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marusya05 [52]
3 years ago
11

Evaluate if x =3 and y = -2: x squared + 2 y A. 5 B. 10 C. 2 D. 3

Mathematics
2 answers:
Luden [163]3 years ago
5 0
Of you have 3 squared you get 9 then 2 times -2 is -4. then you add them 9=-4 which would be ...A: 5
Elina [12.6K]3 years ago
5 0
<span>x squared + 2 y
x=3x3=9
y=-2x2=-4

9-4=5 answer=A</span>
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7y -2 = 26 help me please<br> Y=
Olenka [21]

Answer:

y = 4

Step-by-step explanation:

7y -2 = 26

    +2    +2

----------------

    7y = 28

    ----   -----

     7       7

      y = 4

Hope this helped.

8 0
2 years ago
HELP!!!!!!!!!!!!!!!!
wolverine [178]
Ratio x coordinates = 20/10
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here’s a picture incase :)

7 0
3 years ago
Read 2 more answers
Algebra about ages please help
valentinak56 [21]

To solve this problem, we need to recognize that Harry's age is given as "n".  We can use this value and the given information to write expressions representing each person's age.

For Example, Jo is 2 years older than Harry and Harry's age is represented by the variable n.  This means that n (Harry's age) plus 2 would equal Jo's age.  This can be represented by the expression: n +2.

Next, we know that Kate is twice as old as Jo, and Jo's age is represented by the expression n+2.  This means that 2 times Jo's age would be equal to Kate's age, or Kate's age = 2(n+2) or 2n +4.

Therefore, your answer is that Jo's age is n + 2 and Kate's age is 2n + 4.

Hope this helps!

3 0
3 years ago
The set of points (1, 3), (3, 5), (4, 7) is collinear. ture or false
Mekhanik [1.2K]
(1,3)(3,5)
slope = (5-3) / (3-1) = 2/2 = 1

(3,5)(4,7)
slope = (7-5) / (4-3) = 2/1 = 2

False....they are not collinear because they have different slopes and do not lie on the same line
3 0
3 years ago
Please help me.Find the value of x in the isosceles triangle shown below​
blagie [28]

There is an isosceles triangle.

The triangle is like two right triangles put together.

To find out the height of the triangle, we remove the other right triangle and we use the other triangle to find the height using the Pythagorean theorem.

Phytagoras Theorem :

b² = c² - a²

x² = 8² - (6÷2)²

x² = 64 - 3²

x² = 64 - 9

x² = 55

x = √55

So, the value of x is √55 (B)

<em>Hope </em><em>it </em><em>helpful </em><em>and </em><em>useful </em><em>:</em><em>)</em>

4 0
3 years ago
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