Answer:
27
Step-by-step explanation:
The number that lies halfway between 16 and 38 is 27.
What is the number system?A number system is defined as a way to represent numbers on the number line using a set of symbols and approaches. These symbols, which are known as digits, are numbered 0 through 9.
We have to determine the number that lies halfway between 16 and 38.
This is calculated by finding the average (or mean) of the two numbers. To do this, add the numbers together (16 + 38) and divide by 2.
⇒ 54/2
The result is 27.
Thus, the number that lies halfway between 16 and 38 is 27.
Learn more about the number system here:
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calculate p² +3q when p=2 and q=2
Answer:
10
Step-by-step explanation:
p² +3q
= 2² +3*2
=4 + 6
=10
Answer:
10
Step-by-step explanation:
2² +3*2=4+6=10
PLZ ANSWER THIS QUESTION!!!!
Answer:
C. Shape with 4 equal sides
Step-by-step explanation:
Shape with 4 equal sides
A student walks 10 km in 150 mins. What's the students average speed in Km/in
Answer:
The answer is 15 km/in
Step-by-step explanation:
150 divided by 10 is 15.
Therefore the answer is 15 km/in.
Kiran said that this diagram can show the solution to 16÷8=? or 16÷2=?, depending on how we think about the equations and the “?”.
EXPLAIN why he is correct.
Answer:
16÷2
Step-by-step explanation:
It would be 16 divided by 2. This is because in the diagram they are splitting 16 by 2. Splitting 16 by 2 gets you two 8's.
what is the surface area of the cylinder below?
Answer:
138.2
Step-by-step explanation:
use the formula 2(pi)radius (height)+2(pi)radius squared
can u mark my answer the branliest pliz
Please help me I need to pass this class
60 POINTS!!!!
Your mother is 25 years older than you. Your father is 3 years older than your mother. The product of all three ages are 32,130. How old is your father?
Explanation would be appreciated!
My father is 42 years old as obtained from the cubic polynomial's real root.
What is a factor of a polynomial?We know that if x = a is one of the roots of a given polynomial x - a = 0 is a factor of the given polynomial.
To confirm if x - a = 0 is a factor of a polynomial we replace f(x) with f(a) and if the remainder is zero then it is confirmed that x - a = 0 is a factor.
let my age be x years.
So, My mother is (x + 25) and my father is (x + 28) years.
∴ {x(x + 25)(x + 28) = 32130.
(x² + 25x)(x + 28) = 32130.
x³ + 53x² + 700x = 32130.
x³ + 53x² + 700x - 32130 = 0.
Now solving this has only one real solution x = 17.
So, My father is (17 + 25) = 42 years old.
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If mABD = (2x – 7), mDBC = (8x + 16), and
mABC = 159º, find mABD.
Answer:
Step-by-step explanation:
hello
15
2x + 3y = 23
-x+10y = 46
Answer:
x=4 y=5
Step-by-step explanation:
best anwser gets brain make sure show anwser thank you
Answer:
2187
Step-by-step explanation:
1594323/729
basically and you just need to divide and your good.
Solve the equations
3a + b = 10 and 2a + 4b =0.
3a + b = 10
2a + 4b=0
Answer:
a = 4 , b = -2
Step-by-step explanation:
3a + b = 10
2a + 4b = 0
(By using elimination method, eliminate one variable) - to get only one equation
(3a + b = 10 ) 4
2a + 4b = 0
12a + 4b = 40
(minus)
2a + 4b = 0
10a = 40
a = 40/10
a = 4
(substitute a into an equation to get b)
2a + 4b = 0
2(4) + 4b = 0
4b = 0 - 8
b = -8/4
b = -2
Cassie simplified the composed function f(x)= cot(arcsin x). Her work is shown below.
In which step did Cassie make her first error?
step 1
step 2
step 3
step 4
She didn't make any errors
Answer:
1. C
2. A
3. A
4. D
Step-by-step explanation:
Slope that is passing through (3,5) and (0,-7)
Answer: 4
Step-by-step explanation:
Slope: [tex]\frac{y_{2} -y_{1} }{x_{2}- x_{1} }[/tex]
y₂ = -7
y₁ = 5
x₂ = 0
x₁ = 3
[tex]\frac{-7 -5 }{0- 3 }=\frac{-12}{-3} = \frac{4}{1} = 4[/tex]
Slope: 4
HELP QUICK!! solve by substitution and show work please
Increase £490 by 11% give your answer rounded to 2 DP.
Answer:
£543.90
Step-by-step explanation:
→ Write increase 11% into decimal format
100 + 11 = 111 ÷ 100 = 1.11
→ Multiply the price by the increase in decimal amount
490 × 1.11 = £543.90
Which set of ordered pairs represents a function?
o {(6,5), (-5,4), (5, 7), (6, -8)}
o {(2, 1), (5,-6), (8,-5), (4, -6)}
{(4,-5), (-7,3), (-7, -8), (-5, -4)}
o {(6,-1), (-7,0), (6,3), (-2,4)}
The difference between a number and its square is 20. Find the
numbers.
Answer:
-4 or 5
Step-by-step explanation:
let number be x
x²-x=20
Rearrange
x²-x-20=0
(x+4)(x-5)=0
Separate
x+4=0, x-5=0
x=-4 or 5
ANYONE KNOW?!!!???this
Answer:
7
Step-by-step explanation:
Cuz 11 - 7 = 4
Select the correct answer.
Consider this absolute value function.
If function f is written as a piecewise function, which piece will it include?
Answer:
I think it is C sorry if it wrong
Step-by-step explanation:
Answer:
I got A
Step-by-step explanation:
It was on Plato
which of the lines graphed has a slope of -2 and a y-intercept of 3
Answer:
I think b
Step-by-step explanation:
need a better quality photo
Answer:
B
Step-by-step explanation:
It's a little hard to see but I'm pretty sure it's B because we're looking for a graph that has a slope of -2 so it couldn't be A or D because they have positive slopes since they are pointing up. That leaves B and C. I can't really see but C doesn't look like it has a slope of -2, so I went with B because it has a y-intercept of 3 and looks like it has a slope of -2.
Use your graph to find estimates of the solutions to the equation x^2 - x - 2 = 3
Answer:
x = -1.791 and x = 2.791
Step-by-step explanation:
Graphing x^2 - x - 2 = 3
we got 2 intersects at x = -1.791 and x = 2.791
Answer:
I dont know if this is the right answer hehe
The volume of a cube related to the area of a face by the formula V =A^3/2. What is the volume of a cube whose face has an area of 25mm^2.
Answer:
Volume = 125 mm^3
Step-by-step explanation:
Here, we want to get the volume of the cube
What we have to do here is to substitute the value of the area
We have this as
:
V = 25^(3/2)
V = (√25)^3
V = 5 * 5 * 5 = 125 mm^3
Amir arranged 9 photos on a bulletin board. He put the photos in rows. Each row contains the same number of photos. How many photos could be in each row? (Giving Brainliest)
Options:
a. 1, 6 or 9 photos
b. 1, 3 or 9 photos
c. 1, 2 or 9 photos
d. 1, 3 or 6 photos
Answer:
I select b, 1,3, or 9 photos as my answer.
[tex] \frac{5}{7} \times 6[/tex]
what is 5/7 x 6
Answer:
[tex]\frac{30}{7}[/tex]
Step-by-step explanation:
to multiply a number by a fraction, just multiply straight across
you just do 5 * 6 to get 30 and since there isn't anything under the 6, you put an imaginary 1 to get you 7 so your answer will be 30/7
what is 21 divided by 700 can you help me plizz XD
Answer:
0.03
Step-by-step explanation:
21/700 = 0.03
Answer: 0.03
Step-by-step explanation:
I ONLY HAVE LITTLE TIME PLZ HELP
Which statement correctly identifies the line of reflection?
A.The triangles are reflected across the X-axis
B.The triangles are reflected across the Y-axis
C.The triangles are reflected across the line Y=X
D.The triangles are reflected across the line Y=-X
A color printer prints 13 pages in 8 minutes How many pages does it print per minute
Answer: 13/8 or 1.625
Step-by-step explanation:
© Solve the simultaneous equations
-3x + y= – 8
3x + 2y = – 13
X =?
y =?
Answer:
x=1/3
y=-7
Step-by-step explanation:
using the elimination method, you can add both equations vertically, to eliminate the x
-3x+y=-8
3x+2y=-13
3y=-21
y=-7
we then fix the value of y into the first equation
-3x+y=-8
-3x-7=-8
-3x=-8+7
-3x=-1
x=1/3
Write and Solve 2 Step Equations. Show all your work
15.) In a week, Tara earns $15 less than three
times what Carrie earns. Tara earns $105.
How much does Carrie earn?
Answer:
Carries earns [tex]40[/tex] dollars
Step-by-step explanation:
Given -
Tara earns $15 less than three times what Carrie earns.
Total earning of Tara [tex]= 105[/tex] dollars
Let "X" be the earning of Carrie
[tex]3X - 15 = 105\\3X = 120\\X = 40[/tex]
Carries earns [tex]40[/tex] dollars
Help sir! Thank you, Mr Thompson
Problem 1
To find the y intercept, plug in x = 0 and simplify
f(x) = (x-2)(x+4)
f(0) = (0-2)(0+4)
f(0) = (-2)*(4)
f(0) = -8
We have x = 0 pair up with y = -8
The y intercept is (0,-8)
Answer: Choice D
========================================
Problem 2
(x-2)(x+4) is the same as x^2+2x-8 after using the FOIL rule. The distributive property is an alternate option.
The leading coefficient of x^2+2x-8 is 1. Since this leading coefficient is positive, it tells us that the parabola opens upward.
Answer: C) Parabola opens upward
========================================
Problem 3
Answers:
A = h(x)B = f(x)C = g(x)Explanation:
Note that 1-x^2 is the same as -x^2+1 and this has a negative leading coefficient. So the parabola opens downward. That must mean curve C matches with function g(x).
Both f(x) and h(x) have the same leading term of x^2. However, the constant terms are different. Because f(x) has a smaller constant (-4 is smaller than 4) this makes curve B to be f(x), while curve A is h(x). The larger the constant is, the further shifted up the curve will be.