3 years ago

Malia tried to prove that cos pheta = sin 90 degrees - pheta using the following diagram. her proof is not correct.

Mathematics

1 answer:

quester [9]3 years ago

6 0

Answer:

Malia used the wrong sides in her ratio for sin (90-0)

Step-by-step explanation:

Got it right on Khan academy

You might be interested in

Lisa was 48 inches tall when she was younger. She grew 2 22 inches per year. Lisa

amm1812

Answer:

B.6

Step-by-step explanation:

Lisa was 48 inches tall when she was younger. She grew 2 1/2 inches per year. Lisa

is now 63 inches tall. How many years did Lisa grow for?

a. 5

b. 6

c. 7

d. 8

2 1/2=5/2

48+(5/2*5)=48+12.5=60.5

48+(5/2*6)=48+15=63

therefore it is answer b

5 0

3 years ago

Please answer the question attached, marking brainliest (serious answers only)

Mandarinka [93]

Step-by-step explanation:

By Exterior Angle Theorem,

81° + b = 117°.

=> b = 117° - 81° = 36°.

8 0

3 years ago

Read 2 more answers

HELP ME PLS ASAP <br><br> a and b

morpeh [17]

Answer:

1. 5cm

2. 10cm

3. 20cm

4. 40 cm

Step-by-step explanation:

I think you need to double the area of the scaled factor.

6 0

3 years ago

What would these be reflected as?

pantera1 [17]

what direction are they to be reflected

Step-by-step explanation:

answers will be different depending on that

7 0

2 years ago

Add or Subract.Write your answer in scientific notation.6.4+(10×10×10)+1.4×(10×10×10×10)+7.5×(10×10×10)

Sergeeva-Olga [200]

Answer:

$1.53\times10^4$

Step-by-step explanation:

The given expression is:

$6.4\times(10*10*10)+1.4\times(10*10*10)+7.5\times(10*10*10)$

We apply the distributive property to get:

$(6.4+1.4+7.5)\times(10*10*10)$

We add to get:

$(6.4+1.4+7.5)\times(10*10*10)$

$15.3\times10^3$

In scientific notation, we have

$1.53\times10^4$

5 0

4 years ago

Read 2 more answers