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3 years ago

Can anyone helpppp???

Mathematics

1 answer:

Julli [10]3 years ago

8 0

Answer:

Step-by-step explanation:

Surface area is the total surface. So first, find each surface...two triangles, same size and three rectangles, same size.

So you will have to add each....triangle+triangle+rectangle+rectangle+rectangle.

Area of a triangle = 1/2(b)(h) with b=base and h=height

Plug in knowns 1/2(15)(13)=A

Multiply 15X13=195 Then divide by 2. 195/2=97.5

The area of each triangle is 97.5 yd.

Area of a rectangle = (L)(W) with L=Length and W=Width

Plug in knowns (15)(24)=A Now, multiply

15X24=360

The area of each rectangle is 360 yd.

We need to add two triangles for front and back. and three rectangls.

97.5+97.5+360+360+360=1275

Surface area is 1,275 yd.

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Arrange the pairs of points in increasing order of slopes of the lines joining them

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Answer:

(27,2) and (243,18)

(63,9) and (84,12)

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Step-by-step explanation:

Formula for slope of a line is

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a) (15,30) and (20,40).

$m_a=\dfrac{40-30}{20-15}=\dfrac{10}{5}=2$

Similarly find the slope of other lines.

b) (12,32) and (18,48).

$m_b=\dfrac{48-32}{18-12}=\dfrac{16}{6}=2.67$

c) (27,12) and (72,32).

$m_c=\dfrac{32-12}{72-27}=\dfrac{20}{45}=0.44$

d) (45,15) and (60,20).

$m_d=\dfrac{20-15}{60-45}=\dfrac{5}{15}=0.33$

e) (27,2) and (243,18).

$m_e=\dfrac{18-2}{243-27}=\dfrac{16}{216}=0.074$

f) (18,63) and (24,84).

$m_f=\dfrac{84-63}{24-18}=\dfrac{21}{6}=3.5$

g) (63,9) and (84,12).

$m_g=\dfrac{12-9}{84-63}=\dfrac{3}{21}=0.143$

After arranging the slopes in increasing order, we get

$m_e$

So, required arrangement of ordered pairs is

(27,2) and (243,18)

(63,9) and (84,12)

(45,15) and (60,20)

(27,12) and (72,32)

(15,30) and (20,40)

(12,32) and (18,48)

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Answer:

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Kristen was asked to write each of the numbers in the expression 80,000 x 25 using exponents. Her response was (8 x 10 to the po

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<em><u>Solution:</u></em>

Given that,

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No, the response of Kristen is wrong

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Therefore, it can be raised as 10 power 4

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