Answer:
Step-by-step explanation:
i need help with these asap i will award brainleast for whoever gets it right *ONLY ANSWER IF U KNOW PLEASE*
Answer:
Q1) a = 60
Q2) A = 64
Q3 = A =
Fill in the blanks below in order to justify whether or not the mapping shown
represents a function.
Set A: 1,2,9
Set B: 0,4,6,5
Answer:
wheres the picture?
Step-by-step explanation:
Please help
Due asap SHOW a workings please
Answer:
A
Step-by-step explanation:
1) first there are a few rules we need to know:
a) the sum of any two sides of a triangle is always larger than the 3rd side
b) the difference between any two sides of a triangle is always smaller than the 3rd side;
hence,
3+4=7
4-3=1
triangle 3,4,5 follows all the rules,
triangle 13,2,11:
11+2=13
the sum of any two sides must always be GREATER than the 3rd side-so this is not an option
triangle 10,4,5
5+4=9
9<10
not an option
−2(x + 9) + 25 = 14 − 3x
(step by step pls)
Answer:
-2x+18+25=14-3x
collect like terms
-2x+3x=14-25-18
x=29
5(x-2)= 3(x+4)
What is the answer to this equation?
Answer:
x = 11
Step-by-step explanation:
5x-10=3x+12
5x-3x=12+10
2x=22
x =11
PLEASE PLEASE HOW MANY TIMES CAN I SAY PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer like
Answer 1.___________
Answer 2.___________
Answer 3.___________
Answer 4.___________
Answer 5.___________
HELP ME PLS...................TY
Answer:
E
Step-by-step explanation:
the only one where all the pieces of the equation have the same signs
tan30° + Cos30°/ tan30° . cos30°
Answer:
tan30° + Cos30°/ tan30° . cos30°
1/√3+√3/2/(1/√3)×√3/2
1/√3+3√3/4
helpppppppppppppppp i dont know this
Answer:
f(- 3) = - 16
Step-by-step explanation:
To evaluate f(- 3) with x = - 3 in the interval x ≤ - 2, then
f(- 3) = 5x - 1 = 5(- 3) - 1 = - 15 - 1 = - 16
Line k is parallel to line l. Lines k and l are parallel. Lines m and n intersect to form 2 triangles. The top triangle has angles 1, 2, 3 and the bottom triangle has angles 4, 5, 6. Which angle is congruent to Angle 4? Angle 1 Angle 2 Angle 5
Answer:The line that is congruent to angle 4 is angle 1
hope this helped :)
Answer:
a
Step-by-step explanation:
Marcel and Floyd are playing games at an arcade. Marcel has $8.25 and is only playing $0.25 games. Floyd has $9.75 and is only playing $0.75 games. Jorge wants to find the number of games after which Marcel and Floyd will have the same amount of money remaining. Jorge’s work is shown below.
Let x = the number of games played.
Equation: 8.25 minus 0.25 x = 9.75 minus 0.75 x. Step 1: negative 1.50 minus 0.25 x = negative 0.75 x. Step 2: negative 1.50 = 0.50 x. Step 3: negative 3 = x.
Jorge knows his answer is incorrect because it does not make sense to have a negative number of games. What is Jorge’s error?
The variable x should represent the amount of money left.
From Step 1 to Step 2, Jorge did not add 0.25x correctly to both sides.
The equation should have sums on both sides.
From Step 2 to Step 3, Jorge should have subtracted 0.50x from both sides.
Answer:
The variable x should represent the amount of money left.
Step-by-step explanation:
im not sure but this one makes sense
Answer:
The Answer to this problem is (A)
St)ep-by-step explanation:
The variable x should represent the amount of money left.
Samantha buys a shirt that costs $28.50. She uses a
30% coupon. What will Samantha pay for the shirt?
Kevin bought a used guitar at a garage sale
for $150. He fixed it up and sold it for
$200. What was the approximate percent of
increase?
Answer:
34%
Step-by-step explanation:
Answer
33.3%
Step-by-step explanation
Which is the better buy on potatoes?
3 lbs. for $.90
5 lbs. for $1.60
Answer:
3 pounds for 90 cents.
Step-by-step explanation:
The 5 pound bag costs 32 cents a pound
The 3 pound bag is 30 cents a pound
Quick whoever gives the right answer gets brainliest
Answer:
The independent variable (IV) is the amount of hamburgers
Step-by-step explanation:
The amount of hamburgers influence the sale amount.
Solve the quadratic equation 3x^2-9x+1=0.
Please help.
Answer:
Exact Form-9+√69÷6
Decimal form-2.88443731
Step-by-step explanation:
Please answer this question its easy.
Answer:
ok if its wrong then dont ask on period
Step-by-step explanation:
What is the product?
Answer:x=45.6
Step-by-step explanation:
Answer:
(x^2 - 5x^2 + 4x) / 2x + 8
Step-by-step explanation:
(x^2 - 16) / 2x + 8 * (x^3 - 2x^2 + x) / (x^2 + 3x -4)
(x^5 - 2x^4 - 15x^3 + 32x^2 -16x) / 2(x - 1)(x + 4)(x + 4)
x(x-1)(x-1)(x+4)(x-4) / 2(x - 1)(x + 4)(x + 4)
(x^3 -5x^2 +4x) / 2x + 8
I need help what is the diameter of this circle?
Answer:
14cm
Step-by-step explanation:
the diameter is 2x the radius
A subway car travels at a rate of 32 meters per second. How far does it travel in 16 seconds? Use d= r x t *
Answer:
distance= 16×32
d= 512
got it?
PLEASE HELP ITS IMPORTANT omll
Answer:
F(x)= 3x-4
Step-by-step explanation:
To find the slope use the formula y2-y1
x2-x1
(2,2)
(0,-4)
-4-2 = -6 = 3x
0-2 -2
What is the value of y? Show you’re work
Answer:
Y = 32
Step-by-step explanation:
First traingle is 180 degrees
So 180 - 52 = 128
Then 2y + 2y = 4y
So now 128/4 = 32
If you wanna checl ur answer just put the number in and check if it equal to 180
Please can i get help
Answer:
[tex]\frac{1}{3}x+\frac{1}{2}[/tex]
Step-by-step explanation:
hope this helps :)
Help me pleasee .. the question is in the picture.. please and thank you
Answer:
y = -4x+5
Step-by-step explanation:
Goes up the y-axis by +5, then, remember: rise over run for slope. In this case, you go down 4 and to the right 1, so -4/1 which is -4.
Solve for a missing factor,
1. ____ x 10 = 320
2. 10 x 17 = ____
3. ____ tens = 290
Answer:
1. 32
2. 170
3. 29
Step-by-step explanation:
1. is just 10 divided by 320, which gives you 32
2. is 10 times 17 which is 170
3. you need 29 tens to get 290.
If the camper leader has 12 campers, how much does she spend on books?
Answer:
bro how she got 12 campers
Step-by-step explanation:
helpp ill mark u as brain list
Answer:
6
Step-by-step explanation: if im wrong then sorry i couldnt really see
Answer:
They are each one off
Step-by-step explanation:
Example #2: Solve for d:
cd = 10
Answer:
Step-by-step explanation:
All you can do is solve for d in terms of C.
Divide both sides by c
cd/c = 10 / c
The c s cancel.
d = 10/c
Graph the equation y = -x^2+ 8x – 15 on the accompanying set of axes. You must plot 5 points including the roots and the vertex. Using the graph, determine the roots of the equation –x^2 + 8x – 15 = 0.
Answer:
Graph below
Step-by-step explanation:
Graph of the Quadratic Function
We are given the function:
[tex]y=f(x)=-x^2+8x-15[/tex]
Select 5 values of x={2,3,4,5,6}
And calculate the corresponding values of y:
[tex]f(2)=-2^2+8*2-15=-4+16-15=-3[/tex]
[tex]f(3)=-3^2+8*3-15=-9+24-15=0[/tex]
[tex]f(4)=-4^2+8*4-15=-16+32-15=1[/tex]
[tex]f(5)=-5^2+8*5-15=-25+40-15=0[/tex]
[tex]f(6)=-6^2+8*6-15=-36+48-15=-3[/tex]
We have obtained the points
(2,-3) (3,0) (4,1) (5,0) (6,-3)
Now we plot them in the graph below.
It can be noted three remarkable points:
The vertex is located at (4,1)The roots are located at (3,0) and (5,0)The roots of the equation
[tex]-x^2+8x-15=0[/tex]
Are x=3 and x=5.
lead has a density of 11.35g/cm'3. a lead ball weighs about 2kg. what is the radius of this ball
Answer:
The radius of the ball is 3.48 cm
Step-by-step explanation:
Density
The density of a substance is the mass per unit volume. The density varies with temperature and pressure.
The formula to calculate the density of a substance of mass (m) and volume (V) is:
[tex]\displaystyle \rho=\frac{m}{V}[/tex]
The density of lead is \rho=11.35\ g/cm^3 and the mass of a ball of lead is m=2 kg=2,000 g. We can calculate the volume by solving for V:
[tex]\displaystyle V=\frac{m}{\rho}[/tex]
[tex]\displaystyle V=\frac{2000\ g}{11.35\ g/cm^3}[/tex]
[tex]V=176.2115\ cm^3[/tex]
Since the shape of the object is a sphere, and the volume of a sphere of radius r is:
[tex]\displaystyle V=\frac{4}{3}\cdot \pi\cdot r^3[/tex]
We can solve for r and obtain:
[tex]\displaystyle r=\sqrt[3]{\frac{3V}{4\pi}}[/tex]
Substituting:
[tex]\displaystyle r=\sqrt[3]{\frac{3*176.2115}{4\pi}}[/tex]
[tex]\displaystyle r=\sqrt[3]{42.0674}[/tex]
[tex]\boxed{r=3.48\ cm}[/tex]
The radius of the ball is 3.48 cm
