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11111nata11111 [884]

3 years ago

11

Help me plz

2 answers:

Anton [14]3 years ago

7 0

Answer:

C. -13

Step-by-step explanation:

Substitute z = 8 into the function:

(8) ÷ 2 - 4(8) + 3(8 - 3) = 4 - 32 +15 = -13

Fynjy0 [20]3 years ago

3 0

I think it’s c because I think it’s easy

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Tara places a picture in a picture frame. The width of the picture is x inches, and the length of the picture is 2 inches more t

CaHeK987 [17]

Refer to the diagram shown below.

The dimensions of the outside of the picture rame are:
Width = x + 1 + 1 = x + 2 inches
Length = (x+2) + 1 + 1 = x + 4 inches.

The perimeter of the outside of the picture frame is 28 inches.
Therefore
2(x + 2) + 2(x+4) = 28

Solve for x.
2x + 4 + 2x + 8 = 28
4x + 12 = 28
4x = 16
x = 4 inches

Answer: 4 inches

7 0

4 years ago

2x + 2y = 0 and y = 2x – 3<br> I<br> I need help asap

Mazyrski [523]

Answer:

x=1 and y=−1

Step-by-step explanation:

Use substitution in order to solve this.

6 0

3 years ago

Suppose that the functions s and t are defined for all real numbers x as follows.

jeka94

Answer:

$(s.t)(x) = 4x^2+24x^2\\(s-t)(x) = x+6-4x^2\\(s+t)(-3) = 39$

Step-by-step explanation:

Given functions are:

$s(x)= x+6\\t(x)= 4x^2$

We have to find:

(s.t)(x) => this means we have to multiply the two functions to get the result.

So,

$(s.t)(x) = s(x)*t(x)\\= (x+6)(4x^2)\\=4x^2.x+4x^2.6\\=4x^3+24x^2$

Also we have to find

(s-t)(x) => we have to subtract function t from function s

$(s-t)(x) = s(x) - t(x)\\= (x+6) - (4x^2)\\=x+6-4x^2$

Also we have to find,

(s+t)(-3) => first we have to find sum of both functions and then put -3 in place of x

$(s+t)(x) = s(x)+t(x)\\= x+6+4x^2$

Putting x = -3

$= -3+6+4(-3)^2\\=-3+6+4(9)\\=3+36\\=39$

Hence,

$(s.t)(x) = 4x^2+24x^2\\(s-t)(x) = x+6-4x^2\\(s+t)(-3) = 39$

8 0

3 years ago

48 – (−12) = A) -60 B) -36 C) 36 D) 60

34kurt

48 - (-12)

48 + 12 simplify brackets. (because two negatives equals a positive)

60 << answer

hope this helps, God bless!

6 0

4 years ago

Read 2 more answers

a veterinarian prescribed sunny, a 65 lb dog, an antibacterial medicine in case an infection emerges after her teeth were cleane

Ber [7]

Answer:

Sunny was given 5*65=325 mg of antibacterial medicine

Step-by-step explanation:

This is a simple proportion problem. We have the dosage and the weight of the dog

Sunny is a 65 lb dog. The antibacterial medicine must be applied with a dosage of 5 mg for every pound the dog weighs

So, the dog was given 5*65=325 mg of antibacterial medicine

3 0

4 years ago