Answer:
see below
Step-by-step explanation:
8x and 56 are not like terms
x is a variable and 56 is a constant
8x can be added to 56 but they cannot be combined together into one term
8x+56 cannot be combined because they are not like terms
c+d is the of c and d
Answer:
sum
Step-by-step explanation:
The sum of c and d is c+d.
How far does a train travel and 3.5 hours if it moves at an average speed of 35 miles /hours?
Answer:
d =122.5 miles
Step-by-step explanation:
We know the formula is
d= rt
d is distance r = rate and t is time
d = 35 miles per hour * 3.5 hours
d =122.5 miles
Answer:
122.5 miles traveled
Step-by-step explanation:
35 miles x 3.5 hours = 122.5 total miles traveled
Determine which package
of laundry soap is the better
buy: 65 oz. for $6.99 or
120 oz. for $12.99.
Answer:
The answer is $3.00
Step-by-step explanation:
None
Answer:
120 oz. for $12.99
Step-by-step explanation:
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What are the coefficients in the expression, 2 + 6 + 10b – 8a?
Answer: 10 and 8
Step-by-step explanation: A coefficient is the number that comes before the variable. I hope this helps :)
The coefficients are the numbers to the left of the variable terms
10b is one variable term with the coefficient 10
-8a is the other variable term with the coefficient -8
The terms 2 and 6 are constants as they don't have any variables multiplied with them.
What is the solution to y + 7 = -9 A. y = -16 B. y = -2 C. y = 2 D. y = 16
Answer:
A. y = -16
Step-by-step explanation:
Hello!
What we do to one side of the equation we have to do to the other.
y + 7 = -9
We have to get y by itself so we have to get rid of the seven by doing the opposite of what it says
The opposite of addition is subtraction so we subtract 7 from both sides
y + 7 - 7 = -9 - 7
Solve
y + 0 = -16
Simplify
y = -16
The answer is A. y = -16
Hope this helps!
Help me !!! Please
And explain me
Answer:
D
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 3, 5) and (x₂, y₂ ) = (-3, - 2)
m = [tex]\frac{-2-5}{-3+3}[/tex] = [tex]\frac{-7}{0}[/tex] ← undefined
Note that division by zero is undefined thas the slope is undefined.
This indicates that the line going through the 2 points is vertical and parallel to the y- axis.
Answer:
Undefined
Step-by-step explanation:
When you calculate he slope it ends up being a vertical line
Order least to greatest: 1.5, 1.1, .9, 1, 1.7, 1.25
Answer:
1,1.1,1.25,1.5,1.7,9
Witch relations is a function
So basically everything but choices B and C are functions.
====================================
Explanation:
A. This is a function as there are no repeated input x values. Each input (x) leads to exactly one output (y).B. This is not a function. We have the input 2 lead to more than one output (1 and 4 at the same time)C. This is not a function. Similar to choice B, we have multiple outputs for a given input. In this case, x = 20 has more than one output.D. This is a function. Any x input will produce only one y output. When graphed, it passes the vertical line test.E. This is a function. This graph passes the vertical line test. It is not possible to draw a vertical line through more than one point on the blue curve, so that's what I mean by "passing the vertical line test".F. This is a function. At any given hour (x), there is exactly one temperature (y) possible. The thermometer is not going to produce multiple readings at any one specific moment in time.If f(x) x^2 — 5 + 3 and g(x) = 1 — 2x, find f(g(x).
Answer:
f(g(x))= 1-2(x^2-5+3)
Step-by-step explanation:
To do this you would plug in x^2-5+3 into the x for the g(x) so you would get f(g(x))= 1-2(x^2-5+3)
Answer:
4x^2+6x-1
Step-by-step explanation:
the question asks for f(g(x)). this means you have to plug in the value of g(x) into the "x" of f(x). (you should always work inside out.)
if you do that, you get this equation : (-2x+1)^2-5(-2x+1)+3 (i changed the 1-2x into -2x+1) because you plug in the g(x) (in this case, -2x+1) into the x's in the f(x) equation.
first you foil the (-2x+1)^2 and get 4x^2-4x+1.
then you distribute -5(-2x+1) and get +10x-5
and you bring down the 3.
so you have 4x^2-4x+1+10x-5+3 and you combine your like terms and get
4x^2+6x-1
which is your answer!
The linear scale factor of two similar shapes is in ratio 3:4. If the area of the smaller shape is 72cm square, find the area of the bigger shape.
Answer:
128 cm²
Step-by-step explanation:
Given the scale factor of 2 similar figures is a : b , then
ratio of areas = a² : b²
Here the scale factor = 3 : 4 , thus
ratio of areas = 3² : 4² = 9 : 16
let x be the area of the larger figure then by proportion
[tex]\frac{9}{72}[/tex] = [tex]\frac{16}{x}[/tex] ( cross- multiply )
9x = 1152 ( divide both sides by 9 (
x = 128
Thus area of larger figure is 128 cm²
The required area of the bigger shape is 128 cm².
The linear scale factor of two similar shapes is in ratio 3:4. the area of the smaller shape is 72cm square. To determine the area of the bigger shape.
What is the Ratio?
The ratio can be defined as the comparison of the fraction of one quantity towards others. e.g.- water in milk.
Linear scale factor ratio of two similar shapes = 3:4
Let the area of the bigger shape = x²
Area of the smaller shape = 72
Now since the ratio is linear = 3 : 4
squaring the ratio = 3²:4²
= 9:16
Now the ratio of the are = 72: x²
Equating the ratios
72/x² = 9/16
x² = 16/9 * 72
x² = 1.77 * 72
x² = 128
Thus, the required area of the bigger shape is 128 cm².
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Derrick does 29 push-ups in the morning and 36 more push-ups in the evening. If he does the same number of push-ups every day of the week for 4 weeks, about how many push-ups will he do in all?
29 + 36 = 65 total pushups per day.
Multiply pushups per day by 7 days per week:
65 x 7 = 455 total pushups per week
Multiply pushups per week by number of weeks:
455 x 4 weeks = 1,820 total pushups.
A two digit number is chosen at random. Find the probality that the number is a perfect square
Answer:
[tex]\Large \boxed{\frac{1}{15} }[/tex]
Step-by-step explanation:
The two-digit perfect squares are 16, 25, 36, 49, 64, 81.
There are 6 numbers that are two-digit perfect squares.
There are a total of 90 numbers that have two-digits.
P(two-digit perfect square) = [tex]\frac{6}{90} =\frac{1}{15}[/tex]
The Probability that the number is a perfect square out of two-digit number is chosen at random is [tex]\frac{1}{15}[/tex] .
What is the probability?Probability is a branch of mathematics that deals with the occurrence of a random event.
For example, when a coin is tossed in the air, the possible outcomes are Head and Tail.
Probability formula :
Probability(Event) = Favorable Outcomes/Total Outcomes
According to the question
A two digit number is chosen at random.
Total number of two digit number are from 10 to 99
i.e
=99-10+1 = 90
or Total Outcomes = 90
Total of perfect square of two-digits are: 16,25,36,49,64,81
Total number of perfect square of two-digits = 6
or Favorable Outcomes = 6
Now , The Probability that the number is a perfect square
Probability(Event) = Favorable Outcomes/Total Outcomes
Probability(Event) = [tex]\frac{6}{90}[/tex]
Probability(Event) = [tex]\frac{1}{15}[/tex]
Hence, the Probability that the number is a perfect square out of two-digit number is [tex]\frac{1}{15}[/tex] .
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FInd BD, Given FE=23.5 will mark Brainliest please answer ASAP
=================================================
Explanation:
Points B, C, and D are midpoints of triangle AFE. This is due to the similar tickmarks showing how the segments are congruent (eg: AB = BE).
Because we have D and B as midpoints, this means segment DB is a midsegment of triangle AFE.
FE = 23.5, so half that is (1/2)*FE = 0.5*23.5 = 11.75 which is the length of DB.
The midsegment DB is half as long as FE, and DB is parallel to FE.
If FE=23.5 in triangle AFE then BD=11.75.
What is triangle?A triangle is a two dimensional figure having three sides, three angles. Two triangles are said to be congruent if all the corresponding sides and corresponding angles are equal.
How to find length of a side?We have been given the length of FE=23.5 and we have to find the length of BD. From the figure we have found that B,C and D are mid points of triangle AFE. This is due to the similar signs shown in the figure showing how the segments are congruent. Because we have D and B are mid points, this means segment BD is a mid segment of triangle AFE.
Therefore BD=1/2* 23.5= 11.75.
Hence if the length of FE=23.5 then the length of BD=11.75.
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what is 40% of 20
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First write 40% as the decimal .40.
The word "of" tells us to multiply.
So we have (.40)(20) which is 8.
So 40% of 20 is 8.
Answer:
8
Step-by-step explanation:
40% of 20
= 40 × 20/100
= 800/100
= 8/1
= 8
Thus, 40% of 20 is 8
In a small town, only 3 of the 10 stores
stay open after 5pm what percentages of stores close at 5pm?
A)30%
B)50%
C)65%
D)70%
Answer:
70%
Step-by-step explanation:
100%-30% = 70%
Im not sure if this is correct. I need help!
Answer:
Option 3
Step-by-step explanation:
If (x, y) is on h(x), then (y, x) is on the inverse.
Thus, if (4, 2) is on the inverse, then (2, 4) must be on the original. (Which it is not, so this option is incorrect)
If (0, 1/2) is on the inverse, then (1/2, 0) must be on the original. (It is not, so this option is also incorrect)
If (0, 1) is on the inverse, then (1, 0) must be on the original. (It is not, so this option is also incorrect)
If (-5, 1) is on the inverse, then (1, -5) must be on the original. (It is not, so this option is incorrect)
The correct answer would be the third option.
1
9. By what rational number must
26
be divided to get
?
39
Answer:
let the unknown rational number be X.
26/X=39
X=39/26
X=3/2
Line a is a perpendicular bisector of line segment K M. It intersects line segment K M at point L. Line a also contains point N. Line segment K L is 9 x +5. Line segment K N is 14 x minus 3. What is the length of segment LM? units
Answer:
The value of segment LM is 9x + 5.
Step-by-step explanation:
Consider the image below.
A perpendicular bisector is a line segment that bisects another line segment into two equal parts and is perpendicular to this line segment.
So from the diagram below we know:
KL = LM
line a is ⊥ to KM
∠NLK = 90°
Since the angle measure of ∠NKL is not provided we cannot determine the value of x.
So, the value of segment LM is 9x + 5.
The answer is 23 units. I got this answer right on this question, if this do help please tap the heart or comment that this helped you. : ) have a lovely day
What is the value of -32+(-4+7)(2)?
0-28
0 -3
O 3
O 15
nunber a that is -27
hope it helps
Answer:
it should be -26
Step-by-step explanation:
-32+(-4+7)(2)
=-32+3×2
=-32+6
=-26
find the perimeter of the quadrant whose radius is 28cm
Answer:
[tex]\huge \boxed{\mathrm{99.98 \ cm}}[/tex]
Step-by-step explanation:
A quadrant is quarter of a circle.
The perimeter of a quarter of a circle is [tex]\frac{2\pi r}{4} +2r[/tex].
The radius [tex]r[/tex] is 28 cm.
[tex]\frac{2\pi (28)}{4} +2(28)= 99.982297...[/tex]
The perimeter of the quadrant with radius 28 cm is approximately 99.98 cm.
Answer:
[tex]\huge\boxed{Perimeter = 99.98\ cm}[/tex]
Step-by-step explanation:
Quadrant is one - fourth of a circle
Perimeter of quadrant = [tex]\frac{2\pi r }{4} + 2r[/tex]
Where r = 28 cm
=> P = [tex]\frac{2(3.14)(28)}{4} + 2(28)[/tex]
=> P = [tex](3.14)(14) + 56[/tex]
=> P = [tex]43.98 + 56[/tex]
=> P = 99.98 cm
produce your answer Frombase four to base 10
Answer:
A. 54₁₀
B. 81₁₀
Step-by-step explanation:
To convert from base 4 to base 10, we simply do the following:
A. 312₄ to base 10
312₄ = (3×4²) + (1×4¹) + (2×4⁰)
312₄ = (3×16) + (1×4) + (2×1)
312₄ = 48 + 4 + 2
312₄ = 54₁₀
Therefore, 312₄ is equivalent to 54₁₀.
B. 1101₄ to base 10
1101₄ = (1×4³) + (1×4²) + (0×4¹) + (1×4⁰)
1101₄ = (1×64) + (1×16) + (0×4) + (1×1)
1101₄ = 64 + 16 + 0 + 1
1101₄ = 81₁₀
Therefore, 1101₄ is equivalent to 81₁₀.
what is the value of y^0
Answer:
1
Step-by-step explanation:
Any number that is raised to the power of 0 is 1.
1^0 = 1
323^0 = 1
k^0 = 1
Hope that helped!!! k
While you are driving along westward at 55 mi./hr you doze for 1.5 seconds. How far have you traveled during your snooze?
Answer: 0.02291666
Step-by-step explanation:
divide 55 by 60 (minutes)
then by 60 again (seconds)
multiply by 1.5
there you go
The person travelled for 0.0229167 miles.
To calculate the distance, we have to multiply the speed by the time taken.
Distance = Speed × Time
Speed = 55 miles per hour.
Time taken = 1.5 seconds = 0.0004167 hours
Note that 3600 seconds = 1 hour
Therefore, 1.5 seconds = 0.0004167 hours
Then, the distance will be:
= Speed × Time
= 55 × 0.0004167
= 0.0229167 miles
The person travelled for 0.0229167 miles.
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Find the value of x.
A. 13 B. 9 C. 12 D. 10
Answer:
C. 12
Step-by-step explanation:
[tex] x \times 3 = 9\times 4[/tex]
[tex] x \times 3 = 36[/tex]
[tex] x = \frac{36}{3}[/tex]
[tex] x = 12[/tex]
3x = 17 Answer Needed Very soon
Answer:
x=17/3
Step-by-step explanation:
divide both sides by 3 to isolate x
Choose the percent that is equivalent to the number. 0.75 A. 0.75% B. 7.5% C. 0.0075% D. 75%
Answer:75
Step-by-step explanation:
Answer:
D. 75%
Step-by-step explanation:
Hello!
To convert a decimal to a percent we move the decimal point two times to the right
0.75 ⇒ 75%
The answer is D.75%
Hope this helps!
What is the value of [tex](8/3)+(-3)^2-(1/2)[/tex]? (Write your answer as a fraction in reduced form).
Answer:
Exact Form 67/6
Mixed Number Form 11 1/6
Step-by-step explanation:
Removed Parenthesis 8/3+(-3)^2-1/2
Group like terms 8/3 - 1/2 + (-3)^2
Apply the exponent rule 8/3 - 1/2 + 3^2
Find the LCM (least common multiple) of 3 & 2; 6
Adjust Fraction based on LCM 8/3 = 8*2/3*2 = 16/6 1/2 = 1*3/2*3 = 3/6
16/6 - 3/6
since denominators are equal combine the fraction [tex]\frac{16-3}{6}[/tex]
Subtract the numbers 3^2 + 13/6
3^2 = 9 = 9 +13/6
9*6/6 + 13/6
[tex]\frac{9*6 + 13}{6}[/tex] = 67/6
How to solve -3 + 10 - 1
Answer:
6
Step-by-step explanation:
-3+10-1
10-4
=6
hope this helps
Answer:
6
Step-by-step explanation:
You can add -3 and -1 to make -4 and subtract from 10.
-3-1+10= 6
Darryl bought nine candy bars for a total of $54. How much did each candy bar cost?
Answer:
$6
Step-by-step explanation:
Divide $54 with 9 canday bars
So, 54/9
=$6
Each candy bar cost $6
Verify the identity. ( 1-sin x)/cosx=cosx/(1+sin x)
Answer:
See below.
Step-by-step explanation:
I'm going to use what I assume is the correct question.
[tex] \dfrac{1 - \sin x}{\cos x} = \dfrac{\cos x}{1 + \sin x} [/tex]
[tex] \dfrac{\cos x}{\cos x} \times \dfrac{1 - \sin x}{\cos x} = \dfrac{\cos x}{1 + \sin x} [/tex]
[tex] \dfrac{\cos x(1 - \sin x)}{\cos^2 x} = \dfrac{\cos x}{1 + \sin x} [/tex]
Now use the identity
[tex] sin^2 x + cos^2 x = 1 [/tex]
[tex] cos^2 x = 1 - sin^2 x [/tex]
We replace [tex] \cos^2 x [/tex] in the left denominator.
[tex] \dfrac{\cos x(1 - \sin x)}{1 - \sin^2 x} = \dfrac{\cos x}{1 + \sin x} [/tex]
Factor the difference of squares in the left side denominator.
[tex] \dfrac{\cos x(1 - \sin x)}{(1 + \sin x)(1 - \sin x)} = \dfrac{\cos x}{1 + \sin x} [/tex]
[tex] \dfrac{\cos x}{1 + \sin x} = \dfrac{\cos x}{1 + \sin x} [/tex]