1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
harina [27]
3 years ago
7

Find the value of x and the value of y.

Mathematics
2 answers:
Sergeu [11.5K]3 years ago
7 0

Answer:

C

Step-by-step explanation:

Using the sine ratio on the right triangle on the right side

sin30° = \frac{opposite}{hypotenuse} = \frac{y}{8}

Multiply both sides by 8 × sin30° = y

⇒ y = 8 × \frac{1}{2} = 4 → C

Andre45 [30]3 years ago
3 0

This would be D cause these are 30,60, 90 angles. 30 (X) 60(X square root of 3 and 90 2x).

You might be interested in
Given: A, B, and C What is the value of X in the matrix equation AX + B = C?
Ksju [112]

Answer:

Option (2)

Step-by-step explanation:

Given expression is, AX + B = C

A=\begin{bmatrix}-3 & -4\\ 1 & 0\end{bmatrix}

B=\begin{bmatrix}-7 & -9\\ 4 & -1\end{bmatrix}

C=\begin{bmatrix}-42 & -20\\ 5 & 4\end{bmatrix}

AX + B = C

AX = C - B

C - B = \begin{bmatrix}-42 & -20\\ 5 & 4\end{bmatrix}-\begin{bmatrix}-7 & -9\\ 4 & -1\end{bmatrix} = \begin{bmatrix}-42+7 & -20+9\\ 5-4 & 4+1\end{bmatrix}

C - B = \begin{bmatrix}-35 & -11\\ 1 & 5\end{bmatrix}

Let  X=\begin{bmatrix}a & b\\ c & d\end{bmatrix}

AX = \begin{bmatrix}-3 & -4\\ 1 & 0\end{bmatrix}\times \begin{bmatrix}a & b\\ c & d\end{bmatrix}

     = \begin{bmatrix}(-3a-4c) & (-3b-4d)\\ a & b\end{bmatrix}

Since AX = C - B

\begin{bmatrix}(-3a-4c) & (-3b-4d)\\ a & b\end{bmatrix}=\begin{bmatrix}-35 & -11\\ 1 & 5\end{bmatrix}

Therefore, a = 1, b = 5

(-3a - 4c) = -35

3(1) + 4c = 35

3 + 4c = 35

4c = 32

c = 8

And (-3b - 4d) = -11

3(5) + 4d = 11

4d = -4

d = -1

Therefore, Option (2). X = \begin{bmatrix}1 & 5\\ 8 & -1\end{bmatrix} will be the answer.

7 0
3 years ago
At a pie cook-off, the judges ate 512 of Mary’s pie and 916 of Jerome’s pie.
IRISSAK [1]

Answer:

No

Step-by-step explanation:

I think you meant to put 5/12 ad 9/16 but in any case, even if it were 51/2 and 91/6 or anything else, the answer would be no

6 0
3 years ago
A triangle has one side that measures 12 inches and another side that measures 33 inches. Which are possible side lengths of the
In-s [12.5K]

Answer:

Greater than 21

Less than 45

Step-by-step explanation:

You add and subtract the two numbers you are given.

33 - 12 = 21

The third side has to be bigger than 21.

33 + 12 = 45

The third side has to be less than 45.

It can be written in one math sentence:

21 < x < 45

5 0
2 years ago
HELPPPPPP math please only correct answer i beg you
Alekssandra [29.7K]

Answer:

the area is 15

Step-by-step explanation:

if you split this shape into a triangle and a square, the triangle would measure with a legnth og 4 and a with of 3, which = 12 and then you divide by 2 to = the triangles area(6) then you add tht to the area of the square 3*3=9. so the answer would be 15

8 0
2 years ago
If tn = 4n+1, find t1, t2, t3, and tn+1. Express tn+1−tn in its simplest form.
Doss [256]

Answer:

t_1=5

t_2=9

t_3=13

t_{n+1}-t_n=4

Step-by-step explanation:

We have that:

t_n=4n+1

When we substitute n=1, we get:

t_1=4*1+1=5

When we substitute n=2 we get:

t_2=4*2+1=9

When we substitute n=3, we get:

t_3=4*3+1=13

When we substitute n=n+1, we get:

t_{n+1}=4*(n+1)+1=4n+5

Now

t_{n+1}-t_n=4n+5-(4n+1)

We expand and simplify to obtain:

t_{n+1}-t_n=4n+5-4n-1

t_{n+1}-t_n=4

3 0
3 years ago
Other questions:
  • If f(x) = 3x2 + 1 and g(x) = 1 – x, what is the value of (f – g)(
    10·2 answers
  • The sum of two numbers is 12. The difference of the same two numbers is −4. Find the two numbers.
    11·2 answers
  • What is the solution of (8x-8)3/2=64
    12·2 answers
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
    5·2 answers
  • How do I finna angle N?
    14·1 answer
  • State the chain rule for the derivative dy/dt if y(t)=f(u(t))(chain of f and u)
    10·1 answer
  • Ilmage: 1 apple. 3 oranges for each of 5 steps on the slider]
    15·1 answer
  • FIRST CORRECT ANSWER GETS BRAINLIEST AND 15 POINTS
    6·1 answer
  • Zahra plans to draw a triangle with angles measuring 50 degrees, 60 degrees, and 70 degrees. Which is true about Zahra’s plan?
    9·1 answer
  • During a very cold winter, water pipes sometimes burst because:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!