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grigory [225]
4 years ago
5

Chris is making a table-top from some leftover tiles he has 9 tiles that measures 3 1/8 inches long and 2 3/4 inches wide what i

s the area he can cover with these tiles
Mathematics
1 answer:
iren [92.7K]4 years ago
8 0
The product is 8.59375 or 8 19/32.
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Find the y-intercept of the function y=-2/3(x-1)+7.
horrorfan [7]
AaaAnswer : y=2/3x+23/3
4 0
4 years ago
Are the vectors u=(2,3) and v=(-6, 4) orthogonal?
katen-ka-za [31]

We need to find dot products of 2 vectors:

u·v = x1*x2 + y1*y2

u·v = 2*(-6) + 3*4 = -12 + 12 = 0

Another way to write dot product u·v = |u|*|v|*cos α.

Because the do product = 0, we can write

 |u|*|v|*cos α = 0.

That means cos α = 0, and thus α=90⁰, so vectors v and u  are orthogonal.


6 0
3 years ago
Here is a circle, centre O, and the tangent to the circle at the point (-3, 4) on the circle. У P (-3, 4) X -5 O Oา Find an equa
sattari [20]

Answer:

y=\frac{3}{4}x+\frac{25}{4}

Step-by-step explanation:

when a line is tangent to a circle, it is perpendicular to the line from the center of the circle to the intersection of the line and the circle. so first we are going to find the slope of the line in the circle.

to find the slope use the formula \frac{y_2-y_1}{x_2-x_1}

\frac{4-0}{-3-0}=\frac{4}{-3}=-\frac{4}{3} so the slope is -4/3

the slope of the line perpendicular to this is the opposite reciprocal: 3/4 so now we have y= 3/4 x +b, to find b plug in the point (-3,4) to get 4=-9/4 +b, b=25/4 the equation is y=3/4 x +25/4

4 0
3 years ago
Using the equation 4x - 7 = 13, choose all the steps that are used to solve the equation.
Mashutka [201]
Answer is •D because of the seburation
3 0
3 years ago
Read 2 more answers
Is -13 an interger, whole number, real number, rational number, irrational number, or natural number
Irina-Kira [14]
-13 is a real number and a rational number.
It's not an interger, because there's no such thing.
But it IS an integer.
5 0
3 years ago
Read 2 more answers
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