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3 years ago

.

Mathematics

2 answers:

sergeinik [125]3 years ago

6 0

Answer:Your answer is a c and f

Juli2301 [7.4K]3 years ago

4 0

Answer:

the answer is......

Step-by-step explanation:

f ,c,a

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3 + x + 1 = 2<br><br> Thank you :)

Lina20 [59]

Answer:

x = -2

Step-by-step explanation:

Please mark Brainliest when able, for showing work.

8 0

3 years ago

1.1.31

miv72 [106K]

Answer:yes

Step-by-step explanation:well its just yes so your welcome

7 0

3 years ago

Sam bought two CDs for $13 each. Sales tax for both CDs was $3. Write an expression to show how much Sam paid in all

Artyom0805 [142]

Hey There!

Expression- (13*2)+(3*2)=$32

This is the answer because Sam bought two cd's for 13, 13 *2, and the sales tax was $3, so 3*2=6.

Have A Brainly Day!

5 0

3 years ago

If tan a = 9／40<br>use trigonometric identities to find the values of sin a and cos a.

Sindrei [870]

Answer:

see explanation

Step-by-step explanation:

Given

tan a = $\frac{9}{40}$ = $\frac{opposite}{adjacent}$

We require the hypotenuse h

Using Pythagoras' identity

h² = 9² + 40² = 81 + 1600 = 1681 ( take square root of both sides )

h = $\sqrt{1681}$ = 41 , thus

sin a = $\frac{opposite}{hypotenuse}$ = $\frac{9}{41}$

cos a = $\frac{adjacent}{hypotenuse}$ = $\frac{40}{41}$

4 0

2 years ago

Rearrange y=1/2x+2 to make x the subject.

yarga [219]

Subtract 2

y-2=1/2 x

Multiply by 2 to cancel out the denominator and to get 1 in front of x

2(y-2)=x

You can stop there or you can multiply out.

2y-4=x

7 0

3 years ago

Read 2 more answers