MATHEMATICS HIGH SCHOOL

Help me please yallllll

Answers

Answer 1

Answer:

Answer:

x=21

Step-by-step explanation:

8x-7 = 9x-28 (corresponding angles are congruent)

8x = 9x-21 (algebra)

x = 21 (algebra)

Related Questions

Wendy is arranging books on the bookshelves in the school library. The total number of books she arranges is given by the equation b = 12r, where b is the total number of books and r is the number of rows. Each row contains the same number of books.If Wendy arranged 16 rows, she arranged a total of books.
Hello. What are the vertices, foci, endpoints of the conjugate axis, and the equation of the asymptote of 7x^2-9y^2-14x+72y-200=0?
What is sin 7pie/4the answer does not have pie in it and it is not a decimal
What is the 10th term of the geometric sequence 400, 200, 100...?
What is the volume of the cargo area of the moving truck?A. 696 cubic feet B. 756 cubic feet C. 824 cubic feet D. 888 cubic feet

Someone help........

Answers

Answer:

B) 33

Step-by-step explanation:

Jan starts out using 3 toothpicks to create Figure 1. She adds 4 toothpicks to create Figure 2 and adds another 4 toothpicks to create Figure 3. The equation for this question can be written as such:

3 + 2x = ? toothpicks

We will replace x with 15 because Figure 16 - Figure 1 is 15.

3 + (2 x 15) = ? toothpicks

2 multiplied by 15 is 30

3 + 30 = ? toothpicks

3 plus 30 is 33

The answer is B) 33

I hope that this helps :)

How many even integers greater than or equal to 2 and less than 20 areequal in value to the sum of two prime numbers?

Answers

Answer:

Step-by-step explanation:

Of those 9 even integers, 8 can be written as the sum of two prime numbers.

4 = 2+2; 6 = 3+3; 8 = 3+5; 10 = 5+5; 12 = 5+7; 14 = 7+7; 16 = 5+11; 18 = 7+11

Find b, given that a = 20, angle A = 30°, and angle B = 45° in triangle ABC

Answers

Answer:

b = 20√2

Step-by-step explanation:

Given: ΔABC

a = 20 , m∠A = 30° and m∠B = 45°

To find: value of b.

We use Sine result, which state that

$(a)/(sin\,A)=(b)/(sin\,B)$

Substituting given values we, get

$(20)/(sin\,30^(\circ))=(b)/(sin\,45^(\circ))$

we know that $sin\,30^(\circ)=(1)/(2)\:and\:sin\,45^(\circ)=(1)/(√(2))$ , we get

$(20)/((1)/(2))=(b)/((1)/(√(2)))$

$20{*2}=b*√(2)$

$b*√(2)=40$

$b=(40)/(√(2))$

$b=20√(2)$

Therefore, b = 20√2

The side b is opposite to the angle B, applying the law of the sines, we have:

$(a)/(sinA) = (b)/(sinB)$
$(20)/(sin30^0) = (b)/(sin45^0)$
$(20)/( (1)/(2) ) = (b)/( ( √(2) )/(2) )$
$20* ( √(2) )/(2) = b* (1)/(2)$
$(20 √(2) )/(2) = (b)/(2)$
$2*b =2*20 √(2)$
$2b = 40 √(2)$
$b = (40 √(2) )/(2)$
$\boxed{b = 20 √(2) }$

What is the value of x? 4x - 9 = 27

Answers

$4x-9=27$
$4x=27+9$
$4x=36:4$
$x=9$
The answer is: 9

=>4x - 9 = 27=>4x = 27 + 9=>4x = 36=>X = 36/4=>X = 9 ...Hope it helps!!!

Your fuel expense for last year was $800.00. This year it was $960.00. What was your percent of increase? A. 20%
B. 18%
C. 15%
D. 23%

Answers

Your fuel expense last year is said to be 800 dollars. That's for your annual total. Now, this year, It increased to 960 dollars. Maybe the fuel gets price increased. Anyways, we need to solve for the percentage increased of your fuel price from last year to this year. => 960 dollars - 800 dollars = 160 dollars=> 160 dollars / 800 dollars = 0.2 => 0.2 * 100% = 20% is the increased of your fuel expense.

If you would like to know what was the percent of increase, you can calculate this using the following steps:

x% of $800.00 is $960.00
x% * 800 = 960
x/100 * 800 = 960
x * 8 = 960 /8
x = 960 / 8
x = 120%

120% - 100% = 20%

The correct result would be A. 20%.

Use the quadratic equation y = x^2 – 6x + 9.Where does the vertex of the parabola lie?

A.below the x-axis

B.on the x-axis

C.on the y-axis

D.above the x-axis

Calculate the discriminant to determine the number of real roots.
y = x^2 + 3x + 9

How many real roots does the equation have?

A.one real root

B.no real roots

C.two real roots

D.no solution to the equation

Answers

Part 1- B, on the X axis.
Part B- A, the answer is one real root, and one non-real root.