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3 years ago

MARKING BRAINLIEST For what value of x makes the polygon below a rhombus?

Mathematics

1 answer:

mamaluj [8]3 years ago

4 0

Answer:

x=7

Step-by-step explanation:

In order for this figure to be a rhombus, the interior sides have to add up to 180, and the angle not given by an expression has to be 90.

90+8x+7+3x+6=180

Combine like terms

90+11x+13=180

103+11x=180

Subtract 103 from both sides

11x=77

Divide both sides by 11

x=7

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At a school, 40% of the sixth-grade students said that hip-hop is their favorite kind of music. Only 5% liked Baby Shark the bes

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250 students
Explanation:
100/.4 = 250

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3 years ago

11. What is the location of the vertex of the parabola defined by f(x) = −3x2 − 18x − 35 and in what direction does the parabola

lbvjy [14]

11. The given parabola has equation: $f(x)=-3x^2-18x-35$

We complete the square to have the function in the vertex form: $f(x)=-3(x^2+6x)-35$

$f(x)=-3(x^2+6x+9)+3*9-35$

$f(x)=-3(x^2+6x+9)+27-35$

$f(x)=-3(x+3)^2-8$

The vertex is (-3,-8), the graph opens down because a=-3<0

Ans: B. Vertex: (−3, −8), opens downward

12. We know the graph of $y=x^2$ is a parabola that opens up and has its minimum point at the origin.

The range of this function is $y\ge 0$

A straight line that has its y-intercept below the x-axis (y=3x-6) will not intersect $y=x^2$ and hence will form a system with no solution.

Ans: D. y equals x squared, y equals 3x minus 6

14. We want to find the zeros of $x^2+21x=5x-63$

$x^2+21x-5x+63=0$

$x^2+16x+63=0$

The factored form is $(x+7)(x+9)=0$

$x=-7\:or\: x=-9$

Ans: C. x = −7, −9

15. The given quadratic expression is $6x^2-17x+10$

We split the middle term to obtain:

$6x^2-12x-5x+10=0$

We factor by grouping to get:

$6x(x-2)-5(x-2)=0$

$(x-2)(6x-5)=0$

Ans: D. 6x − 5

8 0

4 years ago

Read 2 more answers

Meena is helping her school librarian to arrange books on the shelves. Based on this situation, answer the following questions:

padilas [110]

Answer:

a) language

b) 2/15

Step-by-step explanation:

For the first part, you can start by making the denominators same

you take the LCM of 3 and 5 which is 15

Language books are now 10/15 since you multiply the nominator and denominator by 5

While science books are 3/15

10/15 : 3/15 making it obvious that language books are more

if the remaining are math books then

total books - (language + science books) = math books

10/15 + 3/15 = 13/15 (non math books)

15/15 - 13/15 are math books making 2/15 of them math books

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3 years ago

160% of what number is 19.2

riadik2000 [5.3K]

Answer:

The number is 12

Step-by-step explanation:

Let x be the number

160/100 = 1.6

1.6 x = 19.2

x = 19.2 / 1.6

x = 12

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3 years ago

The symbols <, >, ≤, ≥ are called

AlekseyPX

Given:

The symbols $,\leq ,\geq$ .

To find:

The correct name for the given group of symbols.

Solution:

We know that,

Equality symbols is $"="$ .

Inequalities symbols are $",\leq ,\geq"$ .

Operational signs are $+,-,\times , \div$ .

Radical signs is $\sqrt{}$ .

It means, the symbols $,\leq ,\geq$ are called inequalities symbols.

Therefore, the correct option is B.

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3 years ago