Answer:
1 x 10^-7
Step-by-step explanation:
[H+] = 10^-pH
[H+] = 10^-7
the graph of y=sin x and y=cos x are identical except for a horizontal shift
Consider the equation 5 – 3(2x – 7) = 12 – 5(x – 2). Is x = 2 a solution to this
equation? Is x = 4 a solution to this equation?
Answer:
[tex]\sf x=4[/tex]
Step-by-step explanation:
[tex]\sf 5 - 3(2x - 7)=12 - 5(x - 2)[/tex]
To get rid of the parentheses, we'll apply the distributive property. Staring with the left side, multiply -3 by (2x-7).
[tex]\sf 5 - 6x+21=12 - 5(x - 2)[/tex]
5+ 21= 26
[tex]\sf 26 - 6x=12 - 5(x - 2)[/tex]
Now, let's do the same thing to the right side. Multiply -5 by (x-2) »12−5x+10, than add 12+ 10 = 22 .
[tex]\sf 26 - 6x=22 - 5x[/tex]
Combine like terms.
[tex]\sf 26 - x=22[/tex]
Subtract 26 from both sides.
[tex] \sf - x= - 4[/tex]
Multiply both sides by -1.
[tex]\sf x=4[/tex]
What is the value of the rational expression below when xis equal to 4?
x-12/x-8
Answer:
= -7
Step-by-step explanation:
given x = 4
12/4 = 3
4 - 3 - 8 = -7
Question 2 of 40
If a population is.
a sample of the population could be
A. 6th grade students whose last name begins with "T"; all students
in 6th grade
B. people in the front row; the entire audience
C. all the people at the park; the kids on the playground
о
D. trees over 20 feet tall; the entire forest
All of these can be samples but the best example is 6th grade students whose last name begins with "T"; all students in 6th grade
What is a sample?A sample refers to a small portion of a population. Most samples are selected randomly to make sure the sample represents all the population but they can also be selected based on a specific criterium.
What is one example of a sample?One example of this concept is 6th grade students whose last name begins with "T"; all students in 6th grade because the student whose last name begins with "T" are a fraction of all the population. Moreover, they are more likely to represent all the population.
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1. Are the side lengths congruent?
2. Are the opposite sides parallel?
3. Are the adjacent sides perpendicular?
4. The most specific name for this quadrilateral is:
Answer:
opposite sides are congruentopposite sides are paralleladjacent sides are not perpendicularthe figure is a parallelogramStep-by-step explanation:
An easy way to determine the nature of the quadrilateral is to look at the lengths and midpoints of the diagonals. Adding and subtracting the coordinates of one end point from the other can tell what you need to know.
The diagonals of a parallelogram are mutual bisectors. The diagonals of a rhombus are perpendicular. The diagonals of a rectangle are congruent.
__
diagonal ACThe difference of end points of diagonal AC is ...
C -A = (7, 2) -(-6, 1) = (13, 1)
The sum of the end points of diagonal AC is ...
C +A = (7, 2) +(-6, 1) = (1, 3)
diagonal BDThe difference of end points of diagonal BD is ...
B -D = (0, 7) -(1, -4) = (-1, 11)
The sum of end points of diagonal BD is ...
B +D = (0, 7) +(1, -4) = (1, 3)
comparison of diagonalsmidpoints
The two diagonals have the same end point sum, (1, 3), meaning their midpoints are coincident. The figure is a parallelogram.
lengths
The lengths of the diagonals will be the same if the sum of squares of the coordinates of the end-point differences are the same.
Σ(C -A)² = 13² +1² = 170
Σ(B -D)² = (-1)² +11² = 122 ≠ 170 . . . . . not a rectangle
perpendicularity
The diagonals will be perpendicular if the "dot product" of the end-point differences is zero.
x1·x2 +y1·y2 = 13(-1) +1(11) = -2 ≠ 0 . . . . not a rhombus
The most specific name for this quadrilateral is parallelogram.
_____
Opposite sides of a parallelogram are congruent and parallel.
Adjacent sides of a rectangle are perpendicular. This is not a rectangle, so adjacent sides are not perpendicular.
A parallelogram that is not a rectangle or rhombus is described most specifically as a parallelogram.
Five more than a number p is less than 17.
Answer:
2x-15
Step-by-step explanation:
Found it on a Phrase translator to equations.
Which expression is another way to write 10,000?
10 × 10 × 10
10 × 10 × 10 × 10
10 × 10 × 10 × 10 × 10
10 × 10 × 10 × 10 × 10 × 10
==============================
[tex] \large \sf \underline{Question:}[/tex]
Which expression is another way to write 10,000?
==============================
[tex] \large \sf \underline{Answer:}[/tex]
[tex] \qquad\quad\large \bold{10 \times 10 \times 10 \times 10}[/tex]
==============================
[tex] \large \sf \underline{Solution:}[/tex]
By getting the answer you just multiply 10 directly by 10 until you get what you are looking for;
[tex] \rm{10 \times 10 = \pmb{100}}[/tex][tex] \rm{ 100 \times 10 = \pmb{1000}}[/tex][tex] \rm{1000 \times 10 = \pmb{10000}}[/tex][tex] \rm { \underline{ \pmb{10 \times 10 \times 10 \times 10 = 10000}}}[/tex]Hence, proven.
==============================
Answer:
Step-by-step explanation:
10000
Mia has two cylindrical bird feeders. Her red bird feeder has a diameter of 10 inches and is 8.3 inches tall. What is the volume of the red bird feeder?
The volume of the red bird feeder will be equal to V=651.88 cubic inches
What is volume?Volume is defined as the space occupied by any object in the three-Dimensions. All three parameters are required for the volume like length,width and height of the cube or Cuboid.
It is given that:-
Diameter = 10 inches
Height = 8.3 inches
Volume=?
Since the feeder is cylindrical so the volume will be calculated as:-
[tex]\rm Volume=\dfrac{\pi }{4}d^2H\\\\\\Volume=\dfrac{\pi }{4}(10)^2(8.3)\\\\\[/tex]
V=651.88 cubic inches
Hence volume of the red bird feeder will be equal to V=651.88 cubic inches
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In circle H with m/GHJ = 70 and GH = 10 units, find the length of arc GJ.
Round to the nearest hundredth.
Answer:
GH8 remains 70 and gh remains 10
Step-by-step explanation:
there is no five or more
The beginning balance in a person's checking account was -10 dollars. After writing three checks for 8, 10 and 17 dollars and making a deposit of 90 dollars, what was the new balance in the account?
Answer:
45
Step-by-step explanation:
he have -10$ that means he have loan
he withdraw 8,10and 17 dollars
now his balance is -45$
now he deposited 90 dollars
now
=90-45$
=45$
Define an axiom in geometry
Answer:
In mathematics or logic, an axiom is an unprovable rule or first principle accepted as true because it is self-evident or particularly useful.
fractions were never my strong suit can anyone help?
Answer:
See below ~
Step-by-step explanation:
Find the decimal values of the fractions on each side :
Left side Right side
⇒ 4/10 = 0.4 ⇒ 2/5 = 0.4
⇒ 1/2 = 0.5 ⇒ 9/12 = 0.75
⇒ 1/4 = 0.25 ⇒ 2/8 = 0.25
⇒ 3/4 = 0.75 ⇒ 5/10 = 0.5
Hence, the matched fractions are :
4/10 ↔ 2/5
1/2 ↔ 5/10
1/4 ↔ 2/8
3/4 ↔ 9/12
Answer:
Step-by-step explanation:
The linear inequality y <-2/3+ 2 is graphed. Which is a solution for the inequality
Answer:
C. (0;0).
Step-by-step explanation:
(0;0) only.
if to substitute the given coordinates into the given inequality and calculate the result, then the left side equals to the right side. Except (0;0).
Find the volume of this please
Answer: 436.8
Step-by-step explanation:
Wendy’s Big Bacon Classic contains how many calories after calculating the
nutrients below?
44 grams Carbohydrate= 44×4 =176_ Calories
36 Grams of Fat= 36×9 = 324 _ Calories
37 Grams of Protein= 37×4 =_148__ Calories
4. What is the percentage of total calories that come from fat in question 3?
Fat Calories:__________
% of Total Calories _________
help with number 4 please and explain it goes with the top answer
Answer:
Fat Calories: 342
50% of Total Calories
Step-by-step explanation:
Total calories:
Carbohydrates:
176
Fat:
324
Protein:
148
Total:
176+324+148=648
648/342 = 2
Meaning that half of the calories come from fat.
Can anyone help me with this please?
Step-by-step explanation:
since there are answer options we don't need to formally solve the system of equations, we only need to try the first point of every option, and see, where the equations are true.
if we cannot find it for the first point, then we would need to try the same thing for the serving points.
let's put (0, 6) into the first equation :
-2×0² + 6 = 6
6 = 6 true
let's put it into the second equation ;
4×0² + 3×6 = 28
18 = 28 false
that eliminates the first 2 answers.
let's put (-1, 4) into the first equation :
-2×(-1)² + 4 = 6
-2×1 + 4 = 6
-2 + 4 = 6
2 = 6 false
that eliminates the third answer.
let's put (-1, 8) into the first equation :
-2×(-1)² + 8 = 6
-2 + 8 = 6
6 = 6 true
let's put it into the second equation :
4×(-1)² + 3×8 = 28
4 + 24 = 28
28 = 28 true
and because the square function delivers the same result for -1 and +1, it is also true for the second point.
and the 4th answer is therefore correct.
two parallel lines are cut by a transveral.
if the measure of 1 is 45 degrees, what is the measure of 5
135
180
45
90
Answer:
is C). 45
Step-by-step explanation:
Alannah picked out 10 apples that cost a total of $5. On her way to the checkout counter, she decided she really wanted 12 apples. If all the apples are the same price, how much will Alannah pay for 12 apples? Explain how each child came up with their answer?
6 dollars for 12
Step-by-step explanation:
if she paid 5 dollars for 10, you would do 10/ 5 which would get you 2 dollars per apple so she would pay 6dollars for 12 apples
How many solutions does this system have?
x-3y=4
-2x+6y=3
O one
O two
O an infinite number
Ono solution
Answer:
two solutions B
Step-by-step explanation:
x-3y=4
-2x+6y=3
Two similar polygons have a scale factor of three. The smaller polygon has an area of 42 cm² and perimeter of 50 cm. what is the area of the larger polygon? and what is the perimeter of the larger polygon?
Step-by-step explanation:
a scale factor applies to every line, that means also to every side of the polygon.
the area of a polygon is always created out of the product (multiplication) of 2 dimensions (or sides).
while a perimeter is a pure sum of sides.
so the perimeter grows by the same factor as the sides : scale factor 3.
the perimeter of the larger polygon is therefore :
50 × 3 = 150 cm
and the area of the larger polygon ?
remember, that the area is always the product of 2 sides (or the sum of products of 2 sides).
and so, the scale factor enters these multiplications twice, and it gets therefore squared : 3×3 = 9.
so, the area of the larger polygon is then
42 × 9 = 378 cm²
Graph the function y = x+2+5. Which point lies on the graph?
A-
(-2,5)
B-
(3,6)
C-
(7,6)
D-
(0,5)
Answer:
A
Step-by-step explanation:
Given equation :
y = x + 2 + 5y = x + 7Evaluating the options
A (-2, 5)
5 = -2 + 75 = 5Correct!How does the graph of f(x) = -4^5x - 3 differ from the graph of g(x) = -4^5x?
A. The graph of f(x) is shifted three units to the right of the graph of g(x).
B. The graph of f(x) is shifted three units down from the graph of g(x).
C. The graph of f(x) is shifted three units up from the graph of g(x).
D. The graph of f(x) is shifted three units to the left of the graph of g(x).
Using translation concepts, it is found that the correct option is given by:
B. The graph of f(x) is shifted three units down from the graph of g(x).
What is a translation?A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.
In this problem, the parent function is:
[tex]g(x) = -4^{5x}[/tex]
The translated function is:
[tex]f(x) = -4^{5x} - 3[/tex]
3 was subtracted from the original function, which means that the translated function was shifted 3 units down, and option B is correct.
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You are out to dinner at Nick’s Pizza with a group of 5 friends. The total cost for pizza and sodas is $38.50. Your waiter did a great job and you would like to leave a 20% tip. Total =
Which of the following sets does not contain any irrational numbers?
PICTURE OF SETS SHOWN BELOW.
Thank you so much
Answer:
C
Step-by-step explanation:
infinite numbers
pi
square root of 80
^all irrational
Match the trigonometric ratios with their values based on the triangle shown in the diagram.
The trigonometric ratios with their values are based on the triangle will be sin D = 4 / 5, sin C = 3 / 5, sin D x cos D = 12 / 25, tan C x tan D = 1, and cos C x tan D = 16 / 15.
What is trigonometry?The connection between the lengths and angles of a triangular shape is the subject of trigonometry.
The triangle is given below.
Then the trigonometric ratios with their values are based on the triangle shown in the diagram and will be
sin D = 4 / 5
sin C = 3 / 5
sin D x cos D = 4 / 5 x 3 / 5
sin D x cos D = 12 / 25
tan C x tan D = 3 / 4 x 4 / 3
tan C x tan D = 1
cos C x tan D = 4 / 5 x 4 / 3
cos C x tan D = 16 / 15
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find the area of the figure. use 3.14 for pi.
a 133.5
b 188.5
c 149.25
d 94.25
Answer:
d. 94.25 in²
Step-by-step explanation:
The area of this composite figure is the sum of the areas of a semicircle and a triangle. Each of those areas can be found using the appropriate formula:
semicircle: A = (π/2)r²
triangle: A = 1/2bh
__
semicircleThe semicircle has a radius equal to half its diameter. The radius is (10 in)/2 = 5 in. Its area is ...
A = (3.14/2)(5 in)² = 39.25 in²
triangleThe area of the triangle with base 11 in and height 10 in is ...
A = 1/2bh
A = 1/2(11 in)(10 in) = 55 in²
total areaThe area of the figure is the sum of the areas of the semicircle and triangle, so is ...
figure area = (39.25 in²) +(55 in²)
figure area = 94.25 in²
There is some algebra in it I think! Thanks!! (I’ll add extra points and brainly just ask:)
Answer:
C. 27
Step-by-step explanation:
27 + 23 = 50
:)
Answer: hii :)
i know this oneeeee ^^ your answer is 27 <3
Step-by-step explanation:
Move all terms not containing x to the right side of the equation.
hopefully this helps you
- Matthew ~
PLEASE HELP I NEED QUICK!!!
3/4 cups of dry rice can make 3 cups cooked rice
1 cup dry ice can make
3÷3/43×4/34cupsFind the volume of the oblique cylinder as pictured below with a = 10 cm, h = 17 cm. Do not include units in your answer. Use 3.14 for pie and round your answer to the nearest hundredth. Do not include units in your answer
The volume of the oblique cylinder that has the given dimension is: 5,338 cm³.
What is the Volume of an Oblique Cylinder?Volume = πr²h, where h is the height and r is the radius of the oblique cylinder.
Given the following:
Radius (r) = a = 10 cmHeight (h) = 17 cmVolume of oblique cylinder = πr²h = (3.14)(10²)(17)
Volume of oblique cylinder = 5,338 cm³
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If a 714-mile trip takes 17 hours, the average speed is?
Answer:
42 mph
Step-by-step explanation:
brainliest/crown please :)