All categories

3 years ago

This is my last question

Mathematics

1 answer:

mariarad [96]3 years ago

5 0

Answer: B

Step-by-step explanation:because my teacher said she having trouble

You might be interested in

Suppose you want to draw a rectangle where the width is 7 inches less than the length and the diagonal is 2 inches longer than t

IrinaK [193]

The diagonal of a rectangle is:
d ^ 2 = w ^ 2 + l ^ 2
Where,
w: width
l: long
Substituting values we have:
(l + 2) ^ 2 = (l-7) ^ 2 + l ^ 2
Rewriting we have:
l ^ 2 + 4l + 4 = l ^ 2 -14l + 49 + l ^ 2
l ^ 2 -14l + 49 - 4l - 4 = 0
l ^ 2 -18l + 45 = 0
(l-15) (l-3) = 0
The solutions are:
l = 15
l = 3
The viable solution is:
l = 15
Thus, the width is:
w = l-7
w = 15-7
w = 8
Answer:
the dimensions of the rectangle are:
l = 15
w = 8

8 0

3 years ago

How many real solutions does the equation have? y2 + 12 = 0

riadik2000 [5.3K]

Answer:

dbbxnxnznndn

Step-by-step explanation:

hdhhdhdhdjxmdk

7 0

3 years ago

The minute had of a clock is 8 in. long.

DaniilM [7]

Answer:

P=8.378in

Step-by-step explanation:

Let Distance travelled be P

Time,t=10mins

Lenth of minute hand be l

1 hr= 60 mins, Therefore t is time taken to cover $\frac{1}{6} of \ the \ distance$

$P=\frac{2}{6}\pi*r\\P=\frac{2}{6}*\pi*8\\ =8.378$

3 0

3 years ago

Find the sum of 5a and -9a

kari74 [83]

Answer:

-4a

Step-by-step explanation:

5a + -9a = -4a

hope this helps

7 0

3 years ago

Read 2 more answers

1/12 ÷ 8 <br><br><br> Please help me :(

ANTONII [103]

Answer:

1/96

Step-by-step explanation:

1/12÷ 8 = 1/96

4 0

3 years ago