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2 years ago

Help urgent very very urgent

Mathematics

1 answer:

pshichka [43]2 years ago

4 0

Obviously you cross out the positive answers and look at the negative answers, since the slope is negative. It’s A. Because the y intersect is at -2 and -6... hope that helps

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If the radius is 43, find<br> the diameter.

RSB [31]

Diameter = 2 × radius

radius= 43 CM

diameter= 2× 43 CM

diameter= 86 CM

8 0

2 years ago

Read 2 more answers

What is 7.13 x 6 is it 54 because i dont know anything about math

igor_vitrenko [27]

42.96 I think

I’m very sorry if I’m wrong but I’m 90 sure I’m right

8 0

2 years ago

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a police officer records the speeds of vehicles on a road.what percent of the vehicles were traveling between 51-55 miles per ho

Marrrta [24]

Answer:

24%

Step-by-step explanation:

50 is the 100%

12/50= 24%

4 0

3 years ago

Use the graphs below to help you answer the question. Which of the following is the best approximation to a solution of the equa

brilliants [131]

Answer:

2 is the correct option.

Step-by-step explanation:

We have the equation $e^x=4x+1$ .

We will plot the graphs of the function $e^x$ and $4x+1$ .

Then, the intersection points of both the graph will be the solution of the equation $e^x=4x+1$ .

From the graphs, we see that,

The intersection points of the graphs are (0,1) and (2.337,10.347).

The solution of the equation is the value of 'x' co-ordinate where they intersect.

So, we get, x = 2 is the correct option.

4 0

2 years ago

Two customers went to a post office to buy postcards and large envelopes. Each postcard

astraxan [27]

The right answer is Option A.

Step-by-step explanation:

Let,

x be the postcards

y be the large envelops

According to given statement;

14x+5y=12 Eqn 1

10x+15y=24.80 Eqn 2

Multiplying Eqn 1 by 3;

$3(14x+5y=12)\\42x+15y=36\ \ \ Eqn \ 3$

Subtracting Eqn 2 from Eqn 3;

$(42x+15y)-(10x+15y)=36-24.80\\42x+15y-10x-15y=11.20\\32x=11.20\\$

Dividing both sides by 32

$\frac{32x}{32}=\frac{11.20}{32}\\x=0.35$

Putting x=0.35 in Eqn 1;

$14(0.35)+5y=12\\4.90+5y=12\\5y=12-4.90\\5y=7.10$

Dividing both sides by 5

$\frac{5y}{5}=\frac{7.10}{5}\\y=1.42$

Therefore, one large envelope costs $1.42

The right answer is Option A.

Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

4 0

3 years ago