Answer:
A=20
Step-by-step explanation:
a+b+c=180
A+A+40+5A=180
7A+40=180
7A=140
/7
A=20
20+(20+40)+20*5=180
20+40=60
60+20=80
20*5-100
100+80=180
Answer:
A=20
Step-by-step explanation:
a+b+c=180
A+A+40+5A=180
7A=140
/7
A=20
20+(20+40)+20*5=180
20+40=60
60+20=80
20*5-100
100+80=180
Hope this helps! :)
Chocolates costing $8 per pound are to be mixed with chocolates costing $3 per pound to make a 20-pound mixture. If the mixture is to sell for $5 per pound, how many pounds of the $3 chocolate should be used?
10
8
12
If u know, please help :(
Answer:
8 is the correct answer i think I'm not really sure
quick quick, help plzz
Answer: The volume is 10 cm^3
Step-by-step explanation:
We know that each cube is a centimeter cube.
This means that if L is the length of each side of one of these cubes, then L = 1cm
And we know that the volume of a cube of side length L is:
V =L^3
Then the volume of each of the small cubes is:
V = (1 cm)^3 = 1 cm^3
Now we just need to count the number of cubes in the prism.
We can see that there is a "T" shape.
in the front part, we can see 5 cubes.
And there is another part in the back, where we also can assume that there are 5 cubes.
Then the total number of cubes in the prism is 10
And each of these cubes is 1 cm^3
Then the volume of the prism is 10 times 1 cm^3
The volume of the prism is:
V = 10*(1 cm^3) = 10 cm^3
PLEASE HELP DUE IN 2 HOURS!!!!!!!!!!!!!!
Answer:
17) A
18) B
Step-by-step explanation:
A skyrocket is launched from a 30–foot-high platform, with initial speed 300 ft/s. If the polynomial −16t2 + 300t + 30 gives the height that the rocket will rise in t seconds, how high will a rocket with a 2–second fuse rise? The rocket will rise feet.
Answer:
566 ft
Step-by-step explanation:
Given the polynomial equation
-16t² + 300t + 30 = 0
We're asked to find how high the rocket would rise in a 2 second fuse rise. This is a simple instruction that can be obtained by setting the unknown, t, in the equation to 2. Doing this, we have
-16 * 2² + 300 * 2 + 30
-16 * 4 + 600 + 30
-64 + 630 = 566 ft
Then, we can therefore conclude that the rocket will rise high up to a distance of 566 ft
Can someone plz help me
Answer:
31.42
Step-by-step explanation:
What is 3 divided by 5? A: 1 2/3 B:15 C:3/5 D:1/15
Complete the inequality with >, <, or=.
13
<
62
Morgan earned $80 selling 32 paint brushes at a craft fair. What was the cost of each paintbrush sold? Explain
Answer:
$2.5
Step-by-step explanation:
You divide 80 by 32 = 2.5
Hope this helps
Mark brainliest please
Answer:
2.50
Step-by-step explanation:
80/32
=2.50
divide 80 by 32 to get the cost per paintbrush
Identify the likee term in the expression and simplify.
3x + 4y + 2x + x +y
Answer:
6x+5y
Step-by-step explanation:
3x+2x+x= 6x
4y+y=5y
Answer:
6x+5y
Step-by-step explanation:
3x+x+2x+4y+y
= 6x+5y
If the yellow image was reflected across the y-axis, what would the ordered pair be for point B?
Answer:
I believe (-7,3) is the answer
Step-by-step explanation:
Answer:
(-7,3)
count from the origin point to where underneath point b is and you have x but since it's on the positive side and you're flipping it make it negative
then count up from that point and you have y, since you're on the positive top half it stays positive
I need help very fast please
Answer:
the second chaise is the answer
Find the equation of a line that passes through the point (0,1) and has a gradient of 3.
Leave your answer in the form y = mx + c
Step-by-step explanation:
Find the Equation of a Line Given That You Know a Point on the Line And Its Slope
The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept.
If you a point that a line passes through, and its slope, this page will show you how to find the equation of the line
Please help me please
Answer:
200.96 ft²
Step-by-step explanation:
The area (A) of a circle is calculated as
A = πr² ( r is the radius ) , then
A = 3.14 × 8² = 3.14 × 64 = 200.96 ft²
HELP!!! Solve each equation:
8x=23; x = ?
112=2x; x = ?
5x=27; x = ?
14x=5; x= ?
15=23x; x = ?
Answer:
Step-by-step explanation:
Isolate the variable by itself
8x=23 divide each side by 8
x=23/8 (or 2.875 as decimal)
2x=112 divide each side by 2
x=56
5x=27 divide each side by 5
x=27/5 (or 5.4 as decimal)
14x=5 divide each side by 14
x=5/14
23x=15 divide each side by 23
x=15/23
A nursery owner buys 5 panes of glass to fix some damage to fix some damage to his greenhouse. The 5 panes cost $11.75. Unfortunately, he breaks 2 more panes while repairing the damage. What is the cost of another 2 panes of glass?
Answer:
Cost of single pane = 11.75 / 5 = $2.35
Cost of 2 extra panes = 2*2.35 =$4. 7
Answer:
The cost for 2 more glass panes is $4.70
Step-by-step explanation:
1. Fist divide 11.75 by 5 to find out how much one pane costs, you should get 2.35.
2. Next multiply 2.35 by 2 to find out how much it is for 2 more glass panes.
Then you will get our answer ($4.70)
Q3. In a hydraulic lift, a 1400 N force is applied to a 0.5 m2 piston. Calculate the minimum surface area of the large piston to lift 5000 N.
Answer:
1.8m^2 approx
Step-by-step explanation:
Given data
P1= 1400N
A1=0.5m^2
P2=5000 N
A2=??
Let us apply the formula to calculate the Area A2
P1/A1= P2/A2
substitute
1400/0.5= 5000/A2
cross multiply
1400*A2= 5000*0.5
1400*A2= 2500
A2= 2500/1400
A2= 1.78
Hence the Area is 1.8m^2 approx
whar is the value of (4x² -10)
-------------
y
when x=5 and Y=6
A) -15
B)10
C)15
D)20
Question 11 ) Given the following histogram, which term can be used to describe the shape of the data?
The baseball team needs to collect 12,000 cans to raise money for new uniforms each uniform costs $50 they have collected 7,560 cans how many more cans do they need
Answer:
The answer is "4440"
Step-by-step explanation:
Total needed cans=12000
collected cans=7,560
Needed cans=?
Needed cans = Total needed cans - collected cans
[tex]= 12000 -7560\\\\ = 4,440[/tex]
From a standard deck of cards, a 5-card hand is dealt. Calculate the number of hands that contain 4 diamonds and 1 black king
Answer:
1430
Step-by-step explanation:
Given that a standard deck of cards is 52 cards, we have 13 Diamonds and we need 4 diamonds.
Hence, we have 13C4.
Also, we have 4 kings in a standard deck of cards, and in which we have 2 black kings but we need 1 king.
Hence we have a 2C1
Therefore:
13C4 * 2C1
=> 13! ÷ [4! (13 - 4)!] * 2! ÷ [1! (2-1)!]
=> 13! ÷ [4! (9)!]
=> (1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x 11 x 12 x 13) ÷ [(1 x 2 x 3 x 4) (1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9)]
=> (10 x 11 x 12 x 13) ÷ 24
=> (17160 ÷ 24) * (24 ÷ 6)
=> 715
2! ÷ [1! (2-1)!]
=> 2
Hence, we have 715 * 2
=> 1430
Hence, in this case, the correct answer to the question is 1430
Use mathematical induction to prove the statement is true for all positive integers n. 1^2 + 3^2 + 5^2 + ... + (2n-1)^2 = (n(2n-1)(2n+1))/3)
Answer:
The statement is true is for any [tex]n\in \mathbb{N}[/tex].
Step-by-step explanation:
First, we check the identity for [tex]n = 1[/tex]:
[tex](2\cdot 1 - 1)^{2} = \frac{2\cdot (2\cdot 1 - 1)\cdot (2\cdot 1 + 1)}{3}[/tex]
[tex]1 = \frac{1\cdot 1\cdot 3}{3}[/tex]
[tex]1 = 1[/tex]
The statement is true for [tex]n = 1[/tex].
Then, we have to check that identity is true for [tex]n = k+1[/tex], under the assumption that [tex]n = k[/tex] is true:
[tex](1^{2}+2^{2}+3^{2}+...+k^{2}) + [2\cdot (k+1)-1]^{2} = \frac{(k+1)\cdot [2\cdot (k+1)-1]\cdot [2\cdot (k+1)+1]}{3}[/tex]
[tex]\frac{k\cdot (2\cdot k -1)\cdot (2\cdot k +1)}{3} +[2\cdot (k+1)-1]^{2} = \frac{(k+1)\cdot [2\cdot (k+1)-1]\cdot [2\cdot (k+1)+1]}{3}[/tex]
[tex]\frac{k\cdot (2\cdot k -1)\cdot (2\cdot k +1)+3\cdot [2\cdot (k+1)-1]^{2}}{3} = \frac{(k+1)\cdot [2\cdot (k+1)-1]\cdot [2\cdot (k+1)+1]}{3}[/tex]
[tex]k\cdot (2\cdot k -1)\cdot (2\cdot k +1)+3\cdot (2\cdot k +1)^{2} = (k+1)\cdot (2\cdot k +1)\cdot (2\cdot k +3)[/tex]
[tex](2\cdot k +1)\cdot [k\cdot (2\cdot k -1)+3\cdot (2\cdot k +1)] = (k+1) \cdot (2\cdot k +1)\cdot (2\cdot k +3)[/tex]
[tex]k\cdot (2\cdot k - 1)+3\cdot (2\cdot k +1) = (k + 1)\cdot (2\cdot k +3)[/tex]
[tex]2\cdot k^{2}+5\cdot k +3 = (k+1)\cdot (2\cdot k + 3)[/tex]
[tex](k+1)\cdot (2\cdot k + 3) = (k+1)\cdot (2\cdot k + 3)[/tex]
Therefore, the statement is true for any [tex]n\in \mathbb{N}[/tex].
notes i
Which graph represents the solution of -7(x + 3) S 28?
From N
whats
B.
From
10
9
8
7
-6
-5
4
10
9
8
7
6
5
4
https://
From N
D
kindad
4
5
6
7
8
9
10
4
5
6
7
8
9
10
From
https://
--7(x + 3) s.
28
Write the inequality
Distributive Property
From)
-73-21
28
https://
https://
https://
From
Good a
Answer:
fufyfyfugwner546df6f6f6ff5f
The question is in the photo. Please answer with the correct answer.
Answer:9
Step-by-step explanation:
HURRY WILL MARK BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!
Summer deposited $5,800 into an account. She made no additional withdrawals or deposits. Summer earned 1.35% annual simple interest on the money in the account. What was the balance in her account at the end of 3.5 years? Enter the amount in the account in the box. $
Answer:
5800 x 0.0135 = 78.3
78.3 x 3 =234.9
78.3/2 = 39.15
234.9 + 39.15 = 274.05
Your answer is 274.05
Step-by-step explanation:
Hope this helps!
A recipe requires 1/4 cup of foil for every 2/3 cup of water. How much oil (in cups) is needed per cup of water?
Answer:
3/4
Step-by-step explanation:
Solve for X
Will give brainiest
Answer:
x = -3
Step-by-step explanation:
55 + x + 74 + 54 = 180
x + 183 = 180
x = -3
Brian rolls a fair dice 12 times. How many times would Brian expect to roll a number greater than 4?
Brian is expected to roll a number greater than 4, 4 times
How to determine the expected row?In a fair die, we have:
Faces = 6
Faces greater than 4 = 2 i.e. 5 and 6
So, the probability to roll a number greater than 4 is:
p = 2/6
When the dice is rolled 12 times, the expected value is:
Expected = 2/6 * 12
Evaluate
Expected = 4
Hence, Brian is expected to roll a number greater than 4, 4 times
Read more about expected values at:
https://brainly.com/question/15858152
#SPJ1
Please please help help me with two questions!!
Answer:
A. True
B. False
Step-by-step explanation:
1: 30 + 10 = 40 and 8 x 5 = 40 (both match)
2: 75 - 25 = 50 and 5 x 9 = 49 (Doesn't match)
1
Suppose that cand d vary inversely and that d = 2/9 (2 over 9) when c = 5.
Write a function that models the inverse variation and find d when c = 8.
Answer:
d = 10/72
Step-by-step explanation:
c and d vary inversely
c = k/d
Where,
k = constant of proportionality
d = 2/9 when c = 5
c = k/d
5 = k ÷ 2/9
5 = k × 9/2
5 = 9k/2
Cross product
5*2 = 9k
10 = 9k
k = 10/9
c = k/d
c = 10/9 ÷ d
c = 10/9 × 1/d
c = 10/9d
find d when c = 8
c = 10/9d
8 = 10/9d
Cross product
8*9d = 10
72d = 10
d = 10/72
dose anyone have r o b l o x
Answer:
i do my username is EenyMenyOreo
Step-by-step explanation:
Answer:
Yes... lol
Step-by-step explanation:
Why?
Add me: isaaclikesomone