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Aleksandr-060686 [28]
3 years ago
15

Somebody help me please

Mathematics
1 answer:
Scrat [10]3 years ago
6 0

Answer:

Other dude is correct

Step-by-step explanation:

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A 15 foot building casts a 9 foot shadow. How tall is the building if it casts a 30 foot shadow at the same time?
ladessa [460]
15 : 9 = x : 30
x = 30 * 15 : 9
x = 50
7 0
3 years ago
What is the ratio of cosine of C?<br><br> A 24/7<br><br> B 24/25<br><br> C 7/25<br><br> D 25/24
Alecsey [184]

Answer:

Cos C = adjecent/hypotenuse

Cos C = 14/50

divide the numerator and the denominator by 2

Cos C = 7/25

The answer is C

8 0
2 years ago
Gradient of a straight line that is perpendicular to y = 4x + 2
lana66690 [7]
If a line's slope is \frac{a}{b}, the slope of the perpendicular line is -\frac{b}{a}
in this case, the given line has a slope 4, which is 4/1, so the perpendicular line has a slope/gradient -\frac{1}{4}
5 0
3 years ago
A LARGE RECTANGULAR POSTER IS 3 TIMES AS LONG AND 3 TIMES AS WIDE AS A SMALL RECTANGULA POSTER. THE SMALL POSTER IS 3 FEET LONG
umka2103 [35]

Answer:

the Larger poster is 9ft long by 6ft wide

Step-by-step explanation:

In order to find the length and width values of the large poster we first need to find the width of the smaller poster since we are already given the length. Since we are also provided with the perimeter we can add the length twice and subtract it from the perimeter which would give us the value of both width sides of the rectangle, then we simply divide by 2 to get the value of the individual width.

10ft = 3ft + 3ft + w + w

10ft = 6ft + 2w

4ft = 2w

2ft = w

Since the larger poster is 3 times as big for the length and the width we simply multiply the smaller poster's length and width by 3...

L = 3 * 3 = 9ft

W = 2 * 3 = 6ft

Finally, we can see that the Larger poster is 9ft long by 6ft wide

8 0
3 years ago
The equation of the given line is....?
liq [111]

Answer:y=3x+3

Step-by-step explanation: the y-intercept is 3, and the slope is 3/1, which is 3. Technically the answer is not enough information, as it is not given how many units one square is.

7 0
3 years ago
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