3 years ago

THIS IS WORTH 30 POINTS

Mathematics

2 answers:

Maksim231197 [3]3 years ago

3 0

It will be at (4,-6)

guapka [62]3 years ago

3 0

Answer:

your awnser would be [4, −6]

Step-by-step explanation:

hope this helps

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(15, 0 ) (3,−3)

UkoKoshka [18]

The slope of the line is 1/4

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3 years ago

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Choose the correct simplification of the expression (8x - 5)(2x - 5x - 6).

expeople1 [14]

Answer:

Correct answer is B. (second Choice)

Step-by-step explanation:

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2 years ago

Martha is carrying her biology, science, and math textbooks. Her books weigh a total of 9 pounds. Her biology textbook weighs 3

Nata [24]

1 pound = 16 oz
Her books weigh 9 pounds or (9)(16)= 144 oz
Math Textbook= 40 oz
Biology textbook= 3 pounds or (3)(16)= 48 oz

Total weight of books - math textbook - biology textbook = science textbook
144-40-48 = 56oz
science textbook = 56oz

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3 years ago

Guys please help! In triangle CDE, the measure of angle C is 90 degrees, side CD is 15 and DE is 3 more than CE. Find the length

AURORKA [14]

You can calculate it using the law of cosines: c^2=a^2+b^2-2*a*b*cos(C)

your triangle is
CD=15=a
CE=?=b
DE=CE+3=b+3=c
and C=90°

-> insert those values, with c substituted with b+3 to remove c

c^2=a^2+b^2-2*a*b*cos(C)
(b+3)^2=15^2+b^2-2*15*b*cos(90)
cos(90)=0->
(b+3)^2=15^2+b^2
b^2+2*3*b+3^2=225+b^2
6b+9=225
6b=216
b=36=CE

DE=CE+3=36+3=39

4 0

3 years ago

Yu Xing paid 3.60 dollar for 2 pens after a 10 percent discount .What was the usual price of 1 pen.

notka56 [123]

Answer:

2 $

Step-by-step explanation:

let the original price be x

price after 10% discount = 3.60$

$x - \frac{10}{100} \times x = 3.60$

$\frac{100x - 10x}{100} = 3.60 \\ \frac{90x}{100} = 3.60 \\ 9x = 36 \\ x = 4$

The original price of 2 pens is 4$

original price of one pen = 4/ 2

<u>= 2 $</u>

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2 years ago