Answer:
8-w=20
Step-by-step explanation:
Facrorise fully x^2-43^2
Answer:
(x - 43)(x + 43)
Step-by-step explanation:
x² - 43² ← is a difference of squares and factorises in general as
a² - b² = (a - b)(a + b), then
x² - 43²
= (x - 43)(x + 43)
Answer:
(x - 43)(x + 43).
Step-by-step explanation:
This is the difference of 2 squares:
a^2 - b^2 = (a - b)(a + b) so here we have:
x^2 - 43^2 = (x - 43)(x + 43).
Eighty, decreased by three times a
number, is the same as five times the
number, increased by eight. Find the
number.
Answer:
The number is 9.
Step-by-step explanation:
Lets write this as an equation first. We'll substitute the number for the variable x.
80 - 3x = 5x + 8
First, let's add 3x to both sides.
80 - 3x + 3x = 5x + 3x + 8
80 = 8x + 8
Next, let's subtract 8 from both sides.
80 - 8 = 8x + 8 - 8
72 = 8x
Finally, let's divide both sides by 8.
72/8 = 8x/8
9 = x
"x" is 9.
So the secret number is 9.
P.S.
This is my first answer to a Brainly question so please don't complain!
Please help me asap. I need an answer and full explanation. 1st person to complete that gets Brainliest. Question: Amelia likes to collect pokemon cards. She currently has 34 water cards and 29 fire cards. How many more fire cards does she need to collect so her ratio of the number of water cards to fire cards is 2:3?
Thanks and stay perfect.
Answer:
22 cards
Step-by-step explanation:
Set up a ratio.
[tex]\frac{34}{29+x} =\frac{2}{3}[/tex]
[tex]58+2x=102[/tex]
[tex]2x=44[/tex]
[tex]x=22[/tex]
Check: Add 22 to 39. 22+29=51
34/51 = 2/3
Have a great day
These tables correspond to inputs and outputs. Select whether these input and output tables could represent a functions.
Answer:
A function B no function C function D no function
Step-by-step explanation:
Wich expression equivalent to
Answer:
2^6*2^-8
Step-by-step explanation:
what is purpose of the underlined part of the sentence
Please help me please i need help.
9514 1404 393
Answer:
C = 100p +400y-intercept: 400the fixed cost for ...Step-by-step explanation:
The graph shows C = 400 when p = 0 (at the left edge). This is the y-intercept value, and is the cost of production when no phones are produced. It is essentially the fixed cost of rent and equipment.
When p=1, the graph shows C = 500. That is, the cost goes up by 100 when p goes up by 1. This is the cost per phone. It shows up in the cost equation as the slope. So, the cost equation is ...
C = 400 +100p
Someone please help me ASAP
Answer:
13.39x10^10 gallons
Step-by-step explanation:
because if you add them together that is the sum
Answer:
The 2nd option:
1.339×10⁶
Step-by-step explanation:
To find the combined capacity, add the two values together so:
(8.12×10⁵ ) + ( 5.27 × 10⁵ )
It will be simpler to add if you change it out of its
standard form
812000+527000
= 1339000
Now you can write in back in standard form, which will be
1.339×10⁶
The lateral surface area of the cuboids whose dimensions are Length = 22cm, breadth = 12 cm
and height = 7.5 cmn is
Answer:
2×h(l+b)
Step-by-step explanation:
2×7.5(22+12) ,15×24, =360 ,hope you like it
Use Pythagorean Theorem to solve for x.
HELP ME PLZZZZ!!!! ASAP
Answer: [tex]2\sqrt{22}[/tex]
Step-by-step explanation:
Pythagorean theorem: [tex]a^{2} +b^{2} = c^{2}[/tex], where a and b are the legs and c is the hypotenuse.
We can solve for x by only using the left side of the triangle. Since we're only using the left side of the triangle, we can reduce 18 by 2 to get 9. Now we plug in our information to the equation.
[tex]9^{2} +b^{2} = 13^{2}[/tex]
[tex]81 +b^{2} = 169[/tex]
Since we don't know what [tex]b^{2}[/tex] is, we're going to isolate it by subtracting 81 on both sides
[tex]b^{2} = 88[/tex]
We have to square root both sides in order to find out b (or x in the problem).
[tex]\sqrt{b^{2}} = \sqrt{88}[/tex]
When you put this on a calculator it would result in [tex]2\sqrt{22}[/tex] which is the answer d in the problem.
200 children went on holiday. 18% of the children went to Wales. 27% of the children went to Scotland. How many more children went to Scotland than went to Wales?
Answer:
18 children
Step-by-step explanation:
The computation of the more children went to scotland is as follows:
Given that
There is 200 children
out of which 18% went to wales i.e. = 200 × 18% = 36
And, 27% went to scotland i.e. = 200 × 27% = 54
So, the more children went to scotland is
= 54 - 36
= 18 children
Jaden's savings account pays a simple annual interest rate of 2.5%. Suppose he deposits $8,000 in the account and
makes no additional deposits or withdrawals for 4 years. What will the total value of the account be after 4 years?
Answer:
$8830.50
Step-by-step explanation:
1) 8000(1+2.5/100)"2
= $8830.5
I hoped I helped
,You welcome.
Simple interest is a method to calculate the amount of interest charged on a sum at a given rate and for a given period of time.
The total value of the account after 4 years is $8800.
What is simple interest?Simple interest is a method to calculate the amount of interest charged on a sum at a given rate and for a given period of time.
We have,
Principal = P = $8,000
Rate = R = 2.5%
Amount = A
Time = 4 years
Simple Interest:
= (P x R x T) / 100
= (8000 x 2.5 x 4 ) / 100
= 800
Amount = Simple interest + Principal
A = 800 + 8000
A = 8800
Thus,
The total value of the account after 4 years is $8800.
Learn more about simple interests here:
https://brainly.com/question/25845758
#SPJ2
A company's quality control department found an average of 5 defective models for every 1000 models made. If the company produced 60,000 models in a year how many if them would be expected to be defective?
Answer:
300
Step-by-step explanation:
5:1000 can be desimplified to 300:60000
Look at the following graph. Find the slope of the graph and write it in linear equation form (y=mx)
Answer:
y=(3/4)x
Step-by-step explanation:
Find the slope of the line (3/4) and plug that into m
The first two terms of a sequence are a1 =4 and a2= -2. Let a3 be the third term when the sequence is arithmetic and let b3 be the third term when the sequence is geometric. Find a3+b3
Answer:
a3 + b3 = -7
Step-by-step explanation:
When the sequence is A.P
a1 =4 and a2= -2
Common difference,d = a2 - a1
= -2 - 4
d = -6
a3 = third term
a3 = a1 + 2d
= 4 + 2(-6)
= 4 - 12
= -8
a3 = -8
When the sequence is geometric
a1 =4 and a2= -2
Common ratio, r = a2/a1
= -2/4
r = -1/2
Or
r = -0.5
b3 = third term
b3 = ar²
= 4 * (-1/2)²
= 4 * 1/4
= 4/4
= 1
b3 = 1
a3 + b3 = -8 + 1
= -7
a3 + b3 = -7
Please help me with this one
Answer:
D
Step-by-step explanation:
D, it has a right angle and it shows us that the hypotenuse is congruent and the leg is also congruent.
In which set of ordered pairs is y a function of x?
A.{(3, 2), (3, 5), (3, 7)}
B.{(+1, 3), (0, 2), (1, 3)}
C.{(0, 1), (1, 2), (1,3)}
D.{(-2, 0), (0, 2), (2, 2)}
2. Find the slope
between the points
(-4,-6) and (-2,12) .
Answer:
(6,6)
Step-by-step explanation:
negative plus negative equal to positive n vice verser
How many inches of ribbon does Mary have if she has 6 yards of ribbon?(A)18 inches (B)72 inches (C) 216 inches (D)648 inches
Answer:
c. 216.
Step-by-step explanation:
THIN 16 17 18 19 20 cen A rectangular room measures 12 feet by 108 Inches. Tonya said the area of the room is 1,296 square fee What did Tonya do wrong? Select the best option. Tonya ? What is the correct area of the room In feet? feet. The correct area of the room is Question 20 of 20
Answer:
She multiplied feet x inches to obtain the area.
She should convert 108 inches to 9 feet, then multiply 9 x 12 to get the area of 108 ft^2
Find the percent.
13 is what percent of 16?
subtract six from a number cubed
Answer:
2
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What is five sevens subtracted by two and thirds
Answer:
1/21
Step-by-step explanation:
Warren made 5 pans of brownies. He will slice the brownies into pieces, and each piece will be 1/10 of the size of a pan. How many slices of brownies will Warren create? a. 10 b. 25 :c. 50. d. 100
Answer:
c
Step-by-step explanation:
If a piece is equal to 1/10 of a pan , a pan would make 10 brownies
5 pans would make , 10 x 5 = 50 brownies
Answer: c
Step-by-step explanation: each pan is 10 slices so if you multiply that with how many pans you have which is 5 and 5 x 10 = 50
Consider the exponential function g(x) = 1,296x .
Find the output values for x-values x = –1.75, –1, –0.25, 0, 0.25, 0.50, 0.75, and 1.
Just plug in one x into the equation at a time. You should get 8 outputs.
Answer:
The x values should be on the opposite of the y values
Solve the following equation to find the exact value of x. Give your answer as a decimal.
X/9= 2(7x + 8)
Answer:
-1.15 or -1.2
Step-by-step explanation:
[tex]\frac{1}{9} x= 14x +16\\\frac{1}{9} x-14x=16\\-\frac{125}{9} x=16\\x=-1.152[/tex]
Find all roots of the equation x^3+x^2+4x+4=0
Answer:
Find the roots
x3+x2+4x+4=0x3+x2+4x+4=0
solving for
x.
x=−1,2i,−2i
The Humanities final last year had a total of 180 points possible. If a student scored 75% on the final, how many problems did the student answer correctly? How many did the student answer incorrectly?
Answer:
Questions answered correctly:
Student scored 75% out of 180.
= 75% * 180
= 135 problems
Questions answered incorrectly:
= Total points - Questions answered correctly
= 180 - 135
= 45 problems
(2k-7)/5+1-(k-1)/3
Pls help
Answer:
2k/5 + 1 + -k+1/3
Step-by-step explanation:
(2k - 7)/5 + 1 - 1 x (k - 1)/3
Simplify
Combine multiplied terms into a single fraction
2k - 7/5 + 1 - 1 x k - 1/3
2k- 7/5 + 1 + -1(k - 1)/3
Distribute
2k - 7/5 + 1 + -1(k - 1)/ 3
2k - 7/5 + 1 + = -k + 1/3
Solution
2k - 7/5 + 1 + -k + 1/3
Answer:
[tex]\frac{k-1}{15}[/tex]
Step-by-step explanation:
[tex]\frac{(2k - 7)}{5} + 1 - \frac{(k-1)}{3}[/tex]
[tex]\frac{3(2k -7)}{3 ( 5)} + \frac{15 * 1}{15 * 1} - \frac{5(k-1)}{5 * 3}[/tex]
[tex]\frac{6k - 21}{15} + \frac{15}{15} - \frac{5k - 5}{15}[/tex]
[tex]\frac{(6k - 21) + 15 - (5k - 5)}{15}[/tex]
[tex]\frac{(6k - 6) - (5k - 5)}{15}[/tex]
[tex]\frac{6k - 6 - 5k + 5}{15}[/tex]
[tex]\frac{k - 1}{15}[/tex] <------This is your answer
Hope this helps!
A chromosome is best described as a what?
Answer:
a single circular double-helical molecule. a single linear double-helical molecule.
C is the answer to the question, hope it helps