Answer:
b
Step-by-step explanation:
* Will Mark BRAINLIEST * fast plss!! *easy*
I think it might be B or D.
(Pre-Algebra)
(08.02)How many solutions are there for the system of equations shown on the graph?
A) No solution
B) One solution
C) Two solutions
D) Infinitely many solutions
Answer:
One Solution (C)
Step-by-step explanation:
This is one solution because they only intersect once. No solution=no intersect 2 solution=intersect twice infinite solutions= same line
Work out the value of x
Step-by-step explanation:
X+3X+90=360
4X+90=360
4X=360-90
4X=270
270÷4=67.5
X=67.5 degrees
Write down all the prime numbers between 41
Answer: Step-by-step explanation:
List of prime numbers before 41 (including 41 itself): 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41.
Write down two factors of 18
Answer:
1, 2, 3, 6, 9, 18
Step-by-step explanation:
(-4)x(-6) what is the answer
Answer:
24
Step-by-step explanation:
( - 4 ) x ( - 6 ) = 24
24 is the answer.
Sarah drove 116 miles in 4 hours. If she drove at a constant rate, how far did she travel each hour?
Answer:
28 because 116÷4=29 so she traveled 28 miles per hour
Answer:
Sarah drove 29 miles per hour.
Step-by-step explanation:
116 divided by 4 is 29.
Coach Hutchison is the basketball coach at school . she asks players to record their heights. The histogram shows the data she has collected
What unit of measure is used in the Study?
__________________________________
O A. Inches
O B. Feet
O C. Number of playerd
O D. Number of observations
Answer:
The unit of measure used in the study is "inches"
Find the area of the polygon. 26ft. 16ft. 6ft. 2ft. 4ft.
Answer:
296 ft²
Step-by-step explanation: 5 18 7 20
There are a few ways to calculate the area of the tihis composit figure.
The one way is to calculate the entire area of the big rectangle with the voided area and substract the smaller voided rectangle
Big rectangle with voided area
26 × 16 = 26 × 10 + 26 × 6 = 260 + 156 = 416
Small Void Rectangle = 6 × (26 - 2 - 4)
= 6 × 20
= 120
Total area = Big rectangle with voided area - Small Void Rectangle
= 416 - 120
= 296 ft²
another way is to add up three areas
large filled rectangle + smaller filled rectangle + smallest filled rectangle
10 × 26 + 4 × 6 + 2 × 6
260 + 24 + 12
296 ft²
6)
Write an equation in slope-intercept form of the line perpendicular to y =
that passes through the point (3, 4).
You are given a line with a slope of -4. What would the slope of a parallel line be?
A pyramid is 24 feet tall a scaled model has a height of 2 ft and is 1 foot wide at the base. Identify the scale factor that was used to create the model.
Multiple Choice Answers:
1/12
1/24
12
24
Answer:
1/12
Step-by-step explanation:
Given the following :
Actual height of pyramid = 24 ft
Dimension of scaled model :
Height = 2ft ; width = 1ft
a scale factor is a number used to reproduce a reduced dimension of a model by multiplying the actual dimeznsion or size of the model or object.
Since the height is of the scaled model is less than the actual height of the pyramid ; then it could be said that the scale factor is a fraction, because reduction has occurred.
(Height of scaled model / height of actual pyramid)
(2ft / 24ft) = 1/12
trading r turtle I’m trying to get rid of it
HELP ME PLSSSSSS!!!!!!!
Answer:
1) [tex]m\angle x = 35^{\circ}[/tex], 2) [tex]m\angle x = 60^{\circ}[/tex], 3) [tex]m \angle x = 40^{\circ}[/tex]
Step-by-step explanation:
1) Triangle is a right triangle since tangent line is perpendicular to the radius of the circle. Based on the fact that the sum of internal angles in triangles equals 180°, we find the value of the angle [tex]x[/tex]:
[tex]m\angle x = 180^{\circ} - 90^{\circ} - 55^{\circ}[/tex]
[tex]m\angle x = 35^{\circ}[/tex]
2) Both triangles are symmetrical right triangles since tangent lines are perpendicular to the two radii and common side is parallel to the third radius. Based on the fact that the sum of internal angles in triangles equals 180°, we find the value of the angle [tex]x[/tex]:
[tex]m \angle x = 180^{\circ} - 90^{\circ} - 30^{\circ}[/tex]
[tex]m\angle x = 60^{\circ}[/tex]
3) The figure is formed by two symmetrical right triangles. These triangles are right-angled and symmetrical since tangent lines are perpendicular to the two radii and common side is parallel to the third radius. Based on the fact that the sum of internal angles in quadrilaterals equals 360°, we find the value of the angle [tex]x[/tex]:
[tex]m\angle x = 360^{\circ} - 180^{\circ} - 140^{\circ}[/tex]
[tex]m \angle x = 40^{\circ}[/tex]
please help!!! im really confused abt this
The picture demonstrates the greenhouse effect because all the grass within the rectangle is green. This is due to the fact that it received the nutrients it required. Carbon dioxide molecules provide the initial greenhouse heating needed to maintain water vapor concentrations. When carbon dioxide concentrations drop, Earth cools, some water vapor falls out of the atmosphere, and the greenhouse warming caused by water vapor drops.
Which statement correctly explains whether Limit of h (x) as x approaches 9 exists?
Answer:
The answer is A
Step-by-step explanation:
"The limit does not exist because the values of h(x) seem to oscillate between random values around x = 9" is correct edg 2021
The correct statement is "The limit does not exist because the values of h(x) seem to oscillate between random values around x = 9".
What is a one-sided limit for function of a single variable?In rough terminologies, the limit from one side is when we only use one side of the function with respect to the considered point of interest (in input) to predict the value of the function at that point.
For a limit of a function f(x) to exist at a point a,
[tex]\lim_{x \to a^-} f(x) = \lim_{x \to a^+} f(x)[/tex]
That is, it has to approach (a) from both sides toward the same value, thus it cannot be oscillating.
From the table, looking at the value of slightly less than 9,
[tex]\lim_{x \to 9^-} f(x)= 4.73[/tex]
Looking at the value of slightly more than 9,
[tex]\lim_{x \to 9^+} f(x) = -4.73[/tex]
Since the lateral limits are different, the limit does not exist.
The correct statement is "The limit does not exist because the values of h(x) seem to oscillate between random values around x = 9".
Learn more about limits;
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Gina's Hours
October November
Week 1 40 32
Week 2 34 30
Week 3
36
40
Week 4
40
24
The table shows the hours Gina worked during October and November. Select ALL correct statements,
A)
The range for the month of October is 6.
B)
40 summarizes the data with a single number
35 summarizes the data with a single number
D)
The median for the month of October is 40.
E
16 describes how the values vary with a single number
Help plz
Answer:
A) The range for the month of October is 6.
C) 35 summarizes the data with a single number.
E) 16 describes how the values vary with a single number.
Step-by-step explanation:
Week 1 | 40 Week 1 | 32
Week 2 | 34 Week 2 | 30
Week 3 | 36 Week 3 | 40
Week 4 | 40 Week 4 | 24
The ordered data can be written out as follows :
October :
34, 36, 40, 40
November :
24, 30, 32, 40
Whole data:
24, 30, 32, 34, 36, 40, 40, 40
Range = maximum - minimum :
October range = 40 - 34 = 6
Summarizing the fat with a single number :
Take the median of the whole data :
1/2(n+1)th term
1/2(9) = 4.5 th term
(34 + 36) /2 = 35
Median for October :
(36 + 40) / 2 = 38
Variation of all values :
Take the range :
40 - 24 = 16
Bethany is 57 inches tall Bethany brother Scott is 2 inches taller than she is what is scoot height in feet
Answer:
5'9 ft
Step-by-step explanation:
He was built different
What is the volume of this sphere?
Use a 3.14 and round your answer to the nearest hundredth.
1 ft
cubic feet
Answer:
Solution given
r=1ft
π=3.14
now
Volume of sphere=⁴/3 πr³=⁴/3×3.14×1³=4.186ft³
=4ft³
Can someone please help me on this table?
Answer:
Step-by-step explanation:
Given expression which gives the distance is 16t².
Here, t = time or duration
For t = 20 seconds,
16t² = 16(20)²
= 6400 feet
For t = 21 seconds,
16t² = 16(21)²
= 7056 feet
For t = 22 seconds,
16t² = 16(22)²
= 7744 feet
For t = 23 seconds,
16t² = 16(23)²
= 8464 feet
Therefore, complete table will be,
t 20 21 22 23
h 6400 7056 7744 8464
[tex]tan20+4sin20=\sqrt{3}[/tex]
tan( 20 ) + 4 Sin( 20 ) =
( Sin( 20 ) / Cos( 20 ) ) + 4 Sin( 20 ) =
Sin( 20 ) + 4 Sin( 20 ).Cos( 20 ) / Cos( 20 ) =
Sin( 20 ) + 2 × 2 Sin(20).Cos(20)/ Cos(20) =
Sin( 20 ) + 2 × Sin( 40 ) / Cos( 20 ) =
Sin( 20 ) + 2Sin( 40 ) / Cos( 20 ) =
Sin( 20 ) + 2Cos( 50 ) / Cos ( 20 ) =
Sin( 20 ) + 2Cos( 20 + 30 ) / Cos( 20 ) =
________________________________
2 × Cos( 30 + 20 ) =
2 × [ Cos(30).Cos(20) - Sin(30).Sin(20) ] =
2 × [ √3/2 × Cos(20) - 1/2 × Sin(20) ] =
√3 Cos(20) - Sin(20)
_________________________________
Sin( 20 ) + 2Cos ( 20 + 30 ) / Cos( 20 ) =
Sin( 20 ) + √3 Cos(20) - Sin(20) / Cos(20) =
Sin(20) - Sin(20) + √3 Cos(20) / Cos(20) =
0 + √3 Cos(20) / Cos(20) =
√3 Cos(20) / Cos(20) =
Cos(20) simplifies from the numerator and denominator of fraction
√3 × 1 / 1 =
√3
And we're done ....
Q3)
Find the Correlation of the following two variables
X: 2, 3, 5, 6
Y: 1, 2, 4, 5
ILL GIVE BRAINLEST:))
Answer:
2 and 3
Step-by-step explanation:
2) If two polygons are similar, the ratio of their areas is equal to the square of the ratio of their corresponding sides.
side ratio: 1/4------- area ratio: 1²/4² = 1/16 = 1:16 ratio
3)If two polygons are similar, then the ratio of their perimeters is equal to the ratios of their corresponding side lengths.
The ratio of the perimeters is the same as the scale factor.
scale 1:4
PLS HELP LOOK AT PHOTO!! I WILL MARK BRAINIEST!!!
17/55
Streak
All the following are Perfect Squares except for which one?
121
150
100
144
US 23:00
Double Jeop
Streck Saver
Music ofl
O
Answer:
150
Step-by-step explanation:
Answer:
121
Step-by-step explanation:
A chemist has three different acid solutions. The first acid solution contains 25 % acid, the second contains 45 % and the third contains 90 %. He wants to use all three solutions to obtain a mixture of 50 liters containing 70 % acid, using 2 times as much of the 90 % solution as the 45 % solution. How many liters of each solution should be used?
the chemist should use:
Answer:
Wyzant
ALGEBRA WORD PROBLEM
Dorian S. asked • 06/28/17
THREE LINEAR EQUATIONS WITH THREE VARIABLES
A chemist has three different acid solutions. The first acid solution contains 15% acid, the second contains 25%,
and the third contains 70%. He wants to use all three solutions to obtain a mixture of 40 liters containing 45%
acid, using 2 times as much of the 70% solution as the 25% solution. How many liters of each solution should be used?
How to set up as three linear equations to find the answer?
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1 Expert Answer
By:
Best
Arthur D. answered • 06/28/17
TUTOR 4.9 (67)
Forty Year Educator: Classroom, Summer School, Substitute, Tutor
ABOUT THIS TUTOR ›
set up 2 equations
the first equation...
15%*x+25%*y+70%*2y=45%*40
0.15x+0.25y+1.4y=0.45*40
0.15x+1.65y=18
multiply all terms by 100
15x+165y=1800
divide all terms by 15
x+11y=120
the second equation...
x+y+2y=40
x+3y=40
x=40-3y
substitute into the first equation x+11y=120
40-3y+11y=120
40+8y=120
8y=120-40
8y=80
y=80/8
y=10 liters
x+3*10=40
x+30=40
x=40-30
x=10 liters
10 liters of 15%, 10 liters of 25%, and 20 liters of 70%
check:
10*15%=1.5
10*25%=2.5
20*70%=14
1.5+2.5+14=18
18/40=9/20=45/100=45%
45%*40=18
hope it helps
please mark brainliest
If a patient smokes 2 packs of cigarettes per day for 20 years how many pack are smoke per year?
Answer:
730
Step-by-step explanation:
2x365=730
I need help will give out Brainlyest
Answer:
[tex] \frac{6}{6 - 2} = \frac{6}{4} = \frac{3}{2} [/tex]
Answer:
[tex] \rm \rightharpoonup \: f(x) = \frac{x}{x - 2} \\ \rm \rightharpoonup \: f(6) = \frac{6}{6 - 2} \\ \rm \rightharpoonup \: \frac{6}{4} \\ \rm \rightharpoonup \: \frac{3}{2} [/tex]
Hence option A is correctWhat is the arc measure of major arc ADE in degrees?
The scatterplot shows because the values of y as the values of x increase.
Answer: The scatterplot shows a positive correlation because the values of y increase as the values of x increase.
Which of the following is the best approximation of the correlation coefficient for the data displayed in the scatterplot? 0.5
Answer:
The scatterplot shows a positive correlation because the values of y increase as the values of x increase.
Which of the following is the best approximation of the correlation coefficient for the data displayed in the scatterplot? 0.5
Step-by-step explanation:
I hope that helps!!!!!!!!!!
Find the volume of each figure. Round your answer to the nearest tenth, if necessary
Answer:
V = 168 km³
Step-by-step explanation:
We are given a triangle prism.
Volume of a triangle prism = ½*a*c*h
Where,
a = 8 km
c = 6 km
h = 7 km
Substitute
V = ½*8*6*7
V = 4*6*7
V = 168 km³
Y varies inversely with x and when x = 7, y = 15. Find x when y = 21
x=
Answer:
x = 5
Step-by-step explanation:
Use the inverse variation equation, y = k/x
Plug in 7 as x and 15 as y, then solve for k:
y = k/x
15 = k/7
105 = k
So, the equation is y = 105/x
Find x when y = 21 by plugging in 21 as y:
y = 105/x
21 = 105/x
21x = 105
x = 5
So, when y = 21, x = 5