Solve:
a. 5y – 3 = – 18
b. -3x – 9 = 0
c. 4 + 3(z - 8) = -23
d. 1 – 2(y – 4) = 5

Answer:

B

Step-by-step explanation:

Let me know if I’m correct

hope this helps

Answer:

Answer: c

Step-by-step explanation:

A. ❎

[tex]16 +( 4 \times {5}^{2} ) \\ = 16 + 100 \\ = 116[/tex]

B. ❎

[tex]16 +( 4 \times {5}^{2} ) \\ = 16 \times 100\\ = 116[/tex]

C. ✔

[tex]16 + (4 \times {5}^{2} ) \\ = 16 \times 100\\ = 116[/tex]

D. ❎

[tex]16 + (4 \times {5}^{2} ) \\ = 16 + (4 \times 25) \\ = 16 + 100 \\ = 116[/tex]

Answer:

(13,2)

plss mark me brainliesttt

Answer:

I HOPE IT WILL HELP YOU....

Since the area of B is 9 times the area of A, we know that the sides of B are √9= 3 times the length of the sides of A.

That's how.

Answer:

[tex]2^{2}[/tex]+[tex]3^{2}[/tex]+5

4+9+5

 18

Answer:

marke me as brainly please

Answer:

4.3L of the 40% solution and 5.7L of the 5% solution

Step-by-step explanation:

hope this helps

The value of x is 108.

The highest common factor is defined as the set of numbers with the highest common multiple. The highest positive integer with more than one factor in the set is HCF.

Arithmetic operations can also be specified by adding, subtracting, dividing, and multiplying built-in functions.

* Multiplication operation: Multiplies values on either side of the operator

For example 4*2 = 8

We have been given that the HCF of 90 and x is 18.

And the LCM of 90 and x is 540.

We have to determine the value of x.​

Since the product of two numbers equals the product of their HCF and LCM.

So 90 × x= HCF × LCM

Substitute the values of given data,

⇒ 90×x = 18×540

⇒ 90×x = 9720

⇒ x = 9720/90

⇒ x = 108

Hence, the value of x is 108.

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Answer:

it is 2.5/3.5

[tex]\\ \sf\longmapsto \left(\dfrac{3}{4}\right)^2\times \left(\dfrac{1}{4}\right)^{-2}[/tex]

[tex]\\ \sf\longmapsto \dfrac{3^2}{4^2}\times 4^2[/tex]

[tex]\\ \sf\longmapsto 3^2[/tex]

[tex]\\ \sf\longmapsto 9[/tex]

Answer:

9x

Step-by-step explanation:

)

There you go

I hope this help you

Answer:

1 =647

2=223

3=236

4=490

5=3214

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Answer:

Step-by-step explanation:

x1 + x2 divided by 2

y1 + y2 divided by 2

-3 + 4 is 1/2

-4 + 4 is 0

(0.5,0)

i could be wrong but i did it in my head , but the equation is right . just do that in order

Answer:

( 0.5, - 1 )

Step-by-step explanation:

So here is the equation:

x2 + x1 / 2 For the x coordinate

y2 + y1 / 2 For the y coordinate

x2 is 4 and x 1 is -3 whilst y2 is 2 and y1 is -4.

Thus:

4 + -3 / 2 = 0.5 x coordinate

2 + -4 / 2 = -1 y coordinate

So it becomes (0.5, -1)

HOPE THIS HELPED

Answer:

9.5

Step-by-step explanation:

9.5x9.5= 90.25 which is the closest you can get without going into further decimals

The required algebraic expression is c+4

An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division.

Given that a statement 4 plus c as an algebraic expression

We need to convert it into an expression,

4 = 4

plus = +

c = c

Therefore, arranging it = c+4

Hence, the required algebraic expression is c+4

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Answer:

No it is not correct. Jean had originally $208

Step-by-step explanation:

94 x 2 = 188

188 + 20 = 208

Answer:

solve for k,  k=-1

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable

Answer:

k=-1

Step-by-step explanation:

First step: Distribute

Result: -6-3k-6k=6+3k

Second step: Combine like terms

Result: -6-9k=6+3k

Third step: Add 6 to both sides

Result: -9k=12+3k

Fourth step: Subtract 3k from both sides

Result: -12k=12

Final step: Divide by -12 to both sides

Result/Answer: k=-1

Side note:

Hopefully this helps!

Answer:

(7/2, 27/2) or (3.5, 13.5)

Step-by-step explanation:

The x-coordinate of the midpoint is the average of the x-coordinates of the endpoints.

The y-coordinate of the midpoint is the average of the y-coordinates of the endpoints.

x-coordinate of the midpoint:

(-3 + 10)/2 = 7/2

y-coordinate of the midpoint:

(9 + 8)/2 = 27/2

Answer: (7/2, 27/2) or (3.5, 13.5)

The control group in the experiment are the classes where the teacher does not greet the students

A control group in an experiment is made up of groups of people that do not receive the experimental treatment.

The purpose of a control group is to allow the researcher study one variable at a time.

Victor is conducting an experiment on if positively greeting children as they enter the classroom reduces problem behaviours.

The experimental treatment here is positively greeting the students.

The group that do not receive this experimental treatment are referred to as the control group.

At the end of the experiment, Victor would compare the behaviours of the students in the control group with the behaviour of those who were part of the experimental group to see if greeting reduced problem behaviours.

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Answer Let me ask my brother

Step-by-step explanation:he would know

Answer:

a) [tex] \frac{4}{3} [/tex]

b) -1

Step-by-step explanation:

[tex]\boxed{slope = \frac{y1 - y2}{x1 - x2} }[/tex]

where (x₁, y₁) is the first point and (x₂, y₂) is the second point

6a) Slope

[tex] = \frac{7 - 3}{4 - 1} [/tex]

[tex] = \frac{4}{ 3} [/tex]

6b) Slope

[tex] = \frac{6 - 5}{2 - 3} [/tex]

[tex] = \frac{1}{ - 1} [/tex]

= -1

Answer:#1 is D

Step-by-step explanation:angles must equal 180 and yk that the angle under e is 39 so 180-39 =141

[tex](a+b)(a-b)=a^2-b^2\\\\(4+2i)(4-2i)=4^2-(2i)^2=\boxed{16-4i^2}[/tex]

Answer:

A

Step-by-step explanation:

We want to simplify the expression:

[tex](4 + 2i)(4- 2i)[/tex]

Notice that this is the difference of two squares. That is:

[tex](a +b)(a-b) = a^2 - b^2[/tex]

We can let a = 4 and b = 2i. Hence:

[tex](4+2i)(4-2i) = (4)^2 - (2i)^2[/tex]

Simplify:

[tex]= (16) - (4i^2) \\ \\ = 16 - (-4) \\ \\ = 20[/tex]

(Note that i² = -1.)

In conclusion, our answer is A.