Answer:
8
Step-by-step explanation:
so openeing the parenthesis we get
a2+2ab+b2=10
a2+2(1) +b2=10
a2+2+b2= 10
a2+b2=8
if my answer helps please mark as brainliest
I have this question on a homework and don't know how to do It
Area of a triangle = 1/2 x length x height.
80 = 1/2 x (x+1) (2x-2)
Multiply both sides by 2:
160 = (x+1)(2x-2)
Expand the right side:
160 = 2x^2 -2
Add 2 to both sides:
162 = 2x^2
Divide both sides by 2:
81 = x^2
Take the square root of both sides:
x = 9
Now find the length of the s1des:
(x+1) = 9+1 = 10
2x-2 = 2(9) -2 = 18-2 =16
The shorter side is 10
A line passes through the point (-2, 7) and has a slope of -5.
What is the value of a if the point (a, 2) is also on the line?
a. -7
b.-1
c.1
D.7
I NEED ANSWERS SOON
Answer:
[tex]\boxed{a = 3}[/tex]
Step-by-step explanation:
[tex] (using \: the \: points : (2, \: 7) = ( x_{1}, \: y_{1}\: \: ) \\ hence : (a, \: 2) = ( x_{2}, \: y_{2}\: \: ) \\ but \: m = \frac{ y_{2} -y_{1} }{x_{2} - x_{1}} = \frac{2 - 7}{a - 2} \\ - 5 = \frac{2 - 7}{a - 2} \\ - 5(a - 2) = 2 - 7 \\ - 5a + 10 = 2 - 7 \\ - 5a = - 5 - 10 \\ - 5a = - 15 \\ a = \frac{ - 15}{ - 5} \\ \boxed{a = 3}[/tex]
Calculate the mass of a sample of pure silver (density of 10.49 g/mL) that has a volume of 12.99 mL.
Answer:
please find attached pdf
Step-by-step explanation:
someone help me please
39 - 24 + 6m
Which of the following describes 6m in the expression above?
A. factor
B. product
C. coefficient
D. sum
Pleaaase help this is due today
Answer:
a = false
b= true
c= false
d= false
e= false
a typing question please help and make brainleist
Classify each number according to its value
5.2×10-4
Answer:
48
Step-by-step explanation:
first put 5.2 x 10 in parentheses . Which you do first then subtract 4 and you will get your answer.
To visit her grandmother, Melek takes a motorcycle 3.8, kilometers and a horse 3.32, point, 32 kilometers. In total, the journey takes 50.54 minutes
How many kilometers is Melek's journey in total?
Malik to visit her grandmother takes a motorcycle 3.8 kilometres at a horse 3.3 2.3 32 kilometres in total journey takes 50.5 4 minutes total kilometres which mlx journey is 7.725 kilometres
Answer:
The answer is 7.17 on khan
Step-by-step explanation:
Btw the first answer is wrong
What is 0.36¯¯¯¯ expressed as a fraction in simplest form
Answer:
I think this is probably late, but the answer is 4/11.
Step-by-step explanation:
0.36363636363 is the first repeating fraction and 36.36363636 is the second repeating fraction, because you multiply it by 100.
When 0.3636363636363 is multiplied by 100, the decimal moves from in front of the number 36 and moves behind it. So the answer is now 36.36363636
You're suppose to subtract those two minus each other, the denominator
the fraction is technically 36/99, but simplified version is 4/11. So the answer is indeed 4/11.
Thanks for your time!
Step-by-step explanation:
Answer:
:0.36 repeating can be expressed as 36/99
Step-by-step explanation:
0.36 is equal to 36100, but you can simplify it further by dividing 36 and 100 by 4 to get 925
HELP PLEASE!!!
See the image!
Answer:
Step-by-step explanation:
Remark
I don't think the net helps you that much. The yellow diagram shows where the dimensions are.
Givens
L = 5w = 5h = 12Formula
Surface Area = 2*L*w + 2*L*h + 2 * w * h
Solution
Surface Area = 2*5*5 + 2*5*12 + 2*5*12Surface Area = 50 + 120 + 120Surface Area = 290 in^2A photographer has enough liquid toner for sixty 4 in. by 8 in. prints. How many 11 in. by 14 in. prints will this amount cover?
(The toner covers the area of the print: Area=Length×Width)
The toner will cover ___ ( 13,11, 12, 48) prints of size 11 in. by 14 in.
Answer:
About 12 prints in 11×14
Step-by-step explanation:
The area of the 4×8 print is 32 in².
60 × 32= 1960
Divide by the area of an 11×14, 154 in²
1960/154 ≈ 12.47
There is enough for a little more than 12, but not enough for 13 prints.
-2/3-(-3/4)
Simplify if needed
Answer:
1/12
Step-by-step explanation:
Start by simplifying the fraction's signs:
[tex]-\frac{2}{3} - (- \frac{3}{4} ) = -\frac{2}{3} +\frac{3}{4}[/tex]
Now write both fractions as equivalent fraction with a common denominator of 12:
[tex]-\frac{2}{3} +\frac{3}{4} =-\frac{8}{12} +\frac{9}{12}=\frac{1}{12}[/tex]
If you need to add 5/6 to 5/12
again you need to write the fractions with a common denominator in this case also 12:
[tex]\frac{5}{6} +\frac{5}{12}= \frac{10}{12} +\frac{5}{12}=\frac{15}{12} = \frac{5}{4}[/tex]
in this last step we simplified a common factor of "3" in numerator and denominator to reduce the fraction to 5/4
write the equation that matches the green line
Answer:
Cant see the picture
Step-by-step explanation:
Cant see the picture
Gechina Galvez shopped at a department store during the end-of-summer sale All luggage was marked down 35 percent. She purchased a suitcase that regularly sells for $74.95, a garment bag that regularly sells for $8000, and a tote bag that regularly sells for $39.99. What is the total sale price?
Answer:
The total sale price that Gechina paid was $5,274.71.
Step-by-step explanation:
Given that Gechina Galvez shopped at a department store during the end-of-summer sale in which all luggage was marked down 35 percent, and she purchased a suitcase that regularly sells for $74.95, a garment bag that regularly sells for $8,000, and a tote bag that regularly sells for $39.99, in order to know the total sale price, the following calculation has to be made:
100 - 35 = 65
(8,000 + 74.95 + 39.99) x 0.65 = X
8,114.94 x 0.65 = X
5,274.71 = X
Therefore, the total sale price that Gechina paid was $5,274.71.
Four more than the quotient of a number and 7 equals 6.
Answer:
n/7 + 4 = 6
Step-by-step explanation:
Quotient of a number and 7: n/7
Four more than Quotient of a number and 7: n/7 + 4
Four more than Quotient of a number and 7: n/7 + 4 = 6
Given the vectors in component form:
r = ⟨8, 4⟩
s = ⟨–3, –4⟩
t = ⟨–5, 1⟩
Perform the operations.
5r – 3s + 8t
What is the magnitude and direction angle of the resultant vector?
A. 10.8, θ = 56.3°
B. 18.4, θ = 119.4°
C. 41.0, θ = 77.3°
D. 97.6, θ = 24.2°
Answer:
C
Step-by-step explanation:
Write each as a decimal. Round to the hundredths place.
13/50
What single decimal multiplier would you use to increase by 7% followed by a 9% increase?
Answer:
[tex]Digit = 1.1663[/tex]
Step-by-step explanation:
Given
Increase by 7% followed by a 9% increase
Required
Represent by a single decimal
Represent 7% increment by x and 9% increment by y.
Increment by 7% is:
[tex]x = 1 + 7\%[/tex]
Express as decimal
[tex]x = 1 + 0.07[/tex]
[tex]x = 1.07[/tex]
Increment by 9% is:
[tex]y = 1 + 9\%[/tex]
Express as decimal
[tex]y = 1 + 0.09[/tex]
[tex]y = 1.09[/tex]
The single digit is:
[tex]Digit = x * y[/tex]
[tex]Digit = 1.07*1.09[/tex]
[tex]Digit = 1.1663[/tex]
given < A ≅ < D, AB ≅ DE, and AC ≅ DF, prove that < C ≅ < F. show your work.
The ratio of boys to girls in Mr. Lee's Geography class is 3 to 5. If there are a total of 32 students in the class, how many of them are girls?
put these fractions in ascending order 1/2 3/5 and 3/4
Describe the relationship between base 4 and exponent 3
there are no choices I just need an answer
Answer:
To the power 3 means cube.
Whenever you cube an even number it is a multiple of 8.
Whenever an exponent is used on 4, the number is always a square.
The value of the give exponent is 64.
Given that, the base is 4 and exponent is 3.
What is the exponent?Exponent is defined as the method of expressing large numbers in terms of powers. That means, exponent refers to how many times a number multiplied by itself.
With the base 4 and exponent 3, we have
4³
= 4×4×4
= 64
Therefore, the value of the give exponent is 64.
To learn more about an exponents visit:
https://brainly.com/question/15993626.
#SPJ2
This is urgent pls help
If I tell you y = $0.10x + $25 represents your monthly phone bill, where x is the number of texts you send, but you can’t spend more than $75 per month, what values of x are you allowed to put into the equation?
What is the ratio of a:b, knowing that a-b/a+b = 3/5.
Answer:
4:1
Step-by-step explanation:
[tex]\frac{a-b}{a+b}[/tex] = [tex]\frac{3}{5}[/tex]
4-1 = 3
4+1 = 5
There are 10 girls and 6 boys in a class. The teacher randomly draws one student's name and then draws another. What is the probability that the first name drawn will be a boy and the second will be a girl? (Please show work so I can understand)
60%
23.4%
16%
25%
Answer:
25%
Step-by-step explanation:
Answer:
D 25%
Step-by-step explanation:
Mick paid $3.84 in sales tax on an item that cost $64.00 before tax. At that rate, how much would he pay in
sales tax for an item that costs $53.00 before tax? Explain STEP-BY-STEP
Tax rate = tax amount / item cost
Tax rate = 3.84 / 64.00
Tax rate = 0.06 (6%)
Tax amount = item cost x tax rate
Tax amount = 53.00 x 0.06 = $3.18
The price of an item yesterday was $140. Today, the price fell to $42. Find the percentage decrease.
Answer:
Step-by-step explanation:
140-42 = 98
amount of decrease = $98
$98/$140 = 0.7 = 70%
The price decreases by 70%
The baker's recipe for a loaf of bread calls for 12 ounces of flour. If he uses all of his flour to make loaves of bread, how many full loaves can he bake in two weeks?
Answer:
not enough info. how much flour does he have to begin with? how much does he use per day?
Step-by-step explanation:
A cylinder has a radius of 3 cm and a height of 5 cm
Answer:
1. 15
2. 45
3. 7.5
Step-by-step explanation:
5 times 3 is 15 so 15 times 3 is 45 half of 5 is 2.5 so 2.5 times 3 is 7.5
Answer:
The Volume is 141.37
The Volume is 424.12 when tripled
The volume is 70.69 when its halved
Step-by-step explanation:
In order to find the volume of a cylinder the formula is V=πr2h now you know the formul you need to plug in the numbers V = pi 3 squared 5
what is the approximate volume of the tube? round to the nearest whole cubic centimeter
Answer:
1,005 cm³
≈1,005 cm³ to the nearest whole cubic centimeter.