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3 years ago

Which equations have a negative solution?

2 answers:

8 0

A. w= -22 so A has a negative solution. D doesn't have a variable so I'm not sure about it (did you type it correctly?), but because only one side of the equation has a negative number, I'm guessing D is also a negative solution

Svetach [21]3 years ago

4 0

The answer is A and D :)))))))))

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If 3x^2-4x+7=0, then [x-2/3]^2=

Andrews [41]

I hope this helps you

7 0

3 years ago

AAP4C

Lunna [17]

Answer:

cosine 71° = distance from wall / 10

A) distance from wall = cosine (71) *10

distance from wall = 3.2557 feet

B) Height up the wall ^2 = 10^2 - 3.2557^2

Height up the wall ^2 = 100 -10.59958

Height up the wall ^2 = 89.40041751

Height up the wall = 9.45518 feet

Step-by-step explanation:

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3 years ago

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Mariulka [41]

Perimeter of the ΔJKL is 48 cm

Solution:

Given $\triangle \mathrm{RST} \sim \Delta \mathrm{JKL}$ .

RS = 8 cm and JK = 12 cm

Perimeter of $\triangle R S T$ = 32 cm

Let us find the perimeter of $\Delta J K L$ .

<u>Property of similarity triangles:</u>

If two triangles are similar, then the ratio of their perimeters is equal to the ratio of their corresponding sides.

$$\frac{\text{Perimeter of}\ \triangle RST }{{\text{Perimeter of}\ \triangle JKL}} =\frac{RS}{JK}$

$$\Rightarrow\frac{32 }{{\text{Perimeter of}\ \triangle JKL}} =\frac{8}{12}$

Do cross multiplication.

$$\Rightarrow 32\times 12 ={8}\times {\text{Perimeter of}\ \triangle JKL}$

$$\Rightarrow 384 ={8}\times {\text{Perimeter of}\ \triangle JKL}$

Divide both sides of the equation by 8.

$$\Rightarrow 48 = {\text{Perimeter of}\ \triangle JKL}$

Hence perimeter of the ΔJKL is 48 cm.

5 0

4 years ago

5. Aaron has sewn three square tablecloths of different sizes. He determines the length

victus00 [196]

Answer:

Step-by-step explanation:

square root of 18 is 4.2426 so round that and it is 4

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3 years ago

If the length of a sea turtle is

ElenaW [278]

Answer:

6.25ft

Step-by-step explanation:

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3 years ago