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Sonbull [250]
3 years ago
7

The temperature in Toronto at noon during a winter day measured 4 degrees Celsius.The temperature started dropping 2 degrees eve

ry hour.Which inequality can be used to find the number of hours,x,agter which the temperature will measure below-3 degrees celsius
Mathematics
1 answer:
Ronch [10]3 years ago
5 0

Answer:

4−2x<−3

Step-by-step explanation:

check:

now --- 4°

after 1 hr --- 2°

after 2 hrs--- 0°

after 3 hrs--- -2°

after 4 hrs--- -4°

so between 3 and 4 hrs it will reach -3°

4-2x < -3

-2x < -7

x > 3 1/2

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dimaraw [331]

Answer:

=468 m^2

Step-by-step explanation:

Surface area of a prism is

SA = 2 (lw + wh + hl)  where l is length, w is width and h is height

SA = 2 ( 12*6 + 6*9 + 9*12)

      = 2 ( 72+54+108)

      = 2(234)

       =468 m^2

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Shalnov [3]
13.
1st: split the 1 shape into 2 shapes. (spit across to where you see one right angle(top), and a trapezoid(bottom)

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A set of stickers contains 4 hearts for every 6 stars. Which choice contains an equivalent ratio of hearts to start?
Yuri [45]

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6 hearts to 9 stars

Step-by-step explanation:

7 0
3 years ago
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Simplify.
liraira [26]
2x + 7y + 3x - 4y

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What is the surface area of this triangular prism? The base of each triangle is 42 m and the height of the triangular base is 20
shutvik [7]

<u>Given</u>:

The base of each triangular base is 42 m.

The height of each triangular base is 20 m.

The sides of the triangle are 29 m each.

The height of the triangular prism is 16 m.

We need to determine the surface area of the triangular prism.

<u>Surface area of the triangular prism:</u>

The surface area of the triangular prism can be determined using the formula,

SA=bh+(s_1+s_2+s_3)H

where b is the base of the triangle,

h is the height of the triangle,

s₁, s₂ and s₃ are sides of the triangle and

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Substituting the values, we get;

SA=(42)(20)+(42+29+29)(16)

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SA=840+1600

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Thus, the surface area of the triangular prism is 2440 m²

8 0
3 years ago
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