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3 years ago

Someone pleaseee help me on this...

Mathematics

2 answers:

klemol [59]3 years ago

7 0

Ummm I think it’s the first line

chubhunter [2.5K]3 years ago

6 0

Answer:

Looks like 1 to me the first line

Step-by-step explanation:

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23x +5y−2, when x=6 and y=3.

zhenek [66]

Answer:

151

Step-by-step explanation:

Plug in 23(6)+5(3)-2

Simplify 138+15-2

Solve 153-2

151

8 0

3 years ago

Read 2 more answers

Choose the net for the three-dimensional figure.<br> Hurry please guys

AveGali [126]

I think it will be C

7 0

3 years ago

Dylan open a credit card account with $700 of available credit. Now that he has made some purchases, Dylan's account only has $5

Goshia [24]

Answer is: (B)

532 / 700 = 0.76 = 76%
therefore
532 = 76%

that's 24% missing aka a 24% decrease

a brainliest would be appreciated

3 0

3 years ago

Find the area of the triangle. Round your answer to the nearest thousandths. <br><br> A=1/2 bh

Over [174]

Answer:

Step-by-step explanation:

height of triangle=√(11²-8.6²)=√(11+8.6)(11-8.6)=√(19.6×2.4)

=√(4×4.9×4×0.6)=4√(4.9×0.6)=4√2.94

area of triangle=1/2 bh=1/2×2×8.6×4√2.94

=34.4×√2.94

≈58.984

5 0

3 years ago

Solve for x in the equation.

labwork [276]

Answer:

The solution is $\displaystyle x=1\pm \sqrt{47}$ . Fourth option

Explanation:

Solve for x:

$2x^2+3x-7=x^2+5x+39$

Move all the terms from the right to the left side of the equation, a zero in the right side:

$2x^2+3x-7-x^2-5x-39=0$

Join all like terms:

$x^2-2x-46=0$

The general form of the quadratic equation is:

$ax^2+bx+c=0$

Solve the quadratic equation by using the formula:

$\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

In our equation: a=1, b=-2, c=-46

Substituting into the formula:

$\displaystyle x=\frac{-(-2)\pm \sqrt{(-2)^2-4(1)(-46)}}{2(1)}$

$\displaystyle x=\frac{2\pm \sqrt{4+184}}{2}$

$\displaystyle x=\frac{2\pm \sqrt{188}}{2}$

Since 188=4*47

$\displaystyle x=\frac{2\pm \sqrt{4*47}}{2}$

Take the square root of 4:

$\displaystyle x=\frac{2\pm 2\sqrt{47}}{2}$

Divide by 2:

$\displaystyle x=1\pm \sqrt{47}$

First option: Incorrect. The answer does not match

Second option: Incorrect. The answer does not match

Third option: Incorrect. The answer does not match

Fourth option: Correct. The answer matches exactly this option

8 0

3 years ago