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2 years ago

I need help on question 9.

Mathematics

2 answers:

KengaRu [80]2 years ago

7 0

Answer: C) 40 degrees

Step-by-step explanation:

if the total angle is 70 degrees and part of it is 30 degrees

then the other part is x degrees

30 + x = 70

30 - 30 + x = 70 - 30

x= 40

Hope this helped!

<!> Brainliest is appreciated! <!>

Ainat [17]2 years ago

3 0

Answer:

god be with you

Step-by-step explanation:

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Y+6=15 and (y+6) 3=15 equivalent expressions

ryzh [129]

Answer:

They are not equivalent expressions

Step-by-step explanation:

y + 6 = 15

y = 9

3(y + 6) = 15

y + 6 = 5

y = -1

6 0

2 years ago

MATH!!! I HAVE NO IDEA HOW TO DO THIS PLEASE SHOW ME THE WORK I WANNA KNOW HOW TO DO THIS FOR THE NEXT QUESTION!!!!

zimovet [89]

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

Sorry I'm late!

Step-by-step explanation:

<em>Formula ⇒ </em> $A = \frac{1}{2}bh$

$A = \frac{1}{2}bh$

$A = \frac{1}{2}(5)(7)$

$A = \frac{1}{2}(35)$

$A = 17.5$

<h3>The Area of the face of the triangle is 17.5 in²</h3>

I hope this helps!

- sincerelynini

6 0

2 years ago

If the side of the square measures 14 mm, what is the length of y?

8_murik_8 [283]

It would be 7 because a line (altitude) that forms a right angle with the triangle will split the side it’s touching in half. The area is 196 because 14x14 is196

8 0

2 years ago

Can you please help me on 2,3,4, and 5? I will mark the brainliest plus 12 points for answering.

Marianna [84]

Answer:

2) Exact

3) Exact

4) Exact

5) Approximation

Step-by-step explanation:

8 0

2 years ago

Which one of the following reasons does NOT explain why 4x+5y≠9xy?

viva [34]

<h3>The terms 4x and 5y has different variable present in it. $4x + 5y \neq 9xy$ </h3>

<em><u>Solution:</u></em>

Given that,

$4x + 5y \neq 9xy$

<em><u>The reason is:</u></em>

When we are adding terms which has exactly the same variables, we must add the constants and let the result stand with variable

Which means,

4x + 10x = 14x

But,

We cannot add terms that has different variable

Which means,

4x + 5y

Here, both the terms 4x and 5y has different variable present in it. Hence they cannot be added together

$4x+5y\neq 9xy$

6 0

2 years ago