Mathematics College

I will mark brainliest

Answers

Answer 1

Answer:

It's x = 12 (d)

Step-by-step explanation:

Subtract 4 on both sides: (16 - 4) - x = (4 - 4)

12 - x = 0

Then add x on both sides: 12 (- x + x) = (0 + x)

12 = x

Therefore x = 12

Related Questions

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (–1 + i) + (21 + 5i)? (–1 + i) + (21 + 5i) + 0 –1 + (i + 21) + 5i (–1 + 21) + (i + 5i) –(1 – i) + (21 + 5i)

Answers

Answer:

i think the answer is C, (-1 + 21) (i + 5i)

Step-by-step explanation:

i just took the test and got a 92% but it didnt tell me which ones were wrong. thats my best guess though. i hope it helps!

The expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression as, (-1 + 21)+(i + 5i). Option C is correct.

What is an expression?

It is defined as the combination of constants and variables with mathematical operators.

It is given that the expression is, (–1 + i) + (21 + 5i)

We have to find the expression that demonstrates the use of the commutative property of addition

According to the commutative property of addition, altering the order of addends has no impact on the sum.

Commutative law refers to either of two rules pertaining to the addition and multiplication of numbers that are expressed symbolically as a + b = b + a and ab = ba. These principles imply that rearranging the terms or factors of any finite sum or product has no effect on it.

Thus, the expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression as, (-1 + 21)+(i + 5i). Option C is correct.

Learn more about the expression here:

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3x + y = 15 and y = 2x
The solution, given in (x,y) form is

Answers

Answer: (3, 6)

Step-by-step explanation:

3x + y = 15

y = 2x

Using substitution:

3x + 2x = 15

5x = 15

x = 15/5

x = 3

y = 2x

y = 2 * 3

y = 6

x = 3

y = 6

= (3, 6)

And the number 6,497.4, the four next to the six is worth ___ times the other four.

A) 10

B) 100

C) 1,000

D) 10,000

The answer is : C

The answer is C because the four next to the six is three places to the left of the other four, its 1,000 times the other four

Answers

Yeah the answer is c

The length, width and height of a rectangular prism is given as 15 cm, 10
cm and 5 cm respectively. What is the volume of the prism? *

A) 30cm3
B)150cm3
C)750cm3
D)750

Answers

Answer:

Its option C

Step-by-step explanation:

to find the volume you multiply the length, width and height together.

C is the correct answer.

Why?

Volume is calculated by multiplying a, b and c
V = a x b x c
V= 15 cm x 10 cm x 5 cm
V= 750cm^3

Do note that since we are finding the volume, the proper measurement would be cm^3

Write an equation in slope-intercept form that is perpendicular to y = -7x + 3 and passing through (14.1).

Answers

Answer:

y = 1/7x -1

Step-by-step explanation:

1) Find the slope.

- In this case, the equation given is in simplest form so you can easily come to the conclusion that '-7' is the slope. But, since the math question wants a slope-intercept form in perpendicular form, the slope would actually be 1/7.

2) Use the point-slope form and substitute the values available. Then solve.

m (slope) = 1/7

(a, b) = (14, 1)

y - b = m(x - a)

y - 1 = 1/7(x - 14)

y - 1 = 1/7x - 2

y = 1/7x - 1

The result is your answer.

Hope this helped (please tell me if I made a mistake or if you have any confusion and I will resolve it under the comments) ^^

Which graph represents a linear function?

Answers

Answer:

Graph two would be the answer because it is not curving.

Step-by-step explanation:

19 - k = 4.

I need help

Answers

Answer:

Step-by-step explanation:

first you have to subtract 4 from 19 to get what k is. that should be your answer. good luck!

Choose a missing numbers that make the following expression equivalent ____x + 14 and 7 ( 5 x + _____ )

Answers

Answer:

35x + 14 and 7(5x + 2)

Step-by-step explanation:

We have to find the missing values that would also make both expressions equivalent.

_x + 14 and 7(5x + _ )

In the expression, there are some similarities with the placement of the numbers and variables.

Let find the value of the number next to "x".

You can see that we have to use the distributive property to solve the right expression, and once we do so, we can find our first value.

Use the distributive property:

7(5x)

35x

Now we know that our first value is 35x.

To find our second value, we see that in the first equation it is "14", so we need a number that can be multiplied by 7 to make 14.

7 · 2 = 14

Our second number would be 2.

Your final answer would be: 35x + 14 and 7(5x + 2)

Once you use the distributive property for the second expression, you would get an equivalent expression as the first one.

Match each equation to its solution

Answers

Step-by-step explanation:

First one on the left = Second one on the right

Second one on the left = First one on the right

Third one on the left = Third one on the right

1/2 + 2/3 divided by 1/6 =

Answers

Answer:

4 3/6 or simplified 4 1/2

Step-by-step explanation:

Answer:

The answer is 4.5

Step-by-step explanation: Trust me thats the answer :)

How many 5/7 cups servings are in a 5 cup container of food?

Answers

Answer:

7 servings of a 5/7 cup = 5 cups

determine the slope of the linear graph y=12x+7

Answers

Answer:

12x

Step-by-step explanation:

Draw 9:10 on a clock

Answers

Answer:

put the short hand at nine

Step-by-step explanation:

put the long hand and 10 minutes

Answer:

you can draw on your notebook and draw the clock

A pastry chef can decorate 1 cake in 7 minutes. How many cakes can he
decorate in 56 minutes?

A. 392 cakes

B. 8 cakes

C. 9 cakes

D. 63 cakes

Answers

It’s b but are you really in college because there is now way you can’t solve that

Find each unit rate.

140 mi in 3.5 h
a.
40 mi per h
c.
0.03 mi per h
b.
143.5 mi per h
d.
35 mi per h

Answers

a. 40 miles per hour

Answer:

Step-by-step explanation:

took the test

which of these are rational numbers
-7
2/3
0.7584
all of these

Answers

All of these is the answer

f(x)=6x+4. Find the inverse of f(x).

Answers

Answer:

Step-by-step explanation:

f(x)=6x+4

y=6x+4

x=6y+4

6y=x-4

y=(x-4)/6

f^-1(x)=(x-4)/6

Answer is Option-C

How to find Inverse Function:

1. First, replace f(x) with y. This is done to make the rest of the process easier.

2. Replace every x with a y and replace every y with an x.

3. Solve the equation from Step 2 for y.

(Here), Given

f(x) = 6x + 4

Let's inverse function be y.

y = 6x + 4

First step is to switch the positions of x and y.

Inverse: x = 6y + 4

x - 4 = 6y

=> y = (1/6) * (x - 4)

Option-C

Learn more about Inverse functions here:

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Answer
The multiplicative rate of change that should be in Hal’s function = 49/50=0.98
=9.8×10⁻¹

Explanation
The investment of $10,000 decreases by 2% every year. So the following year is usually (100 - 2)=98% of the previous year. This is a geometric progression.
In this case the first term = 10000
The second term = 98% × 10000 = 9800.
The common ratio = 9800/10000=49/50
The multiplicative rate of change that should be in Hal’s function = 49/50=0.98.
The equation of the exponential rate would be;
10,000ₓ0.98ⁿ.
where n is the number years.

Answers

Answer:

Answer:

1). Option (A)

2). Option (A)

Step-by-step explanation:

1). A worker bee has the mass = 0.00011 kg

In scientific notation we can convert the mass of bee as,

0.00011 =

Since 1.1 ≈ 1,

Therefore, 1.1 × 10⁻⁴ ≈ 1 × 10⁻⁴ kg

Option (A) is the answer.

2). An African elephant has a mass = 8139 kg

In scientific notation,

8139 = 8.139 × 10³

Since, 8.139 ≈ 8

Therefore, 8139 kg = 8.139 × 10³ kg

Option (A) is the answer.

Step-by-step explanation:

Hope this helps! ;)

Answer:

The investment of $10,000 decreases by 2% every year. So the following year is usually (100 - 2)=98% of the previous year. This is a geometric progression.

In this case the first term = 10000

The second term = 98% × 10000 = 9800.

The common ratio = 9800/10000=49/50

The multiplicative rate of change that should be in Hal’s function = 49/50=0.98.

The equation of the exponential rate would be;

10,000ₓ0.98ⁿ.

where n is the number years.

Step-by-step explanation:

prove that a rectangle has congruent diagonals

Answers

Answer:

Look below

Step-by-step explanation:

Lets say there is a rectangle abcd

One way is: Triangle ABC is congruent to triangle DCB

Another way is: Since a rectangle is a parallelogram too, segment ab=dc. This is because opposite sides of a parallelogram are congruent.

6 divided by 3 1/3?
1 20
2 1 4/5
3 2

Answers

Answer:

1 4/5

Step-by-step explanation:

14/5

Step-by-step explanation

In a highschool, for every 13 students that take English class, There are 16 students who take math class. How many students take math if there are 65 students in English class?

Answers

Answer:

80 students

Step-by-step explanation:

take 65 divide by 13, then x 5

Answer:

the correct answer would be 80 but if im wrong please correct me

Step-by-step explanation:

Pls help grades close today I’ll brainlest

Answers

Answer:

first

Step-by-step explanation:

Answer: first, 23

Step-by-step explanation

For the first one the unit rate is 1/23

And for the second the unit rate is 1/32

9 57
If A=
18
find 2A.

Answers

Option C ‌‌‍‌‍‍‍‍‍‍‌‍‍‍‍

Mei has 60 milliliters of a solution that is 35% nitric acid. How manny milliliters of nitric acid does the solution contain?

Answers

Answer:

21 milliliters

Step-by-step explanation:

60/100=0.6

0.6*35=21

Please help me solve this

Answers

Answer:

Step-by-step explanation:

Set up an algebraic equation

360= 2a+ 2a+ a + a

360= 6a

60= a

Since the sum of the angles is 360, they can be added together.

Congruence question will give brainliest

Answers

Answer:

Step-by-step explanation:

In the triangle below, what is the length of the side opposite the 30° angle? Picture and answers in attachment.

Answers

Answer:

The answer to this question is B.

!!!!!!!!!!!!!!!!!!!! Yes

Answers

Answer:it id blurry but i think it is c

Step-by-step explanation:

Answer:

Step-by-step explanation:

gggh

Ed use 3 2/3 cups of peanut butter and 2 cups of powdered sugar to make 1 batch of peanut butter fudge. How much more peanut butter will Ed use than powdered sugar to make 3 batches of fudge?

Answers

Answer:

Ed will use 5 more peanut butter than powdered sugar to make 3 batches of fudge(11-6=5)

Step-by-step explanation:

3 2/3 cups of peanut butter (x)

2 cups of powdered sugar(y)

for every one batch you need 2 cups, and for 3 batches you need 6 cups of powdered sugar(2*3=6)

and for every batch you need 32/3 cups of peanut butter and for three batches you need (3 2/3 *3)= 11/3 *3=33/3=11 cups of peanut butter to make the fudge

Ed will use 5 more peanut butter than powdered sugar to make 3 batches of fudge(11-6=5)

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!  PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!  PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

Answers

Answer:

4.5 would be the answer

Step-by-step explanation:

Other Questions

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