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Bad White [126]
3 years ago
14

Please help on #10! Thanks!

Mathematics
1 answer:
Aleks04 [339]3 years ago
3 0
Yes it describes a direct variation because y is 4x distance Is 4 times of time x
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Is that better talbottislan
Alenkinab [10]

Answer:

10

Step-by-step explanation:

the most common #is 10

7 0
3 years ago
If ƒ(x ) = x 2 + 1 and g(x ) = 3x + 1, find ƒ(-1) + 5g(-3).<br><br> -40<br> -38<br> 7
EastWind [94]
f(x) = x^2 + 1 \\ &#10;g(x) = 3x + 1

You can do this in parts.
f(-1) = (-1)^2 + 1 = 1 + 1 = 2
g(-3) = 3(-3) + 1 = -9 + 1 = -8
So, 5g(-3) = 5(-8) = -40.
So f(-1) + 5g(-3) = 2 - 40 = -38

Or you can do this as one big chunk.
f(-1) + 5g(-3)
=[(-1)^2+1] + 5[3(-3) + 1] \\&#10;= (2) + 5(-9 + 1) \\&#10;= 2 + 5(-8) \\&#10;= 2 - 40 \\ = -38
7 0
3 years ago
Read 2 more answers
Not only would I like the value of x, but also I wonder how I’d go about solving this problem?
notsponge [240]

Answer:

x = 58

Step-by-step explanation:

This question can be solved by using the exterior angle property, which states that the exterior angle of a triangle = the sum of the two opposite interior angles.

62 lies on a line, so the exterior angle is 180 - 62, or 118 degrees.

Using the EAP, we can conclude the following:

(x + 2) + (x) = 118

2x + 2 = 118

2x = 116

x = 58

Hope this helps

4 0
2 years ago
Read 2 more answers
Use the distributive property to match equivalent expressions.
NeTakaya

Answer:

<h3>By using the distributive property the matched equivalent expressions are</h3><h3>1) -7(-4+x) =28-7x </h3><h3>2) -7(4-x) =-28+7x </h3><h3>3) 7(4+x) =28+7x </h3><h3>4) 7(-4-x) =-28-7x </h3>

Step-by-step explanation:

Given that by using the distributive property to match the given equivalent expressions.

1) Given expression is -7(-4+x)

<h3>By Distributive property a(b+c)=ab+ac</h3>

-7(-4+x) =(-7)(-4)+(-7)(x)

=28-7x

<h3>∴ -7(-4+x) =28-7x </h3>

2) Given expression is -7(4-x)

<h3>By Distributive property a(b+c)=ab+ac</h3>

-7(4-x) =(-7)(4)+(-7)(-x)

=-28+7x

<h3>∴ -7(4-x) =-28+7x </h3>

3) Given expression is 7(4+x)

<h3>By Distributive property a(b+c)=ab+ac</h3>

7(4+x) =(7)(4)+(7)(x)

=28+7x

<h3>∴ 7(4+x) =28+7x </h3>

4) Given expression is 7(-4-x)

<h3>By Distributive property a(b+c)=ab+ac</h3>

7(-4-x) =(7)(-4)+(7)(-x)

=-28-7x

<h3>∴ 7(-4-x) =-28-7x </h3>

Hence the matched equivalent expressions are

1) -7(-4+x) =28-7x

2) -7(4-x) =-28+7x

3) 7(4+x) =28+7x

4) 7(-4-x) =-28-7x

4 0
3 years ago
State the size of angle OAB, giving a reason for your answer
lina2011 [118]

Answer:

OAB is 90°

Explanation -

Given - A circle with centre O

According to the theorem , The tangent of a circle and the line of tangency make an angle of 90°

5 0
3 years ago
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