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3 years ago

I got 5x+8 but I don’t know what to do after this, please help!

Mathematics

1 answer:

VladimirAG [237]3 years ago

8 0

You do 2x+9=3x-1 which is x=10 meaning the measurements for 1 and 3 are 29 degrees and the measurements for 2 and 4 and 151 degrees

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A truck weighs 14,000 pounds how many tons do two truck weigh

sesenic [268]

Answer:

14 tons

Step-by-step explanation:

1 truck -- 14 000 pounds

2 trucks -- (14 000 * 2) = 28 000 pounds

1 pound --- 0.0005 tons

So, 28 000 pounds --- 14 tons

Thenks and mark me brainliest :)

4 0

3 years ago

If r + 9 = 42, does r + 9 - 9 = 42 + 9? Why or why not?

pav-90 [236]

No it does not because the answer is 33 to the first one and the answer is 51 for the second one

7 0

3 years ago

Tan(x-45)=1 solve the eqution

Pachacha [2.7K]

Answer:

x = 90

Step-by-step explanation:

We know based on the trigonometric identity that :

tan 45° = 1

Here, it's given : tan (x - 45)° = 1

Equating

tan 45 = tan (x - 45) [both are equal to 1]
45 = x - 45
x = 90

8 0

3 years ago

A line passes through the points (2, –2) and (–6, 2). The point (a, –4) is also on the line. What is the value of a?

leonid [27]

Answer:

The value of a=6[/tex]

Step-by-step explanation:

step 1:-

col linearity of three points :-

We know that slopes of two parallel lines are equal.If two lines having the same slope pass through a common point ,then two lines will coincide . Hence ,If A,B,C are three points in the X Y- plane, then they will lie on a line,

that is three points are col linear if and only if Slope of AB= slope of BC

step 2:-

Since the given three points are col-linear, we have

Slope of AB= slope of BC

given points are A(2,-2) ,B(-6,2) and C(a,-4)

Step 3 :-

Slope of AB= slope of BC

$\frac{2-(-2)}{-6-2} =\frac{-4-2}{a+6}$

$\frac{-1}{2} =\frac{-6}{a+6} by cross multiplication we get \\a+6=12\\Step 4:-The value of a=6$

5 0

4 years ago

What is the circumference of circle with diameter 7 cm?

Leona [35]

Answer:21.99

Step-by-step explanation: Given diameter of a circle is(d)=7cm.

Now, we know that circumference of circle is =πd, where d is diameter of circle.

So, here circumference is = π×7cm

= 22/7 x 7 cm

Circumference = 22cm

7 0

3 years ago

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