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FinnZ [79.3K]
3 years ago
11

Please help , thank you !!!!!!1

Mathematics
1 answer:
Lynna [10]3 years ago
6 0
Answer is 7.
55+5X=90
5X=90-55
5X=35
X=35/5
X=7
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Help on these questions
lana66690 [7]

Answer:

the answer is 42.

Step-by-step explanation:

(8)(5)−8+(2)(5)

=42

7 0
3 years ago
Read 2 more answers
Why is 1 neither a prim number nor a composite number
Otrada [13]

Answer:

it is not a prim number because ONE is not greater than ONE and it is not composite because in that case you can not multiply or divide one by its self

Step-by-step explanation:

in order for a number to be prim you have to have it only be able to be multiplied by one to get the answer but it has to be greater than one. in order for a number to be composite it has to have at least one divisor other than one its self

hope it helps and happy studding

4 0
3 years ago
Read 2 more answers
Don't understand the measure
Anuta_ua [19.1K]
Hello,

\widehat{ABD}=\frac{180-40}{2}=70 (sum of angles of a triangle=180°)

\widehat{ABE}=180-70=110 supplementary angles

\widehat{ABE}=\widehat{DCF} translation BC

\widehat{BCF}=110-40=70 image of the angle DAB by the axis symmetry DB

\widehat{BCF}=\widehat{BEF} opposed angles of a parallelogram
are supplementary.

\widehat{BEF}=\widehat{HEG} opposed angles by the vertex

\widehat{HEG}=\widehat{IHE}=70 alterne-interne angles (sorry for the words English is difficult for me)



















8 0
4 years ago
Given the following functions f(x) and g(x), solve (f + g)(5) and select the correct answer below:
Flura [38]

The addition of the function is:

(f+g)(x)= f(x)+g(x)

So, (f+g)(5)= f(5)+g(5)

To find f(5) and g(5), plug in 5 for x in both the functions.

So, f(5)= 8(5)-13 = 40-13 = 27

g(5)= 5-9= -4

Now we can add f(5) and g(5) to get the answer.

So, (f+g)(5)= 27 +(-4) = 27-4= 23

Hence, (f+g)(5)= 23

4 0
4 years ago
Derive the equation of the parabola with a focus at (−5, 5) and a directrix of y = −1​
VikaD [51]

Answer:

Step-by-step explanation:

If you plot the focus and the directrix you see that the focus is above the directrix. Since a parabola always wraps itself around the focus, this parabola opens upwards and has the standard form equation:

(x-h)^2=4p(y-k) where h and k are the coordinates of the vertex and p is the number of units between the vertex and the focus, or the vertex and the directrix. This number of units will be the same for both since the vertex is smack dab inbetween the focus and the directrix. The focus is also on the axis of symmetry, which means that it shares the x coordinate with the vertex (which is actually the h coordinate) of -5. Halfway between the y value of 5 and the y value of -1 is 2. So the vertex is located at (-5, 2). The number of units between the vertex and the focus is 3, so the equation is:

(x+5)^2=4(3)(y-2) and simplify a bit to

(x+5)^2=12(y-2)

I'm not sure how far down you need to simplify that. Taking it a few steps further gives you:

\frac{1}{12}(x+5)^2=y-2 and then to

\frac{1}{12}(x+5)^2+2=y

It all depends upon the form you're being asked for.

3 0
3 years ago
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