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3 years ago

What’s the answer to this ?

Mathematics

2 answers:

melamori03 [73]3 years ago

7 0

Answer:

Step-by-step explanation:

The wand/star is 7+7+7=21

The broom is 4+4+4=12

The witch is holding a wand and a broom

So: (x is the witch)

7+4+x+7+4+x+7+4+x=45

33+3x=45

3x=45-33

3x=12

x=12/3

x=4

So this makes the last one

4+4x7=?

4+28=32

DerKrebs [107]3 years ago

4 0

Answer:

109

Step-by-step explanation:

A witch is 15 + 15 + 15 = 45

A wand is 7 + 7 + 7 = 21

A broom is 4 + 4 + 4 = 12

First you do one witch which is 15, times one wand which is 7

So, 15 x 7 = 105

Then 105 + one broom which is 4 equals 109

<u>The order I went in was called </u><u>Pemdas, or order of operations.</u>

What is " Pemdas ? "

Parentheses

Exponent

Multiplication

Division

Addition

Subtraction

WAYS TO REMEMBER:

Please

Excuse

Dear

Aunt

Sally

<h2>Sorry I gave extra info, but..........<u> Hope to help!</u></h2>

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A professor gives a statistics exam. The exam has 100 possible points. The scores for the students in the second classroom are a

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Answer:

N = 9

M = 87.11

Step-by-step explanation:

According to the situation, the data provided and the solution are as follows

The scores for the student in the classroom is

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The different student's number of scores is 9

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Sample size (n) = 9

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= $\frac{88 + 88 + 92 + 88 + 88 + 72 + 96 + 88 + 84}{9}$

$= \frac{784}{9}$

= 87.11

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2 years ago

Devide. (x^3-8x^2+2•(x-3)

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Answer:

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3 years ago

the vertex of this parabola is at (5,5). when the x-value is 6, the y-value is -1. what is the coefficient of the squared in the

zlopas [31]

Answer: OPTION D.

Step-by-step explanation:

The vertex form of a quadratic function is:

$y= a(x - h)^2 + k$

Where (h, k) is the vertex of the parabola and "a" is the coefficient of the squared in the parabola's equation.

We know that the vertex of this parabola is at (5,5) and we also know that when the x-value is 6, the y-value is -1.

Then we can substitute values into $f (x) = a(x - h)^2 + k$ and solve for "a". This is:

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3 years ago

HELP!!

torisob [31]

195 is the answer because you replace x with 10

Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the closed linear form for this sequence given a1 = 0.3 and an + 1 = an + 0.75?

german

Answer:

The closed linear form of the given sequence is $a_{n}=0.75n-0.45$

Step-by-step explanation:

Given that the first term $a_{1}=0.3$ and $a_{n+1}=a_{n}+0.75$

To find the closed linear form for the given sequence

The formula for arithmetic sequence is

$a_{n}=a_{1}+(n - 1)d$ (where d is the common difference)

The above equation is of the given form $a_{n+1}=a_{n}+0.75$

Comparing this we get d=0.75

With $a_{1}=0.3$ and d=0.75

We can substitute these values in $a_{n}=a_{1}+(n - 1)d$

$a_{n}=a_{1}+(n - 1)d$

$=0.3+(n-1)(0.75)$

$=0.3+0.75n-0.75$

$=-0.45+0.75n$

Rewritting as below

$=0.75n-0.45$

Therefore $a_{n}=0.75n-0.45$

Therefore the closed linear form of the given sequence is $a_{n}=0.75n-0.45$

3 0

2 years ago