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NeTakaya
3 years ago
13

15-3x4+9=12 In parentheses

Mathematics
1 answer:
pickupchik [31]3 years ago
6 0
X = 1/13 but i’m not sure what numbers are supposed to be in parenthesis
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Is 2,-5,-12,-19,-26 an arithmetic sequence
Burka [1]
Yes, because every time you subtract 7
3 0
3 years ago
A , B and C form a triangle where ∠ B A C = 90 ∘ . A B = 0.5 mm and B C = 15.4 mm. Find the length of A C , giving your answer r
denpristay [2]

Answer:

15•4 mm

Step-by-step explanation:

using sine rule

a÷ sinA=c ÷sinC

15•4÷sin90=0•5÷sinC

sinC =0•5 × sin90 ÷ 15•4

C =1•9°

A+B+C= 180

90+B+1•9=180

B= 88•2°

b÷sinB = a÷sinA

b÷sin88•2= 15•4÷sin90

b=sin88•2 ×15•4 ÷sin90

b =15•39

to 1 dp

b =15•4 mm

8 0
2 years ago
You have an aquarium in the shape of a rectangular prism. The base is 4 feet by 3 feet. The height is 2 feet. How many square fe
fiasKO [112]
Since it is about only the outer part of the aquarium which is made of glasses we need to calculate the total surface area.

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Surface area of the shorter length of wall = 3*2 = 6 square feet
since it has another wall in opposite side. It has to be multiplied with 2.
6*2 = 12 square feet

Surface area of the longer length of wall = 4*2 = 8 square feet
since it has another wall in opposite side. It has to be multiplied with 2.
8*2 = 16 square feet

Therefore the total surface area that need to be covered with glasses
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6 0
3 years ago
At Mario's Pizza, a large pizza has a diameter of 18 inches. What is the area of two pizzas?
irinina [24]
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Plug in the values.

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18 / 2 = 9

Area = 3.14 * 9^2
Area = 3.14 * 81
Area = <span>254.34
</span>
Then multiply 2 to get the double the area.

254.34 * 2 = <span>508.68
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So, the answer to this question is <span>D. 508.68 in. 2.</span>
4 0
3 years ago
"If you have a square and you cut off one corner, how many corners do you have
Stels [109]

Answer:

Step-by-step explanation:

it it cuts near the corner,then 5.

if it cuts along diagonal then 3

6 0
3 years ago
Read 2 more answers
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