I’m really confused can anyone solve this?

Answer:

11

Step-by-step explanation:

PEMDAS

Answer: 56-70+35 hope this helps

Step-by-step explanation: -7x-8 (neg x neg = positive), -7x10, -7x-5

The temperature outside is -12 degrees Fahrenheit.

Zero is where the temperature changes from a negative value to a positive value.

Answer:

Step-by-step explanation:

Answer:

answer is below

Step-by-step explanation:

x - 2y = 12

First step is to solve for y, so

[tex]x - 2y = 12[/tex]

Then, subtract x on both sides to isolate the variable, y.

[tex]-2y = -x + 12[/tex]

Divide both sides by -2

[tex]y = \frac{1}{2}x - 6[/tex]

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

The domain is {-3,-1,0,2,5}

Domain is the set of x values

Range is the set of y values

We are given the domain x, we need to find out the y values using the equation: [tex]y= \frac{1}{2}x - 6[/tex]

[tex]y = \frac{1}{2}(-3) -6 = \frac{-15}{2} = -7.5\\\\y = \frac{1}{2}(-1) -6 = \frac{-13}{2} = -6.5\\\\y = \frac{1}{2}(0) -6 = -6\\\\y = \frac{1}{2}(2) -6 = -5\\\\\\y = \frac{1}{2}(5) -6 = -\frac{7}{2} = - 3.5[/tex]

therefore,

when x is -3: y = -7.5

when x is -1: y = -6.5

when x is 0: y = -6

when x is 2: y = -5

when x is 5: y = -3.5

Range is {-7.5, -6.5, -6 , -5, -3.5}

hope this helps and is right :)

p.s. i really need brainliest

Answer:

v = 10.5

Step-by-step explanation:

v = l× w× h

v = 2 × 1 1/2 × 3 1/2

good luck, i hope this helps :)

Answer:

10 1/2

Step-by-step explanation:

V = lwh

l = 2

w = 1 1/2 or 1.5

h = 3 1/2 or 3.5

2 x 1.5 x 3.5

10.5 or 10 1/2

Answer:

one would be (14,6)

(16,0)

Answer:

Step-by-step explanation: just

Answer:

6 inches per year/ 6;1

Step-by-step explanation:

30;5 can be simplified into a unit rate by dividing by 5. 30/5=6 and 5/5=1. So its 6 inches per one year

Answer:

The fast food restaurant has the higher unit price

Answer:

6)B 7)C 8)B 9)D 10)c

Step-by-step explanation:

i think i did them all correct

Answer:

No

Step-by-step explanation:

You use the Pythagorean Therom and square your legs (5 and 12) and your hypotenuse (14) it would add up to 25+144=196.

This is not true since 144+25 is 169, not 196

Answer:

No, it is not a right triangle.

Step-by-step explanation:

You can determine whether a triangle is a right triangle by using the pythagorean theorem.

a^2 + b^2 = c^2

c will always be the longest side of the triangle, so in this case you need to substitute 5 and 12 in for a and b and see if it simplifies to 15.

5^2 + 12^2 = c^2

25 + 144 = c^2

c^2 = 169

c = 13

C would be 13, not 15, so the triangle is not a right triangle

Hope that helps! :))

Answer:

a + 5b + 5c

Step-by-step explanation:

here's your solution

=> 3a + 4b + 5c +(-2a) + b

=> solve for like term

=> 3a - 2a + 4b + b + 5c

=> a + 5b + 5c

hope it helps

Answer:

10P + 7m = 19 .......... 1

3P + 5m = 10.05 .......... 2

Step-by-step explanation:

Let the cost of pencil be represented by P, and felt-tip by m. So that;

Rodrigo bought 10 pencils and 7 felt-tip at the cost of $19.0.

⇒ 10P + 7m = 19 .......... 1

Melissa bought 3 pencils and 5 felt-tip at the cost of $10.05.

⇒ 3P + 5m = 10.05 .......... 2

From equations 1 and 2,

10P + 7m = 19 .......... 1

3P + 5m = 10.05 .......... 2

Multiply equation 1 by 3, and 2 by 10 to have;

30P + 21m = 57 ......... 3

30P + 50m = 100.5 ....... 4

Subtract equation 3 from 4,

30P - 30P + 50m - 21m = 100.5 - 57

29m =43.5

m = [tex]\frac{43.5}{29}[/tex]

 = 1.5

m = 1.5

Substitute the value of m in equation 2,

3P + 5m = 10.05 .......... 2

3P + 5(1.5) = 10.05

3P = 7.5 = 10.05

3P = 3

P = 1.0

Thus, the cost of a pencil is $1.0 and that of a felt-tip is $1.5.

Answer:

50

Step-by-step explanation:

Answer:

Just -5.0

Step-by-step explanation:

10 divided by 2 is 5, since it's negative the answer is negative

Answer:  -5

Step-by-step explanation:

Answer:

147?

Step-by-step explanation:

Answer:

i dont know but i think 12 points

Step-by-step explanation:

Answer:

A-1

Step-by-step explanation:

It perfectly represents the scenario.

Answer:

A - 2

Step-by-step explanation:

younger  =  -

A - 2

Hope this helped! Have a nice day! Plz mark as brainliest!!! :D

-XxDeathshotxX

50 points is a lot man

Answer:

I'm not sure tbh, sorry .

Answer:

He should put 25 marbles in each group because 125/5 is equal to 25.

Answer:

its A

Step-by-step explanation:

Answer:

.

Step-by-step explanation:

Answer:

2.4%

Step-by-step explanation:

79.20/0.6=132

132/5500*100=24%

Answer:

1.9685

Step-by-step explanation:

If you are thinking in inches and if you need to simplify its pretty easy.

Answer:

like 7

Step-by-step explanation:

Answer:

Vijay performance is better

Step-by-step explanation:

Answer:

hope help you stay happy

Answer:

The least number of meals Amelia needs to cater in order to begin making profit = 38 meals.

Step-by-step explanation:

Given - Amelia runs a catering business. Based on her records, her weekly  

            profit can be modeled by P= -2x² + 152x - 150, where x is the  

            number of meals she caters and P is her profit. When P is negative,  

            Amelia losses money.

To find - What is the least number of meals Amelia needs to cater in order  

              to begin making profit.

Proof -

As given, P = -2x² + 152x - 150

Now,

Above the break-even point, she only get profit

The break -even point is a point where there is no profit, and no loss.

Now,

For break-even point,

[tex]\frac{dP}{dx} = 0[/tex]

⇒[tex]\frac{d}{dx}( -2x^{2} + 152x - 150) = 0[/tex]

⇒-4x + 152 = 0

⇒- 4x = - 152

⇒4x = 152

⇒x = [tex]\frac{152}{4}[/tex] = 38

∴ we get

If Amelia caters at least 38 meals , then she makes Profit.