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3 years ago

One solution of x^2-64=0 is 8. What is the other solution?

Mathematics

1 answer:

matrenka [14]3 years ago

8 0

Answer:

-8

Step-by-step explanation:

Multiplying two negatives (or squaring them) cancels the negative, therefore, (-8)^2=64

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2x^2+16x+42=0 what is the answer?

Debora [2.8K]

Answer:

no solution

Step-by-step explanation:

With some linear expressions, like this one, that has an answer of 0 has no solution

3 0

3 years ago

The smaller triangle was dilated to form the larger triangle. What is the value of x? A smaller triangle has side lengths of 5,

riadik2000 [5.3K]

Answer:

x = 7.5

Step-by-step explanation:

Dilation is a transformation in which the size of a given figure is either increased or decreased by a scale factor.

Given that the length of sides of the smaller triangle are; 5, 13, 12.

Given also that the length of the dilated triangle are; x, blank, 18.

Comparing the length of the last sides of the two triangles, we have;

(scale factor x 12) + 12

= ( $\frac{1}{2}$ x 12) + 12

= 6 + 12

= 18

Thus the scale factor for the dilation is $\frac{1}{2}$ . So that:

x = ( $\frac{1}{2}$ x 5) + 5

= 2.5 + 5

= 7.5

x = 7.5

And also,

blank = ( $\frac{1}{2}$ x 13) + 13

= 6.5 + 13

blank = 19.5

Therefore, the length of the sides of dilated triangle are: 7.5, 19.5, 18

4 0

3 years ago

Read 2 more answers

What is -2.6c - 2.8c equal??

Zina [86]

Answer:

-5.4c

Step-by-step explanation:

We're combining two "like" terms here.

It may make the problem easier to visualize if we write one of these terms over the other, as follows:

-2.6c

- 2.8c

----------

Adding, we get:

-2.6c

- 2.8c

----------

- 5.4c (answer)

3 0

3 years ago

Triangle EFG is an isosceles triangle with EG=EF. What is the approximate length of EF, and what is the approximate perimeter of

sineoko [7]

Answer:

B. The approximate length of EF is 4.47 units, and the approximate perimeter of triangle EFG is 12.94 units.

Step-by-step explanation:

First step is to determine the length of EF, since that will give us 2 sides of the triangle (since EG = EF).

From the diagram, we can easily make a rectangle triangle by dropping a vertical line from vertex E, let's name Z the meeting point of that line with the segment GF. Then we have a rectangle triangle EZF with a height of 4 and a base of 2, of which EF is the hypotenuse. So...

EF² = 4² + 2² = 16 + 4 = 20

EF = √20 = 4.47

Now that we have EF, we also have EG:

EF = 4.47

EG = 4.47

GF = 4 (visible on the graph)

Perimeter = 4.47 + 4.47 + 4 = 12.94 units.

7 0

2 years ago

Read 2 more answers

Help please<br> what is<br>

dsp73

Option A. is correct for the given condition.

Lets solve it through steps of range and functions,

First of all, Solve the equation:
$f(x) = |x|+5$
$= > x = -5$ (1)

$= > x = 5$ (2)

So these would be the ranges of X in between 5 and -5.

Hence option A. $R{f(x)eR [f(x) < 5}$ is correct.

Learn more about range and functions on:

https://brainly.ph/question/10400053

#SPJ10

3 0

2 years ago