Answer:
-6 and 7
Step-by-step explanation:
x is one number and y is the other
(1)----------------- 8x+5y=-13
(2)------------------ x+y= 1
first, let multiply both sides of (x+y=-1) by 8
(3)----------------- 8x+8y=8
lets subtract (1) from (3)
(8x+8y)-(8x+5y)=8-(-13)=3y
8-(-13)=3y -> 21=3y
y=7
lets plug in 7 into (2) for x
x+7=1
x=-6
the numbers are -6 and 7
help me what is the answer
Answer:
A. rational
Step-by-step explanation:
ive learned this before
Answer:
Whole C)
Square root of 144 is 12
Hope this helps! Have a nice life!
If ab = 9 and a² + b² = 81, then (a+b)² = ?
Answer:
99
Step-by-step explanation:
Through some clever algebra, we can combine our first two equations using the fact that
[tex](a+b)^2=a^2+2ab+b^2[/tex]
We have the a² and the b² in the equation [tex]a^2+b^2=81[/tex], and we almost have a 2ab in the equation [tex]ab=9[/tex]. To get that 2ab, we can simply double both sides of the first equation to get [tex]2ab=18[/tex]. From there, we'll add the first two equations together, giving us the summed equation
[tex]a^2+b^2+2ab=81+18\\a^2+2ab+b^2=99[/tex]
And since [tex](a+b)^2=a^2+2ab+b^2[/tex], we can equivalently say that
[tex](a+b)^2=99[/tex]
find the lateral area of this cone
Answer:
lateral area = 180π in²
Step-by-step explanation:
The lateral area is the surface of the cone only.
perimeter of base = 12 x 2 = 24π in
Surface Area = 1/2 perimeter x slant height
SA = 1/2 x 24π x 15 = 180π in²
please help it’s due today!!!
Answer:
1=x and 2=y
Step-by-step explanation:
Unit 2 Mid-Unit Assessment
Answer:
users are not supposed to help you on test, quiz's or assessments. according to the T.O.S of brainly aka the honor code
Step-by-step explanation:
Janet is designing a garden in the shape of a trapezoid which is split into three parts: two triangular
flower beds and a rectangular section of grass. Setting up the flower beds costs $3.50 per square
foot. How much will Janet have to spend to set up the flower beds?
PLS HELP
Ans) 70
Tell me if you need steps
(Am 100% sure with this answer)
Given the graph of a quadratic function, use the intercepts and another point on the graph to write the equation of the function in standard form.
Answer:
-2x^2 +8
hope this helps ;)
In 2010, the price of a laser printer was $1599. In 2018, the price of the same type of printer had dropped to $579. Find the percent of decrease. Round to the nearest percent.
Answer:
nearest percentage=64%
Step-by-step explanation:
math
PLEASE HELP
Use the formula √(x2−x1)2+(y2−y1)2 to find the distance between the points(8,2) and (3,8) to the nearest tenth please
Answer:
Step-by-step explanation:
[tex]d=\sqrt{(3-8)^2+(8-2)^2} =\sqrt{25+36 }=\sqrt{61} \approx 7.81[/tex]
Please help me with this question
Answer:
4x+6y
Step-by-step explanation:
If STU is reflected over a horizontal line, what is the length of side S'U'?
What is the original angle? You didn't provide us with enough information. If the angle is reflected, it'll be the same number of units as the original shape.
Hope this helped.
Mike bought a bottle of gatorade for $1
and some granola bars for $2.50
each. How many granola bars did he
buy if he spent $11 total?
Answer:
4 granola bars
Step-by-step explanation:
x is the number of granola bars
1 + 2.5x = 11
2.5x = 10
x = 4
i don’t know the answer
Answer:
C
Step-by-step explanation:
In order to be able to find the circumference in relation to radius, you have to use the formula C = 2πr
Hope this helped :)
4z^2=144 thank you whoever helps
Answer:
z = ± 6
Step-by-step explanation:
Guven
4z² = 144 ( divide both sides by 4 )
z² = 36 ( take the square root of both sides )
z = ± [tex]\sqrt{36}[/tex] = ± 6
6 / 32
Simplify
a)
4p + 2p – 3p
b)
9s- 5s + 2s-S
c)
8t + 3r - 76 - 9r
Answer:
a.3p
b 5s
c 2r -76 this can be the answer
Answer: A) 3p , B) 5s , C) -6r+8t-76
Step-by-step explanation:
A ) 4p + 2p – 3p
combine like terms :-
(4p+2p+-3p)
(4p+2p+-3p) = 3p
= 3p
B ) 9s- 5s + 2s-S
combine like terms :-
( 9s-5s+2s+-s)
( 9s-5s+2s+-s) = 5s
C ) 8t + 3r - 76 - 9r
combine like terms :-
(3r+-9r)+(8t)+(-76)
= - 6r+8t+-76
The Quadratic Formula gives which roots for the equation 3x2 + 3x = 2?
Answer: x=x=-3+/- sqrt 33/6
Step-by-step explanation:
Amy bought a diamond ring for $6,000. If the value
of the ring increases at a constant rate of 5.8% per
year, how long will it take for the ring to be worth
$19,000?
Show work
Answer: $13,308
5.8% of 6000 is 348. 348 times 21 is $7,308. add 6,000 to 7,308 and you get $13,308
Step-by-step explanation: amy likes cheap rings LOL
Answer:
54 3/4 years
Step-by-step explanation:
5.8% of 6,000= 348
348x54 3/4=19,053
hope it helps!
Jasmine and 4 friends moved 23 pounds of dirt. Each friend moved the same amount of dirt. How much dirt did each friend move?
0.21x = 252.08 what is x?
Answer:
(x=1200.380952)?????
The process of eliminating a radical from the denominator of a radical expression is called
Answer:
rationalizing the denominator
Thank 0d0
Step-by-step explanation:
How does labeling the diagram help us show that we can use right triangle congruency (SAS in this case)?
Answer:
Step-by-step explanation:
S A S congruence rule: Two triangles are congruent if two sides and the included angle of one triangle are equal to the two sides and the included angle of other triangle.
If two triangles are congruent by SAS, and the angle is 90, then by CPCT{corresponding part of congruent triangle) the hypotenuse of the two triangles will be congruent.
Now, as hypotenuse and one leg are congruent in both triangles, we can apply RHS congruent
What is the slope of the line graphed below?
Each marble bag sold contains 4 green marbles for every 3 blue marbles if a bag has 21 blue marbles how many green marbles does it contain
What are the three different kinds of problems we can solve using the percent proportion?
Answer:
We have now seen solutions method for the three basic types of percent problems ;finding the amount, the rate, and the base
ANSWER PLSSS 65 POINTS
Answer:
[tex]\Huge\boxed{76}[/tex]
Step-by-step explanation:
Hello There!
The first thing we want to do is find the proportional relationship between to two triangles
The smaller triangles longest side is 18
Given the longest side of the similar triangle we can divide the longest side of the preimage by the longest side of the similar triangle
So the proportional relationship would be
36/18 or 2
Our next step is to find the the sides of the similar triangle
To do so we multiply the sides of the preimage by 2 (because 2 is the proportional relationship between the two triangles)
12x2=24
8x2=16
and we already know that the longest side measures 36
Now we can find the perimeter by adding all of the side lengths
36+24+16 = 76
So we can conclude that the perimeter of the dilated image is 76
The perimeter of the dilated triangle is 81.
If Samantha can make 6 bracelets in 1 hour and Payton makes 15 bracelets in 3 hours - what is the difference in the number of
bracelets they would make in 6 hours?
HELP ME PLEASE ?!?!?
Step-by-step explanation:
According to phythagorous theorem
c²= 8²+6²
= c²=64+36
= c²=100
= c= \/100
c = 10 mm
Answer:
[tex]6 {}^{2} + 8 { }^{2} = 36 + 64 = 100[/tex]
H=√100=10mm
Hope it helps
Have a good day
please help is on algebraric xpressiond
Step-by-step explanation:
10). 80-b
11). 25<n
12). The Expressions Is 5-d. a is unknown
James buys a shirt and a pair of socks on sale for 20% off. If the price of the shirt
before the sale was $26 and he spent a total of $26, what was the original price of
the socks? Round to the nearest hundredth, if necessary.
Answer:
The Price of socks is
=
$
8
Explanation:
Given -
Discount 25%
Price of shirt before discount
=
$
24
Amount spent on both shirt and socks after applying discount
=
$
24
Assume the price of socks
=
$
x
Then Shirt + Socks before discount =
$
(
24
+
x
)
After discount one has to pay 75% of the article.
Then -
75
100
(
24
+
x
)
=
24
0.75
(
24
+
x
)
=
24
18
+
0.75
x
=
24
0.75
x
=
24
−
18
=
6
x
=
6
0.75
=
8
The Price of socks is
=
$
8
How to verify your answer -
One way
Price of shirt =$24
Price of socks =$8
Total =$32
Discount =25%
Discount for $32 is
32
×
25
100
=
$
8
Amount one has to pay after discount
=
32
−
8
=
$
24
Another way is -
Discount 25%
It means after discount it is enough if he pays 75% of the price.
In our case - Actual price is
=
$
32
75% of $32 is
=
32
×
75
100
=
2
Step-by-step explanation:
Help me will mark brainliest!!!
Answer:
a ray can be defined as a part of a line that has a fixed starting point but no end point. It can extend infinitely in one direction. It can extend infinitely in one direction.
Answer:
A ray can intersect a circle in a line segmentBecause when a ray will pass through a circle,it will Pass through two points making it a line segment in the circle