Answer:
In order two straight lines in a coordinate plane intersect, they MUST have different slopes.
This condition is NECESSARY and SUFFICIENT.
Step-by-step explanation:
The key feature of the functions that are needed to determine if the lines intersect are;
The slope; rate of changeThe y-interceptSlope and y-interceptFrom straight line geometry, we can conclude that two parallel lines whose slope are equal can never intersect.
On this note, for the functions described in the question, the functions only intersect when the slopes are different.
Additionally, the functions may intersect in the event of having equal y-intercepts.
Read more on slope and y-intercept;
https://brainly.com/question/25722412
A bag with 8 marbles has 4 yellow marbles and 4 blue marbles. A marble is chosen from the bag at random. What is the probability that it is red?
Answer:
0%
Step-by-step explanation:
Since there are no red marbles in the bag, there is no chance that a red marble will be picked.
At noon, the temperature was 0° Fahrenheit. The temperature changed by −1.2°F every hour for 8 hours. What was the temperature in degrees Fahrenheit at the end of the 8-hour period?
Enter your answer in the box.
help me someone smart
Answer:
18: b. y= -x+6
19: c. y-3=2(x-3)
Step-by-step explanation:
i hope this helps :)
LEMON SQUASH
1 part concentrate
to 2 parts water
If you put 140ml of water in a glass, how much concentrate should be added?
Answer:
70ml
Step-by-step explanation:
concentrate is half of water ( 140/2=70)
3 parts of 70ml in total (210ml )
2 parts of water-----------70+70 of water= 140
1 part of concentrate 70 of concentrate
Find the value of angle A and angle B
hello
so these angles you can apply the "vertically opposite angles are equal" rule
angle "A" is vertically opposite to 138º so therefore angle "A" is 138º
angle "B" is verticall opposite to 42º so therefore angle "B" is 42º
hope this helped and have good day :)
help please ! thank u sm
Given:
The figure of triangle LNM.
To find:
The Law of Sines for the given triangle.
Solution:
Law of sines: In triangle ABC,
[tex]\dfrac{\sin A^\circ}{a}=\dfrac{\sin B^\circ}{b}=\dfrac{\sin C^\circ}{c}[/tex]
Similarly, the Law of Sines for the given triangle LNM is:
[tex]\dfrac{\sin L^\circ}{l}=\dfrac{\sin N^\circ}{n}=\dfrac{\sin M^\circ}{m}[/tex]
Therefore, the correct option is b.
answer the question pls!!!
Answer:
yes
Step-by-step explanation:
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
What value of x makes the equation true?
Answer:
B.2.5
Step-by-step explanation:
The equation would be
[tex]-4x +8 = 2x -7[/tex]
I believe that you would know how to solve this.
You could also sub in 2.5 for the x to check.
Good Luck!!!!!
find the domain and the range
Answer:
D: all real numbers, R: y ≤ -4
Step-by-step explanation:
R: y ≤ -4
Because the line doesn't go beyond -4.
Mrs. Hales then tells Kyle to write an equation showing that the volume, V, of each of his prisms is equal to l × w × h
Kindly check the complete version of the question on the picture attached below :
Answer:
B.) 4 * 3 * 3
Step-by-step explanation:
Unit volume of cube = 48 unit³
Using the volume relation :
Volume = Length * width * height
V = l * w * h
To obtain the odd representation, we calculate the volume of the dimensions given in the option and select the option which does not yield a volume of 48 unit³
A.) 8 * 2 * 3 = 48 unit³
B.) 4 * 3 * 3 = 36 unit³
C.) 6 * 2 * 4 = 48 unit³
D.) 3 * 2 * 8 = 48 unit³
Hence, prism with dimension 4 * 3 * 3 cannot be one of Kyle's prism
In circle O, m∠R = 30.8°. Find m∠NOQ.
Given:
In circle O, m∠R = 30.8°.
To find:
The m∠NOQ
Solution:
Central angle theorem: According to this theorem, the central angle is always twice of subtended angle on the same arc.
Angle NOQ and angle NRQ are on the same arc but ∠NOQ is the central angle and ∠NRQ is the subtended angle on the arc NQ.
Using central angle theorem, we get
[tex]m\angle NOQ=2\times m\angle NRQ[/tex]
[tex]m\angle NOQ=2\times m\angle R[/tex]
[tex]m\angle NOQ=2\times 30.8^\circ[/tex]
[tex]m\angle NOQ=61.6^\circ[/tex]
Therefore, [tex]m\angle NOQ=61.6^\circ[/tex].
(Zoom in to see the problem) Please help. I gotta turn this in in 2 hours it’s 5:43 am right now and I can’t figure this out
Someone help please thanks.
Answer:
t=x+44
Step-by-step explanation:
the x ounces are being added to the vase's pre-existing 44 ounces so therefore the equation is t=x+44
Diego's family car holds 14 gallons of fuel. Each day the car uses 0.6 gallons of fuel. A warning light comes on when the remaining fuel is 1.5 gallons or less. Starting from a full tank, can Diego's family drive the car for 14 days without the warning light coming on? Explain your reasoning.
Answer:
20 days
Step-by-step explanation:
Subtract 1.5 gallons from 14 gallons to obtain the number of days the car will run without the warning light going on: 12.5 gallons.
Dividing this result by 0.6 gallons/day, we get
12.5 gal
------------------- = 20.82 days. Round this down to 20 days. (We're not
0.6 gal/day dealing in partial days.)
Answer:
2
Step-by-step explanation:
So there's arithmetic sequence a9 is 2 and s11 is 15.4,
Find a3
Answer:
a9=2
a11=15.4
a3=?
________
a3 = −38.2
Step-by-step explanation:
Hope this helps u . ♡
Help with this pleaseeee
Answer:
66 cm (Option B)
Step-by-step explanation:
The formula for the circumference of a circle is C = 2πr, so plug the values into the formula. The radius, (r) of a circle is one half of the diameter, so split 21 is half to get a radius of 10.5. Use 3.14 for π.
C = 2πr
C = 2(3.14)(10.5)
C = 6.28 × 10.5
C = 65.94
Rounded to the nearest unit, you get a answer of 66 cm.
Hope this helps! :)
3x+-2y=-6
5x-2y=7
how do i solve this Elimination pls
Answer:
[tex]x=\frac{13}{2}, y=\frac{51}{4}[/tex]
Step-by-step explanation:
[tex]We\ are\ given,\\3x-2y=-6\\5x-2y=7\\Considering\ this\ system\ of\ equations,\\Let\ 3x-2y=-6\ be\ E_1\\Let\ 5x-2y=7\ be\ E_2,\\Hence,\\Multiplying\ E2\ with\ -1, we\ get:\\3x-2y=-6\\-1(5x-2y)=7*-1\\Hence,\\3x-2y=-6\\-5x+2y=-7\\Now,\\Lets\ add\ E_1\ and\ E_2\ together\\Hence,\\(3x-2y)+(-5x+2y)=(-6)+(-7)\\Hence,\\3x-2y-5x+2y=-13\\Arranging\ And\ Adding\ Like\ terms,\ we\ have:\\3x-5x-2y+2y=-13\\Hence,\\-2x+0y=-13\\-2x=-13\\x=\frac{-13}{-2}=\frac{13}{2}[/tex]
[tex]Now,\ we\ can\ substitute\ x=\frac{13}{2}\ in\ E_1\ or\ E_2,\\But,\\Here,\ we'll\ substitute\ it\ in\ E1,\\Hence,\\Substituting\ x=\frac{13}{2}\ in\ E1,\ we\ have:\\3*\frac{13}{2}-2y=-6\\\frac{39}{2}-2y=-6\\-2y=-6- \frac{39}{2}\\-2y=\frac{-12-39}{2}\\-2y=\frac{-51}{2}\\y=\frac{-51}{2*-2}=\frac{51}{4}\\Hence,\\x=\frac{13}{2}, y=\frac{51}{4}[/tex]
****NOTE YOU WOULD GET 40 points if you answer ****
Answer:
25%
Step-by-step explanation:
Tamara earned an a on 5/8 of her spelling test of those spelling says she earned a perfect score on 1/5 of them find what fraction of cameras total spelling test did she on a perfect score show your work
Answer:
she had a perfect score in 1/8 of all tests
she had a perfect score in 4 tests
Step-by-step explanation:
Tamara earned an A in 5/8 of all the tests she took.
In 1/5 of the those tests she got an A, she had a perfect score.
1/5 of 5/8 is 1/5 * 5/8 which equals 5/40 which can be reduced to 1/8.
That means that in 1/8 of all tests she took she got a perfect score.
She took a total of 32 spelling tests.
1/8 of 32 = 1/8 * 32 = 32/8 = 4
Answer:
she had a perfect score in 1/8 of all tests
she had a perfect score in 4 tests
The Martinez family picked 3-4 lb of apples. Ana picked 1 of those apples.
How many pounds of apples did Ana pick
help i’m literally taking the test rn on here looking for the answer
Which image below is an acute triangle?
identify the type of sequence
i just need the graph ones
WILL MARK BRAINLYEST!
Answer:
your answers are correct
the first graph isgeometric
the second graph is arithmeit
if 4 is 1/4 what is the whole
Answer:
Step-by-step explanation:
23
Using the diagram shown below, which statement is true?
the measure of
the measure of
the measure of
the measure of
The statement which says that the measure of ∠ABD = ¹/₂ ∠ABC. So, the correct option is C.
Define angle bisector.An angle bisector is defined as a ray, segment, or line that bisects a given angle into two equal angles. The word bisection or half means dividing one object into two equal or identical parts. In geometry, we usually divide triangles and angles by lines or lines that are considered bisectors.
A geometric bisector is a ray, line, or segment that divides a given angle into two equal parts. For example, the bisector of a 60 degree angle divides it into two 30 degree angles. In other words, split the angle into two smaller congruent angles.
For the given case,
Ray BD bisects ∠ABC into two equal angles ∠ABD and ∠DBC; which can be written as ∠ABD = ¹/₂ ∠ABC.
To know more about angle bisector, visit:
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The complete question is as follows:
x + 2y = 1 and 2x + 5y = 3.
Can someone help me , with process to please ?
I will appreciate thank you so much!
Answer:
x = -1
y = 1
Step-by-step explanation:
x + 2y = 1 (Multiply this by -2)
2x + 5y = 3
-2x - 4y = -2
2x + 5y = 3
y = 1
x + 2y = 1
x + 2(1) = 1
x + 2 = 1
x = 1 - 2
x = -1
Answer:
x = -1
y = 1
Step By Step Explanation:
x + 2y = 1
2x + 5y = 3
let x become the subject. use one of the equation.
x = 1 - 2y
substitute into another equation
2(1 - 2y) + 5y = 3
expend the bracket
2 - 4y + 5y = 3
collect like terms
- 4y + 5y = 3 - 2
y = 1
substitute into one of the equation to find x
x + 2y = 1
x + 2 (1) = 1
x + 2 = 1
collect like terms
x = 1 - 2
x = - 1
The above diagram shows 4 island countries in the Marina Ocean. Each inch on the map represents a distance of 750 miles. The capital of each island country is marked with a star.
If a pilot takes off from the capital of Orange Island and flies to the capital of Red Island, how far has he flown?
A.
5,500 miles
B.
1,500 miles
C.
3,000 miles
D.
4,500 miles
Answer:
c because each island is 750 and if you x's 4 x750 it gives you 3,000 which is c
Answer:
C.
3,000 miles
Step-by-step explanation:
pls, tell me if wrong have a good night/day <3
Name two lines that are perpendicular
Answer:
AE and CE or AB and CD
Step-by-step explanation:
for explanation perpandicalar is to form a right angle =90 and its symbol is □
Answer:
A and C.
Step-by-step explanation:
Hi! Whenever you want to find lines that are perpendicular you have to search between them an 90 angle. Hope it helped!
what is 2x + 20 + 2x = 60
Answer:
= 1 0
Step-by-step explanation:
Solve
1. Combine like terms
2 + 2 0 + 2 = 6 0
4 + 2 0 = 6 0
2. Subtract 20 from both sides of the equation
4 + 2 0 = 6 0
4 + 2 0 − 2 0 = 6 0 − 2 0
3. Simplify
Subtract the numbers4 + 2 0 − 2 0 = 6 0 − 2 0
4 = 6 0 − 2 0
Subtract the numbers4 = 6 0 − 2 0
4 = 4 0
4. Divide both sides of the equation by the same term
4x = 40
4x/4 = 40/4
5. Simplify
Cancel terms that are in both the numerator and denominator4x/4 = 40/4
x = 40/4
Divide the numbersx = 40/4
x = 10
Please help me with this question, will mark brainliest if correct, PLEASE HURRY, no links or you'll be reported :)
Answer:
Given
ΔTQR is rightQS is altitudeΔRSQ and ΔTSQ also rightm∠TQS = 42°, RS = 26 cm∠RQS and ∠TQS are complementary with ∠TQS, so are 48°
a)
∠QRS is the another one with 42°b)
Find QS first
26/QS = tan 48°QS = 26 / tan 48° = 23.4Find QT next
QS/QT = cos 42°QT = QS / cos 42° = 23.4 / cos 42° = 31.5 (rounded)Please help me find the square root