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2 years ago

11

PLEASE HELP!!! i’m taking a test rn and i don’t remember learning this!!!!

1 answer:

nignag [31]2 years ago

3 0

Answer:

Rectangle

Step-by-step explanation:

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NEED HELP ASAP! <br><br> What is the value of x? <br><br><br><br> x =

rjkz [21]

The Intersecting Secant Theorem says

EC × ED = EB × EA

(x+4)(x+4+1) = (x+1)(x+1+11)

(x+4)(x+5)=(x+1)(x+12)

x^2 + 9x + 20 = x^2 + 13 x + 12

8 = 4x

x = 2

Check:

6(7)=42

3(14)=42, good

Answer: 2

7 0

3 years ago

I need help with 5&6 please ASAP!!!!!!!

Elenna [48]

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3 years ago

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Find the value for x. Round your answer to the nearest hundredth. Area of the triangle = 8 ft^2

zmey [24]

Answer:

x = 3.51

Step-by-step explanation:

Since, formula to determine the area f a triangle is,

Area = $\frac{1}{2}(\text{Base})(\text{Height})$

8 = $\frac{1}{2}(x + 1)(3x - 7)$

16 = x(3x - 7) + 1(3x - 7)

16 = 3x² - 7x + 3x - 7

16 = 3x² - 4x - 7

0 = 3x² - 4x - 23

3x²- 4x - 23 = 0

By quadratic formula,

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

x = $\frac{4\pm \sqrt{(-4)^{2}-4(3)(-23)}}{2(3)}$

x = $\frac{4\pm \sqrt{292}}{6}$

x = $\frac{4\pm 17.09}{6}$

x = 3.51, -2.18

But the length of sides can't be negative.

Therefore, x = 3.51 will be the answer.

8 0

2 years ago

Rama09 [41]

Just add the two given angles together.

6 0

3 years ago

Read 2 more answers

The cost of 40 candy bars is

Anon25 [30]

C) $20
40 divided by 30 is 1.3
1.3 times 15 is 30

8 0

3 years ago