Mathematics High School

I've been stuck on this for like 20 minutes ;-;

Answers

Answer 1

Answer:

3+2

Step-by-step explanation:

Answer 2

Answer:

3+2

Step-by-step explanation:

Related Questions

True or false please help due in a couple of minutes!!!!

Answers

I’m pretty sure it’s false I could be wrong though

Answer:

false

the shape is different

If bc+ad=b solve for a

Answers

Answer:

Step-by-step explanation:

Answer:

a = c/d

Step-by-step explanation:

ad = b-bc

ad = c

a = c/d

Solve the system of equations using elimination.
3x-2y=5
x+2y=3

Answers

Answer:

x = 2

y = 1/2

Step-by-step explanation:

3x - 2y = 5

x + 2y = 3

We don't have to mutiply anything because we have values that we can eliminate.-2y and 2y can be crossed off becuase they have the same value and plus and minus cancel out. We can add instead of changing the signs.

4x = 8

x = 2

Now we know that x = 2. To find y we have to plug in x into one of the equations. I am going to use x + 2y = 3.

2 + 2y = 3

2y = 1

y = 1/2

Now we figured out y. I hope I helped!

This one also thx PLZZ be right

Answers

Answer:

D. x = 2

Step-by-step explanation:

[tex]\frac{1}{2} x+3=\frac{5}{2} x-1[/tex][tex]\frac{1}{2} x-\frac{5}{2 }x=-1-3[/tex][tex]-\frac{4}{2} x=-4[/tex][tex]-\frac{4}{2} x (-\frac{2}{4} )=-4(-\frac{2}{4} )[/tex][tex]x = -4(-\frac{2}{4} )[/tex][tex]x=2[/tex]

Answer:

x=2

Step-by-step explanation:

1/2x+3=5/2x-1

-1/2x -1/2x

3=4/2x-1

+1 +1

4=2x

/2 /2

2=x

What is the solution to this subtraction sentence?
-5/6 – (-1/2) = ________
A. -4/3
B. -5/6
C. -1/2
D. -1/3

Answers

Answer:

D: -1/3

Step-by-step explanation

Answer:

The answer is D.-1/3

Step-by-step explanation:

I took the quiz

GIVING BRANLIEST!! Write the following in standard form -8.041x10^-6 PLEASE HELPP!!.

Answers

Answer: -8.041x10-6= -86.41

Step-by-step explanation:

Answer:

-0.000008041

Step-by-step explanation:

-8.041 * 10^-6

First, convert the negative exponent.

-8.041 * 1/10^6

Then, multiply. (Using a calculator, preferably.)

THe answer is: -0.000008041

The regular price of a CD player is $89. It is on sale at a 25% discount. What is the sale price of the CD player?

Answers

Answer:

$66.75

Step-by-step explanation:

You would multiply $89 by .25 to find out what 25% is, then subtract that from $89 to get $66.75

Answer:

$66.75

Step-by-step explanation:

Create an expression that would represent the area of a triangle.

Answers

Answer:

a = 1/2 (15 *5)

Step-by-step explanation:

a = 1/2 (b * h)

1/2 (15 *5)

Answer:

1/2 (15x5)

Step-by-step explanation:

Area = 1/2bh

i suck at word problems i don’t understand both of these

Answers

Answer:

c and a

Step-by-step explanation:

HELPPPPPPP BRAINLIESTTT

Answers

Answer:

7n+5 would get u the perimeter because you can add like terms together so I added all the ns to get that- hope that helps you ❣️

Step-by-step explanation:

A statistics teacher announces to the class at the beginning of the semester that there is a 40% chance that a randomly chosen student will finish the semester with an A in the class and there is a 60% that a randomly chosen student will get an A on a test during the semester. Is the probability that a randomly chosen student receives an A in the class and an A on a test during the semester equal to 0.24? Yes, because the chance of getting an A on a test and getting an A in the class are mutually exclusive. Yes, because the chance of getting an A on a test and getting an A in the class are mutually exclusive. No, because the chance of getting an A on a test and getting an A in the class are not independent. No, because the chance of getting an A on a test and getting an A in the class are not independent. Yes, because the chance of getting an A on a test and getting an A in the class are independent. Yes, because the chance of getting an A on a test and getting an A in the class are independent. No, because the chance of getting an A on a test and getting an A in the class are not mutually exclusive.

Answers

Answer:

c. No, because the chance of getting an A on a test and getting an A in the class are not independent.

Step-by-step explanation:

brainly?

The highest score on an algebra test was 42 points more than the lowest. When added together, the lowest and the highest score was 154. Find both the lowest and the highest score.

Answers

Answer:

lowest: 56 Highest: 98

Step-by-step explanation:

Bianca set the thermostat in her house to 87°F, which was 13° warmer than the temperature outside. What temperature was it outside?

Confused.

Answers

Answer: 74 degrees Fahrenheit

Step-by-step explanation: the temperature outside was 13 degrees lower than 87 degrees, so 87 - 13 = 74

Answer:

74 degrees F

Step-by-step explanation:

Subtract the 87 - 13

This is because there are +13 degrees more than outside. So if you add 74 + 13 that were added by the thermostat, you get 87 degrees. Does it make sense?

Just subtract :)

answer and ill give brainliest

Answers

Answer:

x = 5 22/24 OR x = 5 11/12

Step-by-step explanation:

x - 3/4 = 5 1/6

To solve this we mush use inverse operations

x - 3/4 + 3/4 = 5 1/6 + 3/4

x = 5 22/24

x = 5 11/12

To add the fractions there has to be a common denominator.

1/6 x 4/4 = 4/24

3/4 x 6/6 = 18/24

Keep denominators the same and add the numerators.

If your teacher wants the answer not simplified the answer is

x = 5 22/24

If your teacher wants it simplified the answer is

x = 5 11/12

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

I’m really bad at geometry pls help! Thanks

The right hexagonal pyramid
has a hexagon base with equal-length sides. The lateral
faces of the pyramid are all triangles (that are exact copies of one another) with
heights of 18 ft. Find the surface area of the pyramid.

Answers

Answer:

Lateral area of the pyramid = 72 unit²

Step-by-step explanation:

Lateral surface means side part of pyramid. So we nee need to find area of 6 triangles with base 4 and height 6.

Lateral area of the pyramid = 6 x Area of 6 triangles with base 4 and height 6

Hope this helped...

Solve the system of linear equations by substitution.
1/2x +y=-4
y = 2x + 16

Answers

sub 2x+16 for y into the 1st line so
1/2x+2x+16=-4 now find x
which is x=8 not plug in -8 for x, does not matter which one
you will get y=0
answer•
x=-8
y=0
(-8,0)

Answer:

y = 0

x = -8

Step-by-step explanation:

1/2x + y = - 4

y = 2x + 16

1/2x + (2x + 16) = - 4

1/2x + 2x = - 4 - 16

5/2x = -20

2/5 x 5/2x = -20 x 2/5

x = -40/5

x = -8

y = 2x + 16

y = 2(-8) + 16

y = -16 + 16

y = 0

Check:

1/2x + y = - 4

y = 2x + 16

1/2(-8) + (0) = -4

-4 + 0 = -4

-4 = -4

y = 2x + 16

(0) = 2(-8) + 16

0 = -16 + 16

0 = 0

There are 40 female performers in a dance recital. The ratio of men to women is 3:5. How many men are in the dance recital?
PLS ANSWER I WILL GIVE YOU BRAINLIEST!!!! PLS

Answers

there are twenty-four [ 24 ] men

I need help its Khan 2q+2+9

Answers

Answer:

2q+11

Step-by-step explanation:

Variables are the same. Only the constants add.

a sandbox is in the shape of a right triangle. The two legs measure 9 inches and 16 inches. what is the perimeter of the sandbox?

Answers

Answer:

Perimeter = 50 inches

Step-by-step explanation:

Use pythagoreon theorem to find the hypotenuse

a^2 + b^2 = c^2

3^2 + 4^2 = 5^2

9 + 16 + 25 = perimeter

perimeter = 50

What is the domain of the function shown in this graph?

Answers

Domain is the set of x. Therefore, the domain starts from least x-value or from left side to the right side.

In the graph, it shows that the domain is from x = 1 to positive infinity.

Therefore the answer is x >= 1

or [1,+infinity) as interval.

-5 ≤ -2; Add 7 to both sides

Help pls

Answers

Answer:

2 ≤ 5

Step-by-step explanation:

-5 ≤ -2 add 7 to both sides

-5+7 ≤ -2+7 calculate

2 ≤ 5

What the solution to -8+x=3

Answers

Answer:

x=11

Step-by-step explanation:

We would add 8 to both sides of the equation, leaving us with x=11

DOES ANYONE KNOW WEDNESDAYS QUESTION PLS HELP I HAVE 5 minutes

Answers

Answer:

-1/2

Step-by-step explanation:

Hope this helps!! Please consider marking brainliest! Have a good one!!

- 1/2 I think heiejkssnusnskzhsy

Which postulate proves the two
triangles are congruent?
A. HL
B. SSA
C. ASA
D. none

Answers

Answer:

the answer is b and i need atleast twenty words so it is asa because the middle and side and the right angle

Answer: The answer A: HL

Hope this helps

Evaluate 5.5r8.35s when r12 and s4.

Answers

Answer:

32.6

Step-by-step explanation:

when you plug in for s and r you will get 66-33.4 since 5.5 multiped by 12 is 66 and 8.35 multiplied by 4 is 33.4 .

then you subtract them and that's how you'll get your answer

Y=|x+2|-3 find the axis of symmetry

Answers

the answer is (-2,-3)

pls help this is due today!!! if correct I'll make Brainliest!!!!

Answers

1= 1/8

2= 4/8

3= 2/8

Step-by-step explanation:

The probablity would be 3/4

Question 22 of 25
Which of the following are solutions to the quadratic equation below?
Check all that apply.
3x2 - 7x-3 = x
D A. 1
B. 3
] j
C. -3
D. -4
E.
=
1
O F..2

Answers

B and E. see attached

student in jakes class were numbered in order from 1 to 24. Jake was asked to choose classmates numbered with multiples of 5 to be in his group. which number could be the number of class mates in his group.

Answers

Answer:

number 5 , 10, 15, and 20 could be in his group which is a total of 4 classmates. If Jake's number wasn't a multiple of 5 then there would be 5 classmates.

Answer is most likely 4 classmates!

Step-by-step explanation:

Well we just need to know all the multiples of 5 in between 1 and 24 so we can start counting

25 - Bigger than the range

This means that the number 5 , 10, 15, and 20 could be in his group which is a total of 4 classmates. If Jake's number wasn't a multiple of 5 then there would be 5 classmates

Hope this Helps!!! :)

Let me know if I should change anything or if the answer was perfect!!!

the number of employees went from 7623 to 6824 what percent did this increase or decrease

Answers

Answer:

9.5% decrease

Step-by-step explanation:

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