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kozerog [31]
3 years ago
15

On the number line, a point was moved from -7 to -3. Which of the following problems describes this move?

Mathematics
2 answers:
ladessa [460]3 years ago
6 0
0-7+3=-4 because a negative and a positive make the negative go down
castortr0y [4]3 years ago
4 0

Answer:

-7 + 4 = -3

Step-by-step explanation:

So you start at -7 and if you add a positive number to a negative number you basically subtract from the negative number, so you would do -7 + 4 which equals -3

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The exterior angle of a regular polygon is 36º.<br> How many sides does the polygon have?
Mrac [35]

Answer:

10

Step-by-step explanation:

The sum of the measures of the exterior angles in a convex polygon is 360°. And each exterior angle measure 36 degrees so Number of side will be 10.

3 0
2 years ago
PLS HELP ASAP PLSSS PLSSS FIRST CORRECT ANSWER GETS BRAINLIEST PLS ANSWER ​
anzhelika [568]

Answer:

√(23)

Step-by-step explanation:

The Pythagorean Theorem is a² + b² = c²

so...

a = 7

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√(23) = c

PLEASE RATE!! I hope this helps!!

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7 0
2 years ago
Find the equation of a parabola with a vertical axis and its vertex at the origin and passing through the point (-2, 3)
vredina [299]

a vertical axis, I assume it means a vertical axis of symmetry, thus it'd be a vertical parabola, like the one in the picture below.

\bf ~~~~~~\textit{parabola vertex form} \\\\ \begin{array}{llll} y=a(x- h)^2+ k\qquad \qquad \leftarrow vertical\\\\ x=a(y- k)^2+ h \end{array} \qquad\qquad vertex~~(\stackrel{}{ h},\stackrel{}{ k}) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \begin{cases} h=0\\ k=0 \end{cases}\implies y=a(x-0)^2+0 \\\\\\ \textit{we also know that } \begin{cases} x=-2\\ y=3 \end{cases}\implies 3=a(-2-0)^2+0\implies 3=4a \\\\\\ \cfrac{3}{4}=a~\hspace{10em}y=\cfrac{3}{4}(x-0)^2+0\implies \boxed{y=\cfrac{3}{4}x^2}

8 0
3 years ago
Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest
Karolina [17]

Answer:

1/2 or 50%

Step-by-step explanation:

There are 4 total cards

The number of odd or 5 is  3 or 5 so a total of 2 choices

P(5 or odd) = { 5 or odd}/ total

                   = 2/4

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8 0
3 years ago
Read 2 more answers
How meany people use khan for there math?
olganol [36]

Answer:

I must say i don't but i feel like it would be way easier then how my home school is doing it

3 0
3 years ago
Read 2 more answers
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