Mathematics High School

Help and please make sure it’s right :)

Help And Please Make Sure Its Right :)

Answers

Answer 1

Answer:

11

Step-by-step explanation:

7x + 8 = 6x + 19 (alternate angles)

7x - 6x = 19 - 8

x = 11

Answer 2
x=11 is the correct answer

Related Questions

how long will it take you and 4 friends to paint the fence?

Answers

Answer:

Check pdf

Step-by-step explanation:

Jason paid a $100 start-up fee for his
telephone. He also pays a monthly
service charge, X. Jason paid a total of
$340 in the first 6 months. Which of the
equations below can be used to find the
monthly service charge?
A 340 = 6 + 100x
B 340 = 100+ 6x
C 340 = 100 - 6x

Answers

Answer:

b

Step-by-step explanation:

HELP I NEED HELP ASAP

Luke kicked a soccer ball into the air. The height, f(x), of the ball, in meters, after x seconds was modeled with the function f(x)=-4.5x^2+27x. How many seconds did it take for the soccer ball to hit the ground?

A. 40.5 seconds
B. 3 seconds
C. 6 seconds
D. 2.5 seconds

Answers

Answer:

i think this is the answer

A. 40.5 secods

Find the measure for angle A.

A. 75
B. 60
C. 30
D. 38

Answers

180-90=90 (right angle is 90; all angles in triangle add to 180)
So the last two add up to 90
x+37+x+67=180 SPOE and CLT
-37 -67 -37
-67
2x=76
———-
2
X=38
∠A = 30°

180 = 90 + x + 37 + x + 67
180 = 194 + 2x
180 - 194 = 2x
-14 = 2x
-14/2 = 2x/2
-7 = x

substitute x for (-7)
∠A = x + 37
∠A = (-7) + 37
∠A = 30°

Please help there is no word problem.
5 − a + 4a =

Answers

collect like terms
5-a+4a
=5+3a

Tell whether the triangle is a right triangle.​ Show Work.

Answers

Answer:

if the angle is the same as a corner of a square it is a right angle

Step-by-step explanation:

A gym membership charges an initial
fee of $ 125 plus a $25 fee every
month. Another gym only charges $50
every month. After how many months
will the total cost for both gyms be the
same?

Answers

Answer:

the gym that has 150, will take 2 months and the gym that has 50 will take 6 months

first gym:

150

300

second gym:

50

100

150

200

250

300

PLS I NEED HELP QUICKLY

Answers

b + b + h+ h, then b^2+h^2

Answer:

b + b + h + h and since you have two of each you can say 2b + 2h.

Which expression represents the second partial sum for...?

Answers

Answer:

c

Step-by-step explanation:

just took the quiz

Answer:

C

Step-by-step explanation:

Edge2021

on Iready Question 7 angle sum properties Level H what is the answer

Answers

Answer:

Step-by-step explanation:75

Question 2 (25 points)
Solve for the missing hypotenuse. Round your answers to the nearest tenth. Figures are not drawn to scale.

Help me ASAP!!!!!!!! Plzzzz

Answers

Answer:212.4

Step-by-step explanation:

Opposite/hypotenuse

Sin23=83/x

Multiply x to both sides to cancel out the x under 83

You get xsin23=83

Then divide sin23 to both sides

X=83/sin23

X=212.4

Find the discriminant and determine the number of real roots for each equation. Show steps.

-9x^2 + x - 7 = 0

Answers

Answer:

0 real roots

Step-by-step explanation:

Given a quadratic equation in standard form

ax² + bx + c = 0 ( a ≠ 0 )

Then the discriminant is

Δ = b² - 4ac

• If b² - 4ac > 0 then 2 real and distinct roots

• If b² - 4ac = 0 then 2 real and equal roots

• If b² - 4ac < 0 then the roots are not real

- 9x² + x - 7 = 0 ← is in standard form

with a = - 9, b = 1, c = - 7 , then

b² - 4ac = 1² - (4 × - 9 × - 7) = 1 - 252 = - 251

Since b² - 4ac < 0 then the equation has no real roots

Plz help due tomorrow iff correct ill give brailiest

Answers

Answer:

so d = 43

and the answer to the question is divide

if sin theta = -3/5 and theta terminates in the fourth quadrant, find the exact value of tan 2θ

Answers

Answer:

67=9

Step-by-step explanation:

Answer:

-24/7

Step-by-step explanation:

EDGE 2021

A spinner with sections Red, Blue, Yellow, and Green is spun 3 times. What is the probability that it will land on yellow all 3 times?

Answers

Answer: 1/64

Step-by-step explanation:

1/4 to land on Yellow

We do it 3 times

1/4 x 1/4 x 1/4 = 1 /64 =0.015625

A specialty running shoe shop has a markup of
45% on the wholesale price of its shoes. The
wholesale price of a given pair of shoes is $65.

Answers

Answer:

65 x 1.45= 94.25

..........

Please help me please omggg

Answers

Answer:

Cube


Answer

Cube

















18. The perimeter of the given triangle is 36 cm.
Find the value of x.


Answers

Answer:

x = 7

Step-by-step explanation:

(x+2)+(3x-9)+(2x+1) = 36

6x - 6 = 36

6x = 42

x = 7

The mean age of 5 people in a room is 31 years.
A person enters the room.
The mean age is now 30.
What is the age of the person who entered the room?​

Answers

Answer:

25 year

Step-by-step explanation:

Mean = sum/no. *of observations

Initially, number of people = 5 & let the sum of their ages be S.

=> 31 = S/5

=> 155 = S

When one more entered, number = 6. Let his age be 'a'.

Sum of ages = S + a = 155 + a

=> 30 = (155 + a)/6

=> 180 = 155 + a

=> 25 = a

5.
Which number is a rational number, but NOT a whole number or integer?
A.
-40
10
B.
-20
4
C.
20
10
D.
7
11

Answers

Answer:

D

Step-by-step explanation:

Its D because integers and whole numbers cannot be fractions, while a rational number can. A, B, C, and D can all be simplified into whole numbers while 7/11 cant


Can someone help me with this geometry question

Answers

Answer:

C. Rectangle that isn't a square

Felix surrounds a 12 in. by 8 in. photo with a frame that is x inches wide. which quadratic function represents the combined area A of the picture and the frame?

A. A(x)=x^2+20x+96
B. A(x)=x^2+40x+96
C. A(x)=4x^2+20x+96
D. A(x)=4x^2+40x+96

Answers

Answer:

Step-by-step explanation:

Total dimensions = (12+2x) inches by (8+2x) inches

A = (12+2x)(8+2x) = 4x² + 40x + 96

Solve by factoring.
x2-49 = 0
X=

Answers

Answer: Ok so just remember

difference of 2 perfect squares

a^2-b^2=(a-b)(a+b)

(x)^2-(7)^2=(x-7)(x+7)

set to zero

x-7=0

x=7

x+7=0

x=-7

x=-7 or 7

Hope this helps have a awesome night/day❤️✨

Step-by-step explanation:

Please help!!! I will fail!! I will mark you brainliest!


Lucas is selling ribbons to raise money for the Juvenile Diabetes Research Foundation. His expenses include $46 for materials, plus $0.02 per ribbon. If Lucas charges $0.25 per ribbon, how many ribbons does he need to sell to break even? Write a system of equations that represents the situation. Let x represent the number of ribbons, and let y represent the expense or revenue. Solve the system of equations.

Answers

Answer:

He needs to sell 200 ribbons to break even.

Step-by-step explanation:

The break even point is where the expenses are equal to the earnings, so you can write an expression that indicates that Lucas' expenses are equal to his earnings:

46+0.02x=0.25x

Now, you can solve for x to find the answer:

46=0.25x-0.02x

46=0.23x

x=46/0.23

x=200

According to this, the answer is that he needs to sell 200 ribbons to break even.

Find the missing side of each triangle. Round your answers to the nearest tenth if necessary

Answers

I believe it’s 5cm because 10 divide by 2 is 5

Graph the line with the equation y = -x + 7.

Answers

Put the first point at (0,7) then move left by 5 and up by 1, then one going right 5 and down 1 from the y intercept.

1. What is the first step
in solving equations?

Answers

Answer:

Read and highlight the problem

Step-by-step explanation:

Answer:reading the problem and looking for key words to help you solve the answer

Step-by-step explanation:

I dont want to use the calc or use my brain bc im lazy. 3 (6) + 4 (2)^3 - 5

Answers

Answer:

33

Step-by-step explanation:

Fill in the blank with the correct word(s) to complete the sentence.


A cube is a three-dimensional figure with six square faces that are ______.


A.
congruent


B.
height


C.
pattern


D.
length

The first person to answer gets a BRAINLEST :))))))))

Answers

Answer:

congruent

..............

A triangle has sides with lengths of 7 miles, 7 miles, and 9 miles. Is it a right triangle yes or no

Answers

Answer:

No

Step-by-step explanation:

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