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bulgar [2K]
3 years ago
9

-3r-8(8r+8)=-9(-4+9r)​

Mathematics
1 answer:
natulia [17]3 years ago
8 0

Answer:

r= 7.14 (rounded to 2 decimal places)

Step-by-step explanation:

We have to solve this equation for the value of r. We will use distributive property and basic algebra to solve this.

Distributive property is  a(b+c) = ab + ac

Now, the steps of solving are shown below:

-3r-8(8r+8)=-9(-4+9r)\\-3r -64r-64=36-81r\\-67r-64=36-81r\\-67r+81r=36+64\\14r=100\\r=\frac{100}{14}\\r=7.14

Hence, value of r is 7.14 (rounded to 2 decimal places)

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Please I really need help with this question
barxatty [35]

Answer:

Step-by-step explanation:

ABC and DEF are parallel lines. So, ∠ABE and ∠BED are co interior angles.

∠ABE + ∠BED = 180   {SUM OF CO INTERIOR ANGLE IS 180}

∠ABE+ 110.2 = 180

∠ABE = 180 - 110.2

∠ABE = 69.8

Now, ABC is straight line

∠ABE + ∠EBG + ∠CBG = 180

69.8 + ∠EBG + 34.8 = 180

104.6 + ∠EBG = 180

∠EBG = 180 - 104.6

∠EBG = 75.4

Again, DEF is straight line

∠DEB + ∠BEG + ∠GEF = 180

110.2 + ∠BEG + 25.6 = 180

∠BEG + 135.8 = 180

∠BEG = 180 - 135.8

∠BEG = 44.2

In triangle BEG,

∠BEG + x  + ∠EBG = 180  { sum of all angles of triangle is 180}

44.2 + x + 75.4 = 180

x + 119.6 = 180

x = 180 - 119.6

x = 60.4

3 0
3 years ago
Use the provided information below to identify each of Mr. Nicholson’s earning opportunities as arithmetic or geometric. For eac
natita [175]

Answer:

4,200

Step-by-step explanation:

$60,000 divided by 3,500 is 4,200

7 0
2 years ago
Someone help me ASAP!!!! I need this ASAP!!!!
qwelly [4]
So to solve it the equation is a squared plus b squared = c squared. So you square a and b. Then do the square root of that and should get c. C is always the largest side. C is opposite from a 90 degree angle . Hope this helps you answer your question.
5 0
3 years ago
The amount of green jelly beans in a bag is 25%. If there are 12 green jelly beans, how many total
maw [93]

Answer:

48

Step-by-step explanation:

25% is 1/4 of the bag. 12x4 = 48.

There are 48 jelly beans in the bag.

Hope that helps

8 0
2 years ago
Read 2 more answers
Please help I will mark brainlist if correct
Setler79 [48]
Y = 3x + 13

You can get this by using the same slope and then plugging into the equation to find the intercept. <span />
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3 years ago
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