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2 years ago

9

I NEED A 100% ACCURATE RIGHT ANSWER ASAP NO LINKS !!!

2 answers:

Virty [35]2 years ago

7 0

it's 8=8 meaning it is always true, and infinity.

hoa [83]2 years ago

4 0

Answer: all real num.

Step-by-step explanation:

4(a+2) = 8+4a

4a+8 = 8+4a

It can be all real number.

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Please please help please please ASAP please I'm begging you please I have 10 minutes please y'all help please any ACE that can

Finger [1]

Answer:

RQ

Step-by-step explanation:

ML:RQ = MN:RS = LN:QS (corr side, similar triangles)

8 0

3 years ago

Read 2 more answers

Which equation is equivalent to <br> f(x) =-4(x+7)^2-6

Vladimir [108]

Answer:

-4x-34

Step-by-step explanation:=−4x+−28+−6

=(−4x)+(−28+−6)

=−4x+−34

3 0

3 years ago

You put a fence around the dog pen and fill it with gravel. The fence costs $1.75 per foot. One bag of gravel covers 8 square fe

jek_recluse [69]

Answer: Ok so you do 8(1.75+1.50) and then times it by four since it’s a dog fence,I did this on calculator+ so that should be a good answer,the answer is 104

Step-by-step explanation:

7 0

2 years ago

You decide to enter in a rowing competition. To train, you go to the boat house and begin rolling down stream. You row for the s

fredd [130]

Answer:

Time spent rowing down stream $=100\ seconds$

Speed of boat in still water $=14\ ms^{-1}$

Step-by-step explanation:

Let speed of boat in still water be $= x\ ms^{-1}$

Speed of current $= 10\ ms^{-1}$

Speed of boat down stream = $\textrm{Speed of boat in still water +Speed of current}= (x+10)\ ms^{-1}$

Distance rowed down stream = 2400 m

Time spent rowing down stream = $\frac{Distance}{Speed}=\frac{2400}{x+10}\ s$ = $\frac{Distance}{Speed}=\frac{2400}{x+10}\ s$

Speed of boat up stream = $\textrm{Speed of boat in still water -Speed of current}= (x-10)\ ms^{-1}$

Distance rowed up stream = $\frac{1}{6} \textrm{ of distance rowed downstream}=\frac{1}{6}\times 2400 = 400\ m$

Time spent rowing up stream = $\frac{Distance}{Speed}=\frac{400}{x-10}\ s$

We know that,

$\textrm{Time spent rowing down stream =Time spent rowing up stream}$

So,

$\frac{2400}{x+10}=\frac{400}{x-10}$

Cross multiplying

$2400(x-10)=400(x+10)$

Dividing both sides by $400$

$\frac{2400(x-10)}{400}=\frac{400(x+10)}{400}$

$6(x-10)=x+10$

$6x-60=x+10$

Adding 60 to both sides.

$6x-60+60=x+10+60$

$6x=x+70$

Subtracting both sides by $x$

$6x-x=x+70-x$

$5x=70$

Dividing both sides by 5.

$\frac{5x}{5}=\frac{70}{5}$

∴ $x=14$

Speed of boat in still water $=14\ ms^-1$

Time spent rowing down stream = $\frac{2400}{14+10}=\frac{2400}{24}=100\ s$

3 0

3 years ago

Brandon is making a ramp . The ramp stands 3 feet tall and is 9 feet long . How long is the base of the ramp

tresset_1 [31]

Answer: 8.48 Feet

Step-by-step explanation:

We can use the Pythagorean Theorem, A^2 + B^2 = C^2

A^2 + B^2 = C^2

A^2 + 3^2 = 9^2

A^2 + 9 = 81

81 - 9 = A^2

72 = A^2

√72 = A

8.48 = A

Hope this helps!

8 0

3 years ago