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3 years ago

PLEASE HELP ONLY 3 QUESTIONS PLEASE!

Mathematics

2 answers:

artcher [175]3 years ago

8 0

Q10 A20 i think
hope this helps

kati45 [8]3 years ago

3 0

Q9: The measure of ∠A is half the difference of the intercepted arcs.
.. (55 -12)/2 = 21.5

Q10: Tangents from the same point are congruent.
.. x +15 = 2x -5
.. 20 = x

Q7: The given congruences let you write two equations.
.. -x = y +8
.. -x = 3y +16
Equating the two equations for -x and solving for y gives
.. 3y +16 = y +8
.. 2y = -8
.. y = -4
.. -x = -4 +8 = 4
.. x = -4

Q8: The angle at the intersection is half the sum of the intercepted arcs. (Compare to Q9, where the intersection is external to the circle.)
.. 110 = (97 +x)/2
.. x = 220 -97 = 123

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If 9 people can drink 15 water bottles how many can 45 people drink

shutvik [7]

They can drink 51. Is my answer

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3 years ago

Meh needs some help once again

Ymorist [56]

1:1 because you simplify

7 0

3 years ago

Select the correct answer. what is the solution set of y = x2 2x 7 and y = x 7? a. {(0, 7), (-1, 6)} b. {(0, 7), (-7, 0)} c. {(0

Kaylis [27]

Answer:

a. {(0, 7), (-1, 6)}

Step-by-step explanation:

$y = x^{2} +2x+7\\y=x+7$

subtract the equations

$y = x^{2} +2x+7 \\- \ \ \ \ \ y=x+7\\y - y =x^{2} +2x+7-(x+7)\\0=x^{2} +x\\x = 0 \ and \ x= -1$

for $y = x^{2} +2x+7$ , substitute x = 0

$y = (0)^{2} +2(0)+7\\y = 0 +0+7\\y=7$

for $y = x^{2} +2x+7$ , substitute x = 0

$y = (-1)^{2} +2(-1)+7\\y = 1 -2+7\\y=6$

6 0

2 years ago

A rectangular shoebox has a volume of 728 cubic inches.the base of the shoebox measures 8 inches by 6.5 inches.how long is the s

Flauer [41]

Answer:the answer is 14

Step-by-step explanation: first you want to multiply

8*6.5

=52

then, since you want to get x being what it takes to get to 728 you divide

728/52

hope this helps

Goog luck!

5 0

3 years ago

Fourteen less children’s meals were served than adult meals at a barbecue. Children plate were 1.50 each and adult plates were 2

Annette [7]

Answer:

134 children and 120 adult plates were served

Step-by-step explanation:

let the children mean be x

Let the adult meal be y

If fourteen less children’s meals were served than adult meals at a barbecue, then;

y = x - 14 .... 1

IF Children plate were 1.50 each and adult plates were 2.00 each with a total of 441 in amount then;

1.5x + 2y = 441 .... 2

Substitute 1 into 2;

1.5x + 2(x-14) = 441

1.5x+2x-28 = 441

3.5x = 441+28

3.5x = 469

x = 469/3.5

x = 134

Recall that y = x - 14

y = 134-14

y = 120

Hence 134 children and 120 adult plates were served

7 0

3 years ago