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2 years ago

Easy algebra question below first correct answer gets brainliest

Mathematics

1 answer:

Aliun [14]2 years ago

8 0

Answer:

$x = \sqrt{5}$

Step-by-step explanation:

$3 {x}^{2} + 5 {x}^{2} = 35$

$8 {x}^{2} = 35$

${x}^{2} = 5$

$\sqrt{ {x}^{2} } = \sqrt{5}$

$x = \sqrt{5}$

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Name the angle in (4) different ways.

MaRussiya [10]

Answer:

An angle can be named in different ways:

•by a number or letter written inside the angle.

•by the name of the vertex.

•by the vertex and a point on each ray.

3 0

2 years ago

Worth 10pts if someone can help!

charle [14.2K]

Answer:

y=-x

I found the points then simplified it down

7 0

3 years ago

Read 2 more answers

Which of the following functions has a period of 8 π ?

KengaRu [80]

<h3>Answer: Choice B</h3>

Explanation:

The general template of a sine function is

y = Asin(B(x-C))+D

The value of B is the only thing that determines the period T. We ignore every other term.

It turns out that T = 2pi/B which can be solved to B = 2pi/T

Plug in the given period of T = 8pi and compute to get

B = 2pi/T

B = (2pi)/(8pi)

B = 2/8

B = 1/4

This means that the term out front of the x is 1/4 and the equation must be $y = \sin\left(\frac{1}{4}x\right)$ which matches with answer choice B.

4 0

2 years ago

3. Solve using substitution.<br> x - y = 4<br> 3x - 2y = -5

Vedmedyk [2.9K]

<u>Given</u>:

The system of linear equations are $x-y=4$ and $3x-2y=-5$

We need to determine the solution to the system of equations using substitution method.

<u>Solution</u>:

The solution can be determined using the substitution method.

Let us substitute $x=4+y$ in the equation $3x-2y=-5$

Thus, we have;

$3(4+y)-2y=-5$

$12+3y-2y=-5$

$12+y=-5$

$y=-17$

Thus, the value of y is -17.

Substituting $y=-17$ in the equation $x-y=4$ , we get;

$x+17=4$

$x=-13$

Thus, the value of x is -13.

Hence, the solution to the system of equations is (-13,-17)

6 0

3 years ago

Andrew is thinking of a number less than 52 and greater than 40. his number has three ones. what is Andrew's number?

butalik [34]

I would say 43 because 43 has 3 ones (that’s what makes the 3) and it’s less than 52 and greater than 50.

Answer: 43

8 0

3 years ago