Evaluate the expression 8 +3 +(-12) +4=

Answers

Answer 1
Hopes this helps:

Answer: 3

1. Remove parentheses.
8 + 3 - 12 + 4

2. Simplify 8 + 3 to 11.
11 - 12 + 4

3. Simplify 11 - 12 = -1.
-1 + 4

4. Simplify.
3

Related Questions

can sum1 please help wit dis look at pic​

Answers

Bd is 12 bc of Pythagorean theorem

Identify the center and radius of the circle with the following equation: [tex]\displaystyle(x+3)^2+(y+\frac{3}{2})^2=4[/tex]

Answers

Hey there,

The equation is already written in circle equation form but if needed, here is what it will look like when it isn't simplified.

(x - (-3))² + (y - (-3/2))² = 2²

With this, the circle has a center at (-3, -3/2) and a radius of 2.

Best of Luck!

Step-by-step explanation:

Hey there!

Given;

The equation of a circle is:(X+3)² + (y+3/2)² = 4.

Comparing the equation with (x-h)²+(y-k)² = r², we get;

Centre (h,k) = (-3,-3/2)

Radius (r) = 2 units.

Hope it helps!

In the parallelogram below, AC = 18, BD = 30, and BC = 15. What is the length of EC?

Answers

Answer:

30

Step-by-step explanation:

If one figure is translated, rotated and dilated to create its image, the two figures will be __________ .
Group of answer choices

translation

congruent

similar

opposite
PLEASE ANSWER ASAP

Answers

Similar is the answer because no matter the transformation done to the figure it’s always going to be similar to the image(after transformation figure) not necessarily congruent but similar

Helppppppppppppppppppp

Answers

the answer to the problem is
x=3

Answer:

x = 3

1. Subtract 5 from both sides of the equation.

6 + 5 = 3 + 1 4 6 + 5 − 5 = 3 + 1 4 − 5

2. Simplify

Subtract the numbers 6 = 3 + 9

3. Subtract 3x from both sides of the equation.

6 = 3 + 9 6 − 3 = 3 + 9 − 3

4. Simplify.

Combine like terms - 3x = 9

5. Divide both sides of the equation by the same term

3 = 9 3 3 = 9 3

6. Simplify

Cancel terms that are in both the numerator and denominator Divide the numbers = 3

PLZ HELP IF ITS CORRECT I WILL MARK U BRAINLIEST

Answers

Answer:

The answer is 45

Step-by-step explanation:

First, you find what is half of 30 by dividing 30 by 2

30/2 = 15

Then you add 15 to 30 since you have to increase it by 1/2

30 + 15 = 45

I hope this helped and have a great day!

The correct answer is 45

b for which -x^2+8x+20=b will have no real roots​

Answers

Answer:

Step-by-step explanation:

-x² + 8x + 20 = b

-x² + 8x + 20 - b = 0

a = -1 ; b = 8 ; c = 20 - b

 There is no real roots.

So, b² - 4ac < 0

Plug in a, b and c values

8²- 4(-1)(20-b) < 0

When we multiply (-1) and (-4), we will get 4

64 + 4(20 - b) < 0

64 + 4*20 - 4b < 0

64 + 80 - 4b < 0

144  - 4b    < 0

Subtract 144 from both sides

-4b < -144

Divide both side by -4 and when we are dividing by (-4), < will change to >

b > -144/-4

b > 36

So, when value of b is greater than 36, the equation will have no real roots.

Alyssa is going to invest in an account paying an interest rate of 4.3% compounded daily. How much would Alyssa need to invest, to the nearest dollar, for the value of the account to reach $330 in 17 years?

Answers

Answer:

159

Step-by-step explanation:

158.877856673=P

round:

P=159

Answer:

159  

Step-by-step explanation:

Complete the equations below.

Answers

Answer:

3.64 ÷ 7 = 364 hundredths ÷ 7

3.64 ÷ 7 = 52 hundredths

3.64 ÷ 7 = 0.52

Step-by-step explanation:

16/21 × 20/24 × 28/15​

Answers

Answer:

32/27

Step-by-step explanation:

Answer:

32/27

Step-by-step explanation:

16/21 × 20/24 × 28/15

16/21 × 5/6 × 28/15

16/3 × 5/6 × 4/15

16/3 × 1/6 × 4/3

8/3 × 1/3 × 4/3

32/27 is your answer

10. Tim bought two copies of the same hardcover book and three
copies of the same paperback book cost $118. Sally bought three of
the hardcover books and two of the paperback books for $137. Find
the cost for each type of book.

Answers

Answer:

Let hardcover book be x

Let paperback book be y

2x+3y=$118....Equation 1

3x+2y=$137.... Equation 2

Solve for x and y using simultaneous equation

Using elimination method

2x+3y=118......×3

3x+2y=137......×2

6x+9y=354

6x+4y=274

9y-4y=80

5y=80

y=80÷5=16

substituting y=16 into equation 1

2x+3(16)=118

2x+48=118

2x=70

x=70÷2=35

Therefore hardcover costs $35 each

paperback cover costs $16 each

Convert the equation –9x2 + 25y2 – 100 – 125 = O into standard form.

Answers

Answer:

C. (y-2)^2/9 - x^2/25 = 1

Step-by-step explanation:

Edge 2021

Cuánto tiempo debe transcurrir para que un capital de $3,000.00 alcance un monto de $7,000.00, si la inversión se hizo con 5% de interés simple mensual?

Answers

Answer:

27 years approx

Step-by-step explanation:

Given data

Principal P= $ 3,000

Final amount A= $ 7000

Rate r= 5%

The simple interest expression is

A=P(1+rt)

substitute and solve for t

7000=3000(1+0.05t)

7000=3000+150r

7000-3000=150r

4000=150t

t= 4000/150

t= 26.66

Hence, the time is 27 years approx

Complete the following
a)
3
5
20
b)
11
25
30
6.

Answers

Answer:

The answer should be B

angelica owns 3 1/4 acres of land . she grows cabbage on 3/4 of the land. on how many acres of land does angelica grow cabbage

Answers

Answer:

2.4375 acres for cabbage

Step-by-step explanation:

write the following number in standard form plezz

7.6 x 10^3

Answers

10^3=1,000

Anything multiplied by 1 is that number. In this case, multiply 7.6 by 1, then add 3 zeroes.

---

hope it helps

Answer:

7,600

Step-by-step explanation:

when you have to multiply by 10 to a power, you just move the decimal to the left as many times as by the power

which of the following could be the lengths of the sides of a triangle?
a. 1,2,1
b.2,3,1
c.3,5,4
d.7,15,7

Answers

Answer:

C

Step-by-step explanation:

The general rule is that any two leg lengths must exceed the third.

A) won't. 1 + 1 = 2. The 2 ones lay flat across the 2.

B) 2 + 1 = 3. Won't work for the same reason as A

C) works fine. Any 2 will exceed the third.

D) can't happen. 7 + 7 < 15.

who's holika & who is bhakt prahlad ????​

Answers

Answer:

Hello There!!

Step-by-step explanation:

The answer is that there was once a demon king called Hiranyakashyap, who believed that he was more powerful than the all the gods and he wanted everyone like all the people to worship him but his son, Prahlad, did not worship his father.

hope this helps,have a great day!!

~Pinky~

What scale factor was used in the dilation of ABC to FED? ​

Answers

Answer:

SF= 2

Step-by-step explanation:

Side AB had the legnth of 4

the congruent side of EF has a length of 8

therefore the original shape doubled in size

(4x2=8)

Given the roots of 4 and -2 find the equations of the quadratic.
4 points

Answers

Answer:

p(x) = x² - 2x -8

Step-by-step explanation:

We need to find the quadratic equation with roots 4 and -2 , we know that if a and ß are the roots of equⁿ , then the polynomial is ,

[tex]\implies p(x) =k[ x^2-(\alpha + \beta)x+\alpha\beta] [/tex]

Where k is constant . Substitute respective values ,

=> p(x) = k [ x² - ( a + ß )x + aß ]

=> p(x) = k [ x² - ( 4-2) x + (4)(-2) ]

=> p(x) = k [ x² -2x - 8 ]

If k = 1 ,

=> p(x) = - 2x - 8

find the value of the variable and the length of each chord.if necessary, round your answers to the nearest tenth

Answers

Answer:

X = 2.4

MN = 7

JL = 7.4

Step-by-step explanation:

Determine the value of y-x ( •︠ˍ•︡ ) ​

Answers

Answer:

822

rhdjd dbd fn f f fnf f g g

Can someone help me please

Answers

Answer:

x =4

Step-by-step explanation:

Vertically Opposite Angles,

[tex]12x - 8 = 40 \\ 12x = 40 + 8 \\ 12x = 48 \\ x = 48 \div 12 \\ = 4[/tex]

mathematical literacy
[tex]79 \times 85[/tex]

Answers

Answer:

6715

Step-by-step explanation:

I hope this helps, :)

Ayyy bro so it’s 6715, you could of done this On a calculator

HELP PLS ASAPP !!! :(

Answers

The Himalaya stay between Indian and China

Y=x-1 what's the slope please help me I have a test!! :/

Answers

Answer:

you need to add them toether since there is only one .

Step-by-step explanation:

1=y-x

After choir practice, Jamal and Bettina shared a pizza that was cut into 10 equal slices. Jamal ate 1/2 of the pizza, and Bettina ate 1/5 of the pizza. What percentage did Jamal and Bettina eat altogether?

A. 20%
B. 50%
C. 70%
D. 100%

Answers

Answer:

C 70%

Step-by-step explanation:

It is 70% because you are see what is it all together and so its 70%

Which expression is equivalent to -28 x 2 + 35 x ?

Answers

Answer:

35+28=31

Step-by-step explanation:

The expression (3 + 6i) + (5 - 10i) simplified is

Answers

Answer:

The answer is 8 - 4i

you collect the like terms

The answer is 8 - 4i

15+(√9 *7)/3
Simplify

Answers

Step-by-step explanation:

15+(3×7)/3

simplify by 3

15+7

22

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