Answer:
( 5, 0 )Step-by-step explanation:
x - 3y = 5
2x + y = 10 multiply by 3 to eliminate y and solve for x
x - 3y = 5
6x + 3y = 30 then add
7x = 35
simplify:
x = 35 / 7
x = 5
substitute x = 5 back into the eq.2
2x + y = 10
2(5) + y = 10
y = 10 - 10
y = 0
therefore the answer is ( 5, 0 )
If a2> 20, then which of the following could be a value of a?
6 b. 3 c. (-8) d. 2
I'll give brainliest
Answer:
Step-by-step explanation:
a
The square root of 20 = 4.47 so a for sure.
But the root of 20 is also -4.48 so that means that 2 and 3 are added to the list
Now what to do about - 8
(- 8)^2 = 64
The square root of 64 = +/- 8
It's kind of slippery but it depends on how you see the problem. It is a bit ambiguous.
I would eliminate - 8 but your instructor may not. Argue that it should not be included, but don't take the argument on forever. Let it go.
a for sure.
b and c I think so.
-8 is iffy.
Answer a
Answer:
a.6
Step-by-step explanation:
Match each complex numbers with its corresponding distance to the origin
Answer:
2. z = 1 - 2·i → √5
3. z = 4 + 3·i → 54
4. z = 6 - 8·i → 10
1. z = √5 - i → √6
Step-by-step explanation:
1. z = √5 - i
The distance from the origin = √((√5)² +1²) = √(5 + (-1)²) = √6
Therefore, z = √5 - i → √6
2) z = 1 - 2·i
The distance from the origin = √(1² + (-2)²) = √5
Therefore, z = 1 - 2·i → √5
3) z = 4 + 3·i
The distance from the origin = √(4²+3²)) = √(16 + 9) = √25 = 5
Therefore, z = 4 + 3·i → 5
4) z = 6 - 8·i
The distance from the origin = √(6²+8²)) = √(36 + 64) = √100= 10
Therefore, z = 6 - 8·i → 10
If OQ and RT are parallel lines and
M
Answer:
Late but its 115
2x+2a=4b solve for a
Answer:
a=2b-x
Step-by-step explanation:
Write the decimal as a fraction or a mixed number in simplest form.
1. -0.7
2. 0.125
3. -3.1
4. -10.25
Answer:
1. -7/10
2.1/8
3. - 3 1/10
4. -10 1/4
Step-by-step explanation:
Which of these points has the lowest absolute value?
A
-25
B
-13
c.
6
D
19
Answer:
A: -25
Step-by-step explanation:
negatives are below zero. And since 25 is above 13... -25 is below -13
What is the remainder in the synthetic division problem below? 14 6 - 1
Answer:8
Step-by-step explanation:
30% of 370 is equal to what number?
Answer:
Step-by-step explanation:
Percentage of 30% of 370 = ?
30% of 370 is equivalent to multiplying them: 30% × 370.
= 30/100 x 370
= 111
2 1/2 =1 2/3 ÷y
please help.... it would mean alot & its worth 100 points!
Answer:
y= [tex]\frac{2}{3}[/tex]
Step-by-step explanation:
change them to improper fractions
2 1/2= 5/2 1 2/3=5/3
divide y from 5/3:
[tex]\frac{5}{2} y=\frac{5}{3}[/tex]
mutiply each side by 2/5
y=10/15=2/3
here is your answer. change them to improper fractions
2 1/2= 5/2 1 2/3=5/3
divide y from 5/3:
mutiply each side by 2/5
y=10/15=2/3
Marcus collect donations and says care packages to troops overseas he has 36 bars of soap and 24 toothbrushes arrange the items so the packages are identical what is the greatest number of packages that Marcus can make using all the soap and toothbrushes?
Answer: I am sure is 12 package
$3.79 per pound for chicken wings OR $20.25 for a 5-pound bag
Answer:29.04
Step-by-step explanation:
3.79+20.25=24.04
24.04+5=29.04
Help please ASAP ASAP
Answer:
x= 44
Step-by-step explanation:
Add 82+54.
Subtract 136 from 180. Giving you your answer.
Always subtract from 180 since a triangle is always 180.
Can you mark me brainliest? And 5 star?
Answer:
x= 44
Step-by-step explanation:
180 = 82 + 54 + x
180 = 136 + x
180 - 136 = 136 -136 + x
44 = x
On a friend road trip, the driver travels 150 miles in 3 hours. At this rate, how
many miles will the driver travel in 30 minutes?
5555555555555555555555555555555
Determine if the two fraction are equivalent, 65/4, 13/2
Answer:
The fractions are not equivalent. If you cross multiply 65 x 2 = 130 and 4 x 13 = 52. 130 > 52. Set them as a proportion. [tex]\frac{65}{4} = \frac{13}{2}[/tex]
They are not equal.
For 65/4 you cannot divide it by 2 and then get 13/2. You would get 32.5/2.
32.5/2 is not equal to 13/2
hope this helps :)
Factor and solve each quadratic equation.
Show your work
x2 + 5x + 6 = 0
Answer:
x = -3, x = -2
Step-by-step explanation:
x² + 5x + 6 = 0
(x + 3)(x + 2) = 0
x + 3 = 0 x + 2 = 0
x = -3 x = -2
12=6-90
asap please xoxo!!!!!!
answer:
72
step-by-step explanation:
your question doesn't make mathematical sense how can 12 = 6 then subract 90?
maybe you meant 12 + 6 - 90
if so
the answer is
72
(my work)
12 + 6 = 18
18 - 90 = 72
hope this helped <3
What is the slope of the line that passes through (-3,5) & (4,-1)
Answer:
-6/7, the first one
Answer:
[tex]\boxed {m = -\frac{6}{7}}[/tex]
Step-by-step explanation:
Use the Slope Formula to help determine the slope of the two following points:
[tex]m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}[/tex]
(where [tex](x_{1}, y_{1})[/tex] represents the first point and [tex](x_{2}, y_{2})[/tex] represents the second point)
-Apply the two following points to the formula:
[tex](x_{1}, y_{1}) = (-3, 5)[/tex]
[tex](x_{2}, y_{2}) = (4, -1)[/tex]
[tex]m = \frac{-1 - 5}{4 + 3}[/tex]
-Solve for the slope:
[tex]m = \frac{-1 - 5}{4 + 3}[/tex]
[tex]m = \frac{-6}{7}[/tex]
[tex]\boxed {m = -\frac{6}{7}}[/tex]
Therefore, the slope is [tex]-\frac{6}{7}[/tex].
Can someone help me pls? *BRAINLIEST AND 15 POINTS*
Answer: D
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
d) x = 4/3
Step-by-step explanation:
Given equation,
→ -x + (3/7) = 2x - (25/7)
Now the value of x will be,
→ -x + (3/7) = 2x - (25/7)
→ -x - 2x = -(25/7) - (3/7)
→ -3x = -28/7
→ -3x = -4
→ x = -4/-3
→ [ x = 4/3 ]
Hence, the value of x is 4/3.
Please help greatly appreciated :)
Step-by-step explanation:
we know ,
area of circle =πr^2
hence we get from the figure that the diameter of circle is 19 cm and we can find radius
r=d/2
r=18/2=9cm
area of semicircle =πr^2/2
area of Semi circle equals to =22*(9)^2/7/2
=127.2857143
Answer:
Today: Sunday, 11 October 2020
Hour: 23.05 WIB (Indonesian)
_________________________
D = 18
r = 18 ÷ 2 = 9
area of semicircle = πr²/2
area of semicircle = 3.142 . 9²/2
area of semicircle = 3.142 . 81/2
area of semicircle = 254.502/2
area of semicircle = 127.251 cm²
Determine the domain and range of the given function.
The domain is
The range is
I really need help please
Answer:
[tex]-5*2[/tex] is larger.
Step-by-step explanation:
[tex]-5*2=-10[/tex]
[tex]-14+1=-13[/tex]
[tex]-10>-13[/tex]
-10 is greater because both numbers are negative, so -10 is the higher number.
Answer:
5 x 2 is the larger than -14 + 1.
Step-by-step explanation: -5 x 2 = -10, and -14 + 1 = -13. Plz tell me if you got it right.
clarify each function as a linear function, a linear absolute value function, a quadratic function, or an exponential function
Answer:
number 2 is linear number 4 is quadratic number 5 is constant
help! this is urgent!
Answer:
A
Step-by-step explanation:
because if you put A into a calculator it equals 81.
hope this helps
Answer:
81 is the perfect square of the first option
Step-by-step explanation:
It is asking for the perfect square so the third option will be eliminated because that is cubed.
The fourth option will also be eliminated because it is multiplication.
The second option will be eliminated because it has addition.
81 is the perfect square of the first option
Hope this helps!
Which of the following is a list of all the factors of 24? A. 1, 2, 3, 4, 5, 6, 8, 12, 24 B. 1, 2, 3, 4, 6, 8, 12, 24 C. 2 × 2 × 2 × 3 D. 2, 3, 4, 8, 16, 24
Answer:
Step-by-step explanation:
Use the problem 34.65 ÷ 10³
Donna receives a $100 gift card to MovieStop. Her Blu-ray player is able to play both Blu-rays and DVDS, so she would like to get a combination of both. Each Blu-ray cost $25.99 and DVDs cost $15.99 each. Write an equation modeling the number of Blu-rays, b, and DVDs, d, that Donna can purchase with her gift card.
Answer:
100=25.99b+15.99dStep-by-step explanation:
step one:
let the number of Blu-rays be b and
DVDS be d,
step two:
given that Blu-rays cost $25.99each and
DVDS cost $15.99 each,
we can model the cost of the Blu-rays and DVDS, as
100=25.99b+15.99d
hence the expression for the number of Blu-rays and DVDS, is given as
100=25.99b+15.99d
First to answer correctly gets brainliest! (Asap please)
Answer:
Maybe 6000ft but im not completely positive
Step-by-step explanation:
What are the coordinate of the vertices of A’B’C after each movement
What are the coordinates on the coordinate plane?
Answer:
0.9 1.8 2.9
Step-by-step explanation:
Answer:
P is (2,1) M is (6,2) G is (5,5) L is (1,3) i think this is right anyway
Step-by-step explanation:
hope it helped!
p.s it would be cool it you would give me brainliest
Rachel created 215 pairs of earrings. Material for the earrings were $0.25 a pair. At a craft fair rachel sells all 215 pairs of earrings and ends up with $3272.30. After factoring out the cost of materials how much money did rachel make on 1 pair of earrings.
Answer: 14.97 per pair of earrings
Step-by-step explanation:
