Answer:
A
Step-by-step explanation:
Post in a bit
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.
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 in
[tex] \frac{1}{2} \times - 2 + \frac{1}{3} \times - 5[/tex]
how do I solve this?
[tex]\frac{1}{2} \times - 2 + \frac{1}{3} \times - 5 \\ \\ = \frac{1}{ \cancel2} \times \cancel{- 2} + \frac{1}{3} \times - 5 \\ \\ = 1 \times - 1 + \frac{1}{3} \times - 5 \\ \\ = - 1 + ( - \frac{5}{3} ) \\ \\ = - 1 - \frac{5}{3} \\ \\ = \frac{ - 3 - 5}{3} \\ \\ = \frac{ - 8}{3} = - 2 \frac{2}{3} [/tex]
Hope This Helps YouThe function f(x) is shown on the graph. If f(x) = 0, what is x?
A: 0 only
B: -6 only
C: -2, 1, or 3 only
D: -6, -2, 1, or 3 only
Answer:
C
Step-by-step explanation:
note y = f(x) = 0
y = 0 is the x- axis
We are looking for values of x on the x- axis where the graph crosses/touches
This occurs at
x = - 2, x = 1, x = 3 → C
what are the coordinates of point G ,which divides DE un the ratio 2:3?
Answer:
(5, 7.8)
Step-by-step explanation:
There are several ways to solve this problem, but all of them involve similar triangles and ratios.
See the attached image.
The horizontal distance between points D and E is 11 - 1 = 10. If a segment 10 units long is divided in the ratio 2:3 (as shown by the two smaller segments of length a and b), then
[tex]\frac{a}{b}=\frac{2}{3}\\\frac{a}{a+b}=\frac{2}{2+3}\\\frac{a}{10}=\frac{2}{5}[/tex]
"Cross-multiply" to get
5a = 20
a = 4
To get the x-coordinate of point G, add 4 to 1, the x-coordinate of D.
The x-coordinate of G is 1 + 4 = 5.
The same idea can be used on the second coordinate of G.
The vertical distance from D to E is 15 - 3 = 12.
[tex]\frac{a}{b}=\frac{2}{3}\\\frac{a}{a+b}=\frac{2}{2+3}\\\frac{a}{12}=\frac{2}{5}[/tex]
5a = 24
a = 24/5 = 4.8
The y=coordinate of G is 3 + 4.8 = 7.8
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
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
What’s the answer? I need help
Answer:10
Step-by-step explanation:Multiply 10*10
If 1/2x = -3 then find the value of 4x + 34
Answer:
10
Step-by-step explanation:
1/2x = -3
x = -6
4x + 34
4*(-6) + 34
-24 + 34 = 10
Which is not a binomial in the following expressions? *
options:
(a) 8m - 9m +3mn - 15m + 100mn
(b) 3y - 8yz - 25y -100y
(c) 4ab - 8ab +9cd
(d) -5xy - yx + 6xy - 2yxz - 12xyzp
Answer:
I think d is not a binomial from the option given
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
The difference of 7 and the square of a number.
Answer:
Step-by-step explanation:
I can only show you what the answer is.
7 - x^2.
Be careful which one you put first. Unless told otherwise, the first number mentioned goes before the minus sign.
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%
Hong needs to memorize words on a vocabulary list for Russian class. He has 14 words to memorize, and he is one-half done. How many words has hong memorized so far?
Answer:
Step-by-step explanation:
He has done one half = ½
Finding ½ of 14
½ × 14
7
Hence, Hong has memorized 7 words
[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]
Hong needs to memorize words on a vocabulary list for Russian class. He has 14 words to memorize, and he is one-half done. How many words has hong memorized so far?[tex] \huge \boxed{\mathfrak{Answer} \downarrow}[/tex]
Number of words Hong needs to memorize = [tex] \sf \: 14 \: words[/tex]Words he has finished = [tex] \sf \: \frac{1}{2} \: of \: the \: words \: given \\ [/tex] Words left for Hong to memorize = ?[tex] \huge \boxed{\mathfrak{Steps} \downarrow}[/tex]
[tex] \large \sf \: 14 \times \frac{1}{2} \\\large \sf = \bcancel14 \times \frac{1}{ \bcancel2} \\ \large \sf = 7 \times 1 \\ = \large \boxed{ \bf7 \: words}[/tex]
=> Hong has 7 more words to complete if he has completed about one-half of the total number of words given.
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]
evaluate def² if d= -4, e= 5, and f= -9
Answer:
1620
Step-by-step explanation:
Please make me brainlist
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)6PLS HELP NEED ASAP in 10 mins
Answer:
A
Step-by-step explanation:
All you have to do is replace the x value in the equation g(x) with whatever value x is in the tables given. An example would be as follows:
x = -2 replace x with -2
-1/2( 4(-2) + 6 )
now use pemdas to finish the equation.
you will get g(x) = 1.
Therefore, your answer is the first table, (aka A)
sorry if this doesn't make sense.
(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
the following ratios form a proportion 6/8 * 10/12 true or false
Answer:
false
Step-by-step explanation:
10/12 is 5/6 and 6/8 is 12/16 that's the closest whole number proportionality also, it would both have a difference of 2
Look at this table:
Is this relation a function?
Answer:
Yes, because each x-value has a different y-value.
can someone help please ?
Answer:
-22
Step-by-step explanation:
equantion: (n + 15).6= -42
n = -22
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.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.
Write three different numbers between 19.9 and 20.6.
3/10 of the members of a tennis club are men. 5/6 of these men are right handed. work out the fraction of members of the tennis club who are right handed
Answer:
1/4 of the men are right handed.
Step-by-step explanation:
You know nothing about the women. You know only about the men, so the answer has to be expressed in terms of men.
3/10 * 5/6 = 15 / 60 = 1/4
f(x)=3|x|
can you answer this question
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]
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 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.