3 years ago

Help me please with my geometry

Mathematics

1 answer:

ololo11 [35]3 years ago

6 0

Answer: 47.86

Step-by-step explanation:

tan x =42/38

tan x= 1.105

x= 47.86

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Slove for the variable<br> 2a-5=5a+23

Lyrx [107]

Answer:

$a = 9 \frac{1}{3}$

Step-by-step explanation:

$2a - 5 = 5a + 23 \\ 2a - 5a = 23 + 5 \\ - 3a = 28 \\ \frac{ - 3a}{ - 3} = \frac{28}{ - 3} \\ a = 9 \frac{1}{3}$

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3 years ago

A4 paper has a width is 21cm and a length of 30cm.

pishuonlain [190]

Answer:

Ur answer

Step-by-step explanation:

If A4 paper has width 21cm and length of 30cm

Then,

A5 paper has a length of 21cm

So find the width,

A4 has width 30cm

so,

A5 must have half the answer

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4 years ago

Katrina has $210 in her savings account. She plans to buy books for her friends for Christmas. The books cost $7 per book. Which

jeka94

Y=210-7X you have $210 and want to know how many books she can buy with that money.

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3 years ago

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A number is divisible by 4 if the last two digits are divisible by 4

ddd [48]

What are you trying to say here i mean yes it could be true if you divide it by 2 or 1.

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4 years ago

I need the answers pls!!!!<br>please

Igoryamba

Answer:

$(4x - 3)(5x - 8) = 20x^2 -47x + 24$

Step-by-step explanation:

Given

$(4x - 3)(5x - 8)$

Required

Identify and correct error

The error is when the inner and outer terms are multiplied. i.e.

$4x * -8 = -32x$ not 32x

$-3 * 5x = -15x$ not 15x

So, the expression is:

$(4x - 3)(5x - 8) = 20x^2 - 32x -15x + 24$

$(4x - 3)(5x - 8) = 20x^2 -47x + 24$

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3 years ago