Step-by-step explanation:
y=-x+4
y=x-2
adding both the equations we get
2y=2
:. y=1
and putting the value of y in equation first we get
x=3
PLEASE HELP! Enter answer/code
* show me how you got it and no random answers*
Answer:
a+b
Step-by-step explanation:
you have to multiply
7(3a-2b) 5(3b-4a)
7x3=21 5x3=15
7x2=14 5x4=20
(21a-14b) (15b-20a)
add them
21a-14b+15b-20a
21a-20a=1a
-14b+15b=1b
1a+1b
if a man spends 70% of his income what percent does he save
Answer:
30%
Step-by-step explanation:
Let's say he has 100% income
Spends 70%
Remaining=100-70=30%
Step-by-step explanation:
total percentage = 100%
total percentage spend = 70%
remaining percentage = 100% — 70% = 30%
PLEASE HELP. (Will Mark Brainliest)
Answer:
Step-by-step explanation:
17/60 = 0.2833333333..... 3 repeating
25/60 = .025 terminating
31/44 = 0.7045454545..... 45 repeating
54/72 = 0.75 terminating
Ahmad said that the volume of cone A is half the volume of cone B? Do you agree? Explain
Answer:
Yes, I agree
Step-by-step explanation:
See attachments for cone
Cone A
[tex]h = 2r[/tex]
Cone B
R = 2r
[tex]h=r[/tex]
The volume of a cone is
[tex]V = \frac{1}{3}\pi r^2h[/tex]
For cone A, we have:
[tex]V = \frac{1}{3}\pi r^2*2r[/tex]
[tex]V_A = \frac{2}{3}\pi r^3[/tex]
For cone B, we have:
[tex]V = \frac{1}{3}\pi *(2r)^2 * r[/tex]
[tex]V = \frac{1}{3}\pi *4r^2 * r[/tex]
[tex]V_B = \frac{4}{3}\pi r^3[/tex]
So, we have:
[tex]V_B = 2 * \frac{2}{3}\pi r^3[/tex]
Substitute [tex]V_A = \frac{2}{3}\pi r^3[/tex]
[tex]V_B = 2 * V_A[/tex]
Make VA the subject
[tex]V_A = \frac{1}{2}V_B[/tex]
Hence, I agree with Ahmad
maths help pls.......
Answer: (C) 308 cm^2
Step-by-step explanation: Flat surface area is the surface area that is not curved; in this case, it would be the two circular bases. The height is arbitrary as the height is not needed to calculate the area of the bases. The formula for the area of circular bases is πr^2. Let's plug the given values into the formula. (22/7)(7)^2=(22/7)(49)=154. 154 cm^2 is the area of one base. To find the area of both bases, simply multiply the area of one base by two. 154*2 is 308, therefore the answer is (C) 308 cm^2.
Which statement are true of functions? (All that applies)
A. All function have a dependent variable
B. All function have a independent variable
C. The range of a function includes its domain
D. A vertical line is an example of a functional relationship
E. A horizontal line is an example of a functional relationship
F. Each output value of a function can correspond to only one input value
A and B and E.And sorry if I get it wrong.
Which of the following statements are true?
Answer:
I am not 100% sure but like 75 % sure its A,c , and e
Step-by-step explanation:
882.3529411764706 to the nearest whole number
Answer:
882
Step-by-step explanation:
If it's over .5 you round up, if It's .4 or under you round down.
5.5 rounded to the nearest whole number is 6.
5.4 rounded to the nearest wholee number is 5.
Debbie has 12 blooms on her lemon tree on the first day she thinks to check it. Each day after that, she notices 3 additional blooms. How many blooms does she have after one week?
Answer:
33 blooms
Step-by-step explanation:
This can be set up by an equation. x represents the number of days and y represents the number of corresponding blooms. y = 3x + 12 is the equation, as 3 is the rate of change and 12 is the initial amount. One week is 7 days, so 7 can be plugged in for x. 21 + 12 = 33, so after one week, Debbie has 33 blooms.
Help and explain pls and thankyouuuuuu
Answer:
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9514 1404 393
Answer:
(d) -3
Step-by-step explanation:
Put the number into the expression and do the arithmetic.
f(g(-2)) = f(-2-3) = f(-5) = 2(-5) +7 = -10 +7
f(g(-2)) = -3
no links please, i cant find the answer for q b) ii)
Answer:
-k
Step-by-step explanation:
Cos(140)=cos(180-40)=-cos(40)=-k
Answer:
Step-by-step explanation:
Sin (90 - A) = Cos A
Cos (90 + A) = -Sin A
Sin 50 = Sin (90 - 40)
= Cos 40
= k
Cos 140 = Cos (90 + 50)
= - Sin 50
= (- k)
For what values of x is the expression below defined?
x +3 + x1 - x
O A. 35xs1
O B. 3 > XS-1
O C. 3 >x>1
O D. -3 sx< 1
Answer:
D. - 3 ≤ x < 1
Step-by-step explanation:
The numerator cannot be the square root of a neg. no.
So, x + 3 ≥ 0 or x ≥ -3
The denominator cannot be a neg. no. or 0.
So, 1 - x > 0
1 > x or x < 1
So, altogether - 3 ≤ x < 1
Therefore, D is the correct answer.
HOPE IT MAY HELP YOU
PLEASE MARK AS BRAINLIST
In ΔMNO, m∠M = 57° and m∠N = 75°. Which list has the sides of ΔMNO in order from shortest to longest?
Answer:
B. MN, NO, OM
Step-by-step explanation:
Recall: In any triangle, the sides and the angles are related in the following way:
*The largest angle and the longest side are opposite each other
*The medium angle and the mid-sized side are opposite each other
*The smallest angle and the shortest side are opposite each other
In ∆MNO, we are given that
m<M = 57° which is opposite to side NO
m<N = 75° which is opposite to side OM
m<O = 180° - (75° + 57°) (sum of triangle)
m<O = 48° which is opposite to side MN
Therefore, we can write the order of shortest to longest side in relation to their opposite angles as follows:
MN, NO, OM
Please help me!! Perimeter: about ______ ft squared
Area: about ________ ft squared
Answer:
55.1 ft ; 236.7 ft^2
Step-by-step explanation:
radius = 7.5 ft
Perimeter of the semicircles = 2 * radius * pi = 2 * 7.5 * pi = 47,12389 ft
Perimeter of the rectangle = 4 * 2 = 8 ft
Total perimeter = 55,12389 ft
Area of the semicircles = radius^2 * pi = 7.5^2 * pi = 176,714587 ft^2
Area of the rectangle = 4 * 15 = 60 ft^2
Total area = 236,714587 ft^2
The adjacent figure HOPE is a parallelogram. Find the angle measures x, y and z. State the properties you use to find them.
Answer:
y=40°
Z + Y = 70°
z. = 70°-40°
z. = 30°
POH=X
=180-70
=110°
A circular cardboard piece is needed for the base of a volcano model. The volcano is 46 centimeters tall and has a volume of 800 cubic centimeters. Which equation can be used to find the area of the circular base? 46 = one-third (B) squared (800) 46 = one-third (B) (800) 800 = one-third (B squared) (46) 800 = one-third (B) (46)
Answer:
800 = 1/3(B)(46)
Step-by-step explanation:
Volume of a cone is [tex]1/3pir^2h[/tex]
we can set up an equation where V = 1/3pir^2h
Knowns :
V = 800
h = 46
Plug the knowns into the equation
800 = 1/3(pir^2)(46)
pir^2 is the area of a circle, which in this case is B
hope this helps
The equation which can be used to find the area of the circular base is 800 = 1/3(πr²)(46)
What is Three dimensional shape?a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.
Given that circular cardboard piece is needed for the base of a volcano model.
The volcano is 46 centimeters tall and has a volume of 800 cubic centimeters.
We have to find the equation which can be used to find the area of the circular base.
Volume of a cone is 1/3πr²h
V= 1/3πr²h
Plug in the values of volume and height in the above formula
V = 800
h = 46
800 = 1/3(πr²)(46)
Hence, the equation which can be used to find the area of the circular base is 800 = 1/3(πr²)(46)
To learn more on Three dimensional figure click:
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how do i solve this
[tex] {x}^{6} [/tex]
Answer:
You did give anything to solve
Step-by-step explanation:
x⁶ is just a single term
If you had posted an equation like
x⁶ = 64
Take the cube root of both side
x² = 4
Take the square root of both sides
x = ± 2
Solve x- 7.5 = 4.1 for x.
Answer: x = 11.6
Step-by-step explanation: 11.6 - 7.5 = 4.1
What are the coordinates of R on segments QS such that the ratio is 1:2. Q(-6,2) S(5,6)
Given:
The endpoints of a line segment QS are Q(-6,2) and S(5,6).
Point R divides the line segment QS in 1:2.
To find:
The coordinates of point R.
Solution:
Section formula: If a point divides a line segment in m:n, then the coordinates of that point are:
[tex]Point=\left(\dfrac{mx_2+nx_1}{m+n},\dfrac{my_2+ny_1}{m+n}\right)[/tex]
It is given that the endpoints of a line segment QS are Q(-6,2), S(5,6) and point R divides the line segment QS in 1:2. So, the coordinate of point R are:
[tex]R=\left(\dfrac{1(5)+2(-6)}{1+2},\dfrac{1(6)+2(2)}{1+2}\right)[/tex]
[tex]R=\left(\dfrac{5-12}{3},\dfrac{6+4}{3}\right)[/tex]
[tex]R=\left(\dfrac{-7}{3},\dfrac{10}{3}\right)[/tex]
Therefore, the coordinates of point R are [tex]\left(\dfrac{-7}{3},\dfrac{10}{3}\right)[/tex].
An archery video game has an auto-aim feature.
An archer wants to hit point T but his bow is aimed at point A, which is 15 m away from T as shown. The
auto-aim feature also knows that the archer is 60 m away from T and 50 m away from A
How many degrees will the auto-aim feature adjust the shot?
Do not round during your calculations. Round your final answer to the nearest degree
Answer:12
Step-by-step explanation:
Based on the calculations, the number of degrees that the auto-aim feature would adjust the shot is 12°.
How to calculate the angle formed?Based on the triangle attached in the image above, we can deduce the following parameters:
Side AT = 15 m.
Side CA = 50 m.
Side CT = 60 m.
In this scenario, we would apply the cosine trigonometry function by using this mathematical expression:
AT² = CA² + CT² - 2(CA)(CT)COSθ
15² = 50² + 60² - 2(50)(60)COSθ
225 = 2500 + 3600 - 6000COSθ
6000COSθ = 6100 - 225
6000COSθ = 5875
θ = COS⁻¹(5875/6000)
θ = COS⁻¹0.9792
θ = 11.72 ≈ 12°
Read more on cosine function here: https://brainly.com/question/4599903
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I also need help with this
Answer:
7 strips
Step-by-step explanation:
One way we can solve this is through guess and check. Let's start with 4 strips. If Joe's grandma makes 4 strips, she will have 0.75*4 = 3.00 yards of fabric. That's a really low amount of fabric. Let's double that to 8, where Joe's grandma would need 0.75*8 = 6.00 yards of fabric. That's really close! Let's remove one strip. 0.75*7 = 5.25 yards of fabric. Perfect! Joe's grandma can cut exactly 7 strips
Write an absolute value function that shifted 2
units right.
HELPPPP
Answer: (a)
Step-by-step explanation:
Suppose the original function is [tex]y=\left | x \right |[/tex]
To shift it 2 units right, replace x by x-2 such that
[tex]\Rightarrow x-2=0\\\Rightarrow x=2[/tex]
So, the function becomes [tex]y=\left | x -2\right |[/tex]
This is due for Tuesday please help.
Answer:
n=0.05
0.00036km
Step-by-step explanation:
a)
20:1
1:0.05
n=0.05
b)
1:25000
0.00036:9
0.00036km
Please help !!!!!!!!
Answer:
table:
x = -2 , y = 5
x = 0 , y = -3
x = 1 , y = -4
x = 3, y = 0
b
i. line A
ii. y = -1,5
iii. x = -1.25
Step-by-step explanation:
as from the table
Step-by-step explanation:
the last one takes allot of steps but I tried those
i need help again u guys
Answer:
x = -3
Step-by-step explanation:
HELP THIS IS MY LAST ASSIGNMENT FOR MATH
Answer:
Decompose each number:
\begin{gathered}6) 90 = 9 \times 10\\\\7) 40 = 4 \times 10\\\\8)890 = 89 \times 10\\\\9) 300 = 3 \times 100\\\\10) 7000 = 7 \times 1000\\\\11)3700 = 37 \times 100\\\\\end{gathered}
6)90=9×10
7)40=4×10
8)890=89×10
9)300=3×100
10)7000=7×1000
11)3700=37×100
Correct the error. Write the correct decomposition:
\begin{gathered}12) 560 = 56 \times 10\\\\13) 4300 = 43 \times 100\\\\14) 6000 = 60 \times 100 \ \ or \ \ 6 \times 1000\end{gathered}
12)560=56×10
13)4300=43×100
14)6000=60×100 or 6×1000
A bag contains 9 red, 6 green, 3 blue, and 2 yellow balls of the same size. A student chooses a colour and then draws a ball from the bag. If she draws a ball of her choice of colour she wins, if not the teacher wins. Who do you think will be the winner after 24 rounds, the student or the teacher
Answer:
the teacher will win becasue there are less numbers of colors to choose from one of the catagories then there are in total.
Step-by-step explanation:
Here's a little something that will tease your brain. I doubt someone will answer this
Answer:
500ml orange juice is the most cost effective
Which of the following statements is true?
A. All trapezoids are parallelograms.
B. All rectangles are rhombuses.
C. All rhombuses are rectangles.
D. All squares are parallelograms.
Answer:
D. All squares are parallelograms. (Correct)
Answer please ill apprciate it
Answer:
is B. 75
Step-by-step explanation:
x+26=101
x=101-26
:. x=75
[tex]\huge\boxed{\fcolorbox{lime}{yellow}{ B. \:75}}[/tex]
[tex]\sf \bf {\boxed {\mathbb {STEP-BY-STEP\:\:EXPLANATION:}}}[/tex]
[tex]x + 26 = 101[/tex]
[tex]➺ \: x = 101 - 26[/tex]
[tex]➺ \: x = 75[/tex]
Therefore, the value of [tex]x[/tex] is 75.
[tex]\sf \bf {\boxed {\mathbb {TO\:VERIFY :}}}[/tex]
[tex]➺ \: x + 26 = 101[/tex]
[tex]➺ \: 75 + 26 = 101[/tex]
[tex]➺ \: 101 = 101[/tex]
➺ L. H. S. = R. H. S.
Hence verified.
[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}[/tex]