Someone please help me on this question please. Don’t put a link. Please help me.

Answer:

The solution to the equation is x = 0.38 or -18.38

Step-by-step explanation:

x^2+18x=7 can be properly written as

[tex]x^{2} +18x =7[/tex]

To solve by completing the square, divide the coefficient of x by 2, square and then add to both sides

i.e 18/2 = 9

Then add 9² to both sides of the equation

[tex]x^{2} +18x + 9^{2} = 7 + 9^{2}[/tex]

This becomes

[tex](x+9)^{2} = 7 + 81[/tex]

[tex](x+9)^{2} = 88[/tex]

[tex]x+9 = \pm \sqrt{88}[/tex]

[tex]x = -9 \pm\sqrt{88}[/tex]

[tex]x = -9 \pm 9.38[/tex]

∴ [tex]x = -9+9.38 or -9-9.38[/tex]

[tex]x = 0.38 or -18.38[/tex]

Hence, x = 0.38 or -18.38

Answer:

sin ∅ = 24/25

Step-by-step explanation:

These are the trigonometric ratios

Remember SOHCAHTOA

Sine = Opposite over Hypotenuse (SOH)

Cosine = Adjacent over Hypotenuse (CAH)

Tangent = Opposite over Adjacent (TOA)

We are asked to find sin ∅

The trig function sin = opposite over hypotenuse

so we need to find the opposite side length of the indicated angle (∅)

The opposite side length is equal to 24

Then we find the hypotenuse ( the longest side length ) which would be 25

so sin ∅ = 24/25

Answer:

its b :) then can i help you

Answer:

second option

Step-by-step explanation:

-4 [tex]\leq[/tex] x [tex]\leq[/tex] 2

-4 [tex]\leq[/tex] y [tex]\leq[/tex] 4

Answer:

5669.39

Step-by-step explanation:

438467385378732452386236532168498329

Answer:

If the point is on positive 12 its that answer

Step-by-step explanation:

Answer:

A. (8,14)

Step-by-step explanation:

When looking at the chart pairs there is no other matching option than (8,14).

You have to look in at each column to see the pairs (ex. 8,16 and 4,10).

Answer: [tex]x>14[/tex]

Step-by-step explanation:

Given

Charlie has more than 50 game coins

Steven has [tex]x[/tex] coins

So, according to the question, charlie has 8 more than 3 times the steven coins i.e.

[tex]\Rightarrow 3x+8[/tex]

Also, this must be greater than 50

[tex]\therefore 3x+8>50\\\Rightarrow 3x>42\\\Rightarrow x>14[/tex]

Answer:

The midpoint is (10, 4)

Step-by-step explanation:

To find the midpoint, you add the x value from the first coordinate and the x value from the second coordinate, then divide by two to get the x coordinate of the midpoint. You do the the same exact thing with the two y values to find the y coordinate of the midpoint.

2 + 18 = 20

20 / 2 = 10

1 + 7 = 8

8 / 2 = 4

(10, 4)

Hope this helps!

Answer:(10,4)

Step-by-step explanation:

Mp(x,y)=(2+18/2,1+7/2)=(10,4)

Answer:

17

Step-by-step explanation:

√(x2 - x1)² + (y2 - y1)²

√[4 - (-4)]² + [8 - (-7)]²

√(8)² + (15)²

√64 + 225

√289

=17

Answer:

the answer $1,236

Step-by-step explanation:

Answer:

The smallest possible length for the third side would be 36 whatever-the-nineteen-and-the-sixteen-unit.

Step-by-step explanation:

In a triangle, sides a+b>c, b+c>a So, we first add up the two known sides.

Now we know that "c" has to be greater than 35, the closest whole number would be 36. And because the smaller numbers, 19 and 16, are settled, we know just by the fact how just one number is greater than all of the others, using the rule that I listed from the beginning, that this will work.

Answer:

22

Step-by-step explanation:

a²+b²=c²

14²+17²=c²

c²=485

√c²=22.0227

c=22.0227

smallest whole number is 22

Answer:

6

Step-by-step explanation:

12/2=6

18/3=6

24/4=6

Answer: I'm prett sure its c) 60, 90, and 120

Step-by-step explanation:

Answer:

Let x = the number of minutes of calls

For Plan 1, we know that the monthly charge is 8 + 0.18x

For Plan 2, the monthly charge is 23 + 0.14x

To determine when the cost of the two plans will be equal, we set up the following equation:

8 + 0.18x = 23 + 0.14x

Can you solve for x, Alyssa?

Step-by-step explanation:

The greatest common factor for 30 and 90 would be 30.

30 x 1 = 30 and 30 x 3 = 90

There is no letter j in the second term so rule j out.

The GCF of k^3 and k^2 would be k^2

The answer would be B. 30k^2

Answer:

I select the third option and the last linear equation

Answer:

There are 7 red marbles

Step-by-step explanation:

1/8=x/56

x= 56/8

x= 7

Answer:

1. 32 2. 22

Step-by-step explanation:

Count the squares, if there are half a squares it is .5 added to the total.

Answer:

3

Step-by-step explanation:

Answer:

Miles in 10 gallons = 195

Miles in 1 gallon = 195/10 = 19.5

Miles in 18 gallons = 19.5 × 18 = 351 miles.

Answer:

Miles travelled by the car on 10 gallons of gas = 195 miles

Miles travelled by the car in 1 gallon of gas = 195 ÷ 10 = 19.5 miles

Miles travelled by the car in 18 gallons of gas = 19.5 × 18 = 351 miles.

Answer:

No value because 4π/5 exceeds the domain

Step-by-step explanation:

The domain and range of sin^-1(x) is a domain of [-1,1] and a range of [-π/2,π/2]

Since 4π/5>1, this exceeds the domain and therefore has no value.

Answer:

H and I

Step-by-step explanation:

because the sides opposite the angles are congruent. the angles H and I are congruent

Answer:

mean: 8

Step-by-step explanation:

Find the sum of all of the numbers:

3+4+5+7+10+12+15=56

Divide the sum by the quantity of numbers in the set:

56/7=8

Answer:

The mean= 8

Acellus sux

Step-by-step explanation:

Answer:

answer is no

Step-by-step explanation:

People r so annoying. Delete my answer bc no step by step¿

Fine. In order o make this an arithmetic sequence, the difference between each number should be the same. It’s not same in this sequence

Answer:

4) x = -3 or 8

Step-by-step explanation:

We factories each algebraic expression

4) x² -5x - 24 = 0

x² - 8x + 3x - 24 = 0

(x² - 8x) + (3x - 24) = 0

x(x - 8) + 3(x - 8) = 0

(x + 3)(x - 8) = 0

x + 3 = 0, x = -3

x - 8 = 0, x = 8

x = -3 or 8

Answer:

A profit is made when X>4, or after 4 thousand units.

Step-by-step explanation:

For starters the question states that for a profit to be made P(x) has to be greater than 0, and if you solve P(x) to equal 0 you get 4. Anything after 4 thousand would net the company a profit. You can also graph the equation and the x intercept, or 4 is also answer.

Answer:

The initial value is;

y = 16

Step-by-step explanation:

Here, we want to get the initial value of y

Generally, for an exponential function,

we have the form as;

y = a•b^x

where the initial value is the value we have when x = 0

Looking at the given function, substituting x = 0

We have the function as;

y = 16(0.75)^0

y = 16 * 1

y = 16

So the initial value is 16

Answer:

B and C are both 92 degrees :)

Step-by-step explanation:

180-88 is 92 and C and B are vertical angles so they would both be 92 degrees.