Answer: 3) Not factorable
We cannot use the difference of squares method because we don't have a subtraction going on (ie "difference") and we don't have two perfect squares. The value 70 is not a perfect square.
We cannot factor out a GCF since the GCF here is 1, and that doesn't really affect things. Choice 4 is also not applicable because we don't have a trinomial. A trinomial has three terms.
Broccoli cost $3.14 a pound at the market.
If Mary bought 2.5 pounds, what was the cost?
A
$1.26
B
$5.64
$7.90
$7.85
7.85
explanation
you multiply the two numbers together
Answer:
$7.85
Step-by-step explanation:
To solve this problem, we can use the cancelling of units.
cost = $3.14/1 lb * 2.5 lb
The pounds cancel out leaving dollars so you get cost = $3.14 * 2.5
so cost = $7.85.
To solve 8,502 ÷ 7, in what place value should you start dividing?
Which of these situations is represented by 24 divided by 6
Answer:
B. got the perfect situation
Step-by-step explanation:
here
24flowers are distributed in 6 vase equally
that mean
[tex] \frac{24}{6} [/tex]
this may help you (:
Quinn has solved 20 problems on the math quiz. If this is 80% of the problems on the quiz, how many more problems does he have left to solve
Answer:
5 problems
Step-by-step explanation:
20=%80
10=%40
5=%20
100-80=20
20+5=25
5 problems left
Write 7√5 using rational exponents.
Answer:
7*(5)^0,5
Step-by-step explanation:
The value of number 7√5 in form of rational exponents will be 1561/1000.
What is Rational number?A number which can be written in the form of fraction p / q , where q is non zero, are called Rational numbers.
Given that;
The number is,
⇒ 7√5
Now,
Since, The number is,
⇒ 7√5
Solve as;
⇒ 7√5 = 7 × 2.23
= 15.61
= 1561/100
Thus, The value in rational exponents = 1561/1000
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help me please and thank you
Answer:
the answer is 7
Step-by-step explanation:
what expression is equivalent to −24x+72?
Answer:
answer:70+2=72 lixtoo
-3.75q -5q = 26.25 please give me a correct answer!
Answer:
q= -3
Step-by-step explanation:
I NEED HELP PLZ I just have a little trouble on it
Answer: In fraction form it will be 1/160
Step-by-step explanation: Hope this helps :)
what is the a ? a-(-14)= -18
Answer:
a=-32 if you think that was a good answer pls mark as brainliest
Step-by-step explanation:
a-(-14) is the same as a+14
a+14=-18
a=-32
Mark borrowed $125 from his dad to pay some bills. If he has already paid back $30, how much does he still owe?
*inequalities*
Answer:
Mark borrowed> (Subtracting) 125 dollars, so he will have negative 125 because he took it away. He gives back> (Addition) 30 dollars.
-125+30= -95. So, he owes 95 dollars.
(Easy way)
125-30= 95 dollars.I hope this helped :))
3.) Explain why we always get an integer when multiplying a radical expression by its conjugate? Provide your own appropriate example with supporting work that matches your explanation.
By answering the above question, we may state that by equation Once more, we can observe that the two conjugates' product is an integer.
What is equation?Using the equals notation (=) to indicate equivalence, a math equation links two statements. Algebraic equations prove the equality of three mathematical expressions by a mathematical assertion.
The equal sign, for example, provides a gap between the numbers 3x + 5 and 14 in the equation 3x + 5 = 14. You can use a mathematical formula to understand the connection between the two phrases that are inscribed on opposite sides of a letter. Most of the time, the symbol and the particular software match. e.g., 2x - 4 = 2 is an example.
An integer is always obtained when a radical expression is multiplied by its conjugate since the product has the form[tex]a^2 -b^2[/tex], where a and b are rational numbers. This is so that we may obtain the difference of the squares of the two terms within the radical when we multiply the two conjugates.
Consider the radical expression [tex]\sqrt3 - \sqrt2[/tex] and its conjugate, [tex]\sqrt3 - \sqrt2[/tex] , to understand this. These two expressions can be multiplied as follows:
[tex]\sqrt{\sqrt3 - \sqrt2\\[/tex]
[tex]\sqrt{(\sqrt3 - \sqrt2) ((\sqrt(3 + \sqrt(2)))} = 3 - \sqrt(2 ) = 1$$[/tex]
As a result, we can observe that the two conjugates' product is an integer.
The radical phrase [tex]\sqrt5 - \sqrt3[/tex] and its conjugate, [tex]\sqrt5 +\sqrt3[/tex] , serve as another illustration.
[tex](\sqrt5 -\sqrt3)[/tex]
[tex](\sqrt(5) + \sqrt(3)) = \sqrt(5) \times \sqrt(5) + \sqrt(5) \times \sqrt(3) - \sqrt(3) \times \sqrt(3)[/tex]
[tex](\sqrt5 - \sqrt3)( \sqrt 5+ \sqrt3) = 5 - 3 = 2[/tex]
Once more, we can observe that the two conjugates' product is an integer.
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An economy package of cups has 460 green cups. If the green cups are 20% of the total package, how many cups are in the package?
what is the solution of the system of equations below?
Answer:
the answer is B (2,1)
Step-by-step explanation:
Given the simultaneous equation
[tex]2x+3y=7 .....1\\x+y=3 ..........2\\[/tex]
Using substitution method
from equation 2 :
[tex]x=3-y ....3[/tex]
Substitute equation 3 into 1:
[tex]2(3-y)+3y=7[/tex]
Open the bracket
[tex]2(3)-2y+3y=7\\6-2y+3y=7\\6+y=7\\y=7-6\\y=1[/tex]
Substitute y=1 into x=3-y
[tex]x=3-1\\x=2[/tex]
Hence the solution to the equation is (2,1)
PLEASE MARK ME AS BRAINLIEST
what is 17 and a half as a whole number
Answer:
Brainiest
Step-by-step explanation:
17 1/2
Ricky has sat his summer exams.
His scores are below.
Change his scores into percentages.
Give each answer to 1 decimal place.
Maths: 17 out of 22
English: 19 out of 30
Science: 51 out of 60
French: 11 out of 12
German: 10 out of 14
Music: 19 out of 42
Geography: 19 out of 28
History: 30 out of 38
Welsh: 65 out of 70
List Ricky's top 3 subjects
Answer:
cuz i am batman hahahhaahhahah
Step-by-step explanation:
jknkkbjnnjnnbjnbknnHelp me pleasee. Solve the system by substitution
Answer:
(3, - 2 )
Step-by-step explanation:
Given the 2 equations
4x - 2y = 16 → (1)
y = - 5x + 13 → (2)
Substitute y = - 5x + 13 into (1)
4x - 2(- 5x + 13) = 16 ← distribute and simplify left side
4x + 10x - 26 = 16
14x - 26 = 16 ( add 26 to both sides )
14x = 42 ( divide both sides by 14 )
x = 3
Substitute x = 3 into (2) for corresponding value of y
y = - 5(3) + 13 = - 15 + 13 = - 2
solution is (3, - 2 )
2f - 4e + 4e = 2f true or false
Answer:
True.Step-by-step explanation:
Since 4e cancels out itself, the answer remains 2f.
*Note: I am not entirely sure this is correct, sorry if it isn't *
What does C equal? C/11 = 30/120
Answer:
C=2.75
Step-by-step explanation:
C/11=30/120
30/120=.25
120*.25=30
11*.25=2.75
Can someone please help me with this and make sure it’s correct
Help pls-
Bram invested $10,000 in an account that earns simple 5% interest annually.
Question 1: How much interest does the account earn in the first 10 years? (Round to the nearest dollar)
Question 2: How much more would the account earn in interest in the first 10 years if the interest compounded continuously? (Round to the nearest dollar)
Answer:
Answer 1: $6,289
Answer 2: $198
Step-by-step explanation:
1-
a(10)=10,000(1+.05)^10
=16,288.95 =16,288-10,000=$6,289
2-
A(t)=pe^rt=a(10)=10,000e^(.05)(10)=16,487-10,000=6487
6487-6289=$198
9. Angeline bought s yards of satin fabric priced at $8.09 per yard
and c yards of cotton fabric priced at $3.79 per yard.
a) What expression could you use to determine the total cost of
the fabric?
Answer:
The expression Y = 8.09s + 3.79c can be used to determine the total cost of the fabric.
Step-by-step explanation:
Given that:
Price per yard of satin fabric = $8.09
Yards of satin fabric bought = s
Price per yard of cotton fabric = $3.79
Yards of cotton fabric bought = c
Let,
Y be the total cost.
Y = 8.09s + 3.79c
Hence,
The expression Y = 8.09s + 3.79c can be used to determine the total cost of the fabric.
PLEASE HELP FAST...WILL MARK AS BRAINLIEST IF GIVEN GOOD ANSWER
3. What is the length of segment AB? Show or explain how you know.
Answers
I got answer 16.9
Step-by-step explanation:
1. Let's first look at triangle XYC. We know angle Y is 90 degrees because it has the symbol. and it is given that Angle X 45 degrees. Using the triangle interior angle theoreom, a triangle has 180 degrees so Angle C is 45 degrees. Know let find the sides, First we can deduce XY is 5 cm because of the triangle midsegment theorem XY is half of BC so since we know BC is 10 that means XY is 5. Then applying 45-45-90 triangle rules, XY=5, YC=5 and XC=[tex]5\sqrt{2}[/tex].
2.Now let look at the triangle XBC. Let find one missing angles. In the triangle . A angle bisector XC bisects XY and BC . Using that information Angle C of XYC = Angle C of XBC. So angle C=45 degrees. Knowing looking at the main triangle ABC Angle A=30, Angle C= 45+45=90 and Angle B=60 by interior triangle theorem. So going back to Angle X so angle x is 75 degrees due to interior triangle theorm. Also since Y=90 degrees it forms a linear pair to triangle AXY so Y=90 for AXY
Now let apply 30-60-90 triangle rules to AXY. XY =5, AY=[tex]5\sqrt{3}[/tex] and AX=10.
Finally. Apply 30-60-90 triangle rules to ABC. AC=[tex]5\sqrt{3}[/tex] +5 BC=10 and AB should turrn out to be 16.9.
This may not be right,but good luck:)
Which expression represents “7 more than x”?
7x
7 + x
x – 7
x ÷ 7
Answer:
7+x this is the answer ok
Please help me please please !
Can you guys graph y= 2/3x -4 ?
Hope this graph helps!
the volume of a cylinder is 72 pi cm^3. if the radius is 3cm, what is it the height of the cylinder?
The height of the cylinder is 8cm
The formula for calculating the volume of the cylinder is expressed as;
[tex]V = \pi r^2 h[/tex]
r is the radius
h is the height
Substitute the given parameters into the formula:
[tex]V = \pi r^2 h\\72 \pi = \pi \times 3^2h\\72 = 9h\\h=\frac{72}{9}\\h = 8cm[/tex]
Hence the height of the cylinder is 8cm
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Nancy divided her marbles into 7 equal piles. What
fraction of the total marbles would 2 piles be?
The distance of the moon to the Earth is 384,400 km.
The speed of light is 2.998 x 108 m/s.
Work out how long it will take light to travel from the moon to the Earth.
Include suitable units.
Answer: 1.3 seconds
Step-by-step explanation:
Given: Distance of the moon to the Earth = 384,400 km = 384400 x 1000 meters = 384400000 meters. [1 km = 1000 m]
Speed of light =[tex]2.998 \times 10^8[/tex] m/s = 299800000 m/s
Formula: [tex]\text{Time}=\dfrac{\text{Distance}}{\text{Speed}}[/tex]
Let t be the time taken by the light to travel from the moon to the Earth.
[tex]t=\dfrac{384400000}{299800000}\approx1.3\text{ seconds}[/tex]
Hence, it will take approximately 1.3 seconds for the light to travel from the moon to the Earth.
{(-1, 1), (1, 1), (-2, 4), (2, 4)}
Is the relation a function and why?
Step-by-step explanation: