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4 years ago

Can someone please help me with this question

Mathematics

2 answers:

kondor19780726 [428]4 years ago

8 0

A.

To solve, you need to get the variable by itself.
Order of operations:
Square root both sides.
(x-5)= plus/minus root 3, as 3 is not a perfect square.
Now you need to add 5 to both sides to get it to disappear on the side with the x.

x=root3 +or - 5, which can be rearranged so that 5 is the first term.

Lina20 [59]4 years ago

3 0

25_+10root3+3-2[(-5-+root3)(5)]+25=3

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What is y = -3x in standard form?

worty [1.4K]

For Ax+By=C, we have y=-3x. We want both the y and x variable on the same side, and that leads us to either subtract y from both sides or add 3x to both sides. You can do either, but I personally prefer the latter, so we have 3x+y=0. We have A=3 (since that is the coefficient for x) and B=1 (since 1*y=y). Lastly, C=0

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4 0

3 years ago

PLEASE HELP ME!!!

VashaNatasha [74]

Answer:

$350 * D \geq 1400$

$D\ge 4$

This means that the family must travel for at least 4 days.

Step-by-step explanation:

Given

$Rate = 350\ miles\ daily$

$Distance = 1400\ miles\ (atleast)$

Required

Determine and solve the inequality

The number of days is represented with D

So:

On any D number of days, the family would have covered a distance of 350 * D miles

If the total distance is at least 1400, then the inequality is:

$350 * D \geq 1400$

[The term "At least" is used to represent greater than or equal to]

$350 * D \geq 1400$

Divide through by 350

$\frac{350 * D}{350} \ge \frac{1400}{350}$

$D \ge \frac{1400}{350}$

$D\ge 4$

This means that the family must travel for at least 4 days.

5 0

3 years ago

HELP ME PLS ITS BEEN AN HOUR LUV U GUYS <33

Setler [38]

Answer:

19.6 cubic centimeters

Step-by-step explanation:

The ratio of two similar 3D figures' volumes is equivalent to the ratio of their corresponding lengths (whether it's width, height, length, radius, etc) cubed.

Here, we know the cones are similar, and we know the smaller radius is 2 and the larger radius is 3. Then the ratio of the volume of the smaller one to the volume of the larger one is $(2/3)^3=8/27$ .

We also know the actual volume of the larger cone is 66. So, if x is the volume of the smaller cone, we have the proportion:

x / 66 = 8 / 27

Cross-multiply:

27x = 66 * 8 = 528

Divide by 27:

x = 528/27 ≈ 19.6

The answer is thus 19.6 cubic centimeters.

~ an aesthetics lover

3 0

3 years ago

The length a rectangle is 2 cm grater than its width .the area is the rectangle is 80 cm square what is the width of the rectang

maw [93]

Answer:

Step-by-step explanation:

If breadth =x

length =x+2

Area =length *breadth

Area =x(x+2)=80

X^2+2x-80=0

X^2 +10x - 8x - 80=0

X(x+10)- 8(x+10)=0

(X-8)(x+10)=0

X=8 or x=-10

X=8(since breadth cannot be a negative value x cannot be negative)

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4 years ago

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Mamont248 [21]

Answer:

red box 5, 3, 0, -9, 4, 0, 2, -37

Step-by-step explanation:

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3 years ago