Mathematics High School

What is the value of -3+(-4+7)(2)?
O-28
O-3
O3
O 15

Answers

Answer 1

Answer:

Step-by-step explanation:

Option C 3 is the correct answer

Answer 2

Answer:

3

Step-by-step explanation:

1. Simplify -4 + 7 to 3.

-3 + 3 × 2

2.  Simplify 3 × 2 to 6.

−3 + 6

3. Simplify.

3

Related Questions

6th grade math i mark as brainliest​

Answers

sorry if you mind but why are you posting all questions here . where are you from

Answer:

Option B) 16 × 9

Option D) 2×2×2×2×3×3

...both are the correct answers.

SinA+cosB=1, A=30 degree. Find B​

Answers

Answer:

Step-by-step explanation:

The value of sin 30 = 1/2

Thus cos B = 1-1/2 = 1/2

Factorise 10x²+19x+6

Show working out please.

Answers

Answer:

(2x+3)(5x+2)

Step-by-step explanation:

10x²+19x+6

multiply to get 60

add to get 19

10x²+19x+6

(10x²+15x)(+4x+6)

factorise:

10x²+15x

5x(2x+3)

4x+6

2(2x+3)

(2x+3)(5x+2)

help lol! the explanation is on the bottom!!

Answers

Answer:

1 =80

2 =100

3 =80

4 =100

6 = 100

7 =80

8 =100

Step-by-step explanation: since 5 and 7 are the same, if u slide the bottom up to the top, 1 and 3 would be the same as 5 and 7

2,4,6,and 8 are 180-80 which equals 100

Answer:

1, 3, 5, 7 = 80°

2, 4, 6, 8 = 100°

Step-by-step explanation:

1, 3, 5, and 7 are congruent to each other

2, 4, 6 and 8 are congruent to each other

1 + 2 + 3 + 4 = 360°

80° + x + 80° + x = 360°

160° + 2x = 360°

2x = 360° - 160°

2x/2 = 200°

x = 100°

Whats 9+10
Im willing to give 25 Points. And dont say 19 CAUSE IT AINT THE ANSWER. LOL

Answers

Answer:

21

Step-by-step explanation:

Find the equation in standard form if the solutions are x={3,-7}

Answers

Answer:

x = -4

Step-by-step explanation:

x = 3 - 7

x = - (7 - 3)

x = -4

if a 11 inch wheel cost $21.35 what is the cost per square inch

Answers

Answer:

$1.94 per square inch

Ms. Davis counts 12 large boxes and 18 small boxes of pencils in the supply cabinet. Each large box contains 144 pencils. Each small box contains 24 pencils. Estimate the number of pencils. Is your estimate an underestimate or an overestimate? The find the exact answer.

Answers

Answer:

Estimated amount of pencils = 2040 pencils

Exact amount of pencils = 2160 pencils

Step-by-step explanation:

Estimated amount of pencils are calculated by:

rounding up the numbers to the nearest tens

large box= 144 pencils = 140 pencils

small box = 24 pencils = 20 pencils

Estimated number of pencils =

(12 × 140) + (18 × 20)

= 1680 + 360

= 2040 pencils

This is an underestimate

The exact number of pencils is calculated as:

(12 × 144 pencils ) + (18 × 24 pencils)

= 1728 pencils + 432

= 2160 pencils

PLEASE HELP ME ASAP!!!!!

Answers

Answer:

67º <33

Step-by-step explanation:

180-46= 134º

134/2= 67º

Answer:

x = 46

Step-by-step explanation:

The two strokes on the triangle show that those two sides are equal. Thus, the angle at the bottom left is equal to x.

x = 46°

3[ 2(10-5) +5(6-5) ] =

Answers

The answer is 45 (explained down at the image).

Answer:

45

Step-by-step explanation:

What you wanna do is just simplify the equation as much as possible:

First, the inner parenthesis:

2(10-5)=20-10=10

5(6-5)=30-25=5

And then we have:

3(10+5)=

Just simplify! :)

30+15=45

45

helpppppp!! Please ?

Answers

Answer:

I whold say that is 7 or 6. hope this helps please mark me branlenest.

AD: 6 cm
AC: 6 cm
Because we know that BD and AC are perpendicular, we know that the two triangles are right triangles. Now, just use the Pythagorean Theorem to find the missing side.

An African elephant weights 6 tons what is the weight of the elephant in pounds

Answers

Answer:

12,000

Step-by-step explanation:

Answer:

12,000 lbs (pounds)

Step-by-step explanation:

1 ton can be expressed as 2,000 pounds.6 tons would be (2,000 x 6), which is 12,000 pounds.

The first person to answer my questions wins a brainlist IF THERE RIGHT. alright

I speak without a mouth and hear without ears. I have no body, but I come alive with wind. What am I?

This riddle relies on tricking you into thinking about ears and a mouth. You get a tiny hint about wind to encourage you to think broadly and avoid the literal.

Answers

Answer:

An Echo

Step-by-step explanation:

I need help plz on this question

Answers

The answer is -1/3 hope this helped

Answer:

-1/3

Step-by-step explanation:

Mr. Greene is trying to decide which charter bus
company to use for the 8th grade Outer Banks trip.
Holiday Tours charges a down payment of $300 and $3
per mile. Diamond Tours charges a $500 down payment
and $1 per mile. Write and solve an equation to find the
number of miles when the cost of both companies will be
the same.

Answers

Answer: 100 miles

Step-by-step explanation:

300+3x=500+1x

subtract 1 from both sides

300+2x=500

subtract 300 from both sides

2x=200

divide 2

x=100

Evaluate the following expression when x = 1/2 and y = -3.


-4xy

Answers

Answer:6

Step-by-step explanation:

-4xy

-4(1/2)(-3)

-4(-1.5)

6

Solve for z. 2z − 3 = 1

Answers

Answer:

z = 2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define

2z - 3 = 1

Step 2: Solve for z

Add 3 on both sides:                    2z = 4Divide 2 on both sides:                z = 2

I need help with this​

Answers

Answer:

14

Step-by-step explanation:

add

PLEASE HELP!!! WILL GIVE BRAINLIEST!!!

Answers

Answer:

112 degrees

Step-by-step explanation:

The other 2 interior angles are (180-44)/2 which is 68.

180 (straight line) -68 = 112

Imani spent half of her weekly allowance to purchase Cyberpunk 2077 . To earn more money her parents let her wash the dishes for $15. What is her weekly allowance if she ended the week with $75?

Her weekly allowance is $

Answers

Answer:

120

Step-by-step explanation:

75-15=60. (Edit) Just realized that she spent her allowance that week, so it would be 120 because you need to multiply.

Answer:

The answer is 120$

Step-by-step explanation:

75-15=60

60x2=120

You multiply it by 2 because she spent half of her allowance on cyberpunk 2077

2. What is the solution to the equation
1/2x + 3/2(x+1) - 1/4=5?

Answers

The answer to this question is

x=15/8

1/2x+3/2(x+1)-1/4=5

1/2x+3/2(x+1)-1/4=5

(1/2x+3/2x)+3/2-(1/4)=5

4/2x+3/2-(1/4)=5

4/2x+(3/2–1/4)-(3/2–1/4)=5-(3/2–1/4)

4/2x+0=5-(3/2–1/4)

2x=5-(6/4–1/4)

2x=5-(5/4)

2x=3 3/4

2x/2=(3 3/4)/2

x=15/4(1/2)

x=15/8

1/2x+3/2(x+1)-1/4=5 (Expand the polynomial)

(1/2x+3/2x)+3/2-(1/4)=5

4/2x+3/2-(1/4)=5

4/2x+(3/2–1/4)-(3/2–1/4)=5-(3/2–1/4)

4/2x+0=5-(3/2–1/4) (Express the fractions on the right side of the equation in the common denominator 4)

2x=5-(6/4–1/4)

2x=5-(5/4)

2x=3 3/4

2x/2=(3 3/4)/2

x=15/4(1/2)

x=

15/8 or 1 7/8 as a mixed fraction or 1.875 as a decimal numeral

PROOF

If x=15/8, then the inverse of the equation 1/2x+3/2(x+1)-1/4=5 returns

2x+(6/4–1/4)=5

2(15/8)+(6/4–1/4)=5

15/4+(5/4)=5

(15+5)/4=5

20/4=5 and

5=5 proves the root (zero) x=15/8 of the statement 1/2x+3/2(x+1)-1/4=5

C.H.

1/2x+3/2(x+1) --1/4=5

1/2 (1/x+3/ (x+1) =5+1/4

1/x + 3/x+1 =(5+1/4) ×2/1

x+ 1 +3x /x (x+1) = 10+1/2 =21/2

4x+1 = 21/2 [x^2+x]

8x+2= 21x^2+21x

21x^2 +-13 x -2 =0

a =21 b= 13 c= -2

X= [13 + -- (169 -- 4×21× -2)^1/2 ] /2×21

=[13 + - ( 169 + 168 )^1/2] /2×21

Discriminat =169+168=337 >0

PLSSSS SOMEONE HELP MEEE IM STUCK the question is below

Answers

Answer:

x=8, y=73/3

Step-by-step explanation:

they ask to solve by substitution so from second equation find y

4x-3y= -41 isolate y

4x+41 = 3y divide both sides by 3

(4x+41)/3= y substitute this y in the first equation

5x+2y = -34

5x+2(4x+41)/3 = -34 distribute and find the common denominator

3*5x+(8x+82)/3 = -34

15x+8x+82=-34*3 cross multiply

23x = -102-82

x=-184/23=8

y=(4*8+41)/3=73/3 is about 24.333..

Match the sequence (term) with the correct type of sequence (definition). (4 points)

1. 15, 20, 25, 30, ...
2. 30, 27, 24, 21, ...
a. Arithmetic, common difference is 5 b. Arithmetic, common difference is -3

Answers

1 is A and 2 is B. :)))))

What percent of the students surveyed have a phone plan with texting?

16%
24%
32%
68%

Answers

It would be C because if you add all of them up it’s 50 students and the ones with the texting plan is 16 students so
16/50=32%

Hope this helps

Have a great day/night

Answer:

"C" 32%

Step-by-step explanation:

hope this helps!

i need this due at 9 30

Answers

Answer:

First, we are given that line segments AB and ED are congruent and that AE and BD bisect each other. This means that AC and CE are congruent, and they are also congruent to BC and CD. Next, angle ACB and angle DCE are congruent because of the vertical angles theorem. This means that triangle ABC and triangle EDC are congruent by the Side-Angle-Side congruency theorem, and also the Side-Side-Side theorem.

Please mark brainliest. Thanks!!!!

I hate I ready..... Can I plz have some help...?

Answers

Answer:

the third box

Step-by-step explanation:

Answer: C

Step-by-step explanation:

Reflect X axis is when the X value doesn't change, but the y value turns negative.

Reflect Y axis is when the Y value doesn't change, but the x value turns negative.

Here the point is (-11,-7)

Reflect X is (-11,7)

Reflect Y is (11,7)

Which statement is true for all functions f(x)? ​

Answers

Answer:D

Step-by-step explanation: The graph of -f(x) is the graph of f(x) reflected over the y-axis.

Please do this because this is very hard for me

Answers

Answer:

she is charged 460 dollars because she has to pay 20$ each year she doesnt pay

Step-by-step explanation:

Answer:

she is charged 460 dollars because she has to pay 20$ each year she doesnt pay

Step-by-step explanation:

she is charged 460 dollars because she has to pay 20$ each year she doesnt pay

Question 1
Select Cone in the list of shapes. Vary the angle between the intersecting plane and the vertical axis, and identify the shapes of the cross sections
formed. Try to form as many different cross-sectional shapes as possible. You might find it helpful to start with a horizontal intersecting plane and gradually increase the angle of the plane until it is vertical. Be sure to observe the effect of moving the plane without rotating it.

Answers

Answer:

Circle

Point

Ellipse

Triangle

Figure PQRS is a parallelogram.

Parallelogram P Q R S is shown. Angle Q is (x + 15) degrees and angle R is (6 x minus 10) degrees.

What are the measures of angles P and S?

∠P = 20°; ∠S = 160°
∠P = 40°; ∠S = 140°
∠P = 140°; ∠S = 40°
∠P = 160°; ∠S = 20°

Answers

∠P = 40°; ∠S = 140° answer

Step-by-step explanation:

The measures of angles of the parallelogram are ∠P = 140°; ∠S = 40°

What is a Parallelogram?

A parallelogram is a simple quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure

The four types are parallelograms, squares, rectangles, and rhombuses

Properties of Parallelogram

Opposite sides are parallel

Opposite sides are congruent

Opposite angles are congruent.

Same-Side interior angles (consecutive angles) are supplementary

Each diagonal of a parallelogram separates it into two congruent triangles

The diagonals of a parallelogram bisect each other

Given data ,

Let the parallelogram be represented as PQRS

Now , the measures of angles of parallelogram are

The measure of m∠Q = ( x + 15 )°

The measure of m∠P = ( 6x - 10 )°

where ∠Q and ∠R are supplementary to each other

For a parallelogram , same-side interior angles (consecutive angles) are supplementary

On simplifying , we get

m∠Q + m∠P = 180°

( x + 15 ) + ( 6x - 10 ) = 180

7x + 5 = 180

Subtracting 5 on both sides , we get

7x = 175

Divide by 7 on both sides , we get

x = 25

And , the measure of ∠Q = 40° = measure of ∠S

The measure of ∠R = 140° = measure of ∠P

Hence , the measures of angles of parallelogram are solved

To learn more about parallelogram click :

https://brainly.com/question/23488153

#SPJ7

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