answer for this 3+4×5+7​

Answer:

Step-by-step explanation:

If [tex]f(x) = x[/tex]. then you would use the x in that equation to plug in for the x in the equation [tex]g(x)=[/tex] [tex]-x^{2} - 2[/tex]

Answer:

x > -5

Step-by-step explanation:

-3x > 15

divide by -3

x > -5

Answer: x<-5

Step-by-step explanation:

First, we must isolate x in order to graph the inequality properly. To solve for x, you must divide each side by -3. Because you are dividing by a negative number, you must switch the side around. So, the inequality would be [tex]x<-5[/tex]t.To graph this, you must put a veritcal dotted line (since the equation has a less than symbol) and shade to the left (this shows all  the possiblilties of what x could be. Or, if you were to graph it on a number line, put an open circle on -5 and draw an arrow left from the dot.  Hope this helps!

Answer: Willie runs 11 miles in 77 minutes.

Step-by-step explanation:

To know how many miles he will run in 77 minutes we first need to know how much minutes it takes for Willie to run 1 mile.

28/4 = 7 minutes per mile.

We now want to know how much miles Willie will run if he runs for 77 minutes.

77/7 = 11 miles.

Willie runs 11 miles in 77 minutes.

Answer:

Willie can run 11 miles in 77 minutes

Step-by-step explanation:

I did 28/77 and got 2.75. I then multiplied 2.75 and 4 to get 11.

Therefore, Willie can run 11 miles in 77 minutes.

Answer: 1st circle 0.42n

Step-by-step explanation:

Answer:

p=0.42n

Step-by-step explanation:

Im not sure but if you do 2.52 divided by 6 you get 0.42 so my answer is A (p=0.42n)

Answer:

x=2

Step-by-step explanation:

y=3x+2

y=x+6

Since you're stating that, they both equal because equation is equated to equation 2 because of the Y.

Therefore, substitute into both equations as shown:

3x+2=x+6

3x-x=6-2  (bring 2 to the other side by subtracting 2 as well as x)

2x=4

2x/2=4/2  (dividing 2 on both sides to get rid off 2 in 2x)

x=2.

The solution of the given system of equations y=3x+2 and y=x+6 using the substitution method will be x = 2 and y = 8.

More than one variable may be present inside a linear equation.

There are many different ways to define an equation. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of 2 mathematical expressions.

As per the given system of equations,

y=3x+2 and y=x+6

Compare both values,

3x + 2 = x + 6

3x - x = 6 - 2

x = 4/2 = 2

And, y = 2 + 6 = 8

Hence "The solution of the given system of equations y=3x+2 and y=x+6 using the substitution method will be x = 2 and y = 8".

For more about the equation,

brainly.com/question/10413253

#SPJ2

Step-by-step explanation:

dear by changing the sign by elimination method everything gets cancelled

Given:

The system of equation is

[tex]15x+12y=18[/tex]

[tex]5x+4y=6[/tex]

To find:

The solution of given system of equations by using elimination method.

Solution:

We have,

[tex]15x+12y=18[/tex]         ...(i)

[tex]5x+4y=6[/tex]            ...(ii)

Multiply equation (ii) by 3.

[tex]3(5x+4y)=3(6)[/tex]

[tex]3(5x)+3(4y)=18[/tex]

[tex]15x+12y=18[/tex]            ...(iii)

After subtracting (iii) from (i), we get

[tex](15x+12y)-(15x+12y)=18-18[/tex]

[tex]15x+12y-15x-12y=0[/tex]

[tex]0=0[/tex]

This statement is true for all values of x and y. So, the given system of equations has infinitely many solutions and both equations represents coincident lines.

Answer:

(x+3)(x+8)

Step-by-step explanation:

x² + 11x + 24 = (x+3)(x+8)

Answer:

c

Step-by-step explanation:

Answer:

C) 80°

Step-by-step explanation:

By exterior angle theorem

? = 113° - 33°

? = 80°

Answer:

D.

Step-by-step explanation:

Answer:

The answer is very clear is 2/3

Step-by-step explanation:

Answer:

0.09

Step-by-step explanation:

9/100 as a decimal is 0.09.

Answer:

0.09!

Step-by-step explanation:

Convert the fraction to a decimal by dividing the numerator by the denominator.

0.09 is your answer!

Hope this helped.

Signed ~Jaz~

Answer:

Step-by-step explanation:

i d k

Answer:

a! aka: x^2+12

Step-by-step explanation:

I got it right! :3

Answer:

Step-by-step explanation:

First add all of the numbers together

25+22+13+14+21=82

Now add a variable like X since we don't know the age of the sixth, and divide it by 6 since there are 6 people in the class.

82+X/6=22

(22 is the mean age)

Now solve for the equation

82+X=132

so X =50

Answer:

1:C

2:B

3:D

Step-by-step explanation:

To solve these questions you need to know the exterior angle theorem.

1: 8x+2+9x+6=110

17x+8=110

17x=102

x=6

2: 30+98=?

so 128

3: 9x+11+9x+5=124

18x+16=124

18x=108

x=6

Answer:

27

Step-by-step explanation:

hi is 27 because u x all and all is27ggghgghugghgf

Answer

m < 5kg

I don't know what you want but I got this-

Answer:

-|-4|

any number when we out from abslute value becomes positive so

-(4)=-4

Answer:

Step-by-step explanation:

To compare the fractions, give them a common denominator.

⅔ = 16/24

⅜ = 9/24

¾ = 18/24

⅜ < ⅔ < ¾

Answer:

a, b and d

Step-by-step explanation:

Answer:

D) (-2,0)

Step-by-step explanation:

(-2,0)

(-2-2)²+(y+3)²=25

16+9=25

25=25

Answer:

When the line of the graph is going up

Step-by-step explanation:

When the line is going down that means its a exponential decay :)

Answer:

x = 40

Step-by-step explanation:

Hello there!

Remember the circumference of a circle in degrees is equal to 360

so all of the arcs added together will equal 360

360 = x + 20 + 3x + 15 + 4x + 5

step 1 combine like terms

1x+3x+4x=8x

20+15+5=40

now we have 360 = 8x + 40

step 2 subtract 40 from each side

360 - 40 = 320

40 - 40 cancels out

now we have 320 = 8x

step 3 divide each side by 8

320/8=40

8x/8=x

we're left with x = 40

Answer:

yes

Step-by-step explanation:

I think

Answer:

First angle would be 31°, second angle would be 59°

Step-by-step explanation:

You can use the equation 90° = a + (2a - 3°), where a is the measure of your smaller angle.

simplify:

90° = 3a - 3°

93° = 3a

31° = a

let your second angle equal (2a - 3°)

(2(31°) - 3°) = 59°