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Ainat [17]
3 years ago
12

You lose 3 points for 30 sec on the timer limit youre speech is 90 sec? pg.34

Mathematics
1 answer:
Simora [160]3 years ago
7 0
He loses 9 pts for 90 sec
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Solve the equation. Check your answer.<br><br> -11=5+8x<br><br><br> x=?
zloy xaker [14]

Answer:

x=-2

Step-by-step explanation:

Consider equation -11=5+8x

Collecting the like terms

-8x=11+5, -8x=16

Dividing through by -8 ob both sides of the equation

(-8x)-/8=16/-8

x=-2

4 0
3 years ago
WILL MARK BIANLEAST PLZ PLZ PLZ I REALLIY NEED THIS ASAP
Lina20 [59]

Answer: 120 beats per minute

Step-by-step explanation:

If you look at the plotted points on the graph, you can see that the rate is decreasing at a constant rate. As each week passes, the beats per minute rate drops by 10 beats. Therefore on Week 5, the heart rate will be 120 beats per minute.

4 0
3 years ago
27. Find a polar equation of the conic with focus at the pole that has the given eccentricity and equation of directrix.
ololo11 [35]

The polar equation will be  r=\dfrac{4}{1+cos\theta}

<h3> What is the polar equation?</h3>

A polar equation is any equation that expresses the relationship between r and theta, where r is the distance between the pole (origin) and a point on a curve, and theta is the counterclockwise angle formed by a point on a curve, the pole, and the positive x-axis.

From the equation, we are told that

The  Eccentricity: e = 1

The  Directrix is   y = 4

Generally, the polar equation for e =  1  and y  =  + c is mathematically represented as

r =\dfrac{e\times c}{1+ecos\theta}

r =\dfrac{1\times 4}{1+1\times cos\theta}  

 r=\dfrac{4}{1+cos\theta}

 

Therefore the polar equation will be  r=\dfrac{4}{1+cos\theta}

To know more about the polar equation follow

brainly.com/question/9363127

#SPJ1

4 0
2 years ago
3) Tara sold candles to raise money for new playground equipment at her school.
Ronch [10]

Answer:

Tara's current expression finds how much the school will be keeping. 50 x 2/5 (also written as 50 x 0.4) totals out as 20. $20 is 2/5 of $50. The expression that Tara SHOULD have written to find how much goes to the candle company would be 50 x 3/5 (also written as 50 x 0.6), as this adds up to 30. $30 is 3/5 of $50.

Step-by-step explanation:

50/5 = 10 which means that 1/5 of 50 = 10.

2/5 of 50 ($20) is kept by the school. This is what Tara's expression finds. This means that $30 is sent to the candle company, and can be found with the expression 50 x 3/5.

The decimals are created by dividing the numerator of the fraction by the denominator (I find it easier to do math with decimals).

3 0
3 years ago
Tommy's Bike wheels have a diameter of 2 feet. How far can he travel in 152 revolutions? Use
Kisachek [45]

Answer:Speed = 314.16 feet/min

Step-by-step explanation:

3 0
3 years ago
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