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Helen
Questions (417)
Did Henrietta Batson sell fiction ??
1 answer
18 views
There was a terrible storm in your town during which many houses were destroyed.your family house was among those affected.write
3 answers
36 views
A spiral spring extends from a length of 10.00cm to 10.01cm when a force of 20N is applied on it .calculate the force constant
1 answer
47 views
A 10g mass placed on the pan of a spring balance causes an extension of 5cm.if a 15g mass is placed on the pan of the same
1 answer
30 views
The extension in a spring when 5g wt was hung from it was 0.56cm.if Hooke’s law is obeyed,what is the extension caused by a
1 answer
37 views
If a force of 50N stretches a wire from 20m to 20.01m,what is the amount of force required to stretch the same material from 20m
1 answer
38 views
A force of 18N extends a wire by 0.4cm.what force will extend the wire by 1.25cm,if the elastic limit is not exceed
1 answer
35 views
A spiral spring extends by 5m under a load of 60N when the load is replaced by a steel block,the new extension is 7cm,the weight
1 answer
50 views
What is obtained when water is driven out from a hydrate
1 answer
28 views
What is salt?give four examples
1 answer
30 views
Give different examples of salts that possess the water of crystallization
1 answer
30 views
Mention type of salts
1 answer
32 views
Mention five types of salts
1 answer
42 views
Mention types of salts
1 answer
38 views
List three deliquescent and hygroscopic substance each
1 answer
32 views
State the basicity of the following acids:HNO3,H2 SO4 and CH3 COOH
1 answer
39 views
In response to the public demand of its citizen, following the defeat at adwa government of italy was forced to
A B C D
2 answers
179 views
What is the total spin of the p-electrons of Floride
1 answer
89 views
The sum of 16th term of an Ap is 240 and the next 4 terms is 220. Find the first term, common difference.
4 answers
319 views
How can I find the 6th and 15th term of Ap
1 answer
114 views
Find N if N divided by ½= 13.5
1 answer
120 views
Mrs. Olu spent N2 on Tuesday N1 on Friday and NN on Saturday on Garri how many cups of gari did she buy on Tuesday and friday?
Wh
3 answers
187 views
A satellite is in a 91.5 min period circular orbit 350km above earth’s surface. Find the satellites speed
0 answers
291 views
Explain the role of the
Europea countries that participated in this trade.
1 answer
195 views
A 6.5-ounce can of tuna for $1.39 or a 3-ounce can of tuna for 0.65. The 3-ounce can of tuna costs _______ per ounce
2 answers
289 views
Suppose you are the manager of a watch-making firm operating in a competitive market. Your cost of production is given by C =
3 answers
536 views
Does the following line intersect the curve y = √x ? If yes, then at how many
points? y =10
1 answer
524 views
Take a factor out of the square root:
√27c^6, where c <0
1 answer
698 views
Write a formula that shows the dependence of:
the length of the side (a) of a cube on the surface area (S) of the cube
1 answer
1,017 views
The area of a circle can be calculated by the formula S=π ·r^2, where r is the
radius of the circle, or by the formula S=π
1 answer
870 views
How has globalization influenced american culture
0 answers
221 views
Write the equation of the parabola that has vertex (2.5, 2.75) and passes
through the point (1, 5).
1 answer
901 views
Find the least common multiple of
(2a −1)^2, 1−4a^2, and 8a^3 −12a^2 +6a −1
2 answers
836 views
Given: 2<a <5, 3<b <7.
Find: a −b and a/b
1 answer
148 views
For each of the following equations.
Find the coordinates of the vertex of the curve it describes. Find the x− intercepts. Find
2 answers
757 views
Three people share 40 crackers evenly how many crackers does each person gets
2 answers
515 views
simplify the expression with the restriction
5p/2q-p+10q/p-2q
1 answer
614 views
For the expression 4y/3x^2+2xy − 9x/3xy +2y^2
Find the domain.
1 answer
1,396 views
For the expression
b^2 −4by/2y^2 −by − 4y/b −2y Find the domain.
4 answers
678 views
If a brother and a sisters age is 4:3 and if the brother is 12 years old how old will the sister be?
1 answer
319 views
Write the expression 2a +b in the form of a fraction with the given
denominator. Check if the domain of the expression changed.
1 answer
505 views
Reduce the fraction with a condition
y^2-16/3y+12
2 answers
302 views
if an angle measuring 48° is translated 3 units right Downton units and reflected over the y-axis and rotated 180 degrees what
2 answers
310 views
Factor the following trinomials. (Hint: Solve the equations first.)
x ²−2x −2
1 answer
606 views
If you divide one of the roots of the equation 4x^2 +bx −27=0 by the other root, the quotient will be −3. Find b.
1 answer
936 views
For what natural values of n:
is the sum (−27.1+3n)+(7.1+5n) negative?
1 answer
1,726 views
If an angle measuring 30 degrees is translated 8 units left and 4 units up, what does the angle measure after the translation?
3 answers
459 views
If an angle measuring 72 degrees is translated 5 units right and 3 units down, what does the angle measure after the
2 answers
459 views
In isosceles △ABC with a base
AB , the perpendicular bisector to AC , intersects the other leg BC at point M. If m∠B=68°,
1 answer
868 views
There are two ways of scoring points in a ball game: a ‘major’ scores 5 points and a ‘minor’
scores 3 points. In a match
2 answers
2,425 views
A laboratory technician has made up a stock mixture of two chemicals, X and Y, ready for use
by all of the groups in Year 9 at a
1 answer
1,085 views
Which of the following expressions is positive for any value of a:
a^2+4, (a+8)^2, 5a^2+2, a+13, (a−4)^2+4, (a+1)^2−1
1 answer
256 views
There is an automatic photograph booth in my local shopping centre. It takes exactly 2 minutes
from the time that the money is
1 answer
1,792 views
The diagram below shows the method of construction of a book with four folded sheets in each
block, and three blocks in total.
1 answer
2,308 views
3. Someone who has betrayed his or her country might be convicted of...
A. a crime called treason. F. showing loyalty to the
2 answers
593 views
Given Quadrilateral DEFG with D(2, - 3), E(5, 1), F(1, 3), and G(- 6, 2) what are the new coordinates after a translation of (x
1 answer
628 views
Given Triangle RST with R(- 7, - 3), S(- 5, - 6), and T(- 1, - 4) what are the new coordinates after a translation right 3 and
2 answers
303 views
What is the image point of (0,8) after a translation right 3 units and down 5 units? Thank you!
3 answers
1,211 views
What is the image point of (0,8)(0,8) after a translation right 3 units and down 5 units?
3 answers
2,803 views
Write as a product:
25a^2−0.01b^10
1 answer
672 views
Multiply the following:
5>2 and 4>3
1 answer
294 views
What's a function that has a vertical asymptote at x= -8 and x= 3 and a hole at (5,1/26)?
1 answer
955 views
f(x)=(2x^2+5x-12)/(x^2-3x-28)
Is this function continuous at x=7? If not which condition does it fail?
1 answer
484 views
You are working on the layout of a
yearbook. The page is 9 inches wide, has 1 }2 inch margins, and has three columns of equal
0 answers
273 views
Using a number line, find both the intersection and the union of the following interval:
(− ∞ , 7) and [−5, +∞)
2 answers
851 views
For what values of y does the binomial 3y−5 belong to the interval (−1; 1)?
4 answers
1,233 views
Hematite,Fe2O3 is heated in furnace with carbon monoxide,CO qnd the products obtaines ,iron, Fe and Carbon dioxide ,CO2
1
1 answer
1,082 views
It is known that a<b. Instead of the symbol * insert the symbol < or >, so that the inequality will be true:
−2.7a*−12.7b
1 answer
285 views
It is known that 1.4< square root 2 <1.5. Find all possible values of the expression:
square root 2 +1
2 answers
640 views
In △ABC, m∠ACB=90°, m∠ACD=60°,
CD is the altitude to AB , and BD = 5 cm. Find AD. (A) 6cm (B) 15cm (C) 20cm (D) 25cm
2 answers
4,425 views
Please check my answer thanks.
True or False The purpose of HIPAA is to protect and enhance the privacy of the patient. My answer
1 answer
332 views
Please check my answer thanks.
If you provide home healthcare you are most likely to provide A. analyses of blood work B.
1 answer
319 views
How many miles of vapor are formed when 10 liters of butane gas, C4H10 is burned in oxygen at STP?
3 answers
604 views
Given: ABCD is a rectangle, AC∩BD= O, m∠ABD=30°, AC=16 in. Find BC
1 answer
876 views
Solve: please include statement and reason
Given: ΔАВС, m∠ACB = 90° CD ⊥ AB, m∠ACD = 30° AD = 6 cm. Find: BD
2 answers
558 views
Represent the following expressions as a power of the number a (a≠0):
(a^2a^4)÷a^−3/a÷(a^2a^3)^4
1 answer
734 views
If a is equal to the sum of band c, what is the difference of band c?
The difference of b and c is equal to ... in terms of b and
1 answer
572 views
Use the given D to find the range of each function:
f(x)=x−4, D={−2, −1, 3}
1 answer
415 views
Represent the following expressions as a power of the number a (a≠0):
((a^2)^−2)^5÷(a^4·a)^3
1 answer
1,062 views
In high-school 135 freshmen were interviewed.
Thirty five of them took PE, 42 took BIO, 60 took ENG, 10 took PE and BIO, 15 took
9 answers
2,726 views
How many 4-digit numbers are neither multiples of 2 nor multiples of 5?
2 answers
3,752 views
If set M consists of all integer numbers x such that 3<x<7, and set N consists of all integer numbers x such that 6≤x≤9,
2 answers
1,784 views
How many 4-digit multiples of 7 are there?
3 answers
4,547 views
For which value of n the following equalities are true: (2^2)^n = 16
1 answer
475 views
How many 2-digit numbers are multiples of 2 but not 4?
6 answers
2,458 views
Given: ΔABC, m∠1=m∠2, D∈
AC, BD = DC m∠BDC = 100º Find: m∠A m∠B, m∠C
2 answers
1,344 views
It takes a boat going upstream 3 hours to cover the same distance, as it would cover in 2 hours going downstream. What is the
5 answers
6,420 views
Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $3$ on them and the other two have a $9$ on them.
How
6 answers
4,037 views
A store sells packages of 48 Snickers bars for $28 per package, and packages of 36 KitKat bars for $22.50 per package. Mrs.
7 answers
3,274 views
Solve for x:
a(x−b)+bx+c=a, if a≠−b, if a ≠ − b
1 answer
1,271 views
Students perform an experiment using a circuit that contains the two parallel plate capacitors C1=10μF and C2=40μF. Come up
2 answers
2,698 views
Given that x and y are positive integers and (x·2)+x(2^2)+(y·2^3)+(y·2^4)=42, what is the value of xy?
2 answers
1,348 views
If r is an integer greater than 1, what is the value of (−1)^r +1 if:
1. r is an odd integer 2.r is an even integer
3 answers
1,855 views
If 2a+ 2/a =4, what is the value of 2a^2− 2/a^2 ?
2 answers
619 views
Without building the graph, find the coordinates of the points of intersection of the graph of the equation (x+2)(y+3)=0 with
1 answer
1,337 views
In what quadrant of the coordinate plane is the graph of the direct proportion located which is parallel to the graph, expressed
14 answers
3,595 views
Write the trinomial as a square of a binomial or as an expression opposite to a square of a binomial:
–44ax +121a^2+4x^2
1 answer
883 views
Prove that for any natural value of n the value of the expression:
(5n+1)2–(2n–1)2 is divisible by 7
2 answers
1,364 views
Write the trinomial as a square of a binomial or as an expression opposite to a square of a binomial:
−25a^2−1+10a
3 answers
1,678 views
Fill in the missing parts:
(5x + ___)^2 = ___ · x^2+70xy + ___
1 answer
2,118 views
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