last one is the answer:D. X=12 and X=1
step by step:
d=b2-4ac=169-48=121
x1=(-b+√d)2a=(13+11)2=12
x2=(-b-√d)2a=(13-11)/2=1
X1=12 and X2=1
please give me brainlest❤️
20 POINTS!!!!
b-7/4 = 1/2
explain your thinking
Answer:
B=86
Step-by-step explanation:
So first step is add 74 to 12 because if you subtracted b with 74 and to reverse that you have to add and 74+12=86 and that is what b equals
what is the simplified form of the expression
[tex] \sqrt[3]{27} [/tex]
simplified form of the expression
[tex] \sqrt[3]{27} [/tex]
Answer:
[tex]\rightsquigarrow[/tex] [tex]\tt{\sqrt[3]{27} }[/tex] ⠀
[tex]\rightsquigarrow[/tex] [tex]\tt{\sqrt[3]{3×3×3} }[/tex] ⠀
[tex]\rightsquigarrow[/tex] [tex]\tt{3 }[/tex] ⠀
Graph the function.
f(x) = -5/4x +4
Answer:
1. Put a dot at y=4
2. Go DOWN 5 blocks, go RIGHT 4 blocks
3. Put a dot at this point
4. Connect your 1st dot to the second dot for your first line segment
5. Follow the pattern
sound travels about 340 m / s. The function d(t) = 340t gives the distance d(t), in meters that sound travels in t seconds. How far does sound travel in 63 s?
I need the answer quickly please! :)
Answer:
d(63)=21,420m
Step-by-step explanation:
d(t)=340t
D=Distance
T=Time
D(63)=21,420
George is in charge of
prepping a pinata for a
party. He puts 72 pieces of
candy in the pinata. If
each person gets 2/8 of the
candy, how many pieces of
candy will each person
receive?
The distance on a map is 4.5 cm. The scale of the map is 1 : 1000. What is the actual distance?. Single choice.
Answer:
Actual distance is 4500 cm (45 m).
Step-by-step explanation:
A scale is a representative fraction that can be used to either increase or decrease proportionally the dimension of a given object.
scale = [tex]\frac{distance on map}{actual distance}[/tex]
It is in the form of a ratio.
From the question, Distance on map = 4.5 cm,
scale = 1 : 1000
= [tex]\frac{1}{1000}[/tex]
scale = [tex]\frac{distance on map}{actual distance}[/tex]
Let the actual distance be represented by d.
So that,
[tex]\frac{1}{1000}[/tex] = [tex]\frac{4.5}{d}[/tex]
⇒ d = 4.5 x 1000
= 4500
d = 4500
The actual distance is 4500 cm (45 m).
Dana buys a cat pillow for 43.00 the sales tax is 7%?
Answer:
Step-by-step explanation:
43.00 = 100% = 1
7% = 0.07
So to work out the total price you need to times 43 by 1.07 = 46.01
There are 16 girls and 18 boys in a class. The teacher chooses a student's name at random to answer a question.
What is the probability that the teacher chooses a girl to answer the question?
A
1
34
O
B.
16
OO
Answer:
8/17Step-by-step explanation:
16 girls and 18 boys in a class
Total number of students:
16 + 18 = 34Probability of choosing a girl:
P(g) = number of girls / total numberP(g) = 16/34 = 8/17Multiply.
(5x + 4)^2
The multiplication of the given equation i.e. [tex](5x + 4)^2[/tex] should be considered as the [tex]25x^2 + 40x + 16[/tex].
Calculation of the equation:Since the given equation is [tex](5x + 4)^2[/tex]
We have to break this equation
So, it can be like
[tex](5x)^2 + 2 \times 5x \times 4 + 4^2[/tex]
[tex]25x^2 + 40x + 16[/tex]
Hence, we can conclude that The multiplication of the given equation i.e. [tex](5x + 4)^2[/tex] should be considered as the [tex]25x^2 + 40x + 16[/tex].
Learn more about an equation here: https://brainly.com/question/17069398
I need some help ? Does anyone know this:)I’m new too this thats why im asking loll
Answer:
6
Step-by-step explanation:
Answer: 9 in
Step-by-step explanation: area = (base x height)/ 2 You multiply base (6) times height (3), and then divide it by 2.
Helppppp me please ???
Answer:
176•74
Step-by-step explanation:
area of circle is πr^2
π=3•142
r=7•5
3•142×7•5×7•5
=176•737
176•74
You complete 40% of ur hw problems before dinner what fraction of the problems did u complete before dinner
The equation P = 21 + 2w can be used to find the perimeter of a rectangle. A 1 point rectangular shaped playground is enclosed by a fence that is 500 m. The length of the playground is 120 m. Use the equation to determine the width of the playground *
Answer:
130 mStep-by-step explanation:
Given:
P = 2l + 2wP = 500 mLength is:
l = 120 mSubstitute values and solve for w:
500 = 2*120 + 2w2w = 500 - 2402w = 260w = 260/2w = 130 m6. What is the slope of the line pictured?
Answer:
-1/3
Step-by-step explanation:
We can do this by counting the number of spaces away the points shown are. Starting from the leftmost point, you move down one, or -1, units, and right 3 units. Since slope is defined as rise over run, you can then say that the slope is:
-1/3
Hope this helps!
-2 and 4
what is the slope intercept form
Answer:
y=4x-2
Step-by-step explanation:
Mildreda bought 3 boxes of pencils. There were 4 pencils in each box. Which shows how Mildreda could figure out how many pencils she bought?
Answer: 12
Step-by-step explanation:
4 x 3 =12
Please please help please please ASAP please please help please please ASAP please please help please please ASAP please please help please please ASAP please please help
Answer:
37°
Step-by-step explanation:
Answer:
37
Step-by-step explanation:
all triangle = 180
53 + 90=143
180 - 143 = 37
PLEASE SIMPLIFY THIS
Answer:
15y / 8
Step-by-step explanation:
Multiplying by 2 to get the common denominator.
3y / 4 * 2 = 6y / 8
Combine like terms.
6y / 8 + 9y / 8
Final Answer:
15y / 8
Elyse wants to buy a new softball glove that costs $46.50. She has $15 and plans to save $5.25 each week. How many weeks will it take her to save the money?
Elysa would have to save money for 6 weeks to afford the glove
46.50-15= 31.5/5.25= 6
Calculate the slope of the passing line through each pair of points: (8, 6) and (-1, 6)
Answer:
[tex]\displaystyle m=0[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (8, 6)
Point (-1, 6)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute in points [SF]: [tex]\displaystyle m=\frac{6-6}{-1-8}[/tex][Fraction] Subtract: [tex]\displaystyle m=\frac{0}{-9}[/tex][Fraction] Divide: [tex]\displaystyle m=0[/tex]The marked price of a water cooler is $ 4650. The shopkeeper offers an off-season discount of 18% on it. Find its selling price.
Answer:
3813
Step-by-step explanation:
M.P of water cooler=$4650
Discount% on water cooler=18%
Discount on water cooler=18/100*$4650 i.e.$837
So,selling price=$4650-$837i.e.$3813 Ans.
Answer:
3813
Step-by-step explanation:
the formula will be 18 upon 100 multiply by 4560. the answer is 837. now subtract the original price from the discount. 4560-837 is 3813 which is ur answer.
Simplify the following expressions. All answers should be in standard form.
[tex]5x(3x + 2)[/tex]
Answer:
The given expression in simplified form is: [tex]15x^2+10x[/tex]
Step-by-step explanation:
Simplifying the expression involve reducing the number of terms to minimum and making the expressions in standard form.
This may involve addition, subtraction and multiplication of variables.
Given expression is:
[tex]5x(3x+2)[/tex]
Distributing 5x will give us:
[tex]= 5.3.x.x + 5.2.x\\=15x^2+10x[/tex]
Hence,
The given expression in simplified form is: [tex]15x^2+10x[/tex]
Which expression represents the greatest common factor (GCF) of 110 and 132?
A. 2 x 11
B. 2 x 5 x 7
C. 2 x 3 x 7
D. 5 x 7
Answer:
(B) 2x5x7
Step-by-step explanation:
Answer:
B
hope this helps! :)
Simplify the expression. ( 5 x 2 − 3 x ) − ( 5 x 2 − 3 x + 1 )
Answer:
-1
Step-by-step explanation:
Following PEMDAS The answer equals to -1
*plssss make me brainlist*
Answer:
Let's simplify step-by-step.
5x2−3x−(5x2−3x+1)
Distribute the Negative Sign:
=5x2−3x+−1(5x2−3x+1)
=5x2+−3x+−1(5x2)+−1(−3x)+(−1)(1)
=5x2+−3x+−5x2+3x+−1
Combine Like Terms:
=5x2+−3x+−5x2+3x+−1
=(5x2+−5x2)+(−3x+3x)+(−1)
=−1
Step-by-step explanation:
Show your work
I don’t know this question please help me!!!
Answer:
5
Step-by-step explanation:
150 diveded by 30 is 5
Answer:
It sounds like 5 months, but the wording you chose is a little strange. What are the other wording options?
Step-by-step explanation:
150/30=5.
I hope this helps.
A car travels about 45 feet in one second. At this speed,
about how many feet will the car travel in 3 seconds?
A
1,250 feet
B
1,500 feet
с
150 feet
D
135 feet
Solve the following
equations for r:
9r - 66 = 116 - 4r
Answer:
r = 14
Step-by-step explanation:
9r - 66 = 116 - 4r
+4r +4r
13r - 66 = 116
+66 +66
13r = 182
divide both sides by 13
r = 14
Hope this helps!!!
2/3b+5=20-b
can someone help me out plz because i keep getting this wrong
Answer:
b=9.
Step-by-step explanation:
Amir drove 165 miles in three hours . What was his speed in miles per hour
Answer:
165 divided by 3 55 miles per hour
Step-by-step explanation:
divide 165 by 3
equals to 1 hour
7n2 + 9k2 + 6 6n Submit
Answer:
9 ( -10 - 10y )
Step-by-step explanation: