3 years ago

PLEASE HELP FAST EMERGENCY

Mathematics

1 answer:

Bingel [31]3 years ago

6 0

Answer:

C because you add 1 to both sides

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Is it A,B,C,or D? Please Help MATH

GuDViN [60]

Answer:

the last one you have attached

Step-by-step explanation:

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3 years ago

Read 2 more answers

Find the value of x. Round the length to the nearest tenth.

Colt1911 [192]

To find value of x we can use the sine angle function. From definition and basics of trigonometry we know that,

$\sin(\theta)=\dfrac{\mathrm{opposite}}{\mathrm{hypotenuse}}$

In this case our opposite is x and our hypotenuse is 15m and our angle $\theta$ is 35°.

Therefore,

$\sin(35^{\circ})=\dfrac{x}{15}$

If we solve for x,

$x=15\sin(35^{\circ})\approx\boxed{8.6\mathrm{m}}$

Hope this helps.

r3t40

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3 years ago

Câu 1: cho hình chóp S.ABC có đáy là tam giác đều cạnh bằng a, cạnh bên SB vuông góc với mặt phẳng (ABC) , SB =2a. Tính thể tích

Maurinko [17]

Answer:

$\frac{\sqrt{3}}{6} a^{3}$ và $\frac{a^{3} }{6}$

Step-by-step explanation:

Câu 1: V = 1/3.2a. $\frac{\sqrt{3}}{4}$ $a^{2}$ = $\frac{\sqrt{3}}{6} a^{3}$

câu 2: Theo đề bài ta có SA là chiều cao và tam giác đáy SBC vuông tại S (hình chóp S.ABC đổi thành chóp A.SBC)

=> V = 1/3 SA.(diện tích tam giác SBC) = 1/3a. $\frac{a^{2} }{2}$ = $\frac{a^{3} }{6}$

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3 years ago

The entrance fee for an exhibition is $6 for an adult and $4 for a child. $700 was collected from the sale of tickets. There wer

Sveta_85 [38]

The answer should be 55 adults.

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3 years ago

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STatiana [176]

Answer:

37.5 Gallons will be used after a 15-minute shower.

50 Gallons will be used after a 20-minute shower.

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4 years ago