7 + 2y^2

Evaluate the expression for
Y = 5.


Please help me

Answer: -8x-4

Step-by-step explanation:

The equation is supposed to be simplified.

-2x-6x=8x

8x-4

Answer:

Here we will use the relationships:

[tex]a^n*a^m = a^{n + m}[/tex]

[tex](a^n)^m = a^{n*m}[/tex]

[tex]\frac{a^n}{a^m} = a^{n - m}[/tex]

And a number:

[tex]a^n[/tex]

is between 0 and 1 if a is positive and larger than 1, and n is negative.

if a is positive and 0 < a < 1, then we need to have n positive such that:

0 < a^n < 1

A) [tex]5^3*5^{-4} = 5^{3 + (-4)} = 5^{-1}[/tex]

This is between zero and 1,

B) [tex]\frac{3^5}{3^{-6}} = 3^{5 - (-6)} = 3^{11}[/tex]

This is greater than 1, because the exponent is positive.

C) [tex](\frac{1}{4})^3*( \frac{1}{4})^2 = (\frac{1}{4})^{2 + 3} = (\frac{1}{4})^5[/tex]

Because a is smaller than 1, and the exponent is positive, then the expression is between 0 and 1.

D) [tex]\frac{(-7)^5}{(-7)^7} = (-7)^{5 - 7} = -7^{-2}[/tex]

The exponent is negative (and pair) then the expression is between 0 and 1.

Remember that when the exponent is pair, we always have that:

(-N)^m = (N)^m

So (-7)^-2 = 7^-2

Answer:

$950

Step-by-step explanation:

The difference between each y function is $110, so if you continue the pattern, the 5th term will be $950.

Hope this helps :)

Answer:

1/2

Step-by-step explanation:

3/6 = 1/2

Answer:

1/6

Step-by-step explanation:

in case of one fair die, each face has the same probability, thus, P of each number is equally 1/6

Answer: 83 cards

Step-by-step explanation:

38 x 2 + 7 = 83

Hello there!

Step-by-step explanation:

If Jack runs 34 miles, and Pranav runs 18 less, this signifies that we need to subtract 18 from Jack's total miles to get his miles ran.

34 - 18 = 16

Pranav ran 16 miles.

Answer:

No solution

Step-by-step explanation:

With some linear expressions like this one, the answer will turn out to be 0, so your answer would be no solution

Step-by-step explanation:

[tex]an = a1 + (n - 1)d \\ d = a2 - a1 \\ a1 = 20 \\ a2 = 16 \\ d = - 4 \\ an = 20 + (n - 1) \times - 4 \\ an = 20 - 4n + 4 \\ an = 24 - 4n \\ a23 = 24 - 4 \times 23 \\ a23 = - 68[/tex]

Answer:

Orange + Black...

Step-by-step explanation:

Answer:

2(n + 5) = -2

2n + 10= -2

2n = -12

n= -6

Step-by-step explanation:

plz follow me

and mark me as brainlist

Answer:

1 1/2 y

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

recall that graphically, a solution to two equations when expressed in a graph, is simply the coordinate of the point of intersection.

in our case, it clear that the blue and red lines intersect at (-2,0)

if we compare this to your question, it is clear that [?] = 0

Answer:

a 9 cause they both expand by one

Answer:

Volume of figure = Volume of big cuboid+ The volume of small cuboid

                            = 22(5)(8) + 12(5)(8) = 1360[tex]cm^{3}[/tex]        

Answer is 25 good luck!

Answer:

C

Step-by-step explanation:

When reflecting around the x axis, the x value stays the same and the y- will change.

Answer:

Scalene Acute Triangle

Step-by-step explanation:

The triangle above is an "acute triangle" because the measurement of each angle is less than 90°. However, there are three types of acute triangle and these are: Equilateral Acute Triangle, Isosceles Acute Triangle and Scalene Acute Triangle.

When all the angles have the same measurement of less than 90°, then it is an Equilateral Acute Triangle. If only two angles have the same measurement, it is an Isosceles Acute Triangle. If none of the angles are the same but all are less than 90°, which also means that the sides are also unequal, then it is an Scalene Acute Triangle.

The triangle above has different angle measurements of less than 90°. Therefore, it is an Scalene Acute Triangle.

Answer:

D

Step-by-step explanation:

Answer:

23 and 14

Step-by-step explanation:

Answer:

the x and y is 6 and -4 respectively

Step-by-step explanation:

The computation of solving the system of equations is given below:

Given that

5x - 7y = 58

And,

y = -x + 2

Put y value in the first equation

5x - 7(-x + 2) = 58

5x + 7x - 14 = 58

12x = 58 + 14

12x = 72

x = 6

So y = -6 + 2

= -4

Hence, the x and y is 6 and -4 respectively

Answer:

a) pentagon

b) concave

c) not regular

Step-by-step explanation:

a) this polygon has 5 sides, known as a pentagon

b) it is concave because you can connect the top two vertices with a diagonal which will be outside the shape

c) a regular polygon is equilateral (all sides equal) but the markings show that is not the case with this shape

Answer:

40 degrees

Step-by-step explanation:

A full triangle is 180 degrees

85+55=140

180-140=40

Yes, both equations will always work, but yes, at times it is more logical to use one over the other. for instance:

x-4y=6

x+4y=12

we see here that elimination would best fit:

x+x+4y-4y=6+12

or:

x=2y-3

7x+3y-81=23

substitute (2y-3) for x.

Also, once you have a single placeholder, put it ito quadratic form (ax^2+bx+c=0)

and use the quadratic formula:

x=(-b±sqrt(b^2-4ac))/2a

Answer:

yes

Step-by-step explanation:

Answer:

6 x's and 9 ones

Step-by-step explanation:

Answer:

what are you saying

Step-by-step explanation:

this question is not correct

Answer:

3k + 9

Step-by-step explanation:

Answer:

Step-by-step explanation:

Point A has coordinates:

Rule of 270° rotation:

Coordinates of A':

Answer:

Step-by-step explanation:

Answer:

C≈47.12, or 47.1

Step-by-step explanation:

To find the circumference you just use the formula C=2[tex]\pi[/tex]r.

The radius of your circle is 7.5 which is half of 15, now multiply 2[tex]\pi[/tex](7.5) which gives you your answer!

An even easier way to do this is to use the other formula C=d[tex]\pi[/tex],

Just multiply your diameter (which is what was given to you) by pi and you also get your answer!

Hope this helps! :)