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Pachacha [2.7K]
3 years ago
5

which of the following are solutions to the quadratic equation check all that apply x ^ 2 + 10x + 25 = 7​

Mathematics
2 answers:
worty [1.4K]3 years ago
7 0

Answer: the answer is b and d

Step-by-step explanation:

Georgia [21]3 years ago
3 0

Answer:

the Answers are : B and E

Step-by-step explanation:

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Which point is a solution to the system;
Monica [59]

Answer:

None of the listed

Step-by-step explanation:

Solve-for ;x -in\\ 2x+2y =18\\x = 9-y\\Substitute , 9-y -for ,x- in -2x-2y=-6\\-2(9-y)-2y =-6\\18+2y-2y=-6\\18 = -6\\The -statement- is -false \\Answer ; No -Solution

3 0
3 years ago
Mason and Laney run laps. The ratio of the number of laps Mason ran to the number Laney ran was 2:3.
3241004551 [841]

Using proportions, it is found that Mason ran 620 meters.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

Considering the ratio, the <em>rule of three</em> is given as follows:

2 laps for Mason - 3 laps for Laney.

n meters for Mason - 930 meters for Mason.

Applying cross multiplication:

3n = 930 x 2

n = 930 x 2/3

n = 620

Mason ran 620 meters.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

3 0
2 years ago
Factored 8x2y3-5= <br> I need the answer
ANTONII [103]

Answer: Reformatting the input :

Changes made to your input should not affect the solution:

(1): "y3" was replaced by "y^3". 1 more similar replacement(s).

STEP

1

:

Equation at the end of step 1

(23x2 • y3) - 5

STEP

2

:

Trying to factor as a Difference of Cubes

2.1 Factoring: 8x2y3-5

Theory : A difference of two perfect cubes, a3 - b3 can be factored into

(a-b) • (a2 +ab +b2)

Proof : (a-b)•(a2+ab+b2) =

a3+a2b+ab2-ba2-b2a-b3 =

a3+(a2b-ba2)+(ab2-b2a)-b3 =

a3+0+0+b3 =

a3+b3

Check : 8 is the cube of 2

Check : 5 is not a cube !!

Ruling : Binomial can not be factored as the difference of two perfect cubes

Final result :

8x2y3 - 5

5 0
3 years ago
Which of the following is the correct graph of the solution to the inequality −18 &gt; −5x + 2 ≥ −48?
monitta

Answer:

Option D. A number line with an open circle on 4 with shading to the right and a closed circle on 10 with shading to the left

Step-by-step explanation:

we have

-18 > -5x+2 \geq -48

Divide the compound inequality into two inequalities

-5x+2 \geq -48 -----> inequality A

-5x \geq -48-2

-5x \geq -50

Multiply by -1 both sides

5x \leq 50

Divide by 5 both sides

x \leq 10

The solution of inequality A is the interval ----> (-∞,10]

All real numbers less than or equal to 10

-18 > -5x+2 -----> inequality B

-18-2 > -5x

-20 > -5x

Multiply by -1 both sides

20 < 5x

Divide by 5 both sides

4 < x

Rewrite

x > 4

The solution of the inequality B is the interval ----> (4,∞)

All real numbers greater than 4

The solution of the compound inequality is

(-∞,10] ∩ (4,∞)= (4,10]

All real numbers greater than 4 and less than or equal to 10

A number line with an open circle on 4 with shading to the right and a closed circle on 10 with shading to the left

8 0
3 years ago
Read 2 more answers
John Walters is comparing the cost of credit to the cash price of an item. If John makes a down payment of $160 and pays $35 a m
GREYUIT [131]

Answer:

The amount is $275 more that the cash price of $725.

Step-by-step explanation:

It is given that John makes a down payment of $160 and pays $35 a month for 24 months.

Down payment = $160

Total amount of installments = $35 × 24 = $840

Total amount of product = Down payment + Total amount of installments

Total amount of product = $160 + $840 = $1000

Cash price = $725

Difference between credit and cash price is

Difference = $1000 - $725 = $275

Therefore the amount is $275 more that the cash price of $725.

8 0
3 years ago
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