2 years ago

What are the first 5 terms of an arithmetic sequence with a common difference of – 0.4 and the first term of 0.7?

Mathematics

2 answers:

vovikov84 [41]2 years ago

5 0

A no is the correct ans .

zimovet [89]2 years ago

5 0

It would be no as a correct answer

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What is the surface area of this prism? A. 3240 m2 B. 6480 m2 C. 1656 m2 D. 3312 m2

NeX [460]

Well take the bottom and in this case its 18 and 30 so 18 x 30 = 540 then you do the two 15's times 30 and thats 450 times the 2 is 900 so 540+900+216 = so thats 1656 m 2 :)))))))))))

6 0

2 years ago

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Can someone help with this please?

ipn [44]

$7^2=7\cdot7=49\\\\8^2=8\cdot8=64\\\\\sqrt{49}$

3 0

2 years ago

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Workout the area of the quarter of a circle with a radius of 8

QveST [7]

Answer:

$16\pi$

Step-by-step explanation:

We need to find 1/4 of the area of a circle with a radius of 8

Let r be radius

Area of a circle = $r^{2} \pi$

Substitute r with 8

Area of a circle = $8^2\pi =64\pi$

Now, to find 1/4 of the area, we can create an equation $\frac{64\pi }{4}={16\pi$

The answer is $16\pi$

Hope this helps :)

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2 years ago

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Question 3.. will give brainliest

Anna11 [10]

Answer:

-0.5

Step-by-step explanation:

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Which expression can be substituted for y in the top equation of the

maria [59]

Answer:

Y=7+3x, x=-3, y=-2

Step-by-step explanation:

3x-5y=1. Equation 1

3x-y=-7. Equation 2

-y=-7-3x isolate for y in equation 2

y=7+3x multiplied by -1 to get positive y

3x-5(7+3x)=1 substitute y value of equation 2 (7+3x) into equation 1

3x-35-15x=1

-12x=36

x=-3

solve for y.

3x-5y=1

3(-3)-5y=1

-9-5y=1

-5y=10

y=-2

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2 years ago