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2 years ago

Sin x = cos53° what is the value of x?

Mathematics

1 answer:

andreyandreev [35.5K]2 years ago

3 0

X = 37 degrees.

Sine and cosine are complementary, which means when they are added together, the equal 90. So, to find sine, subtract 53 from 90, to get x = 37.

Here is an image to show this.

I hope this helps!

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Determine whether abc ----> jgh is a reflection, translation, rotation, or glide reflection.

Usimov [2.4K]

From this picture you can calculate coordinates of triangles' vertices:
$A(-9,0),\ B(-6,-4),\ C(-3,0),\ J(8,0),\ G(5,4),\ H(2,0)$ .

Since

$\frac{-9+8}{2} = \frac{-6+5}{2}= \frac{-3+2}{2}=- \frac{1}{2}$ $\frac{0+0}{2}= \frac{-4+4}{2} = \frac{0+0}{2} =0$

you can conclude that points A, B, C are rotated by $180^0$ about the point (-0.5,0) to form points J, G, H, respectively.

Answer: A is correct choice.

3 0

2 years ago

Factoring completely

Marianna [84]

This is called a difference of squares which always factors according to the rule for factoring the difference of squares....

(a^2+b^2)=(a+b)(a-b) in this case:

9w^2-16 so

(3w-4)(3w+4)

4 0

2 years ago

6 students want lemonade and 12 students

Ksenya-84 [330]

Answer:

2:1

Step-by-step explanation:

well we show ratio by the sign ' : '

ratio of iced tea to lemonade= 12:6

now we reduce it to minimum by dividing it with same number.

12 is divisible by 6

so,

the reduced form is = 2:1

therefore,

ratio of the number of students who want iced tea to the number of students who want lemonade = 2:1.

5 0

2 years ago

How many terms are in this expression?<br> 5 -x2 + 4y - 3x + 4z

sleet_krkn [62]

Answer: −x2−3x+4y+4z+5

Step-by-step explanation: terms are (positive or negative), a single variable ( a letter ), several variables multiplied but never added or subtracted.

8 0

2 years ago

Yolanda makes wooden boxes for a crafts fair. She makes 300 boxes like this one shown, and she wants to paint all the outside fa

Effectus [21]

Answer:

240

Step-by-step explanation:

that is it

3 0

2 years ago