Answer:
Keiko 12 + Juan 51 + Tony 17 = $80
Step-by-step explanation:
K + J + T = 80
K=T-5
J=3T
T=T
T-5 + 3T + T = 80
5T -5 = 80 --> 5T = 85 --> T = 17
now that u know T=17, substitute the value of T to find K and J
K=(17)-5 = $12
J=3(17) = $51
T= $17
f(-5)= ? Anybody know it's from khan academy
Which function has a range of {y|y ≤ 5}?
f(x) = (x – 4)2 + 5
f(x) = –(x – 4)2 + 5
f(x) = (x – 5)2 + 4
f(x) = –(x – 5)2 + 4
SOMEONE HELP! I know the answer I just need to show the work.
What is the measure of
angle b?
Answer: 36
okay so
117° + angle a = 180° (supplementary angle)
angle a = 180 - 117
= 63°
then angle a + angle b + 81° = 180° ( angle sum property)
so... 63° + angle b + 81° = 180
144 + angle b = 180°
angle b = 180 - 144
= 36°
hope this helps.
Help I need help ON THISSSS
Answer:
ms girll i think you multiply
Answer:
3. 147 [tex]ft^{3}[/tex] 4. [tex]\frac{160}{3} \pi[/tex] [tex]ft^{3}[/tex]
Step-by-step explanation:
3. Volume of a square pyramid = [tex](base.edge.length)^{2}[/tex] × [tex]\frac{height}{3}[/tex]
Variables:
V = volume
x = base edge length
h = height
V = [tex]x^{2}[/tex] × [tex]\frac{h}{3}[/tex]
x = 7 ft
h = 9 ft
Plug the values in the equation:
V = [tex]7^{2}[/tex] × [tex]\frac{9}{3}[/tex]
V = 49 × 3
V = 147 [tex]ft^{3}[/tex]
4. Volume of cone = [tex]\pi r^{2} \frac{h}{3}[/tex]
Variables:
V = volume
r = radius
h = height
V = [tex]\pi r^{2} \frac{h}{3}[/tex]
r = 8ft /2 = 4 ft (radius is half of the diameter)
h = 10 ft
V = [tex]\pi 4^{2} \frac{10}{3}[/tex]
V = [tex]\pi[/tex] × 16 × [tex]\frac{10}{3}[/tex]
V = [tex]\frac{160}{3} \pi[/tex] [tex]ft^{3}[/tex]
Which of the following numbers can be expressed as repeating decimals? (5 points)
3 over 7 , 2 over 5 , 3 over 4 , 2 over 9 How can 38 over 6 be expressed as a decimal?
9514 1404 393
Answer:
Repeating decimals:
3/72/938/6 = 6.3_3 (repeating 3)
Step-by-step explanation:
[tex]\dfrac{3}{7}=0.\overline{428571} \quad\text{repea}\text{ting decimal}\\\\\dfrac{2}{5}=0.4\\\\\dfrac{3}{4}=0.75\\\\\dfrac{2}{9}=0.\overline{2}\quad\text{repea}\text{ting decimal}[/tex]
The improper fraction 38/6 = 19/3 = 6 1/3. As a decimal, this is ...
[tex]\dfrac{19}{3}=6.\overline{3}\quad\text{repea}\text{ting decimal}[/tex]
_____
The repeating part of a decimal fraction is conventionally written with an overbar, as shown in the typeset content above. In plain text, it is sometimes written with an underscore preceding the repeating digits.
What is the slope of 5y = 160 + 9x?
Please show your work
Answer
M=9/5
Step-by-step explanation:
{Slope-Intercept form of}\:5y=160+9x:\quad y=\frac{9}{5}x+32
Sorry if I write confusing
9/5x+32
{Axis\:interception\:points\:of}\:\frac{9}{5}x+32:{X\:Intercepts}:\:\left(-\frac{160}{9},\:0\right),\:\ {Y\:Intercepts}:\:\left(0,\:32\right)
=
5x-160/9=+ the:\equation:\before=
9/5x+32= .
m=9/5
Explain what each variable in the linear equation y=mx+b represents.
y represents _________________
m represents ________________
x represents _________________
b represents _________________
Answer:
y = dependent variable
m = slope of a line
x = independent variable
b = y-intercept
How many solutions this equation?
3x+2y=6
9x+6y=18
Answer:
1
Step-by-step explanation:
What is the Greatest Common Factor of 48r^2-52r ?
Step-by-step explanation:
4r is the greatest common factor
Help!!! Is 2.33 the right answer? If not please say the correct answer and explain, I will mark you brainlist after. Also have a great rest of your day everyone!!!!!!
Answer:
The answer is 21.
Step-by-step explanation:
If the board was 7 feet long and each piece was cut into 1/3 of a foot, that means that there are actually 21 pieces
I put a picture if it helps...
Describe the transformation that takes f(x) = x+1 to g(x) = -x+4.
Answer:
Reflecting over the x-axis, vertical movement up 3 units.
General Formulas and Concepts:
Algebra I
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptTransformations of graphs
Step-by-step explanation:
Step 1: Define
f(x) = x + 1
g(x) = -x + 4
Step 2: Define
Multiplying -1 to x flips it over the x-axis, or known as a reflection. There is no vertical shrink/stretch.
To get to 1 to 4, we add 3. That means we will be moving the graph up 3 units.
Answer:
The sign on the 'x' changes, this implies a reflection.
g(x) = -f(x) = -(x+1) = -x -1
Now apply a vertical translation 'up 5' to f(x)
g(x) = -f(x) + 5 = (-x-1) +5 = -x +4
Hope this helps! <3
three numbers have a sum of 112. The first number is twice the second, and the third number is twice the first. What is the smallest of the three numbers?
Answer:
The second number is the smallest of the three numbers with
value n = 16.
Step-by-step explanation:
Let n represent the second number, then the first number is 2n and the third number is 4n.
so
[tex]n+2n+4n=112[/tex]
Solving for n
[tex]n+2n+4n=112[/tex]
[tex]7n=112[/tex]
[tex]\frac{7n}{7}=\frac{112}{7}[/tex]
[tex]n=16[/tex]
As n = 16 is the second number.
The first number = 2n = 2(16) = 32
The third number = 4n = 4(16) = 64
Therefore, the second number is the smallest of the three numbers with value n = 16.
Which value of n is a solution for both inequalities below?
2(n +5) > 4 and 3(n-1) <3
A -7
B -3
C 2
D 4
ENone of the above
Answer:
the answer for the question is c 2
(3+3x)+(2x-8) whats the answer?
Answer:
5x-5 is the answer.
Step-by-step explanation:
Answer:
5x-5
Step-by-step explanation:
the equation y + 1 = 5(x + 6) equivalent to
Step-by-step explanation:
y + 1 = 5(x + 6)
y + 1 = 5x +30
y = 5x +30 -1
y = 5x + 29
If x = 3 which number line shows the value of |x|
Answer:
3rd one
Step-by-step explanation:
absolute value and distance are always positive
Answer: C (or) 3rd one
plus I got took test got it right
Step-by-step explanation:
absolute value and distance are always positive
A dishwasher is priced at $685. There is an 8% sales tax rate. What is the sales tax of the dishwasher in dollars and cents?
Answer:
The tax would be $54.80 !
Step-by-step explanation:
To do the problem you have to cross multiply and divide.
[tex]\frac{x}{685} = \frac{8}{100}[/tex]
685 x 8 = 5480
5480 / 100 = 54.8
In right triangle GHI, ∠H is a right angle, m∠I=42∘, and GH=11.
sin42∘≈0.67
cos42∘≈0.74
tan42∘≈0.90
What is the measurement of HI?
If necessary, round your answer to two decimal places, like this: 42.53
Answer:
12.22
Step-by-step explanation:
θ = 42°
We solve using Tangent rule of trigonometry.
tan θ = Opposite/Adjacent
GH = Opposite = 11
HI = Adjacent = ?
From the question
tan42∘≈0.90
Hence:
0.90 = 11/HI
HI = 11/0.90
HI = 12.222222222
Approximately = 12.22
−16−9 please help me
Answer: -25
Step-by-step explanation:
I'll mark you the brainiest if you get this right
thx x
Answer: 169
Step-by-step explanation:
52 divided by 4 is 13 so 13 times 13 is 169
Answer:
The answer is 169cm2
Step-by-step explanation:
Divide 52 by 4 to get the sides
One side is 13
Then, multiply 13 by itself to get the area
The area is 169cm2
Solve each multi-step linear equation
12-6x=-8x+7+7x
Answer:
1
Step-by-step explanation:
12-6x=-8x+7+7x
-6x+8x-7x=7-12
-5x=-5
X=5/5
X=1
So the value of X is 1
a washer and dryer cost $657 combined. The washer costs $43 less than the dryer. What's the cost of the dryer?
Answer:
The answer is $614
w + d = 657
657 divided by 2 is 328.5
328.5 - 43 285.5 (that would be washer)
Answer: 657 - 285.5 = 371.5
that should be right!(:
Please answer correctly !!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!
Answer:
14
Step-by-step explanation:
(9x + 10)° = 136°
9x + 10 = 136
9x = 126
x = 14
⚠️please help done today⚠️
(03.01)
Which of the sums below can be expressed as 6(3 + 9)? (3 points)
O 18 + 54
O 18 + 9
O 9 + 15
O 6+54
Answer:
It would be the first answer choice, 18+54
Step-by-step explanation:
6(3+9
6x3=18
6x9=54
18+54 would be the equation.
Please pick me for brainliest
Answer:
a
Step-by-step explanation:
-14 7/8 ÷ 1 3/4 ÷ -1/2
Answer:
4.25
Step-by-step explanation:
Answer:
The answer is 17.
Step-by-step explanation:
-14 7/8 divided by 1 3/4 is -8 1/2. -8 1/2 divided by - 1/2 is 17.
Rewrite the sum of 12 and 8 as a product of the LCM of the two numbers and another sum.
Answer:
2 or 4
Step-by-step explanation:
an express plane is travelling at 50 km/h. How far does it go in 1 day?.
Answer:
1200km/h
Step-by-step explanation:
in one hour it covers 50km
therefore because a day has 24hrs
we multiply
=50x24
=1200km/h
Adrian is going to the store and needs milk he needs 4 bottles of milk he has 14$ and each cost 4$ does he have enough money
Step-by-step explanation:
No because he had 14 and needs 16
A polynomial function is represented by the data in the table.
x = -5, -4, -3, -2, -1
f(x) = -15, -6, 1, 6, 9
Choose the function represented by the data.
f(x) = 6x + 15
f(x) = −6x − 45
f(x) = x2 − 40
f(x) = −x2 + 10
Answer:
Step-by-step explanation:
F(x)=6x+15
f(x)=6(-15)+15
f(x)=-75
Answer:
D f(x)=-x2+10
Step-by-step explanation:
did on edge
Which set of numbers is included as part of the solution set of the compound inequality
x < 6 or x > 10?
{–7, –1.7, 6.1, 10}
{–3, 4.5, 13.6, 19}
{0, 6, 9.8, 14}
{8.5, 9.1}
Answer:B
Step-by-step explanation:
On Edg
Answer: B on edg
Step-by-step explanation: