Answer:
x+y=900
x-y=300
2x=1200
x=600
I NEED HELP ASAP I WILL GIVE ALL MY POINTS AWAY FOR THIS
Step-by-step explanation: the tangent is 8/6 because it is the opposite (8) over the adjacent (6)
sin0=? cos0=? tan1=?
Answer:
See explanations below
Step-by-step explanation:
Sin 0 = x
0 = arcsinx
Since 0 the angle is positive and lies in the 1st and second quadrant, sin 0 = 0 (in the first quadrant)
cos 0 = 1 (by punching the calculator)
tan 1 = 0.0174
All this values can easily be gotten directly from calculators
Find zeros and y intercept of each function algebraically f(x)=x^3-10x^2+24x
Answer:
The zeros are 0, 4, 6.
The y-intercept is 0.
Step-by-step explanation:
f(x) = x^3 - 10x^2 + 24x
x^3 - 10x^2 + 24x = 0
x(x^2 - 10x + 24) = 0
x(x - 4)(x - 6) = 0
x = 0 or x - 4 = 0 or x - 6 = 0
x = 0 or x = 4 or x = 6
y-intercept:
Since x = 0 is a root, that means that the point (0, 0) is part of the function. That makes the y-intercept 0.
You can also solve for the y-intercept by letting x = 0 in the function and solving for f(0).
Let x = 0.
f(0) = 0^3 - 10(0^2) + 24(0)
f(0) = 0
y-intercept: 0
A thunderstorm travels at a constant speed. In 15 minutes , the storm travels 12 miles. If the storm continues to travel at the same rate, how far would it travel in 90 minutes?
Answer: 72 Miles In 90 Minutes
Step-by-step explanation: First, you have to divide both 15 & 12 by 15, (which represents minutes), and you get 1 over 0.8. Next, you multiply 1 over 0.8 times 90, which gibes you 90/72. There is your answer! I hope that you found this helpful.
Here is the equation below:
15/12 divided by 15/15 = 1/0.8 x 90/90 = 90 MINUTES/72MILES
can someone help me find the side of a 30 60 90 triangle
Answer:
y = 7.5
x = 7.5√3
Step-by-step explanation:
sin(30) = 1/2
cos(30) = √3/2
Above is rule
==>
y = 7.5
x = 7.5√3
What is the degree of 4x^3 + 2x^2 + 3x -1 *
Answer:
Hello, and welcome to brainly im gonna be your personal assistant for today your awnser to this question is easy here it is 1.
The degree is 4
2. x^3 - 4x =0
3. x-1/2=0 x-2/3=0
Step-by-step explanation:
can anybody help? marking brainliest
Answer:
C
Step-by-step explanation:
The key here is she wants to make "at least", implying that you have an inequality. If she cecks the house 4 times plus the 2 overnight stays then she will have exactly 150, so that is the least needed to reach her goal. So at least automatically turns it into an inequality.
A pet store has 20 female kittens and 12 male kittens. What is the ratio of males to females in simplest form? I NEED HELP ASAP
Answer:
20;12
Step-by-step explanation:
I Don't know for sure but i hope it helps <3
Answer:
it is 12:20
Step-by-step explanation:
also can I have brainliest?
find the volume of cuboid
meausring 19 cm by 15 cm by 10 cm.
Substitute x = 9.4, y = -1.7, and z = 4.8 into the expression 2y² - 4x + 8z.
An arithmetic sequence has a common difference of 5 and the 3rd term is 15. What is the 5th term?
Step-by-step explanation:
Given,
d=5
a3=15
Now, a3=a+2d
= 15=a+10
= 15-10=a
= 5=a
a5=a+4d
= 5+20
= 25
100 point NO SAMPLE ANSWERS PLEASE!
When you have two shapes to compare on a coordinate plane, you can determine the scale factor, knowing that the transformation was a dilation. Generate instructions you would give another student to determine the scale factor.
brainiest if you don't give sample answers
Assume that the initial coordinates are (x,y) and that the dilated coordinates are (x',y').
The dilation is therefore:
(x,y) ............> (x',y')
Now, let's assume that the dilation factor is k.
Therefore:
x' = kx
y' = ky
Based on the above, all the student has to do is get the initial coordinates and the final ones and then substitute in any of the above two equations to get the value of k.
Example:
Assume an original point at (2,4) is dilated to coordinates (4,8). Find the dilation factor.
Assume the dilation coefficient is k.
(x,y) are (2,4) and (x',y') are (4,8)
Therefore:
x' = kx .........> 4 = k*2 ..........> k = 2
or:
y' = ky ..........> 8 = k*4 .........> k = 2
Based on the above, the dilation coefficient would be 2.
Hope this helps :)
Answer:
First you have to find the ordered pairs for the shapes. Then figure out how much the pre-image was multiplied by. The number it was multiplied by is your scale value.
Step-by-step explanation:
I took the assessment. :)
Please help......... please
Answer:
Step-by-step explanation:
2x + 4 = 2(x + 2)
[tex]Area = \frac{1}{2}*b*h\\\\=\frac{1}{2}*(2x-1)(2x + 4)\\\\\\= \frac{1}{2}*(2x - 1)*2*(x + 2)\\\\= (2x -1)(x+ 2)[/tex]
= 2x *x + 2x* 2 + x*(-1) + 2*(-1)
= 2x² + 4x - x - 2
= 2x² + 3x - 2
The point P(3,4) is dilated by a scale factor of 5 and the center of dilation is the origin. What are the coordinates of P'?
P (____,___)
Answer:
P' (15, 20)
Step-by-step explanation:
P' ( 3×5, 4×5) = P' (15, 20)
14=s/3 what does s equal
===============================================
Explanation:
To isolate s, we need to undo the division. We'll multiply both sides by 3
14 = s/3
3*14 = 3*(s/3)
42 = s
s = 42
-------
As a check,
14 = s/3
14 = 42/3 .... replace s with 42
14 = 14
We get the same thing on both sides, so this confirms we have the correct value of s.
What is .05866 as a fraction?
.05866 as a fraction is 2933 / 50000
Explanation: Convert to a mixed number by placing the numbers to the right of the decimal over 100000. Then reduce the fraction.
angle A = 18° and angle B = 25°. Find angle C.
Answer: Angle C: 137 degrees
Step-by-step explanation:
A+B+C=180
18+25+C=180
C=137
Step-by-step explanation:
triangle add U to 180
18 + 25 = 43
180 - 43 = 137 degree is c
find the slope of the line pictured
help please it is attached thank you
i will give first person brainlist for first answer i need help fast
Mr. McCoy entered his classroom at 8:00 am and found the temperature to be 86 degrees. He immediately turns on the air conditioner. By 1:00 pm the temperature was down to 76 degrees The temperature went down at an even rate while the air conditioning was running. write an equation to find the temperature in Mr. McCoy's room at any given time between 8:00 am and 1:00 pm
Answer:
8:00 am his temperature was 86 at 1 pm it was 76 it went down 10 in the 5 hours of time so it went down 2 every hour I hope this helps
Step-by-step explanation:
Find the proper answer
which step comes first -b-2<8
Answer:
Step-by-step explanation:
Alright so the step that comes first is adding two to both sides.
Let me show you,
Step 1
-b-2<8 Add 2 to both sides
-b<10
Then you divide the sides by -1
-b<10
b>-10
a paper balloon costs php7.50 what is the cost if i buy 6balloons?
Answer:
45
Step-by-step explanation:
Basil has five numbered cards.
Two of the numbers are hidden. 4 9 9 ? ? 8
The mode of the five numbers is 8.
The mean of the five numbers is 6
c) Work out the two hidden numbers.
Answer:
The two hidden numbers are 8 and 1.
Step-by-step explanation:
Mean of a data-set:
The mean of a data-set is given by the sum of all its values divided by the number of values.
Mode of a data-set:
The mode of a data-set is the value that appears the most.
In this question:
4, 9, x, y, 8
Mode is 8 means that at least one of them must be 8, so i will say x is 8 and we have:
4, 9, 8, y, 8
The mean of the five numbers is 6
This means that:
[tex]\frac{4+9+8+y+8}{5} = 6[/tex]
[tex]29+y = 30[/tex]
[tex]y = 30 - 29[/tex]
[tex]y = 1[/tex]
The two hidden numbers are 8 and 1.
Renee and Thomas live at the beach and collect seashells. The number of shells Renee collects on any given day, R, is approximately Normal with a mean of 58.2 shells and a standard deviation of 12.8 shells. The number of shells Thomas collects on any given day, T, is approximately Normal with a mean of 47.9 shells and a standard deviation of 11.5 shells. Assume the two random variables are independent of each other. What is the probability that on a randomly selected day the total number of shells collected by Renee and Thomas is 120 or more? 0.002 0.209 0.284 0.791
Answer: .209
Step-by-step explanation:
took the test
Find the missing sides and leave answers as radicals in simplest form!! I need help
Answer:
21\deg 17'34"
Step-by-step explanation:
21\deg 17'34" i thin k
Help!!!!!!!!!!!!!!!!!!
Answer:
y > 0
Step-by-step explanation:
Can someone tell me were I went wrong?
A different camera is selling for $7.50 off the regular price. It was discounted 15%. What was the original price of the camera?
A)$112.50
B)$75.00
C)$50.00
D)$45.00
Answer:
C) $50.00
Step-by-step explanation:
$7.50 is the 15% discount
1% of the original price would be ($7.50 / 15)=0.50
100% of the original price would be 100 x 0.50 = $50.00
Describe each polynomial expression by type and components based on the example shown.
3x2 + 2x
2x2 − 5x + 3
6x
Example: -4x2 + 9
This polynomial expression is a quadratic binomial, with a coefficient of -4 on the quadratic term, a constant term of 9, and no linear terms.
Answer:
1) [tex]3\cdot x^{2}+2\cdot x[/tex] - The polynomial expression is a second-grade binomial, with a coefficient of 3 on the second-grade monomial component and a coefficient of 2 on the first-grade monomial component.
2) [tex]2\cdot x^{2}-5\cdot x + 3[/tex] - The polynomial expression is a third-grade trinomial, with a coefficient of 2 on the second-grade monomial component, a coefficient of -5 on the first-grade monomial component and a coeffcient of 3 on the zero-grade monomial component.
3) [tex]6\cdot x[/tex] - The polynomial expression is a first-grade monomial, with a coefficient of 6 on the first grade monomial component.
Step-by-step explanation:
1) [tex]3\cdot x^{2}+2\cdot x[/tex] - The polynomial expression is a second-grade binomial, with a coefficient of 3 on the second-grade monomial component and a coefficient of 2 on the first-grade monomial component.
2) [tex]2\cdot x^{2}-5\cdot x + 3[/tex] - The polynomial expression is a third-grade trinomial, with a coefficient of 2 on the second-grade monomial component, a coefficient of -5 on the first-grade monomial component and a coeffcient of 3 on the zero-grade monomial component.
3) [tex]6\cdot x[/tex] - The polynomial expression is a first-grade monomial, with a coefficient of 6 on the first grade monomial component.
Answer:
3x2 + 2x
This polynomial expression is a quadratic binomial, with a coefficient of 3 on the quadratic term, a linear term with coefficient 2, and no constant.
2x2 − 5x + 3
This polynomial expression is a quadratic trinomial, with a coefficient of 2 on the quadratic term, a linear term with coefficient -5, and constant 3.
6x
This polynomial expression is a linear monomial with a coefficient of 6 on the linear term and no constant.
Step-by-step explanation:
plato answer
What’s the rate of 4.1(x+5)+1
Step-by-step explanation:
4.1(x+5)+1
= 4.1x + 20.5 + 1
= 4.1x + 21.5