Answer:
x=5 and y=22
Step-by-step explanation:
2x+3=13
2x+3+−3=13+−3(Add -3 to both sides)
2x=10
[tex]\frac{2x}{2}[/tex] = [tex]\frac{10}{2}[/tex] (Divide both sides by 2)
x = 5
Substitute5forxin4x−y=−2:
4x−y=−2
(4)(5)−y=−2
−y+20=−2(Simplify both sides of the equation)
−y+20+−20=−2+−20(Add -20 to both sides)
−y=−22
[tex]\frac{-y}{-1}[/tex] = [tex]\frac{-22}{-1}[/tex] (Divide both sides by -1)
y=22
Hope this helped!!The volume of right circular cylinder A is 22 cubic
centimeters. What is the volume, in cubic
centimeters, of a right circular cylinder with twice the
radius and half the height of cylinder A?
A) 11
B) 22
C) 44
D) 66
Answer:
44
Step-by-step explanation:
we know that
[volume of right circular cylinder]=pi*r²*h
Vo=pi*r²*h--------------> original volume
Vo= 22 cm³
if twice the radius and half the height
r1=2*r
h1=h/2
then
V1=pi*ri²*h1
substituting
V1=pi*(2*r)² *(h/2)----------->V1= pi*4*r² *h/2-----------> V1=2*pi*r² *h
V1=2*[pi*r² *h]------------> V1=2Vo
V1=2*22=44 cm³
ANSWER THIS THX 60 POINTS
Answer:
B. -7 + 8n
Step-by-step explanation:
-3.5(2 + -3n) + -2.5n = 0
(2 * -3.5 + -3n * -3.5) + -2.5n = 0
(-7 + 10.5n) + -2.5n = 0
0.5n + -2.5n = 8n
-7 + 8n
Answer:
B & E
Step-by-step explanation:
Evaluate the expression.
[tex]-3.5(2 + -3n) + -2.5n\\(2 * -3.5 + -3n * -3.5) + -2.5n \\(-7 + 10.5n) + -2.5n \\-7 + 8n[/tex]
Help me please!!!!!!!
Answer:
- sign between 9 and 64 under root, it should be + sign
Step-by-step explanation:
(-4)*(-8)(2)= 64
It should read x= √9+64 but not √9-54 which lead to incorrect solution
The answer is B
.......................
Answer:
Brainliest
Step-by-step explanation:
The one you chose is correct
Determine the volume of a sphere with a diameter of 5 inches.Use 3.14 for Pi, and round your answer to the nearest inch. a. 65 cu. in c. 60 cu. in b. 75 cu. in d. 11 cu. in Please select the best answer from the choices provided
Answer:
a
Step-by-step explanation:
r = 2.5 in
V = 4(3.14)[tex](2.5 in)^{3}[/tex]/3 = [tex]65 in^{3}[/tex]
The circumference of a circle varies directly as its diameter. When the diameter of a circle is 6 inches the circumference is 18.84 inches then the diameter of a circle with circumference of 6.28 is?
Answer:
The diameter is 2
Step-by-step explanation:
We can use a ratio to solve
6 x
------- = --------------
18.84 6.28
Using cross products
6 * 6.28 = 18.84x
Divide each side by 18.84
37.68/18.84 = x
2 =x
I will mark you brainliest!!!! Determine which region contains the solution to the system.
Answer:
Region B
Step-by-step explanation:
The solution to the system is the point at which the two lines intersect, which would be in Region B.
A model rocket is launched from ground level. Its height, h meters above the ground, is a function of time t seconds after launch and is given by the equation h=-4.9t^2+68.6t What would be the
maximum height, to the nearest meter, attained by the model?
Answer:
240 m to nearest meter.
Step-by-step explanation:
h = -4.9t^2 + 68.6t
We need to convert this to vertex form to find the maximum value of h:
h = -4.9(t^2 - 14t)
h = -4.9[(t - 7)^2 - 49]
h = -4.9(t - 7)^2 + 240.1
So maximum height is when t = 7 and it's 240.1 meters.
A fair dice is rolled 3 times in a row. The outcomes are shown below. Calculate the probability of all three events occurring. Roll Outcome 1st 5 2nd factor of 6 3rd more than 1
Answer:
5/54
Step-by-step explanation:
probability of the dice being 5 = 1/6
probability of the dice being a factor of 6 = 4/6
probability of the dice being more than 1 = 5/6
1/6 * 4/6 = 4/36
4/36 * 5/6 = 20/216
20/216 simplified to lowest is equal to 5/54
Describe the transformation from the parent function of f ( x ) = x 2 to g ( x ) = 6 x 2.(Need answer in less than 2 hours!)
Answer: (b) vertical stretch by a factor of 6
Step-by-step explanation:
Consider h(x) = A(x - h)² + k
A is the vertical stretch by a factor of Ah is the horizontal shift (positive = right, negative = left)k is the vertical shift (positive = up, negative = down)f(x) = x²
g(x) = 6x²
↓
vertical stretch by a factor of 6
Evaluate : -80 - (-15) =
Answer:
-65
Step-by-step explanation:
-80 - -15
Two minuses become plus
= -80+15
Subtract and keep the sign of the higher number
= -(80-15)
= -65
Answer:
I'm glad you asked!
Step-by-step explanation:
[tex]-80-(-15)[/tex]
= [tex]-80-(-15)[/tex]
= [tex]=-80+15[/tex]
[tex]=-65[/tex]
The answer is - [tex]65.[/tex]
pls Answer me
I will mark as BRAIN LIST.
Answer:
tan p = 5/12.
tan p = cot r.
Step-by-step explanation:
RQ = √(13^2 - 12^2)
= √25
= 5.
tan p = opposite side / adjacent side = 5/12.
cot r = adjacent side / opposite side = 5/12.
tan p = cot r.
9000000 in standard form
Multiply 17/18 by the reciprocal of -289/324.
Answer:
18/17
Step-by-step explanation:
the negative reciprocal of -289/324 is 324/289. When it is multiplied by 17/18 you get 18/17 as the answer.
Answer:
[tex] - 1 \frac{1}{17}[/tex]
Step-by-step explanation:
[tex]Reciprocal \: of \: - \frac{289}{324} = - \frac{324}{289} \\ \\ \frac{17}{18} \times (- \frac{324}{289} ) \\ \\ = \frac{17}{18} \times (- \frac{18 \times 18}{17 \times 17} ) \\ \\ = - \frac{18}{17} \\ \\ = - 1 \frac{1}{17} \\ [/tex]
Which of these points lie on the line described by the equation below? y-5=6(x-7) A. (-5,-7) B. (7,5) C. (-7,-5) D. (5,7)
Answer:
Step-by-step explanation:
Answer: (7,5)
Step-by-step explanation:
Drag each equation to show if it could be a correct first step to solving the equation 3(6+x)=24 .
Answer:
First, you turn it into 18 + 3x = 24
Then do - 18 on both sides to get 3x = 6
so the answer is 2
Step-by-step explanation:
Answer:
I think it might be too late
Step-by-step explanation:
but here it is anyways
Triangle ABC is congruent to TriangleA'BC' by the HL theorem. Triangles A B C and A prime B C prime are connected at point B. Angles A prime C prime B and A C B are right angles. The lengths of C prime A prime and C A are congruent. The lengths of A prime B and B A are congruent. What single rigid transformation maps TriangleABC onto TriangleA'BC'? answer options: Triangle ABC is congruent to TriangleA'BC' by the HL theorem. Triangles A B C and A prime B C prime are connected at point B. Angles A prime C prime B and A C B are right angles. The lengths of C prime A prime and C A are congruent. The lengths of A prime B and B A are congruent. What single rigid transformation maps TriangleABC onto TriangleA'BC'? dilation reflection rotation translation
Answer:
B, reflection will be your answer.
Step-by-step explanation:
Congruent triangles have equal measure of corresponding sides and angles.
The single transformation that maps triangle ABC and triangle A'B'C is (b) reflection
From the question, we understand that the triangles are congruent by HL.
HL means hypotenuse legs.
This implies that
The two triangles are right-angled triangleThe length of the hypotenuse of both triangles are equal.Reflecting either of the triangles would map both triangles.
Hence, the single transformation is reflection
Read more about transformation at:
https://brainly.com/question/15469392
Graph y=−4/7x+1. do this math
Answer:
Use demos or a graphing calc.
Step-by-step explanation:
Answer:
Graph the line using the slope and y-intercept, or two points.
Slope: −4/7
y-intercept: 1
Find the value of x.
Answer:
x=11 degrees
Step-by-step explanation:
45+4x+1=90
46+4x=90
4x=44
x=11
what is the solution to this inequality x/10+6≥8
Answer:
x ≥ 20
Step-by-step explanation:
First, we want to isolate x. We can start to do that by subtracting 6 to both sides.
x/10≥2
Now, we multiply each side by 10.
x ≥ 20
That's the answer, all values above or equal to 20 are solutions.
Answer:
The answer is x_> 20
Step-by-step explanation:
A charity organization is holding a food drive with a goal to collect at least 1,000 cans of food by the end of the month. It currently has 565 cans from donations and is having an event where 87 guests will attend and bring cans. Which solution set represents the number of cans each guest must bring to meet the goal?
A.)
B.)
C.)
D.)
The answer is 5 in a close dot going --->
Which is D.)
The picture is to show how it looks in Plato.
Answer: D.
Step-by-step explanation:
If they already have 565 cans and 87 will bring cans then we could represent it by the inequality
87x + 565[tex]\geq[/tex] 1000 where x is the number of cans each guest much bring to meet the goal. so solve for x.
87x + 565[tex]\geq[/tex] 1000
-565 -565
87x [tex]\geq[/tex] 435
x [tex]\geq[/tex] 5
since we now that x is 5 then A and C can't be answers.
B can't be an answer in this case because 5 is excluded but they actually need at least 1000 bottles so 5 needs to be excluded.
10. Julio is driving to the store. The average distance d, in miles, he travels over t minutes is given by the
function d(t) = 0.5t. What is the value of the function when t = 15?
Answer:
7.5 miles
Step-by-step explanation:
Given the equation d(t) = 0.5t, all you need to do is plug in the value of t.
They're asking what the Function equals, and they're giving you the value of the variable t.
To solve, write the equation d(15) = 0.5(15)
And if you simplify the right side of the equation, you'll find that
d(15) = 7.5
If t represents time, then you can conclude that Julio travels 7.5 miles in the time t, of 15 minutes.
Which statements are true about the parabola represented by the equation y=−3x^2+18x+23 Select all that apply. 1. The leading coefficient is positive, so the parabola opens up. 2. The leading coefficient is negative, so the parabola opens down. 3. The parabola has a maximum. 4. The parabola has a minimum.
Answer:
2, 3
Step-by-step explanation:
2. The leading coefficient is -3. When the leading coefficient is negative, the parabola opens down.
3. When the parabola opens down, it has a maximum point, but no minimum point. (when the parabola opens up, it has a minimum, but no maximum)
I hope this helps :)
The right statements about equation y=−3x^2+18x+23 is 2) The leading coefficient is negative and 3) The parabola has a maximum.
What is a parabola?A parabola is a plane curve which is mirror-symmetrical and can be downward, upward, leftward and rightward shaped.
What are the statements?Second is true because when the coefficient is negative the parabola opens down because their values starts decreasing.
Third is true because when the parabola opens down it has a maximum point and no minimum point. On the other hand when the coefficient is positive it opens up.
Learn more about parabola at https://brainly.com/question/4148030
#SPJ2
13, 15, 17, 19,... describe the pattern in the sequence. Find the next three terms
Answer:
21, 23, 25
Step-by-step explanation:
It adds by x +2 (x being the previous number.)
Answer:
pattern : +2
next three terms : 21, 23, and 25
Which symbol would make the statement TRUE?
4.589 4.958
A. <
B. >
C. =
D. none of the above
Answer:
A. <
Step-by-step explanation:
The symbol "<" means less than.
Comparing 4.589 with 4.958, 4.958 is greater than 4.589 by 0.369 (4.958 - 4.589).
So therefore, if we are to write 1 statement for both, we would say "4.589 is less than 4.958".
This can be written by using just symbols without words, thus, we have:
4.589 < 4.958.
The correct option is A. <
Three-fifths of the members of the Spanish club are girls. There are a total of 30 girls in the Spanish club.
Which statements can be used to solve for x, the total number of members in the Spanish club? Select three options
Problem: You do not have an attached picture. Though, I can help you out with this question.
So, three-fifths of the members are girls. There are 30 of girls. We can immediately make an equation using "x".
3/5x=30
3/5x × 5/3=30 × 5/3
x=50
Thus, there are 50 members in total. Though if x is too hard for you, you may substitute it by using another variable.
Variable in here is x.
First Identify the Angle relationship, then solve for x.
Answer:
x=2
Step-by-step explanation:
46x-2=45x
+2 +2
46x=45x+2
-45x -45x
x=2
Answer:
I hope you can see the pic
Step-by-step explanation:
(46x - 2) and 45x are opposite angles. Opposite angles are equal to each other so, like terms will he collected and then x is gotten as +2.
PLEASE HELP! Neil has been running a tutoring business since 2005. He charges a monthly fee for weekly tutoring sessions and a phone help line. Each year, he has increased his fee by the same amount. The table shows what Neil charged each customer for two given years of his business: Year Annual Tutoring Fee 2005 $1200 2008 $1350 A. What is the rate of change and initial value for Neil's business? How do you know? B. Write an equation in slope-intercept form to represent the fees that Neil charges each year.
The rate of change for Neil's business is:
$50The initial value of Neil's business is:
$1,200 in 2015We can come to this conclusion because:
There is an increase in the cost every year by $50With this in mind, we can perform the calculations by incrementing the value of the business by $50 every year, until 2008, from 2005.
The equation in slope-intercept form that represent the fees that Neil charges each year is:
y=50x+bRead more about slope intercept here:
https://brainly.com/question/1884491
///// PLZZZZZZZZZ HLPPPPPPPPPP MEEEEEEEEEEEEEEEEEE ////// WHAT IS THE SLOPE OF THE BELOW IF NECESSARY ENTER YOUR ANSWER AS A FRACTION IN LOWEST TERMS USING THE SLASH (/) AS THE FRACTION BAR DO NOT ENTER YOUR ANSWER AS A DECIMAL NUMBER OR AN EQUATION.
Answer:
1/6
Step-by-step explanation:
We have two points so we can use the slope formula
m = (y2-y1)/(x2-x1)
= (6-3)/(12 - -6)
= (6-3)/(12+6)
= 3/18
=1/6
What is 76.8/100 in grading. For instance is it an A,B,C,D,E etc.
Answer:
grading
A-1---80% AND ABOVE
A---70% AND ABOVE
SO 76.8/100=A
Step-by-step explanation:
I HOPE IT WILL HELP YOU
Answer:
A
Step-by-step explanation:
A+ = 100-90
A = 89-70