Answer:
X^2+4X-32Step-by-step explanation:
I assume you want to simplify this.
Use distributive property:
x^2+4x−32 should be your answer.
Answer:
x^2+4x-32
Step-by-step explanation:
(x-4)(x+8)=x^2+8x-4x-32
x^2+4x-32
Use the discriminant to determine the number of real solutions to the quadratic equation.
6a2−11a+9=0
What is the number of real solutions?
Select the correct answer below:
0
1
2
Answer:
0
Step-by-step explanation:
Use discramnt formula
[tex]b {}^{2} - 4ac[/tex]
Where 6 is a, 11 is b and 9 is c
[tex]11 {}^{2} - 4(6)(9) [/tex]
[tex]121 - 216 = - 95[/tex]
Since the discramnt is negative, there are no real solutions and it will only produce imaginary solutions
Help me please. I don’t understand at all. I’m stressing. Like what?!?!?!
Answer:
z = [tex]\sqrt{117}[/tex]
Step-by-step explanation:
find 'y' first by using the altitude rule:
y/4 = 9/y
cross-multiply:
y² = 4(9)
y² = 36
y = [tex]\sqrt{36}[/tex] = 6
Find 'z' by using the Pythagorean Theorem with legs equal to 6 and 9
6² + 9² = z²
36 + 81 = z²
117 = z²
z = [tex]\sqrt{117}[/tex]
5 DdMll, 6 UdMll, 8 Cmil, 1 Dmil,
9 Umil, 7 c, 2 d, 3 u.
(valor posicional)
Answer:
A
Algebra For what values of the variables must ABCD be a parallelogram?
B
23. A 2y + 2 B 24. B
(3x + 10)
(8x + 5)º
3x + 6
54°
D
С
D
A
Зу - 9 с
ly+4
Please help me in struggling with this
Answer:
Step-by-step explanation:
21
16
27
15
70
Answer:
Step-by-step explanation:
Hello!
I think I can help.
Lets use the first problem and walk through it and I think it could help you with the others.
3/7 = ?/49
So basically with these problems you are working backwards. You are working right to left and dividing to figure out what you will need to multiply the other part of the fraction by.
So here we have 49 and 7 that line up with each other. (Always look for the fractions that line up horizontally)
Going right to left and dividing :
49 / 7
= 7
So we know that it was 7 x 7 to get that 49
So now we used the number we just found by dividing (7) and multiply it left to right by the other number to find the missing number (?).
If we do this we do :
3 x 7
= 21
And that is the missing number !
We plug that in right where the blank is (?) and we get :
3/7 = 21/49
I am not sure if you have to simplify this but you cant anyways. If you have questions about simplifying ask in the comments.
To check this we can actually multiply the side that had two numbers to begin with (the left side numbers) and multiply it by the number we found by dividing (7).
So we do this with 3/7 :
3 x 7 = 21
7 x 7 = 49
if we plug this back in we get :
21/49 = 29/49 and we know this is correct.
I hope this helps you solve the other problems. If you have any questions or are still confused with others please message me or comment and I will do what I can to help. :)
A train travels 150 km in the same time that a plane covers 525 km. If the speed of the plane is 20 km per hr less than 4 times
the speed of the train, find both speeds.
Answer:
Step-by-step explanation:
Kristy ran a mile in 6.58 minutes. She ran her second mile in 7.15 minutes. What was the time difference between her first and second mile.
Answer:
17 seconds
Step-by-step explanation:
7.15 minus 6.58 is .17 or 17 seconds
Answer:
17 seconds
Step-by-step explanation:
7 minutes and 15 seconds minus 6 minutes and 58 seconds
You also have to remember that in a minute, there is 60 seconds, not 100
Which number is composite?
A. 36
B. 2
C. 19
D. 23
Answer:
A. 36
Step-by-step explanation:
A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number. The number 36 can be evenly divided by 1, 2, 3, 4, 6, 9, 12, 18 and 36, with no remainder. Since 36 cannot be divided by just 1 and 36, it is a composite number.
One side of a square has a measurement of 2x + 4. Write an expression to represent the perimeter of the shape.
Answer:
4(2x+4)
for example, if 5 were the length of a side you'd do 4(5). 4 because theres 4 sides and the formula for P is P= l+l+w+w OR P=2l+2w
Solve for P:
-11 = p - 9
Answer:
-2Step-by-step explanation:
Add 9 on both sides.
You'll get -2=p
So -2 = p.
-2 is your answer.
Answer:
-2
Step-by-step explanation:
-11 = p - 9
p = -11 + 9
p = -2
Check:
-11 = -2 - 9
Hope that helps!
thank you in advance
Answer:
the answer is option (b)
Answer:
First option: y= -4/3x + 7
Step-by-step explanation:
It's perpendicular
What does decreased mean in math?
Answer:
becoming less or fewer; diminishing. Mathematics. (of a function) having the property that for any two points in the domain such that one is larger than the other, the image of the larger point is less than or equal to the image of the smaller point; nonincreasing.
Step-by-step explanation:
BRAINLIST PLEASE!
Meaning of decreased in math is, get smaller in size, number or quantity.
We have to given that,
To defined decreased mean in math.
We know that,
We use minus sign to denote subtract, decreased by, take away, etc.
For example, Minus sign also means how much is one value more than the other value.
Hence, Meaning of decreased in math is, get smaller in size, number or quantity.
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ6
If a shirt selling for $18 is marked upto $20 then the % increase is
equal to
a. 11%
b. 10%
c. 12%
d. 9%
Answer:
11%
Step-by-step explanation:
it is a simple question, whenever you need to find % increase or % decrease.
always divide the increase as in this case $2 by the original amount which is $18 and multiply it by 100 as you need to take the %.
so,
2/18*100 gives you 11.11% * is multiply
Step-by-step explanation:
$20 - $18 = $2
to get % of increase we need to know what % of $18 the $2 are.
$2 ÷ $18 = 0.11111111........
Multiply this number by 100 and you will get the percentage.
0.111111111111........ x 100 = 11.1111111111....%
77 mi
36 mi
What is the length of the hypotenuse?
C=
miles
Answer:
[tex]\\c=85mi\\[/tex]
Step-by-step explanation:
[tex]77mi^{2} +36mi^{2} =7,225mi\\\\7225mi=c^{2}[/tex]
[tex]\sqrt{7225} =85[/tex]
Which equation shows this volume formula solved for h?
Answer:
Step-by-step explanation: the answer is B i think
Answer:
A
Step-by-step explanation:
[tex]V = \frac{nd^2h}{6}[/tex]
multiply both sides by 6
[tex]6V = nd^2h[/tex]
divide both sides by [tex]nd^2[/tex]
[tex]\frac{6V}{nd^2} = h[/tex]
So the answer is A.
Help me answer question 1
Answer:
The answer is option
3 and 4
How do you make it 8
Answer:
I think you spend 14 points on it
Answer:
4+4=8
Step-by-step explanation:
I hope it's helpful!
Have a nice day!
A, b birer sayı olmak üzere a. b =12 ise a+b nin en büyük ve en küçük değerini bulunuz?
Answer:
en büyük 13 en küçük 7 dir
find the result when you subtract (5y+9z)to(4y-7z)
A. -y-16z
B.-y+16z
C.9y+2z
D.9y-2z
Which number is divisible by 8? O 1,026 1,024 1,022 1,020
Answer:
1024
Step-by-step explanation:
1024/8=128. all are divisible by 8, but 1024 is the only one where you don't need a decimal in the answer
Please help, this is due soon.
Jefferson’s class was studying sunflowers. They learned that sunflowers are able to make their own food. Which parts of a sunflower collect most of the sunlight needed to make food?
Sam is four years older than his brother. The sum of their ages is 24. How old is
each brother?
Answer: the brother is 10
Step-by-step explanation:
Answer:
sam is 14 his brother is 10
Step-by-step explanation:
if sam us 4 years older than his brother then sam has to be atleast 10 therefore his brother would be 10
Giving a test to a group of students, the grades and gender are summarized below
A B C Total
Male 4 11 15 30
Female 12 19 16 47
Total 16 30 31 77
If one student is chosen at random,
Find the probability that the student was male AND got a "A".
Answer:
id
Step-by-step explanation:
Answer:
0.052
Step-by-step explanation:
[tex]P=\frac{4}{77}=.052[/tex]
1. Clare has $150 in her bank account. She buys a bike for $200. What is Clare’s account balance now?
2. If Clare earns $75 the next week from delivering newspapers and deposits it in her account, what will her account balance be then?
Answer:
1. -$50 2. $25
Step-by-step explanation:
150-200= -50
-50+75=25
someone please help
What is the slope of the line shown below?
10
A. 3
61 (1,5)
B. 2
Oh
61,-1)
O c. -3
10
15
O D. -2
-102
Answer:
A. 3
Step-by-step explanation:
The formula for slope is (y2-y1)/(x2-x1), for two points (x1,y1) and (x2,y2) on the line.
Our points are (-1,-1) and (1,5):
(5-(-1))/(1-(-1))
6/2
3
The slope of the line shown below is 3.
What is Slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the
change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx where, m is the slope
We have,
Points from the graph (1, 5) and (-1,-1).
So, the slope of line
= (-1 - 5)/ (-1 - 1)
= -6 / (-2)
= 3
Thus, the slope of line is 3.
Learn more about Slope here:
https://brainly.com/question/3605446
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I NEED THE ANSWER ASAPPP!!! help please
Answer:
Step-by-step explanation:
x^2 + 8^2 = 9^2
x^2 + 64 = 81
x^2 = 17
x = sqrt(17)
answer is D
find the value of x??
Answer:
[tex]\huge\boxed{x=10}[/tex]
Step-by-step explanation:
Look at the picture.
[tex]\dfrac{3x}{y}=\dfrac{4x+20}{2y}\qquad|\text{cross multiply}\\\\(3x)(2y)=(y)(4x+20)\qquad|\text{divide both sides by}\ y\\\\(3x)(2)=4x+20\\\\6x=4x+20\qquad|\text{subtract}\ 4x\ \text{from both sides}\\\\6x-4x=4x-4x+20\\\\2x=20\qquad|\text{divide both sides by 2}\\\\\dfrac{2x}{2}=\dfrac{20}{2}\\\\x=10[/tex]
I need to solve -15 (1/5w -1/3) problem for math class
-3w-5
hope that helps^^
Factor the expression using the GCF 42-12
If five times the square of a certain positive number is
decreased by twice the number, the result is 16. Find the
number [Only an algebraic solution will be accepted.]
Answer:
5 bud i think it this but i might be wrong
