Answer:
-6ca-4
Step-by-step explanation:
Answer:
9c2/a4
Step-by-step explanation:
Find the missing angles.
Answer:
m3=113
m2=42
m1=88
Step-by-step explanation:
Help please no wrong answer
Answer:
3 with the 6 on top
Step-by-step explanation:
hey guys please answer if you know
Answer:
19
Step-by-step explanation:
note that
(a + b)² = a² + b² + 2ab , that is
a² + b² + 2ab = (a + b)² ← subtract 2ab from both sides
a² + b² = (a + b)² - 2ab
= 5² - 2(3)
= 25 - 6
= 19
Answer:
19
Step-by-step explanation:
since value of both a+b and a*b are given
formula for a^2 + b^2 is (a+b)^2-2*a*b
Substituting those value,
a^2+b^2=5^2-2*3
i.e. 25-6
=19
In the parrallelogram, find y.
Answer: I think it’s b which is also 5
Step-by-step explanation:
In the link
if I did it wrong someone pls correct me
A model ship is built to a scale of 1centimeter: 5 meters. The length of the model is 30 centimeters. What Is the length of the actual ship?
Hi, i need help Pleases.
Answer:
Step-by-step explanation:
What is the slope pls help
Answer: non- proportional
Step-by-step explanation:
doesn't go through (0,0)
Answer:
[tex]\frac{2}{3}[/tex]
Step-by-step explanation:
To find the slope of a line, we would need to use the equation [tex]\frac{y_2-y_1}{x_2-x_1}[/tex] where two given points are [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex]. These points can be any two points that fall on the line.
In the graph, two points we can use to find the slope is (1, 2) and (-2, 0).
[tex]\frac{y_2-y_1}{x_2-x_1}\\\\\frac{0-2}{-2-1} \\= \frac{-2}{-3} \\= \frac{2}{3}[/tex]
Therefore, the slope of the line is [tex]\frac{2}{3}[/tex].
I hope this helps!
If x-2 is one of the factors of x^4-kx^2+4, find the value of k.
Step-by-step explanation:
Given expression is x⁴-kx²+4 =0
x−2 is a factor of the given expression.
So, x=2
Substitute in the equation, we get
2⁴-k(2)²+4
⇒16+4k+4=0
⇒4k=−20
⇒k=−5
What is the approximate circumference of the circle shown below ? A^ 12.2 cn O A. 76.6 cm B. 48.8 cm C. 19.2 cm O 38.3 cm
Answer:
D. 38.3 cm
Step-by-step explanation:
Just took test on a p e x
Answer: 38.3
Step-by-step explanation:
Question below in image
What is 8/9 minus 5/6
Answer:
1/18
Step-by-step explanation:
Translate the inequality and solve. Three times a number is greater than six. 1 point
Answer:
3x > 6
x > 2
Step-by-step explanation:
Use the expression $100 + 5n to find the total price for n students to take a field trip to the science museum. If 175 students go on the field trip, how much will total cost?
Answer:
Total cost= $975
Step-by-step explanation:
Giving the following information:
Total cost= 100 + 5*n
n= number of students
The $100 is a fixed cost. It remains constant no matter the number of students. The $5 is the unitary variable cost. The total variable cost increases with the number of students.
Total cost for 175 students:
Total cost= 100 + 5*175
Total cost= $975
Josue tosses a coin and spins the spinner at the right. What are all the possible outcomes?
Answer:
50 50 ?
Step-by-step explanation:
Jamal drew angle bisector AD with D on the line segment BC. If BD=3, DC=9 and AB+AC=28 find AB and AC.
Answer:
AB = 7
AC = 21
Step-by-step explanation:
Because AD is an angle bisector it divides the triangle into proportional parts. That is ...
AC/DC = AB/BD
(28 -AB)/9 = AB/3 . . . . use AC = 28 -AB
28 -AB = 3AB . . . . . . . . multiply by 9
28 = 4AB . . . . . . . . add AB
AB = 28/4 = 7 . . . . divide by 4
AC = 28 -7 = 21
The lengths AB and AC are 7 and 21, respectively.
_____
Additional comment
The triangle ABC cannot exist. The reason is that its side measures are 7, 12, and 21. The sum of 7 and 12 is not greater than 21, so the side measures do not satisfy the triangle inequality.
For the triangle to exist, the sum of AB and AC cannot exceed 24 for the given values of BD and DC.
1) 35 is what percent of 140 2) 250 is 45% of what number? 3) 74 is what percent of 740? 4) 350 is 50% of what number?
Answer:
1) 25%
2) 555.56
3) 10%
4) 700
Step-by-step explanation:
1) 35 is what percent of 140
This is calculated as:
35/140 × 100
= 25%
2) 250 is 45% of what number?
Let the number be represented as x
This is calculated as:
45% of x = 250
45/100 × x = 250
45x /100 = 250
Cross Multiply
45x = 250 × 100
x = 25000/45
x = 555.55555556
x = 555.56
3) 74 is what percent of 740?
Let the percentage be represented by x
x% × 740 = 74
Divide both side by 740
x% = 74/740
x% = 0.1
Converting to percentage
0.1 × 100 = 10%
4) 350 is 50% of what number?
Let the number the represented by x
This is calculated as:
50% of x = 350
50/100 × x = 350
50x /100 = 350
Cross Multiply
50x = 350 × 100
x = 35000/50
x = 700
x = 555.56
The random variable W can take on the values of 0, 1, 2, 3, or 4. The expected value of W is 2.8. Which of the following is the best interpretation of the expected value of random variable W?
A randomly selected value of W must be equal to 2.8
B
The values of W vary by about 2.8 units from the mean of the distribution
с
The mean of a random sample of values selected from the distribution will be 2.8
D
A value of randomly selected from the distribution will be less than 2.8 units of the mean
E
For values of Wrepeatedly selected at random from the distribution the mean of the selected values will approach 2.8.
Answer:
E
Step-by-step explanation:
I did it on AP Classroom
I need The rate of change
Answer:
m=4
Step-by-step explanation:
To find the average rate of change, you have to calculate the change in y over x which gives you 4
Robert started to save money to purchase a new game console. His savings at the end of the first week included a jar of 368 nickels and dimes. The total value of the coins was $24.40. Which system of equations below would be the best to use to find the number of nickels and dimes Anthony had at the end of the first week?
a. n+ d = 368
5n + 10d = 24.40
b. n+ d = 24.40
0.05n + 0.10d = 368
c. n + d = 368
0.05n + 0.10d = 24.40
d. n + 9 = 368
0.5n + 0.10d = 24.40
Answer:
0.05n + 0.10 d =24.40
Step-by-step explanation:
Nickel is worth 0.05 of a dollar(1)
The system of equations below would be the best to use to find the number of nickels and dimes Anthony had at the end of the first week is:
n + d = 368
0.05n + 0.10d = 24.40
The number of nickels and dimes Anthony saved at the end of the first week can be determined using two equations. This is known as simultaneous equations.
The total number of nickels and dimes in the jar is 368. This can be represented with the equation:
nickels + dimes = 368
n + d = 368. This would be the first equation.
A nickel is equal to 0.05 of a dollar and a dime is equal to 0.1 of a dollar. The total sum of money in the jar is $24.40. This means that the value of dimes and nickels in the jar is $24.40. This can be represented with the equation: 0.05n + 0.10d = 24.40. This is the second equation.
To learn more about simultaneous equations, please check: brainly.com/question/23589883?referrer=searchResults
Adam is going to make concerte He Is going to use 180kg of cement 375kg of sand 1090kg of stone Cement, sand, stones are sold in bags: 1 bag cement is 25kg 1 bag sand is 22.5kg 1 bag stone is 50kg Adam already has 8 bags of cement 19 bags of sand 29 bags of stones Work out what bags he needs to buy to make the concrete. Working must be shown
Answer:
The answer is "90 kg stone ".
Step-by-step explanation:
Adam's got:
[tex]\to 8 \times 25 = 200 \\\\\to 19 \times 22.5 = 427.5 \\\\\to 20 \times 50 = 1000 \\\\[/tex]
He's got enough sand and cement
The stone value:
[tex]\to 1090-1000 = 90 \ kg[/tex]
He has 2 stone bags.
yall in winter break already????
Answer:
nahhhhhhhh. Will be tomorrow tho wbu?.
Answer:
no I think tomorrow is the winter break
Step-by-step explanation:
so sad
need some help (Geo)
Answer:
b
Step-by-step explanation:bb
Step-by-step explanation:
Angle 6 and Angle 3 must be supplementary to show that the 2 lines are parallel (D).
are the lines y=x+4 and y=x-2 perpendicular
Answer:
no they are parallel because the slope is the same they just are at different y- intercepts
Plz, Help me with this question.
Answer:
Hello :D
Step-by-step explanation:
Answer:
x+7 i think
Step-by-step explanation:
A baseball team won 20 games and lost 10 games. What percent of the games did the team win?
o 3359%
50%
6659%6
200%
Answer:
the first one
Step-by-step explanation:
what is the answer for -2p > -16
Answer:
p<8
Step-by-step explanation:
We multiply both sides by -1 to get
But remember, when you do that you reverse it, so we turn > into a <
2p<16
we divide both sides by 2
p<8
Hope this helps :)
Answer:
p < 8
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define
-2p > -16
Step 2: Solve for p
Divide -2 on both sides: p < 8Here we see that any number p smaller than 8 would work as a solution to the inequality.
Christian had $80.45 in his bank account on Monday.He deposited $20.50 on Tuesday.He then withdrew 37.25 on Wednesday.How much did Christian have left in his account on Thursday?
Answer:
138.2
Step-by-step explanation:
Answer:
For thursday he had 63.70 $
Step-by-step explanation:
80.45 + 20.50 - 37.25
63.70
For the points P and Q, find the distance d(P, Q).
P(3,-6), Q(7,-4)
Answer:
d=2[tex]\sqrt{5}[/tex]
Step-by-step explanation:
please give thanks :)
A cylindrical water vessel of diameter 1.4 m holds 770 litres of water. find the height of the vassel
Answer:
Answer at the bottom!!
Step-by-step explanation:
Given the diameter of cylinder = 1.4 m
=> Radius = 1.4/2 = 0.7 m
We know that volume of a cylinder = πr²h
= 3.14 x 0.7² x 2.1= 3.23 m³
For the pipe radius = 3.5/2 = 1.75 cm = 0.0175m
water flows at a rate of 2 m per second
So, volume of water discharged in one second by pipe = πr²L
= 3.14 x 0.0175² x 2=0.0019
Hence time taken by the pipe to fill the cylinder
= 3.23/0.0019= 1700 sec
= 28 minutes and 20 seconds
Hence the time taken by the pipe to fill the cylinder is 28 minutes and 20 seconds.
Hope this helps!!
Find the equation of the straight line which is perpendicular to the straight line 3x+4y=12 such that perpendicular distance from the origin is equal to the perpendicular distance from (3,2) on the given line
Answer:
3y-4x = -6Step-by-step explanation:
First get the slope of the given line;
Given the equation of the line 3x+4y=12
Rewrite in standard form y = mx+c where m is the slope;
3x+4y=12
4y = -3x + 12
y = -3x/4 + 12/4
y = -3x/4 + 3
Hence the slope of the given line is -3/4
Since the required line is perpendicular to this line, the slope of the required line will be M = -1/(-3/4) = 4/3
Get the equation:
Substitute M = 4/3 and the point (3,2) into the point slope equation of a line as shown;
y-y0 = m(x-x0)
y - 2 = 4/3(x-3)
Cross multiply
3(y-2) = 4(x-3)
3y - 6 = 4x - 12
3y - 4x = -12 + 6
3y-4x = -6
Hence the required equation of the line is 3y-4x = -6
