simplest form. The ratio of Cell A to Cell B is 20 which means that the size of Cell A is 20 times the size of Cell B.
Given that :
Cell size A = [tex]Cell A = 0.0005\times 10^{-5}\\\\Cell B = 0.0025\times10^{-7} \\\\Ratio = \frac{Cell A }{Cell B} \\\\Ratio = \frac{0.0005 \times 10^-5}{0.0025 \times 10^-7}[/tex]
[tex]Ratio = 20[/tex]
Therefore, the ratio of the size of Cell A to the size of Cell B is 20 : 1, which can be interpreted to mean that cell A is 20 times larger than cell B.
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Simplify: -8w^8 - 4w^8
Enter the original expression if it cannot be
simplified.
Answer:
-12w^8
Step-by-step explanation:
Hope it helps!
You can get 672 calories from eating 8 apples. How many calories can you get from eating 1 apple?
Step-by-step explanation:
672 divides by 8
=8.375
Please help me and example pleaseee!!!! due TODAY!
Answer:
i think x=4
Step-by-step explanation:
I'm too late aren't I... :c
NEED HELP!!
Drag the tiles to the boxes to form correct pairs. Multiply the pairs of numbers and match them to their products. (-7)(-1.2) 5 (-2)—2) -5 (2.5)(-2) 8.4 (7)(-1.2) -8.4
The correct matches are;
1) (-7) (-1.2) = 8.4
2) 5 = (-2 1/2) (-2)
3) -5 = (2.5) (-2)
4) (7) (-1.2) = - 8.4
What is Multiplication?
To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
The expressions are,
a) (-7) (-1.2)
b) 5
c) (-2 1/2) (-2)
d) -5
e) (2.5) (-2)
f) 8.4
g) (7) (-1.2)
h) -8.4
Now, Solve the expressions in simplest form;
a) (-7) (-1.2) = 8.4
b) 5 = 5
c) (-2 1/2) (-2) = -5/2 x - 2 = 5
d) -5 = -5
e) (2.5) (-2) = -5
f) 8.4 = 8.4
g) (7) (-1.2) = - 8.4
h) -8.4 = -8.4
Thus, The correct matches are;
1) (-7) (-1.2) = 8.4
2) 5 = (-2 1/2) (-2)
3) -5 = (2.5) (-2)
4) (7) (-1.2) = - 8.4
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What is...
5(11+6)
and
7(3-19)
Answer:
#1. 85
#2. -112
Step-by-step explanation:
#1.
multiply 5 by whats inside the parenthesis
55 + 30
85
#2.
multiply 7 by whats inside the parenthesis
21 - 133
-112
Hope this helps!
Have a nice day!
If you find my answer helpful
Pls consider marking my answer as Brainliest! It would mean a lot!
Answer:
5(11+6)= 85
7(3-19= -112
Step-by-step explanation:
5(11+6)
55+30=85
7(3-19)
21-133= -112
Am i right? And why?
Answer:
Yes I think your right but I can't back up my response. I mean it looks right to me.
Step-by-step explanation:
Srry. HOPE THIS HELPS!! :)
What would your first step look like if you were solving this system using the substitution method? y=x−10 and y=−6x+18?
Answer:
Substitution method can be applied in four steps.
Solve one of the equations for either x = or y = .
Substitute the solution from step 1 into the other equation.
Solve this new equation.
Solve for the second variable. ...
Step 1: Solve one of the equations for either x = or y = .
Step-by-step explanation:
Jessica wants to order some sunglasses from Amazon. Each pair of sunglasses cost $9.00 and shipping for the entire order is $10. How many pairs of sunglasses can she get if she spend no more than $100
Answer:
10
Step-by-step explanation:
9x10=90 then add the shipping and get 100
jon is baking cookies . the recipe calls for 1 1/2 cups of flour , and Jon wants to triple the recipe . Write and solve two equations that show how to figure out how much flour he needs .
1 1/2 x 3 = 4 1/2
1 1/2 + 1 1/2 + 1 1/2 = 4 1/2
PLEASE HELP Marcos needs to save $2,000 for college next year. If he has 12 months before he needs the money, how much will he need to save every month? Round to the nearest dollar.
Answer:
167
Step-by-step explanation:
2,000/12=166.66=167
Answer:
2000 divided by 12= 166.67
Step-by-step explanation:
he would need $166.67 every month so they can reach their goal.
What is the end behavior of the graph?
Hiroaki says that a constant of proportionality must be a whole number and cannot be a fraction or a decimal. Explain why Hiroaki is incorrect.
Hiroaki is mistaken since the line should pass through the origin, negating the possibility of the proportionality constant being a simple whole number.
What are Whole Numbers?Whole numbers are defined as natural numbers plus zero (0). We are aware that the term "natural numbers" refers to a group of counting numbers beginning with 1, 2, 3, 4, and so forth. Whole numbers are a collection of numbers that don't contain any fractions, decimals, or even negative integers. It is made up of zero and positive integers. Alternately, we may define whole numbers as the collection of non-negative integers. The inclusion of zero in the set of whole numbers marks the main distinction between them and natural numbers.
What is a fraction?An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.
What is a decimal ?A decimal is a number that is divided into two parts: a whole and a fraction. Between integers, decimal numbers are used to express the numerical value of complete and partially whole quantities.
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Evaluate j(-1) given j(x)=2x^4-x^3-35x^2+16x+48 . Explain what your answer tells you about x+1 as a factor.
Answer:
ਹੋ ਹੈਰਾਨ ਹੋ ਜਾਵੋਗੇ ਤਾਂ ਉਹ ਵੀ
Step-by-step explanation:
ਸਭ ਹੱਕ ਹੈ ਇਸ ਦਾ ਕਾਰਨ ਹੈ ਅਤੇ ਨਜ਼ਰਨਜ਼ ਦੀ ਵਰਤੋਂ ਵਿਚ ਆਪਣੀ ਆਵਾਜ਼ ਬੁਲੰਦ ਕਰਦਾ ਸੀ ਉਹ ਇਸ ਮੌਕੇ ਉਨ੍ਹਾਂ ਦੇ ਉਲਟ ਹਨ ਪਰ
13x-12x+45•12=14-12x-10•5
Answer:
[tex]x=\frac{576}{11}[/tex]
Step-by-step explanation:
13x - 12x + 45 * 12 = 14 - 12x - 10.5
Multiply first
13x - 12x + 540 = 14 - 12x - 50
Combine like terms
x + 540 = 12x - 36
Subtract x from both sides
540 = 11x - 36
Add -36 to both sides
576 = 11x
Divide both sides by 11
[tex]x=\frac{576}{11}[/tex]
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Which interval contains a local minimum for the
graphed function?
Use the slope formula to find the slope between the given two points?
(2, 1) and (8,9)
Answer:
4/3
Step-by-step explanation:
Slope = (y2-y1)/(x2-x1)
(9-1)/(8-2)
4/3
Answer:
[tex]\frac{4}{3}[/tex]
Step-by-step explanation:
(2,1) (8,9)
The formula that you would use is:
[tex]\frac{y_{2}-{y_1} }{x_2-x_1}[/tex]
So, 2 could be [tex]x_1[/tex] and 1 could be [tex]y_2[/tex]
and 8 could be [tex]x_2[/tex] and 9 could be [tex]y_2[/tex]
When we insert these numbers into the equation, we get:
[tex]\frac{9-1}{8-2}[/tex]
When we solve that we get:
[tex]\frac{8}{6}[/tex]
Now we simplify it by dividing both the numerator and denominator by 2, which would give us:
[tex]\frac{4}{3}[/tex]
donna recipe calls for 2 1/3 cups of sugar for each cake. Donna wants to make 5 cakes. How many cups of sugar will she need
The number of cups of sugar will be 11²/₃.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that Donna's recipe calls for 2¹/₃ cups of sugar for each cake. Donna wants to make 5 cakes.
The number of cups of sugar will be,
Number = 2¹/₃ x 5
Number = (7/3) x 5
Number = 35 / 3
Number = 11²/₃.
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1 + 2u < 7
help me please thxa
Answer:
u < 3
Step-by-step explanation:
Original Equation:
1 + 2u < 7
Subtract 1 from both sides.
2u < 6
Divide both sides by 2.
u < 3
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Identify the independent and dependent variables. Then write a rule in function notation for the situation, letting x represent the independent variable.
A concert ticket costs $60.
Answer:
independent: number of tickets purchased;
dependent: total cost;
rule: f(x) = 60x
Step-by-step explanation:
The independent variable is the input of a function (the variable whose value determines the value of the output, or dependent variable). In this case, the independent variable is the number of tickets purchased.
The dependent variable is the output of a function (the variable whose value depends on the value of the input, or independent variable). In this case, the dependent variable is the total cost of all tickets purchased.
The total cost of all tickets purchased is equal to $60 times the number of tickets x. Therefore, a function rule for the total cost of all tickets purchased is f(x) = 60x.
Suppose y varies directly with x, and y = 6 when x = 18. What is the value of y when x = 9?
A:9
B:27
C:1
D:3
whoever answers first gets brainlest
Answer: Answer what??
Step-by-step explanation:
Is 0.135 a rational number
Answer:
0.135 is an irrational number because the decimal is not repeating
Step-by-step explanation:
What is the value of the expression below when w=2w=2?
8w^2 +2w+8
8w
2
+2w+8
PLS HELP
Answer: 33
Step-by-step explanation:
Answer:
Step-by-step explanation:
33
What is the slope of the line that passes through the points (9,4) and( (9,-5) write your answer in simplest form
Answer:
undefinded
Step-by-step explanation:
What is the solution to -4-2x + 6 = -24?
x = 0 or x = -6
O x = 0 or x = 6
O no solution
Answer:
x=13
Step-by-step explanation:
Help please I will give BRAINLIEST!!!! Which is the function represented by the table?
Answer:
i dont even know i couldnt even tell u that
Step-by-step explanation:
df
What is an equation for the line in slope-intercept form perpendicular to y = -14x – 2 that contains (–3, 1)
Answer:
y= 1/14 x +17/14
Step-by-step explanation:
Lines perpendicular to another line have an opposite reciprocal slope, meaning that the sign is changed, and the fraction is flipped. We are going to use point-slope form to solve.
[tex]y-y_{1} =m(x-x_{1} )\\y-1 =\frac{1}{14} (x+3 )\\y-1=\frac{1}{14}x+\frac{3}{14}\\y=\frac{1}{14}x+\frac{17}{14}[/tex]
Alice’s dog eats 9/4 pounds of dog food each day. How much dog food will the dog eat in 30 days?
135 pounds
135/2 pounds
135/4 pounds
135/9 pounds
Answer:
135/2
Step-by-step explanation:
In 1 day the dog eats 9/4 lbs
In 30 days the dog eats (9/4) * 30 lbs
= (9 * 30) / 4
= 135/2
Oth John's parents and Marco's parents decide to start a college fund for their children. The expressions below represent the value of each college fund after w weeks. John's College Fund: 43 w + 1814 12 Marco's College Fund: 25 w + 1744
Answer:
Step-by-step explanation:
The question is not clear on what to solve for, but we can solve for the number of weeks in which the two funds will have the same amount.
let the total fund funds be y
and the number of weeks be w
For John's fund the expression is
y=45w+1814------1
Marco's College Fund
y=25 w+1744---------2
equating 1 and 2 we have
45w+1814=25w+1744
45w-25w=1744-1814
20w=-70
divide both sides by 20 we have
w=-70/20
w=-3.5
this means that in 3 and half weeks the two funds will have the same amount in them