Answer:
1)
[tex]6x^2=-90\\x^2=-15\\\sqrt{x^2} =\sqrt{-15} \\x=i\sqrt{15} ,-i\sqrt{15}[/tex]
2)
[tex]b^2-4=-2\\b^2=2\\\sqrt{b^2} =\sqrt{2} \\b=\sqrt{2} ,-\sqrt{2}[/tex]
3)
[tex]16x^2-7=-6\\16x^2=1\\x^2=\frac{1}{16} \\\sqrt{x^2} =\sqrt{\frac{1}{16}} \\x=\frac{1}{4} ,-\frac{1}{4}[/tex]
4)
[tex]10p^2+9=239\\10p^2=230\\p^2=23\\\sqrt{p^2} =\sqrt{23} \\p=\sqrt{23},-\sqrt{23}[/tex]
Answer equation pls =)
1/4x+32=x+11
Answer:
1/4x+32=x+11 x=28
Answer:
x=28
Step-by-step explanation:
Write as decimal
0.25x+32=x+11
Subtract 0.25x from both sides
32=0.75x+11
Subtract 11 from both sides
21=0.75x
Divide both sides by 0.75
x=28
Left with what x equals
What is ?
A.20º
B.70º
C.90º
D.180º
Answer:
i think it is 90
Step-by-step explanation:
remember the line is srait
Question 2-4 please
Answer:
Step-by-step explanation:
2) a) You have to find the area of semicircle.
r = d/2 = 12/2 = 6 mm
Area of semicircle = [tex]\frac{1}{2}\pi r^{2}[/tex]
[tex]= \frac{1}{2}*3.14*6*6\\\\= 3.14*3*6\\\\= 56.52 mm^{2}[/tex]
b) r = 10 cm
Area of quadrant = [tex]\frac{1}{4}\pi r^{2}[/tex]
[tex]= \frac{1}{4}*3.14*10*10\\\\=3.14*5*5\\\\= 78.5 cm^{2}[/tex]
3) d = 10 m
r = d/2 = 10/2 = 5 m
Area of circular garden = πr²
= 3.14 * 5 * 5
= 78.5 m²
Area of rectangular pool = 8 * 6 = 48 m²
Area of the garden covered in grass = area of the circular garden - area of pool
= 78.5 - 48
= 30.5 m²
4) a) r = 60 cm
Area of the top of the circular table = πr²
= 3.14 * 60 * 60
= 11304 cm²
diameter of base = 30 cm
r = 30/2 = 15 cm
Area of circular base = 3.14 * 15 * 15
= 706.5 cm²
46 in = ___ft ___in PLEASE HELP!!
Answer:
Step-by-step explanation:
46 in = 3.83333foot inches is 552 PLEASE HELP!!
14pt = 7 qt but i need the work
The US liquid quart is a unit of fluid volume equal to one fourth of a gallon, two pints, or four cups. The liquid quart should not be confused with the dry quart (US) or the imperial quart, which are different units.
The quart is a US customary unit of volume. Quarts can be abbreviated as qt; for example, 1 quart can be written as 1 qt.
Convert: :
23.7 cm =
mm
Answer:
237
Step-by-step explanation:
multiply the length value by 10
Answer:
237 mm
Step-by-step explanation:
Formula
multiply the length value by 10
A store sold 655 bicycles last year. This year the store sold 582 bicycles. What is the percent of change in the number of bicycles sold from last year to this year? Round to the nearest percent
Answer:
12.5%
Step-by-step explanation:
Given data
Number of bicycles sold last year= 655
Number of bicycles sold this year= 582
%percent change= Iniitial -FInal/initial *100
%percent change= 655-582/582*100
%percent change= 73/582 *100
%percent change=0.125 *100
%percent change=12.5%
Hence the percent change is 12.5%
How do you decide what numbers to use as the numerator and the denominator in each equivalent fraction to the given decimal?
Answer:
For denominator the number of digits after the decimal are counted to find the multiple of 10s.
The numerator is the decimal number digits with the decimal removed.
Step-by-step explanation:
The given number of the decimal is used as the numerator and the denominator of the decimal always has to be 10 or a multiple of 10 depending on the position of the decimal point.
For example if we have a number 4.3
The numerator will be 43( the decimal is removed) and the denominator will be 10 because in the original decimal number 4.3 the decimal was before only 1 number that is 3.
Now take the example of 4.36
The numerator will be 436 ( the decimal is removed) and the denominator will be 100 ( 10 *10 = 100) because in the original decimal number 4.3 the decimal was before 2 number that is 3 and 6.
so the fraction will be 436/100
Now if we divide 436 by 100 we will get the same answer as the original number
100√436 4.36
400
360
300
600
600
xxx
The same process is applied to bigger numbers such as 4.365 and so on.
If we have a number 43.6 the numerator will be 436 ( the decimal is removed) and the denominator will be 10 because in the original decimal number 43.6 the decimal was before 1 number that is 6.
so the fraction will be 436/10
If we have a number 436.5 the numerator will be 4365 ( the decimal is removed) and the denominator will be 10 because in the original decimal number 436.5 the decimal was before 1 number that is 5.
so the fraction will be 4365/10
For denominator the number of digits after the decimal are counted to find the multiple of 10s.
The numerator is the decimal number digits with the decimal removed.
25y + 150x = 250
find the Variables
Answer: Step-by-step explanation:
25y + 150x = 250 (÷25)
y+6x=10
y=10-6x
example x=1 y=4
what is the prime factorization of 693
Answer:
The prime factors of 693 are 3, 7, 11.
Hope this helps!
The prime factorization of 693 can be written as [tex]3^2 * 7^1 *11^1[/tex] where 3, 7, 11 are prime numbers.
What is Prime Factorization?In prime factorization, a number is expressed as a product of its prime factors. A prime number is a number which has exactly two factors, 1 and the number itself.
The process in which we write a number as the product of prime numbers is prime factorization. Prime numbers are the numbers that have only two factors, 1 and the number itself. For example, 2, 3, 5, 7, 11, 13, 17, 19, and so on are prime numbers.
For above given examples,
The prime factorization of 693 can be written as [tex]3^2 * 7^1 *11^1[/tex] . In this case 3, 7, 11 are prime numbers.
Thus, the prime factorization of 693 can be written as [tex]3^2 * 7^1 *11^1[/tex] where 3, 7, 11 are prime numbers.
Learn more about Prime Factorization, here:
https://brainly.com/question/10454590
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consider the expression
2⁶/2³
what is the value of the expression?
its urgent
The value of the expression is 8. I hope this helps!!!
65.6g of sugar is needed to make 8 cakes. How much sugar is needed for 5 cakes?
Answer:
41 grams
Step-by-step explanation:
Ratios:
[tex]\frac{65.6}{8} =\frac{x}{5} \\\\8x=328\\x=41[/tex]
Which steps are correct to solving this?
Answer:
it will mist likely be A hope this helps
URGENT!!!!!
Select expression that represents the following statement multiply six by the sum of three and eight
Hi
6 * (3+8) = 6 * 11 = 66
Answer:
66
Step-by-step explanation:
6 (3+8) aka 6×(3+8)
6 (11)
= 66
What is the answer for 8.7mm and 10mm?
Answer:
18.7
Step-by-step explanation:
just add them
help me please i will give brainiest!
Answer:
Latrece will keep $135
Step-by-step explanation:
First, if she sold 18 bracelets, then 18 x 4 = 72.
Latrece will give her friend $72, so 207 - 72 = 135.
Hope this helps!
need help!!!!!!!!!!!!!!!!!!!
Answer:Table 3 i think
Step-by-step explanation:
Use the ALEKS calculator to write as a percentage.
5/17
Round your answer to the nearest tenth of a percent.
Answer:
The answer is 29.4%
Step-by-step explanation:
The given is to be rounded to the nearest tenth percent so
5/17 = 0.294
0.294 * 100 = 29.4% since nearest tenth percent
The required answer is 29.4%
Given fraction is 5/17.
Percentage is a way of expressing a fraction or proportion as a portion of 100. It is a mathematical concept used to represent relative quantities or values in terms of hundredths. The word "percent" is derived from the Latin words "per centum," which mean "per hundred." It is denoted by the symbol "%".
To convert a fraction to a percentage, and multiply the fraction by 100.
Let a and b be the rel numbers. To convert the fraction a/b into percentage by multiply the fraction by 100.
That is , a/b x 100.
And on simplification gives the fractions.
To convert 5/17 to a percentage, we have:
(5/17) x 100 = 29.4117647...
Rounding this to the nearest tenth of a percent, we get:
29.4%
Therefore, when rounded to the nearest tenth of a percent, 5/17 is approximately 29.4%.
Learn more about converting fractions to percentages, click here:
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how much is a a $479.00 purchase with 7.5% sales tax
Answer:
$514.93
Step-by-step explanation:
Before Tax Price: $479.00
Sale Tax: 7.50% or $35.93
After Tax Price: $514.93
The following table is from rolling a six sided die 120 times.
Roll 1 2 3 4 5 6
Frequency 15 18 20 17 24 26
What is the experimental probability of rolling anything other than a 2?
Answer: did you ever get the answer ?
Step-by-step explanation:
please can someone tell me the defenitions of each of these terms?
1. sales tax
2. rebate
3. income tax
4. gross pay
5. net pay
please help me with this! ( links = report )
Answer: 7 mi
r = √153.9/pi
r = √49.01
r = 7
Charles offers 7% over dealer cost on a BMW that has a sticker price of $63,000 and a dealer cost of $56,904
Answer:
The right solution is "$ 60,887.28". A further explanation is provided below.
Step-by-step explanation:
The given values are:
Sticker price,
= $63,000
Dealer cost,
= $56,904
Offer,
= 7%
Now,
The 7% dealer cost will be:
= [tex]\frac{7}{100}\times 56,904[/tex]
= [tex]3,983.28[/tex] ($)
hence,
Amount offered will be:
= [tex]56,904+3,983.28[/tex]
= [tex]60,887.28[/tex] ($)
4. What is the half-life of the radioactive isotope with amount A, whose rate of decay in t hours is shown in the graph below?
(0,40)
(20,15)
Answer:
15, 25
Step-by-step explanation:
Answer:The half life is the time taken for the amount of a substance to become half of its original value. If we take the initial value to be 30 on the y-axis, the half of 30 is 15. We check the time at which the substance has reduced to 15 atoms and this is about 40 seconds. The answer is C.
Step-by-step explanation:
pls answerrrrrr<3333
Answer:
[tex](x+6)(x+10)[/tex]
Step-by-step explanation:
Break the expression into groups, [tex]=(x2+6x)+(10x+60)[/tex]
Factor out x from [tex]x2+6x: x(x+6)[/tex]
Factor out 10 from [tex]10x+60: 10(x+6)[/tex]
[tex]=x(x+6)+10(x+6)[/tex]
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Pls help asap thx its about Operations with Exponents
7.
8.
9.
10.
Answer:
7. 2s^7
8. 2s^4/5s^2
9. 108s^9
10. h^7
Step-by-step explanation:
7) (2s^3)^4
= 2s^(3+4)
= 2s^7.
8) (2s^2/5s)^2
= (2s^4/5s^2)
= 2s^4/5s^2.
9) 3s^5 × 4s^-2 × 9s^6
= 12s^{5+(-2)} × 9s^6
= 12s^3 × 9s^6
= 108s^9.
10) h^5/h^-2
= h^{5-(-2)}
= h^7.
if it helps don't forget to like and mark me
Which function could be represented by the graph on the coordinate plane?
f(x) = (x – 8)2 + 6
f(x) = (x + 8)2 + 6
f(x) = (x + 8)2 – 6
f(x) = (x – 8)2 – 6
Answer:
It D
Step-by-step explanation:
t-shirt costs $12 A pair of shorts costs $25 Amira plans on spending no more than $160 and wants to buy more than 5 items.
Answer:
5 shirts and 4 pairs of shorts
Step-by-step explanation:
160-1 set (12+25=37)=123
123-1 set=86
86-37=49
49-37=12
12-1 t-shirt=0
the price of a console was reduced from 512 to 384 by what percent was the price reduced
Solve by factoring
x^2-3x+16=7x
