Answer:
9
Step-by-step explanation:
9 is 3/4*12.
why do you multply by a power of 10 when writing a repeating decimal as a fraction
The goal is to multiply by a certain number (10, 100, 1000, etc.) so that when the original number is subtracted from the multiple, the repeating element cancels out. 10x = 2 is the result of multiplying by ten.
find the 50th term of 0,3,6,9
[tex]\text{a}_1=0 \ \text{and} \ \text{a}_2=3\\\\\text{r}=\text{a}_2-\text{a}_1=3-0=3\\\\\text{a}_{50}=\text{a}_1+49\text{r}=0+49\cdot3=0+147=147\\\\\huge\boxed{\text{a}_{50}=147}[/tex]
Sandra has 4 math tests this marking period. She recieved 90%, 87%, and 92% on the first 3. with is the minimal score she needs on her last test in order to average at least 90% in math class?
The minim she can get for a score is a 90%
6. In the expression shown x represents a rational
number
6x
What value of x makes the expression equal to a
number greater than 6?
A.7/8 B.17/17 C.14/15 D.7/5
Answer:
d
Step-by-step explanation:
7/5 is greater than 1
sorry if this is wrong
Can someone one help?
Answer:
The answer for that question is B
Which unit of measure provides the MOST accuracy when determining the time of a runner in the
100-meter race?
a. hour c. second
b. minute d. hundreth of a secon
Answer: hundreth of a second
Step-by-step explanation: it is most accurate unlike some of the larger units that could be used
work out b(4½-3⅔)+1⅔
Answer:
2 [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
Change the mixed numbers to improper fractions
([tex]\frac{9}{2}[/tex] - [tex]\frac{11}{3}[/tex] ) + [tex]\frac{5}{3}[/tex] ← the LCM of 2 and 3 is 6
= [tex]\frac{9(3)}{2(3)}[/tex] - [tex]\frac{11(2)}{3(2)}[/tex] + [tex]\frac{5(2)}{3(2)}[/tex]
= [tex]\frac{27}{6}[/tex] - [tex]\frac{22}{6}[/tex] + [tex]\frac{10}{6}[/tex]
= [tex]\frac{5}{6}[/tex] + [tex]\frac{10}{6}[/tex]
= [tex]\frac{15}{6}[/tex]
= [tex]\frac{5}{2}[/tex]
= 2 [tex]\frac{1}{2}[/tex]
I need to know what is the fraction, 2/5 as a decimal?
Answer:
0.4
Step-by-step explanation:
Answer:
0.4
Step-by-step explanation:
What least number should be subtracted from 45,632 so that the number is divisible by 100 (plzz answer)
Answer:
32
Step-by-step explanation:
I don't know if I am correct but if you subtract 32 from 45632 then you will get 45600 which is easily divisible by 100, so your answer is 32
1Q _____is neither a prime number nor a composite number
2Q the only even prime number is ______.
3Q A prime number has only_____ factors,______and_______.
4Q _______is the smallest prime number is_____.
5Q there are ______ prime numbers less then 20.
Somebody help me on A. And. B. Pleaseeee
Answer:
a. dbc = 66, ABC = 132
b. abd = 52, dbc= 52
Step-by-step explanation:
just remember that bisects means that the angles on either side of the middle line are equal. so for a, dbc = abd and ABC = 2x 66
for b, abd and dbc are equal, so both of them are just 104 divide by two
please help me! how much times can 23 go into 1,624 please tell me the quotation and remainder!!:)
Answer:
Quotient= 70
Remainder=14
Step-by-step explanation:
Do you need explanation?
Answer:
23 goes into 1,624 70 times
What do you mean by rational numbers? Give an example of rational number.
Any number that can be written as a fraction with integers is called a rational number.
example are:1/2,-1,0,3....
hope it help.
stay safe healthy and happy.square picture has an area of 225 in^2 What is the side length of the picture
Answer:
15 in
General Formulas and Concepts:
Pre-Algebra
Equality PropertiesGeometry
Area of Square Formula: A = s²
s is the side lengthStep-by-step explanation:
Step 1: Define
Identify variables
A = 225 in²
Step 2: Solve for s
Substitute in variables [Area of a Square Formula]: s² = 225 in²[Equality Property] Square root both sides: s = 15 inpleaseeeee helpppp!!
Answer:
something
Step-by-step explanation:
I JUST NEED POINTS TO ASK QUESTIONS
Which expression is most easily solved without the use of a calculator?
(5.6 – 2.9) × 2.2
1.2 × (8.4 – 6.4)
(8.7 – 1) × 5.4
0.9 × (7.8 – 3.9)
im timed
Answer:
1.2 x (8.4-6.4)
Step-by-step explanation:
1.2 x 2 = 2.4
Answer:
1.2 × (8.4 – 6.4)
Step-by-step explanation:
8.4 - 6.4 = 2
2 x 1.2 = 2.4
This one seems the easiest to multiplying into and subtracting than the others.
y(x-(9-4y)) for x=4 and y=2
Answer:
6
Step-by-step explanation:
( 2 ) ( 4 - ( 9 - 4 ( 2 )))
2 ( 4- ( 9-8 ))
2 ( 4 - ( 1 ))
2 ( 3 )
6
Answer:
6Step-by-step explanation:
2(4-(9-4(2) )2 ( 4- (9-8)2(4 - 1)2(3)6a ballroom had a square dance floor. The area of the floor is 400 square feet. If the length of each side of the square increased by one foot, would its area be a rational number?
Answer:
Yes
Step-by-step explanation:
The area of a square is equal to the length squared.
So, the length of one side of the original floor is √400 which equals 20.
If you increase the length by 1, the area of the dance floor is 21 squared.
21 * 21 is certainly a rational number.
Answer:
Step-by-step explanation:
I think so, yes.
The area of a square is A = s*s where s is the length of the side
s^2 = 400
sqrt(s^2) = sqrt(400)
s = 20
If you increase each dimension by one foot you get 21 * 21 for the area of the new ballroom.
The result is rational. That's because the square root was rational when you found 20.
Area = 21 * 21 = 441 which is rational.
Which Expression is equal to 632?
A. 2⁴(3 x 5³ + 2²)
B. 2³(3 x 5² + 2²)
C. 2³ (3 x 5² + 2⁵)
D. 2⁴(3 x 5⁵ + 2¹⁶)
Plz help meee!
Answer:
B. 2³(3 x 5² + 2²)
Step-by-step explanation:
2³(3 x 5² + 2²)
Step 1. Simplify the exponents
8(3 x 25 + 4)
Step 2. Multiply 3 and 25
8(75 + 4)
Step 3. Add 75 and 4
8(79)
Step 4. Multiply
632
Answer:
Option B. 2³(3 x 5² + 2²) is correct
Step-by-step explanation:
2³(3 x 5² + 2²)
First of all multiply the exponents
8×(3×25+4)
Then do the multiplication of 3 and 25
8×(75+4)
Now add the following numbers in the bracket
8×(79)
And the last multiply the following numbers
8×79
632
[Hence, the expression 2³(3 x 5² + 2²) is equal to 632. ]
Write three different numbers between 19.9 and 20.6.
This one is very hard for me
15x + 57 ≥ 129
15x ≥ 129 - 57
15x ≥ 72
x ≥ 24/5
x ≥ 4.8
Answer:
[tex]x \geqslant 4.8[/tex]
Step-by-step explanation:
[tex]15x \: \: \: \: + \: 57 \geqslant 129 \\ or \: 15x \geqslant 129 - 57 \\ or \: x \geqslant 72 \div 15 \\ or \: x \geqslant 4.8 \\ [/tex]
write an equivalent expression (x+2)(x-3) by using the distributive property
Answer:
x(x-6)
Step-by-step explanation:
(x+2)(x-3)
x^2-3x+2x-6
x^2-x-6
x(x-6)
Look at this table:
Is this relation a function?
Answer:
Yes, because each x-value has a different y-value.
f(x)=3|x|
can you answer this question
can someone help please ?
Answer:
-22
Step-by-step explanation:
equantion: (n + 15).6= -42
n = -22
Simplify the expression
Answer:
Step-by-step explanation:
It might be wrong but i beieve that it is 4 to the 5th multiplied 4 to the 2nd
Answer:
[tex] {8}^{10} \times {8}^{4} \\ = {8}^{14} \\ thank \: you[/tex]
evaluate def² if d= -4, e= 5, and f= -9
Answer:
1620
Step-by-step explanation:
Please make me brainlist
[LOOK AT THE PICTURE]
I can't understand why it can be written as
[tex] \frac{1}{2} {x}^{ \frac{1}{2} - 1} [/tex]
PLS ANS CLEARLY
The rule is
[tex]\frac{d}{dx}x^n = nx^{n-1}[/tex]
which is the power rule. You pull down the exponent to place it as the coefficient. So that explains the 1/2 pull out front. Then we subtract 1 from the exponent.
The expression you wrote can be simplified or rewritten like this
[tex]\frac{d}{dx}x^n = nx^{n-1}\\\\\frac{d}{dx}\left[x^{1/2}\right] = \frac{1}{2}x^{\frac{1}{2}-1}\\\\\frac{d}{dx}\left[x^{1/2}\right] = \frac{1}{2}x^{-\frac{1}{2}}\\\\\frac{d}{dx}\left[x^{1/2}\right] = \frac{1}{2}\frac{1}{x^{\frac{1}{2}}}\\\\\frac{d}{dx}\left[x^{1/2}\right] = \frac{1}{2x^{\frac{1}{2}}}\\\\\frac{d}{dx}\left[x^{1/2}\right] = \frac{1}{2\sqrt{x}}}\\\\[/tex]
Optionally, we can multiply top and bottom by [tex]\sqrt{x}[/tex] to rationalize the denominator.
(20 points) I need help please
Answer:
The perimeter is 62ft
Step-by-step explanation:
5 + (6 x 4) + (2 x 8) + 17
5 + 24 + 16 + 17
29 + 33
62
I NEED YOUR HELP!!
What is 2 + 3x8
Answer:
26Step-by-step explanation:
2 + 3 × 8 = ?2 + 24 = ?26[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]