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anygoal [31]
3 years ago
15

Help please (will give brainliest)

Mathematics
2 answers:
levacccp [35]3 years ago
7 0
We know that sin(a)=80/82.
sin(a)=0.9756
sin^-1(0.9756)=a
a=77.3
klemol [59]3 years ago
3 0
I belive you would subtract 18 from 90????
You might be interested in
Suppose the graph of a cubic polynomial function has the same zeroes and passes through the coordinate (0, –5). Describe the ste
olga_2 [115]
1. "the graph has the same zeros" : so let a be the "triple" root of the cubic polynomial function.

2. So f(x)=(x-a)^{3}

3. Don't forget that the expression might have a coefficient b as well, and still maintain the conditions: 
 
f(x)=b(x-a)^{3}

4. Now, f(0)=-5 so  -5=f(0)=b(0-a)^{3}=b(-a) ^{3}=-ba ^{3}

-5=-ba ^{3}

5=ba ^{3}

b= \frac{5}{ a^{3} }

5. the function is f(x)=\frac{5}{ a^{3} }(x-a)^{3} where a can be any real number except 0
7 0
3 years ago
Read 2 more answers
PLEASE HELP DUE AT 9 AM EST!!!! SHOW HOW YOU GOT YOU ANSWER BY SHOWING YOUR WORK/ SHOW HOW YOU GOT THE ANSWER STEP BY STEP PLS!
Rufina [12.5K]

Answer:

X = 4

Step-by-step explanation:

In the equation add 3 to both sides of the equation

1/2x-3+3=2-3/4x+3

Simplify

1/2x = -3/4x + 5

Add 3/4x to both sides

1/2x + 3/4x = -3/4x + 5 + 3/4x

Simplify

5/4x=5 Multiply both sides by 5

5x=20 divide both sides by 5

5x divided by 5 and 20 divided by 5

=4

5 0
3 years ago
13. For what value of b would the following system of equations have an infinite number of solutions?
tiny-mole [99]

Answer:

b=2

Step-by-step explanation:

we have

9x+12y=21 -----> equation A

6x+8y=7b ----> equation B

we know that

If the system of equations have an infinite number of solutions then the equation A must be equal to the equation B

Multiply equation B by 1.5 both sides

1.5*[6x+8y[=7b*1.5

9x+12y=10.5b ----> equation C

Compare equation A and equation C

9x+12y=21 -----> equation A

9x+12y=10.5b ----> equation C

For the equations to be equal it must be fulfilled that

21=10.5b

solve for b

b=21/10.5

b=2

5 0
3 years ago
which number set(s) does -10 belong toirrational numberswhole numbersrational numbersintegersreal numberscounting or natural num
yKpoI14uk [10]

Given:

The number is -10.

To describe the number:

Explanation:

Since 10 is a whole number and it has a minus sign.

So, -10 is an integer number.

Since it is an integer number.

So, it must be a rational number as well as the real number.

Therefore, -10 is a number that belongs to the sets

Integer numbers

Rational numbers

Real numbers

Final answer:

• Integer numbers

,

• Rational numbers

,

• Real numbers

6 0
1 year ago
20 points BRAINLIEST
IRISSAK [1]

Answer: option c or 3 because you gotta take out the 6 so u do -6 which left is negative and right is positive and then get rid of the +2 exponent so up is positive and down is negative so you move -2 which is down.

Step-by-step explanation:

6 0
3 years ago
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