Answer:
−7(4−1) = −21
14-28-7r= −7r−14
14 - 7r = 42= r=−4
Step-by-step explanation:
HELP! WORTH 25 POINTS. Which sets of ordered pairs represent functions from A to B? (Select all that apply.)
A = {0, 1, 2, 3} and B = {−2, −1, 0, 1, 2}
A. {(0, 2), (3, 0), (1, 1)}
B. {(0, 0), (1, 0), (2, 0), (3, 0)}
C. {(0, −1), (2, 2), (1, −2), (3, 0), (1, 1)}
D. {(0, 1), (1, −2), (2, 0), (3, 2)}
Answer:
C. {(0, −1), (2, 2), (1, −2), (3, 0), (1, 1)}
hope it helps you
I need help with this
A clothing store manager uses a 12 percent markup on the merchandise. At what price will he sell pants that were purchased for $40?
Answer:
$44.80
Step-by-step explanation:
A. 159000
B. 23000
C. 54896
D. 12387
Answer:
A
Step-by-step explanation:
plug 32 in for m and solve
Answer:
c
Step-by-step explanation:
AD=BD=CD FIND ANGLE BAC
Answer:
ANGLE BAC= 80°, hope it helps you thanks.
hello, can i please have help on this question.thank you
Answer:
y = 4x - 3
Step-by-step explanation:
The equation for a line is y = mx +c
We need to find m which is the gradient:
To do this pick any two coordinates on the line:
(1, 1) and (2, 5)
Next divide the difference of the y coordinates by the difference of the x coordinates:
5 - 1 / 2 - 1
= 4/1 = 4
so our gradient is 4
We'd write that as y = 4x + c
Next we need to find c which is the y-intercept
To do this just simply look for where the line crosses the y-axis
This is -3
So we'd write that as y = 4x - 3
Hope this helps :)
Answer:
y=4x-3
Step-by-step explanation:
it wewnt up 4
the baby value/y interseption was -3
hurry pls i don’t understand
Answer:
c is the answer ....
mark me brainliest
PLS HELP I RLY NEED IT
If the sin 30º = 1/2
then which statement is true? (6 points)
a. cos 150° = 0, because the cosine and sine are supplements
b. cos 60° = 0, because the cosine and sine are complements
c. cos 150° = 1, because the cosine and sine are supplements
d. cos 60° = 1/2, because the cosine and sine are complements
Because sine and cosine are complements, we will have that:
cos(60°) = 1/2.
Which statement is true?First, because cosine and sine are complements, we know that:
cos(x) = sin(x + 90°).
cos(90° - x) = sin(x).
We will use the second relation, with x = 30° we can write:
cos(90° - 30°) = sin(30°)
cos(60°) = sin(30°)
And we know that sin(30°) = 1/2
Then we also have cos(60°) = 1/2.
So the correct option is d.
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Answer:
D- cos 60° = 1/2, because the cosine and sine are complements
Step-by-step explanation:
Got it right on test:)
In this diagram, the measure of
Answer:
2x - 60 = 180
Step-by-step explanation:
Angles RQS and PQS form a linear pair, so they are supplementary.
The sum of their measure is 180°.
Both angle measures are unknow, so let's use x for the measure of <PQS.
The measure of angle RQS is 60° less than the measure of <RQS, so it is
x - 60
Now we add the measures and set the sum equal to 180.
x + x - 60 = 180
Combine like terms on the left side.
2x - 60 = 180
Answer: 2x - 60 = 180
please help!!
my problems are in the photo.
Answer:
x=10
y=11.66
Step-by-step explanation:
8^2+6^2=x^2 and then you take the root
Same goes for the second question
a^2+b^2=c^2
Which of the following scenarios represents a possible impulse purchase?
Tim budgets for his scooter and decides to purchase the scooter through a dealership offering 0% interest to first time buyers.
Tim purchases the scooter of his dream by financing the entire cost of the scooter with a high interest bank loan.
Tim researches interest rates on the purchase of a new scooter before deciding against making the purchase.
Tim researches interest rates on the purchase of a new scooter before deciding to make a purchase.
Answer:
Tim purchases the scooter of his dream by financing the entire cost of the scooter with a high interest bank loan.
Step-by-step explanation:
I had the same question and got it correct. Hope I helped. :)
Answer:
Tim purchases the scooter of his dream by financing the entire cost of the scooter with a high interest bank loan.
Step-by-step explanation:
He did not weigh all the assets
can someone please help me solve this?
Answer:
x=15
Step-by-step explanation:
side PQ =side QR
8x-27=4x+33
8x-4x=33+27
4x=60
x=60/4
x=15
1/3 x (15 + 6) = ??????????????
Answer:
10[tex]\frac{1}{3}[/tex]
Step-by-step explanation:
[tex]\frac{1}{3}[/tex]×(15+6)=
[tex]\frac{1}{3}[/tex]×(31)=
[tex]\frac{1}{3}[/tex]×[tex]\frac{31}{1}[/tex]
[tex]\frac{31}{3}[/tex]
10[tex]\frac{1}{3}[/tex]
3 time 4 divided by 6
Answer:
the awnse is 2 i hope i helped
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
3 x 4 / 6
3 x 4 = 12
12 / 6 = 2
PEMDAS
M - multiplication
D - division
Multiplication comes before division.
Write an equation in slope intercept form of the line that passes through the given points. (0 , -3) (1 , -1) (2, 1) ( 3, 3 )
Answer:
Step-by-step explanation:
Slope = (-1-(-3))/(1-0) = 2
y = 2(x+3) = 2x+6
Which of the following represents the factorization of the polynomial below? 2x² + 5x +3
Answer:
Correct Answer D.
a × c = 11, b = 10
10 × 1 = 10
10 + 1 = 11
Divide the ten and 1 by 2
(x = 2) (2x+1)
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
Find a quadratic polynomial with integer coefficients which has x = 2/9, ± SQRT23/9 as its real zeros.
Answer:
The quadratic polynomial with integer coefficients is [tex]y = 81\cdot x^{2}-36\cdot x -19[/tex].
Step-by-step explanation:
Statement is incorrectly written. Correct form is described below:
Find a quadratic polynomial with integer coefficients which has the following real zeros: [tex]x = \frac{2}{9}\pm \frac{\sqrt{23}}{9}[/tex].
Let be [tex]r_{1} = \frac{2}{9}+\frac{\sqrt{23}}{9}[/tex] and [tex]r_{2} = \frac{2}{9}-\frac{\sqrt{23}}{9}[/tex] roots of the quadratic function. By Algebra we know that:
[tex]y = (x-r_{1})\cdot (x-r_{2}) = x^{2}-(r_{1}+r_{2})\cdot x +r_{1}\cdot r_{2}[/tex] (1)
Then, the quadratic polynomial is:
[tex]y = x^{2}-\frac{4}{9}\cdot x -\frac{19}{81}[/tex]
[tex]y = 81\cdot x^{2}-36\cdot x -19[/tex]
The quadratic polynomial with integer coefficients is [tex]y = 81\cdot x^{2}-36\cdot x -19[/tex].
The trapezoid shown is divided into a right triangle and a rectangle.
Answer:
Step-by-step explanation:why is the trapezoid separated into a triangle and a rectangle
How do you do 5a) and 5b)????? Please help!!!!
Answer:
[tex]21.0 { { {1221220 = 223jn}^{n \: \: \: \: \: \: \: \: \: \: \: \: \tan( \beta \beta \beta \beta \beta \beta \pi\pi) } }^{2} }^{2} \times \frac{?}{?} [/tex]
Answer:
31° F and 67° F
Step-by-step explanation:
(a)
When t = 0 then
f(0) = 31 + [tex]\frac{0}{100}[/tex] = 31 + 0 = 31° F
(b)
When t = 10 , then
f(10) = 31 + [tex]\frac{40(10^3)}{10^3+100}[/tex] = 31 + [tex]\frac{40000}{1100}[/tex] = 31 + 36.36... ≈ 67° F
HURRY FAST PLEASEEE I NEED IT SOON
Answer: 2/7, 2 : 5, 2 to 5
Step-by-step explanation:
7 is the total
5 is white
2 is grey
2/7 is 2 out of 7 since 2 is grey
2 : 5 is 2 grey for 5 white
2 to 5 is the same thing as 2 : 5
Aubrey has a new art box in the shape of a rectangular rectangular prism. The box is 12 cm space, by 20cm, 5 cm the only thing in the art box is a new pink eraser with the dimensions shown below. What is the volume of the art box not taken up by the eraser?
Answer:
By an online search, I've found that the dimensions of the eraser are:
4cm by 2cm by 0.5cm
First, we need to remember that for a rectangular prism of length L, width W, and height H, the volume is:
V = L*W*H
We know that the measures of the box are:
12cm by 20cm by 5cm
Then we can define:
L = 12cm
W = 20cm
H = 5cm
Then the total volume of the box is:
V = 12cm*20cm*5cm = 1200 cm^3
For the eraser, we will have:
L = 4cm
W = 2cm
H = 0.5cm
Then the volume of the eraser is:
v = 4cm*2cm*0.5cm = 4 cm^3
The volume of the box that is not taken up by the eraser is equal to the difference between the volume of the box and the volume of the eraser.
Then:
Volume not taken by the eraser = V - v = 1200cm^3 - 4cm^3 = 1196cm^3
6x + 6y=-6
5x + y=-13
Answer:
(-3, 2)
x=-3, y=2
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation. and thats how you get your answer :)
The value of x is -3 and value of y is 2.
The given equations are:
6x + 6y=-6 ..(1)
5x + y=-13...(2)
From equation (2)
y=-13+5x..(3)
Plug in equation in equation (1):
6x + 6(-13+5x)=-6
6x-78+30x=-6
24x=-72
Divide both sides by 24:
x=-72/24
x=-3
Now put x=-3 in equation (2):
5(-3) + y = -13
-15 + y = -13
y = -13 + 15
y = 2
Hence, the value of x is -3 and value of y is 2.
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How do I solve this equation step by step?
Answer:
Step-by-step explanation:
answer=
5x+1=6
5x=6-1
5x=5
x=1
Square root of 1 is 1
Answer:
√5x+1 = 6
(√5x+1)2 = (6)2
5x+1 = 36
5x -35 = 0
Add 35 to both sides
5x = 35
Divide both sides by 5
solution is :
x = 7
Step-by-step explanation:
PLS HELP. I dont understand math
Answer:
a) 2 + 1 = 3
4 + 2 = 6
6 + 3 = 9
b) Yes
c) Yes, since you are adding b to two b, which results in 3b
Step-by-step explanation:
Hope that helps!
Find the area of the triangle shown
30 mm
14 mm
13 mm
(The figure is not to scale.)
The area of the triangle is ?
Answer:
91
Step-by-step explanation:
the formula for a triangle is base x height divided by 2
so the base is 13 and the height is 14
multiply 13 and 14 then divide by 2
13 x 14 = 182/2= 91
A rectangle has side lengths of (7.5a - 1.5b) cm, (3,5a + 4.5c) cm, and (6.5C + 2a) cm, and (8.50 -6.5c). Which expression represents the perimeter, in centimeters, of the
rectangle?
Answer:
Step-by-step explanation:
our lengths are:
7.5a-1.5b, 3.5a+4.5b, 6.5c+2a, 8.5-6.5c
P=7.5a+3.5a+2a-1.5b+4.5b+6.5c-6.5c+8.5=16a+3b+8.5
For the line above, is the slope positive or negative? *
Answer:
positive
Step-by-step explanation:
si no saben no contesten
what is 3/8 divided by 4/5
The answer you are looking for is 15/32.
To find this answer, you must first find the Least Common Denominator. The least common denominator of these 2 fractions can be found by simply multiplying the 2 given denominators together. 5 * 8 = 40.
Now that you found the LCD, you can start to solve the equation. To get 40 as the denominator for 3/8, you multiply the fraction by 5/5.
3/8 * 5/5 = 15/40.
To get 40 as the denominator for 4/5, you multiply it by 8/8. 4/5 * 8/8 = 32/40.
Finally, you divide 15/40 by 32/40. The denominators cancel out, so the numerator becomes 15 and the denominator now becomes 32.
So your answer is 15/32 (which cannotbe simplified)
I hope this helps!!
