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3 years ago

What equation has the same solution as 2x^2+16x-10=0

Mathematics

1 answer:

Mila [183]3 years ago

5 0

Well you could factor it by dividing the entire equation by two...

x^2+8x-5=0

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Fiona was thinking of a number. Fiona doubles it and adds 5.1 to get an answer of 11.5. Form an equation with x

Scrat [10]

Answer:

The equation is 2x + 5.1 = 11.5

Step-by-step explanation:

Given that:

Fiona thinks of a number.

Let,

x be that number.

She doubles the number, therefore

Then she adds 5.1 in the number, thus

2x + 5.1

She gets the answer 11.5, so the equation becomes

2x + 5.1 = 11.5

Hence,

The equation is 2x + 5.1 = 11.5

8 0

3 years ago

Question halp me plss

Usimov [2.4K]

Answer:

-25

Step-by-step explanation:

when b = 6

sub b = 6 into b^2-9b-7

6^2-9(6)-7

36-54-7

36-61

-25

3 0

3 years ago

The ratio of the areas of two similar

dezoksy [38]

Answer: 6 cm

Step-by-step explanation:

Given: The ratio of the areas of two similar parallelograms is 4:9.

To find : The height of the bigger one if the smaller is of height 4 cm.

Let h be the height of the bigger one.

Since the areas of similar figures are proportional to the square of their corresponding sides.

Then, $\dfrac{4^2}{h^2}=\dfrac{4}{9}$

$\dfrac{16}{h^2}=\dfrac{4}{9}\\\\\Rightarrow\ h^2=\dfrac{9}{4}\times16\\\\\Rightarrow\ h^2=36\\\\\Rightarow\ h= 6\ cm\ \ \ \ \text{[ height cannot be negative.]}$

Hence, the height of bigger parallelogram = 6 cm

3 0

3 years ago

Whats the the first three sequence of n-4

Elan Coil [88]

Answer:

Therefore, the first three term of the sequence is:

$a_1\:=\:-3$

$a_2\:=\:-2$

$a_3\:=\:-1$

Hence, the sequence is:

$-3, -2, -1, ...$

Step-by-step explanation:

Given the nth term

$a_{n} = n-4$

The first three terms can be obtained by putting $n=1, n=2$ and $n=3$ respectively in the given nth term

Putting $n=1$ to get the first term

$a_1\:=\:1-4$

$a_1\:=\:-3$

Putting $n=2$ to get the second term

$a_2\:=\:2-4\:\:$

$a_2\:=\:-2$

Putting $n=3$ to get the three term

$a_3\:=\:3-4\:$

$a_3\:=\:-1$

Therefore, the first three term of the sequence is:

$a_1\:=\:-3$

$a_2\:=\:-2$

$a_3\:=\:-1$

Hence, the sequence is:

$-3, -2, -1, ...$

3 0

3 years ago

Read 2 more answers

The sum of measures of alternate interior angles of two parallel lines is 210°. What are the measures of these angles?

torisob [31]

The answer is 105. Alternate interior angles of two parallel lines are congruent(meaning they are the same). 210/2=105, also the answer has to be below 180 degrees but more than 0.

5 0

3 years ago