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kolbaska11 [484]
2 years ago
7

Find the degree of 2x7 y+4x9 -9y

Mathematics
1 answer:
Lynna [10]2 years ago
5 0

Answer:

I believe the answer is 9

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Find the value of y for the given value of x.<br> y = x/2 + 9;x = -12
11111nata11111 [884]

Step-by-step explanation:

x = -12

y = x/2 + 9

y = -12/2 + 9

y = -6 + 9

y = 3

4 0
2 years ago
What is the value of b in the equation (y Superscript negative 9 Baseline) Superscript b Baseline = y Superscript 45?
Whitepunk [10]

Answer:

the answer is -5

Step-by-step explanation:

5 0
2 years ago
mrs.beluga is driving on a snow covered road with a drag factor of 0.2. she brakes suddenly for a deer. The tires leave a yaw ma
Aneli [31]
First, we are going to find the radius of the yaw mark. To do that we are going to use the formula: r= \frac{c^2}{8m} + \frac{m}{2}
where 
c is the length of the chord 
m is the middle ordinate 
We know from our problem that the tires leave a yaw mark with a 52 foot chord and a middle ornate of 6 feet, so c=52 and m=6. Lets replace those values in our formula:
r= \frac{52^2}{8(6)} + \frac{6}{2}
r= \frac{2704}{48} +3
r= \frac{169}{3} +3
r= \frac{178}{3}

Next, to find the minimum speed, we are going to use the formula: s= \sqrt{15fr}
where
f is <span>drag factor
</span>r is the radius 
We know form our problem that the drag factor is 0.2, so f=0.2. We also know from our previous calculation that the radius is \frac{178}{3}, so r= \frac{178}{3}. Lets replace those values in our formula:
s= \sqrt{(15)(0.2)( \frac{178}{3}) }
s= \sqrt{178}
s=13.34 mph

We can conclude that Mrs. Beluga's minimum speed before she applied the brakes was 13.34 miles per hour. 
8 0
3 years ago
3 A class has 6 boys and 15 girls. What is the ratio of boys to girls?​
Lubov Fominskaja [6]

Answer:

6:15

Step-by-step explanation:

Hope this helps, lemme know if you need any further help (:

7 0
3 years ago
Read 2 more answers
PLEASE HELP ALGEBRA 1
Tomtit [17]

Answer:

C. 3

Step-by-step explanation:

This is a 30 60 90 triangle. To get from 3 rad 3 to x you need to divide rad 3 which gives you 3.

3 0
3 years ago
Read 2 more answers
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