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inna [77]
3 years ago
15

Janice is standing 15m form the base of a building. From the point where she is standing, the angle of elevation of the top of t

he building is 32 degrees. How tall is the building, to the nearest tenth of a metre?
Mathematics
1 answer:
Alenkasestr [34]3 years ago
3 0

Answer:

the building is 28m

Step-by-step explanation:

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Two candidates ran for class president. The candidate that won received 70% of the 350 total votes. How many votes did the winni
labwork [276]

Answer:

49 votes

Step-by-step explanation:

Because 70% of the 350 is 49

3 0
3 years ago
Glass melts at a temperature that is higher than 2,600 degrees and less than 2,900 degrees.​
Agata [3.3K]

Answer:

2,700-2,800

Step-by-step explanation:

3 0
2 years ago
Y=-1/2x +7
yarga [219]

Answer:

B; (2,-4)

Step-by-step explanation:

The general equation of a straight line is;

y = mx + b

where m is the slope and b is the y-intercept

So from the question, when we look at the given equation, its slope is -1/2

mathematically, when two lines are perpendicular, the product of their slopes is -1

thus;

m1 * m2 = -1

m2 * -1/2 = -1

-m2 = -2

m2 = 2

The general equation form is;

y-y1 = m(x-x1)

where (x1,y1) = (4,0)

y-0 = 2(x-4)

y = 2x - 8

So, now we look at the point that will work for this equation

For the line that will work, if we substitute its x-value, we get the y-value

Let us take a look at option B

y = 2(2) -8 = 4-8 = -4

we can see that (2,-4) works

4 0
2 years ago
Solve the inequality 2n – 1 < 39​
MatroZZZ [7]

Answer:

n < 20​

Step-by-step explanation:

2n – 1 < 39​

Add 1 to each side

2n – 1+1 < 39+1

2n < 40

Divide each side by 2

2n/2 < 40/2

n < 20​

3 0
2 years ago
Help me out with this question pla
denis-greek [22]
P <span>≤ </span>450$    Rebecca can only pay equal to 450$ or less than 450$ so she can only afford A and B
3 0
3 years ago
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