Answer:
a) 
b) -14
c) -3
d) -96
Step-by-step explanation:
a) The parenthesis indicate multiplication.
b) Minus and plus gives subtraction, and the sign you put behind the number is the sign of the largest number you have (in this case it's 21 since we ignore the -)
c) They already have common denominators, all that's left is to do 
d) The parenthesis indicate multiplication.
Good luck!
Answer:
to the 1st one its V=πr2h=π·92·6≈1526.81403
to the second one its V=πr2h=π·32·3≈84.823
ooooorrrrrrrV=πr2h=π·1.52·3≈21.20575
im saying or bc im not finna cap i haven't taken geometry in like 2 years and idk if the radius to second one is 3 or 1.5
Step-by-step explanation:
Answer:
x = 49
Step-by-step explanation:
Given the mathematical expression and data;
y = 1/√x
y = 7 and x = 64
First of all, we would find the constant of proportionality, k;
y = k/√x
7 = k/√64
7 = k/8
k = 7 * 8
k = 56
Next, to find the value of x, when y = 8
y = k/√x
Substituting the values, we have;
8 = 56/√x
Cross-multiplying, we have;
8 * √x = 56
√x = 56/8
√x = 7
Taking the square of both sides, we have;
(√x)² = 7²
x = 49
Answer:
Yes
Step-by-step explanation:
The following figures are similar. Similar means they are the same shape with the same angles. They aren't congruent and only similar because they are different sizes. If you dilate the smaller rectangle, you can make the larger one.
Distance formula is SquareRoot of (x2-x1)^2 + (y2-y1)^2
= SQRT( (8-0)^2 + (-8-7)^2 )
=SQRT(64 +225)
=SQRT(289)
= 17
