1. What is the first step
in solving equations?

9514 1404 393

Answer:

  90°

Step-by-step explanation:

The largest angle is 6 of the 6+1+5 = 12 ratio units, so is 6/12 = 1/2 of the total number of degrees in a triangle.

The largest angle is 1/2(180°) = 90°.

Answer:

15x

Step-by-step explanation:

because i multiply i side by side and copy the variable

Answer:

- x² + 8x - 15

Step-by-step explanation:

Given

(5 - x)(x - 3)

Each term in the second factor is multiplied by each term in the first factor, that is

5(x - 3) - x(x - 3) ← distribute parenthesis

= 5x - 15 - x² + 3x ← collect like terms

= - x² + 8x - 15 ← in standard form

Answer:

Step-by-step explanation:

Basically it’s goin to be 50 because it says round to the ten and it’s basically 47

Answer:

Lets say that m is months

Every month she deposits 30 so that is 30m

lets say t is time

t = 30m > 120

After 4 months, she will have exactly $120. In 5, she will have more.

Step-by-step explanation:

Answer:

d we cannot compare it volume to bh cubic inches

Answer:

Multiply across the parenthesis and combine like terms

Explanation:

(

x

−

2

)

×

(

3

x

−

4

)

=

x

×

(

3

x

−

4

)

−

2

(

3

x

−

4

)

x

×

(

3

x

−

4

)

−

2

(

3

x

−

4

)

=

3

x

2

−

4

x

−

6

x

+

8

3

x

2

−

4

x

−

6

x

+

8

=

3

x

2

−

10

x

+

8

Step-by-step explanation:

hope this helps

Answer:

16

Step-by-step explanation:

the situation is addition the answer is 16 i think

Answer:

-3=n

Step-by-step explanation:

21=-7n

divide both sides by -7

-3=n

Answer:

n=3

Step-by-step explanation:

21 ÷7=3

n=3

Answer:

im a girl

Step-by-step explanation:

Answer:

36.54

Step-by-step explanation:

that's what it is so just do like 36-37

Answer:

45% of 81.2 is 36.54

Step-by-step explanation:

Answer:

.59

because 0.059 is 10 times greater i dont know lol its just common sense that its .59

Answer:

F(x) ^-1= x+3/4

Step-by-step explanation:

Exchange f(x) for y

Y=4x-3

+3

Y+3=4x

/4

Y+3/4=x

Swap y and x

F(x)^-1= x+3/4

Answer:

Here is your answer

Hope it helps

Answer:

The exact value of x will be [tex]\sqrt{52}[/tex] or 7.2111

Step-by-step explanation:

Hope this Helped

Answer:

need points luvk

Step-by-step explanation:

Step-by-step explanation:

as I guess it's a link question between some others so can you show us whole quetsion of it

Answer:

Here's the photo!

Step-by-step explanation:

Answer:

y = 4x - 2

Step-by-step explanation:

Given: 4x=2+y

First, subtract 2 on both sides to isolate out y. (Slope-intercept form is y=mx+b)

Once subtracted, you get: 4x-2=y

Rearrange it, and you get: y=4x-2

Answer: Each classmate got 9 pencils

Step-by-step explanation: if you divide 8 from 75, you get 9 pencils for each classmate and 3 for Jessica to keep.

Answer:

It is a perfect square expression.

It factors to (x+2)^2

===========================================================

Explanation:

The general format for a perfect square is

(a+b)^2 = a^2 + 2ab + b^2

Which can be seen through the use of the FOIL rule.

Compare x^2+4x+4 with a^2+2ab+b^2, and we have these three equivalences:

Since x^2 = a^2, we can apply the square root to both sides to get a = x. Similarly, 4 = b^2 leads to b = 2. We could get b = -2, but that would mean 2ab = 2x*(-2) = -4x instead of 4x. So we'll stick with b = 2 instead.

Because a = x and b = 2, we then can say:

(a+b)^2 = a^2 + 2ab + b^2

(x+2)^2 = x^2 + 2*x*2 + 2^2

(x+2)^2 = x^2 + 4x + 4

Showing that x^2+4x+4 factors to (x+2)^2.

By "state the universe" I suppose you mean "domain". log₂(x ² + 3x + 2) is defined for

x ² + 3x + 2 = (x + 1) (x + 2) > 0   →   x < -2   or   x > -1

(To solve the inequality, consider values of x between the ones that make the expression exactly equal to 0, in this case x = -2 and x = -1. We have, for instance, for x = -3, that (-3)² + 3(-3) + 2 = 2 > 0, so x ² + 3x + 2 > 0 for all x < -2.)

Now solve the equation: Write both sides as powers of 2 to eliminate the logarithm on the left:

[tex]\log_2(x^2+3x+2)=1\implies 2^{\log_2(x^2+3x+2)}=2^1\implies x^2+3x+2=2[/tex]

Solve the remaining quadratic:

x ² + 3x + 2 = 2

x ² + 3x = 0

x (x + 3) = 0

x = 0   or   x = -3

Both of these solutions are within the presribed domain (-3 < -2 and 0 > -1), so we're done.

Answer:

Step-by-step explanation:

[tex]\frac{deg}{rad}=\frac{360}{2\pi}=\frac{180}{\pi}\\ \\ deg=\frac{180rad}{\pi}\\ \\ deg=\frac{180(4.3)}{\pi}\\ \\ deg=\frac{774}{\pi}^o\\ \\ deg\approx 246^o[/tex]

Answer:

246

Step-by-step explanation:

Let the number be n.

Now, "seven less than a number" means we subtract 7:-

n-7

This expression is equal to 18:-

[tex]\sf{n-7=18}[/tex]

[tex]\mathcal{SOLUTION:-}[/tex]

[tex]\bigstar{\boxed{\pmb{n=25}}}[/tex]

Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)

Answer:

5

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

Solution for What is 12.5 percent of 40:

12.5 percent *40 =

(12.5:100)*40 =

(12.5*40):100 =

500:100 = 5

Now we have: 12.5 percent of 40 = 5

Question: What is 12.5 percent of 40?

Percentage solution with steps:

Step 1: Our output value is 40.

Step 2: We represent the unknown value with $x$.

Step 3: From step 1 above,$40=100\%$.

Step 4: Similarly, $x=12.5\%$.

Step 5: This results in a pair of simple equations:

$40=100\%(1)$.

$x=12.5\%(2)$.

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

$\frac{40}{x}=\frac{100\%}{12.5\%}$

Step 7: Again, the reciprocal of both sides gives

$\frac{x}{40}=\frac{12.5}{100}$

$\Rightarrow x=5$

Therefore, $12.5\%$ of $40$ is $5$

Answer:

she can use 14.025 gigabytes

Answer:

(2x-5)(3x+1)

Step-by-step explanation:

edge 2021

Answer:

at least 125 points on the final

Step-by-step explanation:

90% of 650 = 585

He needs at  least 585 points to get at least 90%

Since he averaged 92 on the first 5 tests, he already has 5(92) = 460 pts

That means he needs to get at least 585 - 460 = 125 pts on the final exam