Answer:
-| -8 | is less than |-(-8)|
Step-by-step explanation:
-| -8 | =-8
|-(-8)| =8
they are not equal
-| -8 | is less than |-(-8)|
What are the coefficients in this expression, 2x+y-3z? Hint, There is 3 coefficient.
The TV weather forecaster announces that one location has a 75% chance of sleet tomorrow and a 5% chance of snow. What is the probability that it will sleet or snow in this location?
Answer:
80%
Step-by-step explanation:
7 < 12 + c < 13
Pls help me show work
Answer:
−5<c<1
Step-by-step explanation:
Let's solve your inequality step-by-step.
7<12+c<13
7<c+12<13(Simplify all parts of the inequality)
7+−12<c+12+−12<13+−12(Add -12 to all parts)
−5<c<1
Answer:
c∈[-5,1]
Step-by-step explanation:
12+c>7
12+c<13
c>-5
c<1
Sammy's bedroom has the dimensions 9 feet by 15 feet. If the ceiling is 11 feet, what is the area of the smallest wall?
Answer:
99
Step-by-step explanation:
11 and 9 are the smallest dimensions. Multiply them and you get 99.
1. Calculate the simple interest over an amount of N$ 2500 that is invested for 3 years and 6 months at a rate of 7% pa.
Answer:
N$ 612.5
Step by step explaination:
Given,
Principal or'P'=N$2500
Time or'n'=3 years & 6 months or 3.5 years
Rate of profit or 'r'=7% or 7/100
Profit or 'I'=?
_____________________________________
We know,
I=P*n*r
I=2500*3.5*7/100
I=612.5
So,simple interest is N$ 612.5.
f(x)=x -1 g(x)=-4x2 + 4 Find (f o g)(x)
Answer:
4x^2 + 3.
Step-by-step explanation:
f o g(x) = f(4x^2 + 4)
= (4x^2 + 4) - 1
= 4x^2 + 3.
1/2 (6x +4) + 3x - 1 = 3/4 (12 - 8x) solve
Answer:
x = 2/3
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask
If you find this answer helpful, mark it Brainleast ;)
Solve each equation 9-4(2x-1)=45
I think it is done like this but I am not sure.
Simplifying
9 + -4(2x + -1) = 45
Reorder the terms:
9 + -4(-1 + 2x) = 45
9 + (-1 * -4 + 2x * -4) = 45
9 + (4 + -8x) = 45
Combine like terms: 9 + 4 = 13
13 + -8x = 45
Solving
13 + -8x = 45
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-13' to each side of the equation.
13 + -13 + -8x = 45 + -13
Combine like terms: 13 + -13 = 0
0 + -8x = 45 + -13
-8x = 45 + -13
Combine like terms: 45 + -13 = 32
-8x = 32
Divide each side by '-8'.
x = -4
Simplifying
x = -4
The solution to the equation 9 - 4(2x - 1) = 45 is x = -4.
We have,
Distribute the -4 to the terms inside the parentheses:
9 - 4(2x - 1) = 45
9 - 8x + 4 = 45
Combine like terms:
13 - 8x = 45
Move the constant term to the other side of the equation by subtracting 13 from both sides:
13 - 8x - 13 = 45 - 13
-8x = 32
Divide both sides of the equation by -8 to isolate the variable:
(-8x) / (-8) = 32 / (-8)
x = -4
Therefore,
The solution to the equation 9 - 4(2x - 1) = 45 is x = -4.
Learn more about equations here:
https://brainly.com/question/3118662
#SPJ6
The cost of a taxi follows the function C(m) =6+.50m where C is the cost and m is the number of miles. Find the cost for: 10 miles and 20 miles
Answer:
Step-by-step explanation:
c
=
0.6
d
+
1.2
Explanation:
The
3
mile cab ride includes a basic charge as well as the cost for the distance covered.
For a
6
mile trip, the cost is
$
4.80
which means that :
The cost of
3
miles is
$
4.80
−
$
3.00
=
$
1.80
Therefore the cost for
1
mile is
$
1.80
÷
3
=
$
0.60
The basic fee for hiring the cab is
$
3.00
−
$
1.80
=
$
1.20
So the total cost,
c
for a trip of
d
miles will be:
c
=
0.6
d
+
1.2
Simplify the expression (3+5)6
Answer:
48
Step-by-step explanation:
(3+5)6
(8)6
48
Answer:
48
Step-by-step explanation:
since three+five is in parentheses you do that first which equals eight then eight times six equals forty-eight and that is your Answer
The total rainfall for two days was 14.6 mm. The first day's total was 4.5 mm less than the second
day's. How much rain fell on each day in cm?
Answer:
first day = 5.05mm = 0.505cm
second day = 9.55mm = 0.955cm
Step-by-step explanation:
Let x represent first day
Let y represent second day
x + y = 14.6
x = y - 4.5
(y - 4.5) + y = 14.6
2y - 4.5 = 14.6
2y = 14.6 + 4.5
2y = 19.1
Divide both sides by coefficient of y which is 2
y = 9.55
Substituting value of y in the equation x + y = 14.6
x + 9.55 = 14.6
x = 14.6 - 9.55
x = 5.05
To convert the values in mm to cm you divide them by 10 since 1cm=10mm
Someone please help! :(
Answer:
See below.
Step-by-step explanation:
Start with triangle ABC with side BC lying on line n.
Draw a line through point A parallel to line n, and call it line m.
Angles 1 and 3 are alternate interior angle of parallel lines and are congruent.
Angle 2 and 4 are alternate interior angles of parallel lines and are congruent.
The sum of the measures of angles angles 1, BAC, and 2 is 180 since they lie on a line.
m<1 + m<BAC + m<2 = 180
Now we substitute in the angles we know are congruent by alternate interior angles (written above).
m<3 + m<BAC + m<4 = 180
A bakery sells a dozen bagels for $8.50 and a dozen donuts for $3.99. Write an expression for the
cost of buying b dozen bagels and d dozen donuts.
Answer:
Total cost = ($8.50b) + ($3.99d)
Step-by-step explanation:
In a bakery, the cost of a dozen bagels = $8.50
and the cost of a dozen donuts = $3.99
1 Dozen = 12 pieces
Let 'b' represents the number of bagels (in dozen) and d represents dozen donuts.
The expression that represents total cost of b dozen bagels and d dozen donuts would be :
Total cost = ($8.50b) + ($3.99d)
If B is the midpoint of AC, and AC = 8x-20, find BC
Answer:
AC=-160
BC is the midpoint of AC meaning half of AC
-160/2=-80
Amy simplifed this complex fraction problem. Negative 2 and one-half divided by five-fourths = Negative five-halves divided by five-fourths = negative five-halves (five-fourths) = negative StartFraction 10 over 8 EndFraction. The quotient is negative five-fourths. What errors did Amy make? Select all that apply.
Answer:
B, C
Step-by-step explanation:
Amy should have flip the numerator and the denominator of the second fraction before multiplying. She also used addition instead of multiplication for the numerators.
Answer:
B C
Step-by-step explanation:
For x > 3, values of the function f(x) = –(x – 3)^2(x + 2) are negative. On this same interval, which statement correctly describes the values of the additive and multiplicative inverses?
A) Both the additive inverse and the multiplicative inverse are positive.
B) Both the additive inverse and the multiplicative inverse are negative.
C) The additive inverse is positive, while the multiplicative inverse is negative.
D) The additive inverse is negative, while the multiplicative inverse is positive.
Answer:
C) The additive inverse is positive, while the multiplicative inverse is negative.
Step-by-step explanation:
The answer is C on Edge. (VERIFIED Edge Answer)
Make sure to click "thanks" and rate this answer to let others know this is the correct answer for this question.
Edge Tip: Answers do not mix or change.
Can someone help me please
Answer:
congruent angles : are all corresponding angles, exterior and interior alternative angles
congruent to ABE :angles GBC, BCF,HCD
angles FCD and HCD are supplementary angles=180
FCD+HCD=180
como puedo salir de Brainly
Answer:
push the x on the top left corner of the tab
Step-by-step explanation:
Which fraction is nearest in value
Answer:
7/22
Step-by-step explanation:
Answer:
it will be B took the test
Step-by-step explanation:
Matter is not created or destroyed:
what is the value of y in this equation. 3-4y=19
Steps to solve:
3 - 4y = 19
~Subtract 3 to both sides
-4y = 16
~Divide -4 to both sides
y = -4
Best of Luck!
haven't been able to solve nor my tutors please help
Answer:
.5,2.5,1.5,3.0
Step-by-step explanation:
Answer:
.5,2.5,1.5,3.0
Step-by-step explanation:
Jackson bought 555 ounces of raisins for \$4$4dollar sign, 4. How much do raisins cost per ounce?
Answer:
$0.80/oz
Step-by-step explanation:
$4 for 5 ounces
unit cost = price/weight = $4/(5 oz.) = $0.80/oz
Answer:
$00.80 and 1.15 ounces
Step-by-step explanation:
khan said so hope this helps
please help me out, i'm really bad at math
Answer:
Step-by-step explanation:
3. [tex]\frac{3}{16}=\frac{x}{12}[/tex]
36 = 16x
9 = 4x
x = [tex]\frac{9}{4}[/tex]
4. [tex]\frac{x}{120}=\frac{1}{24}[/tex]
x = [tex]\frac{120}{24}[/tex]
x = 5
5. [tex]\frac{a-2}{9}=\frac{2}{3}[/tex]
3a - 6 = 18
3a = 24
a = 8
6. [tex]\frac{b+4}{5}=\frac{7}{4}[/tex]
4b + 16 = 35
4b = 19
b = [tex]\frac{19}{4}[/tex]
7. [tex]\frac{3}{7}=\frac{c+4}{35}[/tex]
105 = 7c + 28
7c = 105 - 28
7c = 77
c = 11
8. [tex]\frac{2c}{11}=\frac{c-3}{4}[/tex]
8c = 11c - 33
11c - 8c = 33
3c = 33
c = 11
9. [tex]\frac{7}{k-2}=\frac{5}{8}[/tex]
56 = 5k - 10
5k = 66
k = [tex]\frac{66}{5}[/tex]
12. [tex]\frac{c+1}{c-2}=\frac{4}{7}[/tex]
7c + 7 = 4c - 8
7c - 4c = -15
3c = -15
c = -5
13. [tex]\frac{v}{4}= \frac{7}{8}[/tex]
v = [tex]\frac{7}{2}[/tex]
14. [tex]\frac{9}{14}=\frac{3}{n}[/tex]
9n = 42
n = [tex]\frac{42}{9}[/tex]
n = [tex]\frac{14}{3}[/tex]
15. [tex]\frac{b+13}{2}=\frac{-5b}{3}[/tex]
3b +39 = -10b
13b = -39
b = -3
16. [tex]\frac{3b}{b-4}=\frac{3}{7}[/tex]
21b = 3b - 12
21b - 3b = -12
18b = -12
b = -[tex]\frac{12}{18}[/tex]
b = [tex]-\frac{2}{3}[/tex]
17. [tex]\frac{x+2}{2x-6}=\frac{3}{8}[/tex]
8x + 16 = 6x - 18
8x - 6x = -18 - 16
2x = -34
x = -17
Solve for x: -4 x+5 =-16
Answer:
Step-by-step explanation:
X=5.25
what is the value of eight to the power of 0
Answer:
[tex]\Huge \boxed{1}[/tex]
[tex]\rule[225]{225}{2}[/tex]
Step-by-step explanation:
[tex]8^0[/tex]
Applying exponent rule : [tex]x^0 =1[/tex]
[tex]8 ^0 \Longrightarrow 1[/tex]
[tex]\rule[225]{225}{2}[/tex]
The sum of three numbers is 108. The second number is four times greater than the first number, and the third number is 18 more than the first. Find the largest of the three numbers.
Answer:
450
Step-by-step explanation:
108 x 4 +18
Please answer all of them and give steps.
Answer:
Step-by-step explanation:
1. 12a = 4
12a/12 = 4/12
a = 1/3
2. 2c = 7(8/7)
2c = 8
c = 4
3. 5h = 6(-3/8)
5h = -18/8
5h = -9/4
20h = -9
h = -9/20
4. -27m = -4
m = 4/27
5. -42p = 21
p = -21/24 = -1/2
6. -7x = 4/7
x = -4
7. 9n = -40/9
n = -40
8. 15g = -24
g = -24/15 = -8/5
9. 4s = 56
s = 14
10 -5t = -9(2/3)
-5t = -6
t = 6/5
Factor completely
4x^2 - 18x - 36
Answer: 2(2x + 3)(x - 6)
Step-by-step explanation: For any factoring problem you do, your first
task will be to determine if a GCF exists for the original polynomial.
If a GCF does exist, it must be factored out as the first step to the problem.
In the problem you see here, the 3 terms in
the original polynomial have a GCF of 2.
So a 2 must be factored out as your first step.
This leaves you with 2(2x² - 9x - 18).
This does not make your life a whole lot easier however
because you still have a coefficient on the x squared term.
Factoring from here, you get 2(2x + 3)(x - 6).
Answer:
2(x - 6)(2x + 3)
Step-by-step explanation:
There are a few steps to factoring depending on the polynomial.
Step 1. Factor our a common factor if possible.
Every term is divisible by 2, so factor out a 2.
4x^2 - 18x - 36 =
= 2(2x^2 - 9x - 18)
Step 2. We need to factor the quadratic trinomial.
Now we have a quadratic trinomial, in which the x^2 term is not plain x^2, but it has a coefficient of 2.
Our polynomial is of the form ax^2 + bx + c, with "a" not equal to 1.
We have 2x^2 - 9x - 18, so we have a = 2, b = -9, c = -18.
We can try guessing, but instead, I will use the "ac" method.
Step A. Multiply coefficients ac:
ac = 2(-18) = -36
Step B. Now we need two numbers that add to b and multiply to ac.
We need two numbers that add to -9 and multiply to -36.
The numbers are -12 and 3 since (-12)(3) = -36, and -12 + 3 = -9.
We now break up the middle term, -9x, using these two numbers.
= 2(2x^2 - 12x + 3x - 18)
Now we factor by grouping. Factor a common factor out of the first two terms, and factor a common factor out of the last two terms.
= 2[2x(x - 6) + 3(x - 6)]
x - 6 is a common factor inside the brackets, so we factor it out inside the brackets.
= 2[(x - 6)(2x + 3)]
= 2(x - 6)(2x + 3)
Health officials in Parsnipville are concerned about the recent outbreak of the flu. While scientists are working hard to find a vaccine, the town leaders are turning to you to predict how many people will be sick over time. They hope to find a vaccine in a week. Here are the facts: The epidemic started on Day 0 when Velma and Stanley returned from their exotic jungle vacation with symptoms of the flu. Each day, a sick person infects two additional people. The town of Parsnipville has 3800 citizens.
Answer:
4372 people would have been sick over time.
Step-by-step explanation:
Since the vaccine would be found in a week, then the over time is a week (7 days). Each day, a sick person infects two additional people.
Number of people infected by Velma can be predicted as follows:
Day 1 - 2, Day 2 - 6, Day 3 - 18, Day 4 - 54, Day 5 - 162, Day 6 - 486, Day 7 - 1458
Number of people infected by Velma = 1458 + 486 + 162 + 54 + 18 + 6 + 2
= 2186
Also, number of people infected by Stanley can be predicted as follows:
Day 1 - 2, Day 2 - 6, Day 3 - 18, Day 4 - 54, Day 5 - 162, Day 6 - 486, Day 7 - 1458
Number of people infected by Stanley = 1458 + 486 + 162 + 54 + 18 + 6 + 2
= 2186
Total number of people than can be infected over time = 2186 + 2186
= 4372
Therefore, the predictable number of infected people over time would be 4372. All citizens of Parsnipville would have been infected before the vaccine is available.
Answer:
Step-by-step explanation:
ASSUMING that only 4 new people get sick a day then we would have the equation 4x+2