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3 years ago

10

PLZ HELP ME!!!!!!!!!!!!!!!!!!!!!!

1 answer:

BigorU [14]3 years ago

8 0

Answer:

i have no idea what this question is asking for but my guest is that you need to reformate the equations

-5x+y=-11 in y+mx+b format is y=5x-11

x-y=7 in y=mx+b formate is y=-x+7

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Please solve the math problem for me... I will mark you brainliest

natali 33 [55]

Answer:

$x=34$

Step-by-step explanation:

*it's kind of hard to read the number in parenthesis though but i think it's 5

both angles have to add up to 180º because they are co-exterior angles on parallel lines.

$2(x+5)+102=180\\2(x+5)=78\\2x+10=78\\2x=68\\x=34$

6 0

3 years ago

Find the length of the height of the right trapezoid shown below, if it has the greatest possible area and its perimeter is equa

Artyom0805 [142]

Answer:

The height of the right trapezoid is $\frac{6}{5+\sqrt{3}}\ units$

Step-by-step explanation:

Let

x ----> the height of the right trapezoid in units

we know that

The perimeter of the figure is equal to

$P=AB+BC+CD+DH+HA$

we have

$P=6\ units$

$AB=BC=CH=HA=x$ ---> because is a square

substitute

$6=x+x+CD+DH+x$

$6=3x+CD+DH$ -----> equation A

<em>In the right triangle CDH</em>

$sin(30\°)=\frac{CH}{CD}$

$sin(30\°)=\frac{1}{2}$

so

Remember that $CH=x$

$\frac{1}{2}=\frac{x}{CD}$

$CD=2x$

$tan(30\°)=\frac{CH}{DH}$

$tan(30\°)=\frac{\sqrt{3}}{3}$

so

$\frac{\sqrt{3}}{3}=\frac{x}{DH}$

$DH=x\sqrt{3}$

substitute the values in the equation A

$6=3x+CD+DH$ -----> equation A

$CD=2x$

$DH=x\sqrt{3}$

$6=3x+2x+x\sqrt{3}$

$6=5x+x\sqrt{3}$

$6=x[5+\sqrt{3}]$

$x=\frac{6}{5+\sqrt{3}}\ units$

5 0

3 years ago

A car can travel 208 kilometers on 26 liters of gasoline . how far can it travel on 14 liters ?

fenix001 [56]

Answer:

112 kilometers

Step-by-step explanation:

the reason why is because if you divide 208 by 26 you get 8 then multiply it by 14 to get the answer

8 0

3 years ago

PLZ HELP!!!!!! (WILL GIVE BRAINLIEST!!!!)

disa [49]

3 x 2 is 6. 6 x 5 is 30.. There you go, the answer is 30.

5 0

3 years ago

How many metres are there in 200cm

Arturiano [62]

$1m=100cm\Rightarrow1cm=0.01m\\\\200cm=200\times0.01m=2m$

5 0

4 years ago

Read 2 more answers