Solve the following system of equations graphically. Click on the graph until the correct solution of the system appears.
y = -3
x - y = 8
Putting y=-3 in second equation
[tex]\\ \sf\longmapsto x-(-3)=8[/tex]
[tex]\\ \sf\longmapsto x+3=8[/tex]
[tex]\\ \sf\longmapsto x=8-3[/tex]
[tex]\\ \sf\longmapsto x=5[/tex]
(x,y)=(5,-3)ABCD is a parallelogram.Find angle CBD.
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Answer:
81°
Step-by-step explanation:
Opposite angles of a parallelogram are congruent. The sum of the two angles at B is the same as the value marked at D.
∠CBD = 139° -58° = 81°
_____
Additional comment
The angles at A and C are both 41°, the supplement of the one marked 139°.
What is the equation of the blue line?
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Answer:
y = 2
Step-by-step explanation:
A horizontal line has the equation ...
y = constant
The constant can be found by counting grid squares or reading the label on the y-axis where the line crosses.
The equation of the blue line is y = 2.
2. What is the probability that the third strike comes on the seventh well drilled?
Answer:
about a 5% chance
Step-by-step explanation:
That is, there is about a 5% chance that the third strike comes on the seventh well drilled.
2. A scuba diver dove 48 feet in 4 minutes.
What integer represents his change in depth
for each minute?
A. 52 feet per minute
B. 44 feet per minute
C. -12 feet
per
minute
D. -48 feet per minute
Answer:
C. -12 feet per minute
Step-by-step explanation:
This question is really just asking for the slope of this situation. So the best way to find the answer is to find the change in y over the change in x. In this case, y is the depth and x is the time. So, it would be -48/4 because the diver went down 48 feet when 4 minutes passed. Then, simply divide, -48/4, which equals -12 feet/1 minute.
2 ( -2 ) -8
3 ( -3 ) -18
5 ( -1 ) …
Ayudaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :(
Answer:
2 ( -2 ) -8 = -12
3 ( -3 ) -18 = -27
Step-by-step explanation:
A truck and carry a load of 5000 pounds assuming that it can be cut to fit how many feet of steel beam in Winx 32.6 pounds can the truck carry
About 153 Winx. Because 5000 divided by 32.6 is 153.374233129.
The price of a watch was $115 when it was launched last year. When a new version of the watch was released this year, the price of the earlier version of the watch decreased by 15%. Find the price of the earlier version of the watch this year.
Answer:
$97.75
Step-by-step explanation:
115 times 0.85
Plot each rational number on the number line.remember that fractions are part of a whole so a fraction like 1/2 will go halfway between 0 and 1.Also remember that a number like 1 3/4 is read as “one and three-fourths”
Answer:
the ancwer is -2 -1 0 1 2
Step-by-step explanation:
Yes
Calculaţi c.m.m.d.c. și c.m.m.m.c. al numerelor: 18; 120; 30; 450.
anser is
Step-by-step explanation:
618 is the answer
find the exact value of
Answer:
value of what?
Step-by-step explanation:
I don't see the question
aolve the equation. 3/4x+3-2x = -1/4+1/2x+5
Use approximations to 1 significant figure , check that your answer to part A ) makes sense
Let y=r(x) be continuous and differentiable. Assume r'(x)=0 r′(x)=0 at x=ax=a.
If r'(x)<0 before x=a and r'(x)>0 after x=a
what must be true about r(a)?r(a)?
Choice 1: r(a) is a maximum value
Choice 2: r(a) is a minimum value
Choice 3: cannot determine based on this information
Answer:
am in callege i need points really much
Step-by-step explanation:
why is 25/25 larger than 25/38
Answer:
Cause 25/25 is a whole number and 25/38 is not
Step-by-step explanation:
A right triangle has side lengths 7, 24, and 25 as shown below.
Use these lengths to find tanA, sinA, and cosA.
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Answer:
tan(A) = 7/24sin(A) = 7/25cos(A) = 24/25Step-by-step explanation:
The mnemonic SOH CAH TOA can help you remember the trig ratios:
Sin = Opposite/Hypotenuse
Cos = Adjacent/Hypotenuse
Tan = Opposite/Adjacent
With respect to angle A, the sides are Adjacent = 24; Opposite = 7, Hypotenuse = 25. Then the desired trig ratios are ...
tan(A) = 7/24
sin(A) = 7/25
cos(A) = 24/25
Let 0 be an angle in quadrant 3 such that cos0=-5/13.
Find the exact values of csc0 and tan0
Answer:
see explanation
Step-by-step explanation:
Given
cosθ = - [tex]\frac{5}{13}[/tex]
This is a 5- 12- 13 right triangle
with adjacent = 5, opposite = 12 and hypotenuse = 13
In quadrant 3
sinθ < 0 and tanθ > 0 , then
sinθ = [tex]\frac{opposite}{hypotenuse}[/tex] = - [tex]\frac{12}{13}[/tex] and
cscθ = [tex]\frac{1}{sin0}[/tex] = [tex]\frac{1}{-\frac{12}{13} }[/tex] = - [tex]\frac{13}{12}[/tex]
then
tanθ = [tex]\frac{sin0}{cos0}[/tex] = [tex]\frac{-\frac{12}{13} }{-\frac{5}{13} }[/tex] = - [tex]\frac{12}{13}[/tex] × - [tex]\frac{13}{5}[/tex] = [tex]\frac{12}{5}[/tex]
what is 0.08 as a percent.
Answer:
8%
Step-by-step explanation:
u have to multiply the number with 100
0.08 * 100
8%
The population of a town increases every year by 2% of the population
beginning of that year. The number of years by which the total increase of
population be 40% is
Answer:
Step-by-step explanation:
A = Pe^rt
A = 1.4P
r = 0.02
t = ?
e^0.02t = 1.4
ln both sides
0.02t = ln(1.4)
t = ln(1.4)/0.02
t ~ 16.8 years
Brian went to the bank and withdrew $250 from his checking account.
The receipt that printed stated that Brian has $324 left in his account.
How much money did Brian have in his checking account before he
withdrew money? Create an equation to represent the situation. Make
sure to identify and label your variable. Solve for the variable and
describe your answer. Show your work and prove your solution to be
correct.
Answer: $574
Step-by-step explanation:
574 - 250 = 324
Determine if the ordered pairs represent a function.
{(1,5), (2,7), (3,9), (4,7)}
(yes or no)
Answer: No
Step-by-step explanation:
There's no noticeable pattern.
read bot stop answering my question no link no bot fast but wrong
Answer:
Step-by-step explanation:
First Sheet, First Question
1) D
2) D
3) B
4) D
First Sheet, Second Question
a) SQR 16
b) 7/8, sqr -42
c) 3.692, 4 pie, sqr 1/4
Which line shows the first error in the solution? Three more than a number divided by 4 is -12. What is the number?
Explanation:
On the third line is where the student went from -12-3 to -9. This is not correct. Instead, it should be -12-3 turning into -15.
Think of it like being 12 feet under water (the number -12) and then moving 3 more feet deeper under water. You'll move down 3 to get to -15 to represent being 15 feet under water. Use a vertical number line if needed.
You can also compute -12-3 like 12+3 = 15, then just make everything negative. So -12-3 = -15
In ANOP, NP is extended through point P to point Q, m_OPQ = (9x – 19)°,
mZPNO = (2x + 5), and mZNOP = (3x + 16º. Find mZNOP.
Answer:
The values of x and y are x = 6 and y = 9Step-by-step explanation:
MNOP is a parallelogram its diagonal MO and PN intersected at point A
In any parallelogram diagonals:
Bisect each other
Meet each other at their mid-point
In parallelogram MNOP
∵ MO and NP are its diagonal
∵ MO intersect NP at point A
- Point A is the mid-point pf them
∴ MO and NP bisect each other
∴ MA = AO
∴ PA = AN
∵ MA = x + 5
∵ AO = y + 2
- Equate them
∴ x + 5 = y + 2 ⇒ (1)
∵ PA = 3x
∵ AN = 2y
- Equate them
∴ 2y = 3x
- Divide both sides by 2
∴ y = 1.5x ⇒ (2)
Now we have a system of equations to solve it
Substitute y in equation (1) by equation (2)
∴ x + 5 = 1.5x + 2
- Subtract 1.5x from both sides
∴ - 0.5x + 5 = 2
- Subtract 5 from both sides
∴ - 0.5x = -3
- Divide both sides by - 0.5
∴ x = 6
- Substitute the value of x in equation (2) to find y
∵ y = 1.5(6)
∴ y = 9
The values of x and y are x = 6 and y = 9
What is the slope of the line that passes through the points (8, 4) and (20, –4)?
Write
your answer in simplest form.
Answer:
formula is y2-y1 ÷ x2-x1
- 4 - 4 = -8
20 - 8 = 12 simplify and we get
[tex] - \frac{ 2}{3} [/tex]
Answer: [tex]-\frac{2}{3}[/tex]
Step-by-step explanation:
-4-4=-8
20-8=12 [tex]\frac{-8}{12}[/tex]
find the inverse of -3y+5x=18
Answer:
-3x +5y = 18
Step-by-step explanation:
The inverse relation is found by swapping x and y.
What are the measures of Angles a, b, and c?
Show your work and explain your answers.
Answer:
∡a has a vertical angle sibling of 40°, and vertical angles are always congruent.
∡b is the 3rd angle in a triangle, the other two are 40° and 90°, recall all interior angles in a triangle add up to 180°.
∡c is a linear angle, namely an angle on the same flat-line as another, and linear angles always add up to 180°.
Step-by-step explanation:
help please. thank you very much
Answer: Offer B because it will cost less.
Step-by-step explanation: Hope this helps :)
Setting 7/3 equal to which ratio would result in a valid proportion? 9/49 18/42 42/18 49/9
Shade 0.25 of the design. Write a fraction in simplest fotm to represent the shaded part of the design
[tex]\\ \sf\longmapsto 0.25[/tex]
Remove decimal[tex]\\ \sf\longmapsto \dfrac{25}{100}[/tex]
[tex]\\ \sf\longmapsto \dfrac{5}{20}[/tex]
[tex]\\ \sf\longmapsto \dfrac{1}{4}[/tex]
Answer:
[tex] \frac{1}{4} [/tex]
Step-by-step explanation:
Hey there,
[tex]0.25 \\ \\ = \frac{25}{100} \\ \\ = \frac{25 \div 25}{100 \div 25} \\ \\ = \frac{1}{4} [/tex]
Hope this helps you.
Let me know if you have any other questions:-):-)
