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mrs_skeptik [129]
3 years ago
10

I need hlep asap :$:)):):

Mathematics
1 answer:
LiRa [457]3 years ago
8 0

Answer:

w\geq -2

Step-by-step explanation:

Distribute the 5 into the parentheses (multiply them both by 5)

15.5w+6.5\geq -25

Subtract the 6.5 from -25.

15.5w\geq -31.5

Divide -31.5 by 15.5.

w\geq -2

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Svetlanka [38]
What exactly do you need help with?!
4 0
3 years ago
Drag each term to the correct location on the expression. each term can be used more than once, but not all terms will be used.
grandymaker [24]

Answer:

4(x-3)(x+6)

Step-by-step explanation:

We factor out the 4 first since all numbers are divisible by 4. That leaves us with x^2+3x-18.

Then we factor this to get (x-3)(x+6).

So the factored form of the equation is 4(x-3)(x+6)

8 0
3 years ago
Mr. Blue drove from Allston to Brockton, a distance of 105 miles. On his way back, he increased his speed by 10 mph. If the jour
andrew-mc [135]

Answer:

His original speed was 60 mph.

Step-by-step explanation:

The average speed formula is shown below:

speed = distance / time

For the first leg of the trip Mr. Blue drove at a speed of "x" mph, for a distance of 105 miles, therefore the time that took to complete the trip is:

time 1 = distance / speed

time 1 = 105 / x h

On the second leg of the trip Mr. Blue drove faster at a speed of "x + 10" mph, so the time it took him to complete the trip was 15 minutes less, therfore:

time 2 = time1 - (15/60) = (105/x) - 0.25 = (105 - 0.25*x)/x h

Applyint the time and speed from the second leg to the average speed formula we have:

x + 10 = {105/[(105 - 0.25*x)/x]}

x + 10 = 105*x/(105 - 0.25*x)

(x + 10)*(105 - 0.25*x) = 105*x

105*x + 1050 -0.25*x² - 2.5*x = 105*x

-0.25*x² -2.5*x + 1050 = 0 /(-0.25)

x² + 10*x - 4200 = 0

x1 = [-(10) + sqrt((10)² - 4*(1)*(-4200))]/2 = 60

x2 = [-(10) - sqrt((10)² - 4*(1)*(-4200))]/2 = -70

Since his speed couldn't be negative the only possible value was 60 mph.

5 0
3 years ago
Read 2 more answers
Express this equation in logarithmic form. y = 10^x<br><br> x = ?
Lana71 [14]

From definition we have:

$x=\log_{10}y

8 0
2 years ago
Let F(x)=x^2-4 and G(x)=5-x<br><br> Find (F/G)(x)=
sammy [17]

Answer:(F/G)(x)=7

Step-by-step explanation:

5 0
2 years ago
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