All categories

3 years ago

HELP! WILL GIVE BRAINLIEST

Mathematics

2 answers:

nekit [7.7K]3 years ago

7 0

Step-by-step explanation:

13+65..........

13(1+5)

Oduvanchick [21]3 years ago

7 0

Answer:

13(1 + 5)

Step-by-step explanation:

13 goes into 65 five times, so you would write it as 13(1 +5)

13 x 1 = 13

13 x 5 =65

so the end result would be 13 + 65

You might be interested in

According to some students what is the true purpose of homework

masha68 [24]

To annoy everyone and make life hard as heck. There is no true purpose behind it and teachers just like to make everyone's home life 10x more annoying. They also do it because 99% of teacher are crazy cat people with no life. So for them homework keeps them busy

5 0

3 years ago

Read 2 more answers

Write an equation in slope-intercept form for the line that passes through (4,-3) and is parallel to the line described by y=1/2

Morgarella [4.7K]

Answer:

y=1/2x-5

Step-by-step explanation:

7 0

3 years ago

9(a+2)=9 con comprobación plisss!!

icang [17]

Answer:

9a+18=9

9a=-9

a=-1

Step-by-step explanation:

6 0

3 years ago

PLEASE HELP THIS IS URGENT !

Rudik [331]

4, 9, 16, 25, 36, 49, 64, 81, 100, 121

a negative times a negative is a positive and squaring those numbers would be multiplying a negative by itself.

For example (-2)*(-2) is 4

**note, this only applies if the negative value is in the parentheses. (-2)^2 is different than -2^2 because with -2^2 only the 2 is getting squared and then you’d have to multiply the negative after**

8 0

3 years ago

Please someone help me to prove this.

morpeh [17]

Answer: see proof below

Step-by-step explanation:

Use the Double Angle Identity: sin 2Ф = 2sinФ · cosФ

Use the Sum/Difference Identities:

sin(α + β) = sinα · cosβ + cosα · sinβ

cos(α - β) = cosα · cosβ + sinα · sinβ

Use the Unit circle to evaluate: sin45 = cos45 = √2/2

Use the Double Angle Identities: sin2Ф = 2sinФ · cosФ

Use the Pythagorean Identity: cos²Ф + sin²Ф = 1

Proof LHS → RHS

LHS: 2sin(45 + 2A) · cos(45 - 2A)

Sum/Difference: 2 (sin45·cos2A + cos45·sin2A) (cos45·cos2A + sin45·sin2A)

Unit Circle: 2[(√2/2)cos2A + (√2/2)sin2A][(√2/2)cos2A +(√2/2)·sin2A)]

Expand: 2[(1/2)cos²2A + cos2A·sin2A + (1/2)sin²2A]

Distribute: cos²2A + 2cos2A·sin2A + sin²2A

Pythagorean Identity: 1 + 2cos2A·sin2A

Double Angle: 1 + sin4A

LHS = RHS: 1 + sin4A = 1 + sin4A $\checkmark$

6 0

3 years ago