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4 years ago

Can someone help me solve this ?

Mathematics

1 answer:

Agata [3.3K]4 years ago

6 0

$5x {}^{2} + 6x - 3 + 4x {}^{2} - 8x + 2 =$
$= 9x {}^{2} - 2x - 1$
In the original expression there are 6 terms in the simplyfied one there are only 3

In the simplified expression coefficient of x is (-2)

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Quadrilateral ABCD is a parallelogram. Determine the measure of Angle A

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Answer:

$\huge\boxed{\text{(A)}\ 96 \textdegree}$

Step-by-step explanation:

A parallelogram has two pairs of identical angles.

The identical angles will be directly opposite from each other.

This means that:

Angle C = Angle A
Angle D = Angle B

Therefore, we can say that Angle A is 3x degrees and Angle B is x+52 degrees.

It's also important to note that all angles in a quadrilateral add up to 360°.

Since we know the measure of each angle, we can add up the expressions for each and find x.

$3x + 3x + (x+52) + (x+52) = 360$

Let's simplify this equation.

$6x+(x+52)+(x+52)=360$
$8x+104=360$

$8x=256$

$x=32$

Now that we know the value of x, let's use it to find the measure of Angle A.

We already proved earlier that Angle C is equivalent to Angle A. Since we know the expression for Angle C (3x) it'll be the same for angle A.

$3(32)=96$

So A is 96°

Hope this helped!

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3 years ago

A cook had 15 eggs to scramble and equally serve 4 people. Which location on a number line correctly indicates the number of egg

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Step-by-step explanation:

Since we have given that

Probability of a randomly selecting a member who likes to cook=P(C) = 42%

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Probability of a randomly selecting a member who likes to both cook and sew

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As we know the "Probability rules " :

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3 years ago

A prairie dog left its burrow 5 feet underground and started digging deeper into the ground. It digs straight down at a constant

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Building and solving an equation to model the situation, it is found that it takes 4 min for the prairie dog to reach 13 feet underground.

Initially, the dog is 5 feet underground.

Each minute, the dog goes 2 more feet underground.

Hence, the underground height of the dog after t seconds is given by:

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$h(t) = 5 + 2t$

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It takes 4 min for the prairie dog to reach 13 feet underground.

A similar problem is given at brainly.com/question/25290003

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