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Rina8888 [55]
3 years ago
7

Please help I will mark branlest if you are right

Mathematics
1 answer:
harkovskaia [24]3 years ago
4 0

Answer:

7. 3x + 1

8. -2x + 4

9. -\frac{1}{2}x - 3

10. -\frac{1}{5}x + 2

Step-by-step explanation:

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Find the volume of the square prism measuring 6km along each edge of the base and 5 km tall (no units)
KiRa [710]

Answer:

hahahahahahahahahahahahahahahahahahahahahahahahahahha is

Step-by-step explanation:

7 0
3 years ago
Scott wants to buy fencing to place around a circular rock garden. The diameter of the circle is 16 feet. Using 3.14 for π, Calc
BartSMP [9]
<h3>Scott needs to buy 50.24 feet of fencing</h3>

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

Given that,

Scott wants to buy fencing to place around a circular rock garden

The diameter of the circle is 16 feet

The amount of fencing Scott will need to buy is equal to the circumference of circular garden

<em><u>The circumference of circle is given as:</u></em>

C = \pi d

Where, "d" is the circumference of circle

From given,

d = 16 feet

Therefore,

C = 3.14 \times 16\\\\C = 50.24

Thus, Scott needs to buy 50.24 feet of fencing

8 0
3 years ago
i need help with this one Eight cookies cost $12. At this rate, how much will 10 cookies cost? soory i didnt see the answer
WARRIOR [948]

Answer: $15

Step-by-step explanation:

8 cookies cost $12 you divide 12 by 8 and then you get 1.5 which equals 1.50 so each cookie is 1.50. So for 10 cookies you multiply 10 times 1.50 and you get your answer $15. 10 cookies cost $15

3 0
3 years ago
Two lighthouses are located 60 miles from one another on a north-south line. If a boat is spotted S 21o E from the northern ligh
jasenka [17]

Answer:

(A)The northern lighthouse is 8.2 miles closer than the southern lighthouse.

Step-by-step explanation:

The triangle attached represents the given problem.

First, let us determine the distance of the Boat from each of the lighthouse.

In Triangle ABC,

∠A+∠B+∠C=180 degrees

21+∠B+16=180

∠B=180-37=143 degrees.

Using Law of Sines

\frac{a}{Sin A}=\frac{b}{Sin B}\\\frac{a}{Sin 21^0}=\frac{60}{Sin 143^0} \\\text{Cross Multiply}\\a*sin143=60*sin21\\a=60*sin21\div sin143\\a=35.73 miles

Similarly

\frac{c}{Sin C}=\frac{b}{Sin B}\\\frac{c}{Sin 16^0}=\frac{60}{Sin 143^0} \\\text{Cross Multiply}\\c*sin143=60*sin16\\c=60*sin16\div sin143\\c=27.48 miles

Difference in Distance =35.73-27.48=8.25 miles

Therefore, the northern lighthouse is 8.2 miles closer than the southern lighthouse.

8 0
3 years ago
The value of y varies directly with x. If x = 218, then y = 436. What is
adell [148]

Answer:

<h2>x = 7</h2>

Step-by-step explanation:

To find the value of the value of x when

y = 14 we must first find the relationship between them

The statement

The value of y varies directly with x is written as

y \:  \:  \:  \alpha  \:  \:  \: kx

where k is the constant of proportionality

when x = 218

y = 436

So we have

436 = 218k

Divide both sides by 218

k = 2

So the formula for the variation is

<h2>y = 2x</h2>

when y = 14

We have

14 = 2x

Divide both sides by 2

<h3>x = 7</h3>

Hope this helps you.

5 0
3 years ago
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