Mathematics High School

mathematics sat question

Mathematics Sat Question

Answers

Answer 1

Answer: A) [tex]a^{2}[/tex] + a

add the two equations together to get A.

the ones cancel eachother out and you cant add [tex]a^{2}[/tex] to a

Answer 2

Answer:

A) a^2 + a

Step-by-step explanation:

So the problem says "sum" which means you have to add the expressions

(a^2) - 1 and a+1

Work:

((a^2) - 1) + (a + 1)

We can simplify only the constants

(a^2) + a + 1 - 1

(a^2) + a

so the answer is A

Related Questions

Can anyone help out with this algebra 1 question? It’s 2 am and I’m just exhausted here man, I’d really appreciate it.

Answers

Answer:

y = 3x/4 + 3

Step-by-step explanation:

y = mx + b

b = 3

(-4,0), (0,3)

m = 3/4

-
Is x + 2 a factor of f(x) = x5 – 3x4 - 3x3 + 9x2 - 4x +12?

please help asap

Answers

Answer:

x=-2.01970690

Step-by-step explanation:

Yes it is a factor

Answer:

Yes, x+2 is a factor of f(x)

Step-by-step explanation:

-2 | 1   -3   -3    9   -4    12

   ___-2_ 10_-14_10  -12

     1   -5    7    -5   6  | 0

Since [tex]\frac{x^5-3x^4-3x^3+9x^2-4x+12}{x+2}=x^4-5x^3+7x^2-5x+6[/tex] with no remainder, then x+2 is a factor

Lea bought 225 flowers and 12 vases she put about the same number of flowers in each vase which is the best estimate for the number of flowers in each vase

Answers

Answer:

18.75 or around 19

Step-by-step explanation:

You simply divide 225 by 12 and get 18.75.

Write 5^2/5 square root 5 as a single power of 5

Answers

I think it’s just 1 if it is a single power

hope you like my answer its -15

please make me brainliest

simplify the folowing equations


(x2 + 2xy + y2)(x+1)


x3 + x2 +2x2y +xy2 + y2 + 2xy


(6x -8)(2x -3)


(-2x – 1) (9x +2)


(2x2 - 4xy + 2y2) (3x-4)


6x3 – 12x2y + 6xy2 – 8x2 + 16xy-8y2


must show steps

Answers

Use FOIL method...

1. (x^2 + 2xy + y^2)(x+1)

x^3 + 2x^2y + xy^2 + x^2 + 2xy + y^2

Add Like Terms

There are no like terms.

2. x^3 + x2 +2x2y +xy2 + y2 + 2xy

3. (6x -8)(2x -3)

4. (-2x – 1) (9x +2)

5. (2x^2 - 4xy + 2y^2) (3x-4)

6. 6x^3 – 12x^2y + 6xy^2 – 8x^2 + 16xy-8y^2

There were 9.782 visitors to the park
last month. To the nearest thousand,
about how many people visited the
park last month?

Answers

It should be 10000
So 10000 people visited last month

3/7x2/3 tyyyyyyyyyyyyyyyyyyyyyyyyyyyy

Answers

Answer:

2/7

Step-by-step explanation:

3x2=6

7×3=21

6/21 = 2/7

12gfdyhgvkjhfvkuhj ,jvhgctkgdcfmtghjm

Answers

Answer:

1/2 POUNDS

Step-by-step explanation:

3/8 - LIGHTEST SQUASH

7/8 - HEAVIEST SQAUSH

SUBTRACT THEM YOU GET 4/8

4/8 SIMPLIFIED IS 1/2

THUS THE SQUASH ARE 1/2 POUND DIFERENCE

Suppose the temperature outside is dropping 3 degrees each hour. How much will the temperature change in 8 hours? is it negative

Answers

Answer:

The temperature will drop 24 degrees

Step-by-step explanation:

-3 degrees/hour for 8 hours

-3 x 8 = -24

It is negative.

Answer:

In 8 hours time it will be drop 24 degrees

8x3 = 24

8 1/2- 1 1/4? Show work

Answers

Answer:

[tex]7\frac{1}{4}[/tex]

Step-by-step explanation:

Change to improper fraction.

[tex]8\frac{1}{2}[/tex] ⇒ [tex]\frac{17}{2}[/tex]

[tex]1\frac{1}{4}[/tex] ⇒ [tex]\frac{5}{4}[/tex]

Find the least common denominator (LCD) of the two fractions. ⇒ 4

[tex]\frac{34}{4}[/tex] - [tex]\frac{5}{4}[/tex] = [tex]\frac{29}{4}[/tex]

Convert to a mixed number.

[tex]\frac{29}{4}[/tex] ⇒ [tex]7\frac{1}{4}[/tex]

Hence, [tex]8\frac{1}{2} - 1\frac{1}{4} = 7\frac{1}{4}[/tex]

Mark is cutting construction paper into rectangles for a project. He needs to cut one rectangle that is 12 inches × 13 1/3 inches. He needs to cut another rectangle that is 10 1/4 inches x 10 1/3 inches
How many total square inches of construction paper does Mark need for his project?
PLS I NEED TO GO TO SCHOOL PLS

Answers

Answer: 265.9167 square inches (rounded)

Step-by-step explanation:

Shoot, okay if this is wrong, shame on me:

All you do is find the areas of each rectangle and add them together.

(12 × 13 1/3) + (10 1/4 x 10 1/3) = 265.9167 (rounded) square inches. Or as a fraction: 3191/12

Expand this expression by using the distributive property. 4( -2g + 4 -3t)

Answers

Answer:

-8g + 16 + 12t

Step-by-step explanation:

multiply 4 with -2g

multiply 4 with 4

multiply 4 with -3t

How many points of intersection are on the graph of the following system?

lbrace y = x2 + 3x − 7
y − x = 9


The linear-quadratic system has
(select)
points of intersection.

Answers

Answer:

2 points of interception of (3.12 , 12./12) and (-5.12 , 3.87)

Step-by-step explanation:

y − x = 9

y = x + 9

x+9 = x²+3x-7

x²+2x-16=0

x = (-2±√2²-4(1)(-16)) / 2 = (-2 ± √68) / 2 = -1 ± √17

x = 3.12 or x = -5.12

y = 12.12 or y = -3.87

(3 m^6 n^2)^3 * 2mn^4

Answers

(3m^6 n^2)^3 • 2mn^4

9 m^18 n^6 • 2mn^4

answer: 18 m^19 n^10

pls help me with this math problem ​

Answers

Answer:

Graph D (last graph)

Step-by-step explanation:

y + 2 > 5

first subtract 2 from both sides

y > 3

Now that we know the solution to y we can plot it. We know it must start at 3, but also not be included because our solution is not ≥. This means we have an open box at 3 and an arrow in the positive direction.

nothing I can't say english :[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[

Answers

Answer:

????????????????????????????????

If a man can walk 40 km in 2 days. how many km can he travel in 7 days?
​

Answers

Answer:

280

Step-by-step explanation:

If he can walk 40 in 2 days, multiply 7 by 40 to get 280 km total

(On Emma's last paycheck, she earned 15.5% commission on her sales of $10,500 for the month. What is the commission earned? Round to the nearest cent.

Answers

Answer:

Emma earned 1627.5

Step-by-step explanation:

Answer:

$1,627.50 in commission earned

Step-by-step explanation:

Convert 15.5% to a decimal.

10500 x 0.155

Multiply  10500 by 0.155

1627.5

You run 6 miles in one hour and 12 miles in two hours.
a. 2 miles per hour
b. 6 miles
c. 6 miles per hour
d. 2 hours​

Answers

If you run 12 miles in 2 hours then it would be 6 miles per hour!
12/2 = 6

SOMEONE WHO'S GOOD AT MATH PLEASE ANSWER THIS ASAP TODAY WILL GIVE BRAINLIEST

Answers

Answer:

1-(-9)=10

Step-by-step explanation:

A family spent $169 at the movies. Admission tickets cost $12 apiece, and a bucket of popcorn costs $7 which equation written in standard form.



How many buckets of popcorn could be bought if a family buys 7 admission tickets?

Answers

Answer:

12

Step-by-step explanation:

7 (number of tickets) times 12 (cost of ticket) = 84     169 (total spent) - 84 (total ticket price) = 85   85 divided by 7 (price of popcorn) = 12.14 round down as they wouldn't have enough money to buy more than 12 popcorns.

Write the equation of the line in fully simplified slope intercept form

Answers

Y= -1/2-7
Slope intercept form is y=mx+b
‘m’ is your slope and ‘b’ is your y-intercept !

Answer:

y = -0.5x - 7 or y = -1/2x - 7 (both are same)

Step-by-step explanation:

m = slope

slope = y2 - y1 / x2 - x1

-9 - (-8) / 4 - 2 = -1/2 = -0.5

m = -0.5 

b = y-intercept

b = -7

y = mx + b

y = -0.5x + (-7)

y = -0.5x - 7

(negative slope)

Which expression should appear on Line 3?
3,000 + 600 + 42
3,000 + 60 + 13
3,000 + 60 + 42
300 + 60 + 42

Answers

Answer:

3000+60+42

Step-by-step explanation:

the order of operations says to multiply and divide from left to right before adding or subtracting from left to right. Putting the numbers in parenthesis helps.

(500*6)+(10*6)+(7*6)

(3000)+(60)+(42)

3000+60+42

Hope this helps!

Find the missing side of each triangle. Round your answers to the nearest tenth if necessary. (Please Show your work)

Answers

Answer:

8.8 yd

Step-by-step explanation:

Use Pythagorean:

[tex]x=\sqrt{5.5^2+6.9^2} =\sqrt{77.86} =8.8[/tex] yd (rounded)

please answer this write

Answers

Answer:

k

Step-by-step explanation:

sorry if its wrong


hey anyone wanna check my answer(s)??

Answers

7/24 is the answer it’s basic math

in a class of 37 students, 24 study history, 15 study Geography and 6 other study neither History nor Geography. find how many students study both history and Geography brainly

Answers

Answer: 16

Step-by-step explanation: your welcome

Answer:

39

Step-by-step explanation:

15 students study Geography and 24 study history.

15+24=39

The velocity-time graph for a cycle is shown

Answers

Answer:

a) 100m

b) 2m/s

Step-by-step explanation:

a)==>> 2+4+6+8+10(8) = 100m

b)==>> Variable "a" = change OVER time ([tex]\frac{change}{time}[/tex]) = 8m/4s = 2m/s

Mason loves collecting sea glass from the beach. He recorded the weight of each jar full of sea glass. If he decided to distribute the sea glass equally among the jars, how much would each jar weigh?

Answers

First add up all the weights. 3.5 + 2.75 + 2.75 + 2.25 + 1.25 + 1 = 13.5 then divide by the # of jars. 13.5/6 = 2.25 lbs per jar

If the perimeter of the polygon below is 52 ft, solve for x, and identify the length of each side in the corresponding spaces below (figure not drawn to scale). Don't forget to include units in your answer!

Answers

Answer:

x = -3

a) 6 ft

b) 7 ft

c) 9 ft

d) 11 ft

e) 5 ft

f) 14 ft

Step-by-step explanation:

set up the equation

-2x + 4 - x +x +12 + 3x + 20 + 2x + 11 + 7x + 35 = 52

combine like terms

10x + 82 = 52

single out the variable

10x = -30

x = -3

substitute x in all the following equations

a)  -2(-3) = 6

b)  4 - -3 = 7

c)  -3 + 12 = 9

d)  3(-3) + 20 = 11

e)  2(-3) + 11 = 5

f)  7(-3) + 35 = 14

have a lovely day <3

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What was one of the main factors leading to the fall of the Zhou dynasty?A. Aryan settlers began to destroy Zhou culture.B. Farmers rose up in protest against the Zhou emperor.C. The Zhou lost major battles to foreign invaders.D. The Zhou exercised tight control over local leaders.BV what are the stages of mitosis which type of memory is permanently installed on your computer and attached to the motherboard? nothing I can't say english :[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[ simplify the folowing equations(x2 + 2xy + y2)(x+1)x3 + x2 +2x2y +xy2 + y2 + 2xy(6x -8)(2x -3)(-2x 1) (9x +2)(2x2 - 4xy + 2y2) (3x-4)6x3 12x2y + 6xy2 8x2 + 16xy-8y2 must show steps How many points of intersection are on the graph of the following system?lbrace y = x2 + 3x 7y x = 9The linear-quadratic system has (select) points of intersection. 3/7x2/3 tyyyyyyyyyyyyyyyyyyyyyyyyyyyy please I need help from somebody for this question. it's really confusing. thanks What is Manifest Destiny? american soldiers hotly debated the issue of ln which way is plantation farming different from subsistence farming 18.What are the similarities between a mixture and a solution? Mason loves collecting sea glass from the beach. He recorded the weight of each jar full of sea glass. If he decided to distribute the sea glass equally among the jars, how much would each jar weigh? What structural arrangement usually permits the greatest freedom of movement in a joint? Can you plssssssssssss help meCan you do plsssssssss help meeee Technician A says that a diode only allows currentflow in one direction? Technician B says a diodesimply regulates current flow in both directions.(A) A only.(B) B only(C) Both A and B.A(D) Neither A nor B. which world leader had an egg thrown at him at a food fair? (3 m^6 n^2)^3 * 2mn^4 Somebody help me please On vacation we went to a bike rental shop. They charged a $12fixed fee plus $7 an hour for renting a bike. I paid $64 dollars to rent a bike. How many hours did I pay to have the bike checked out? Write out equation and solve. Show work