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velikii [3]
2 years ago
9

1) Find the value for a that makes sin a = cos 25 true A ) 35 B) 65 D ) 155

Mathematics
1 answer:
svet-max [94.6K]2 years ago
6 0

Answer:

B

Step-by-step explanation:

Using the cofunction identity

sin(90 - x)° = cosx°

Here x = 25° , then

cos25° = sin(90 - 25)° = sin65°

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(22+x-7)=(x-5)how do u do long division <br>​
photoshop1234 [79]

Answer:

there is no solution to this problem?

Step-by-step explanation:

wdym?

3 0
3 years ago
Read 2 more answers
A cheetah ran 300 feet in 2.92 seconds. What was the cheetah’s average speed in miles per hour? Show your work.
alexdok [17]

Answer:

about 70.0 mph

Step-by-step explanation:

speed = distance/time

(300 ft)/(2.92 s)·(1 mi)/(5280 ft)·(3600 s)/(1 h) = (300·3600/(2.92·5280)) mi/h

≈ 70.0498 mi/h

8 0
3 years ago
What is th resulting true inequality ​
lorasvet [3.4K]

Answer:

10>-15

Step-by-step explanation:

The given inequality is:

-2<3

The inequality has to be multiplied by -5.

The multiplication is same as multiplying a normal equation with a number. The only difference is that the sign of inequality is changed when it is multiplied with a negative number.

So,

-2(-5) < 3(-5)

10>-15

So the correct answer is the last option ..

8 0
3 years ago
What is the value of the discriminant in the equation shown below?<br><br> x^2 -6x +4 =0
irakobra [83]

Answer:

Discriminant = 20

Step-by-step explanation:

We use formula to find the discriminant.

Discriminant (D) = b^2 - 4ac

The given equation is x^2 - 6x + 4 = 0.

Here the value of a = 1, b = -6 and c = 4.

Plug in the given values in the formula, we get

Discriminant (D) = (-6)^2 - 4*1*4

= 36 - 16

Discriminant = 20

Thank you.

7 0
3 years ago
Which expression represents the phrase?"4 more than the product of 8 and n."A) 8n – 4B) 8n + 4C) 4(8 + n)D) (8 + n) – 4
Dafna11 [192]

Answer:

B) 8n+4

Step-by-step explanation:

The product of 8 and n means 8n. Four more means +4. These together equal B) 8n+4

6 0
2 years ago
Read 2 more answers
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