A student evaluated −4 + (−9 1/2) and got an answer of 5 1/2. What might the student have done wrong?

Answer:

0

Step-by-step explanation:

Assuming there is no typo in your question, the slope is 0 because the function is a horizontal line.

Answer:

Step-by-step explanation:

Use PEDMAS  method

P - Parenthesis

E - Exponents

D - Division

M - Multiplication

A- Addition

S -Subtraction

[tex]\frac{1}{4}(15-6) + 3^{3}[/tex] ÷ 12  = [tex]\frac{1}{4}*9+3^{3}[/tex] ÷ 12     {Operation inside parenthesis}

                              [tex]= \frac{1}{4}*9+27[/tex]÷ 12   {Exponents}

                             [tex]= \frac{9}{4} + \frac{27}{12}\\\\\\= \frac{9*3}{4*3} + \frac{27}{12} \\\\\\= \frac{27}{12} + \frac{27}{12}\\\\\\=\frac{27+27}{12}\\\\\\=\frac{54}{12}\\\\=\frac{9}{2}\\\\= 4\frac{1}{2}[/tex]  

Answer:

the answer is c. 4 1/2

Step-by-step explanation:

I guessed c got it right

Answer:

y = 1

I hope this helps!

Answer:

1: 90,2: 136, 3: 70, 4: 35

Step-by-step explanation:

Answer:

The slope is 1 and the y-intercept is 3.

Step-by-step explanation:

Answer:

4.5 miles

Step-by-step explanation:

3/2=1.5 . 7-/2 = 35.  35 x 3 = 105 . 1.5 x 3 = 4.5

Step-by-step explanation:

Answer:

Exponential Function; base = 3; initial value = - 6.1

Step-by-step explanation:

Answer:x=-4

Step-by-step explanation:

First distribute -5 to x+4 so -5•x and -5•4 get you -5x and -20 then bring every thing down

Now you have

-12-5x-20=3x

Then combine like terms which are -12 and -20 giving you -32

-32-5x=3x and 5 to bot side now you have

-32=8x then divide by 8 on both side giving you -4

Answer:

at 3

Step-by-step explanation:

because iin a number line we have positives and negatives if rlR is at nine then S is at 3

Answer:

56=6.25x+4x

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

Wherever we see an x, we just input 4 to find f(4)

f(4) = 2(4) - 1 = 8 - 1 = 7

Hope this helps!!!!!!!

[tex]6 - 3x = 5x - 10x + 6[/tex]

[tex]6 - x = - 5x + 6[/tex]

[tex]6 + 5x = 6 - 3x[/tex]

[tex]6 = 6 - 3x + 5x[/tex]

[tex]6 = 6 + 2x[/tex]

[tex]2x = 6 - 6[/tex]

[tex]2x = 0[/tex]

Product of two numbers is equal to 0 if at least one of them is 0 . Since 2 is not equal to 0 , x must be equal to 0 .

Which means :-

[tex]x = 0[/tex]

Therefore , the value of x = 0.

Answer:

1/2

hope this helps*

Step-by-step explanation:

divide the fraction by 8

Answer:

D

Step-by-step explanation:

[tex]\sqrt{x}[/tex] only takes positive inputs and only outputs positive integers

Answer:

Hello, I just took the test today. I will attach a screenshot. I hope I am not too late answering your question.

This question stumped me too at first. I hope this helps!

The missing parts that correctly complete the proof are;

2) Definition of a bisector

4) ∠BXP ≅ ∠BYP.

5) Reflexive property of congruence.

6) AAS congruence theorem.

7) Corresponding sides of congruent triangles are congruent.

We are given;

Point P is on the bisector of ∠ABC.

Read more at; https://brainly.com/question/11357763

The raise was 5% which is 0.05 as a decimal.

For his new rate his original rate was multiplied by 1.05 ( original + 5%)

To find original amount, divide new amount by 1.05:

252 / 1.05 = 240

His original pay was £240

You can check by multiplying the original pay by 5% and adding:

240 x 0.05 = 12

240 + 12 = 252

Answer:

The correct answer is the third one

plz mark me brainsliest!!!!!

Answer:

The answer would be 15yd^2.

Step-by-step explanation:

The area of a triangle is found by...

A = (L*H) / 2

L = length

H = height

Answer:

15.0 yd

Step-by-step explanation:

 A=  h b/2 = 3·10/2=15

Answer:

x=-1

Step-by-step explanation:

You add like terms until you get your equation.

Answer:

x = -1

Explanation:

3(-1) - 10(-1) + 5 = 5(-1) + 17

-3 + 10 + 5 = -5 + 17

(add first before subtracting!)

12 = 12

So, the first answer, x = -1, is the correct answer.

Please mark me Brainliest! I need it to move onto the next level.

Answer:

The investment of $40,000 is worth $94,529.80 now

Step-by-step explanation:

Compound Interest

It occurs when the interest is reinvested along with the principal, rather than paying it out. When it happens interest in the next period is then earned on the principal sum plus previously accumulated interest.

To calculate the final amount we use:

[tex]{\displaystyle A=P\left(1+{\frac {r}{n}}\right)^{nt}}[/tex]

Where:

A = final amount

P = initial principal balance

r = interest rate

n = number of times interest applied per time period

t = number of time periods elapsed

The investment is for t=6 1/4 years = 6.25 years with an initial balance of P=40,000 at a rate r=14% = 0.14 compounded quarterly. Since there are 4 quarters per year, then n=4.

Applying the formula:

[tex]{\displaystyle A=40,000\left(1+{\frac {0.14}{4}}\right)^{4*6.25}}[/tex]

[tex]{\displaystyle A=40,000\left(1+0.035\right)^{25}}[/tex]

A=$94,529.80

The investment of $40,000 is worth $94,529.80 now

Answer:

D

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

I did the test in MIddle school and its in the lesson that's where I found it so next time ur stuck on a question look at the lesson then if your stilll stuck ask brainly k?

Answer:

-40

Step-by-step explanation:

pls give me brainleist

Answer: y = -2x + 7

Step-by-step explanation:

Answer:

y= -2x+7

Step-by-step explanation:

We need to keep y on one side of the equation.

2x+y= 7

=2x     -2x

y= -2x+7

Hope this helps!

Answer:

Yes, 10227 is a rational number

Step-by-step explanation:

10227 is whole number, an integer, a counting number. For a number to be rational it has to be a integer, a counting number, a whole number, a fraction, and a terminating decimal. A decimal that repeats like 3.3333 is also rational because it can be predicted. Pi or 3.14 is not predictable

Answer:

Equation: (29x + 12)° + (15x - 8)° = 180°

x = 4

m∠ 5 = 52°

Step-by-step explanation:

Given:

m∠ 1 = 29x + 12,

m∠ 5 = 15x - 8

Since all lines that appear are parallel, therefore, opposite angles of the quadrilateral are congruent.

Therefore, m<1 = m<4 = 29x + 12

m<4 + m<5 = 180° (linear pair)

(29x + 12) + (15x - 8) = 180° (substitution)

The equation above is what we would use in solving for x. Let's solve for x:

29x + 12 + 15x - 8 = 180

Collect like terms

44x + 4 = 180

Subtract 4 from both sides

44x = 180 - 4

44x = 176

Divide both sides by 44

x = 176/44

x = 4

m∠ 5 = 15x - 8

Plug in the value of x

m∠ 5 = 15(4) - 8 = 60 - 8

m∠ 5 = 52°

Answer:

0.5, 3/5, 0.78

Step-by-step explanation:

Answer:

0.5, [tex]\frac {3}{5}[/tex], 0.78

Step-by-step explanation:

0.5= 50%

[tex]\frac {3}{5}[/tex]=60%

0.78=78%