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3 years ago

5

X(x+7)=0 solve whatever this id

1 answer:

Anit [1.1K]3 years ago

5 0

Step-by-step explanation:

x(x + 7) = 0

By Zero Product rule,

either x = 0 or (x + 7) = 0.

=> x = 0 or x = -7.

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Stanley has a collection of seashells. He found 35% of his collection on Florida beaches. If Stanley has 49 seashells from Flori

m_a_m_a [10]

Answer:

The number of seashells he have in his collection all together is <u>140</u>.

Step-by-step explanation:

Given:

Stanley has a collection of seashells. He found 35% of his collection on Florida beaches.

Stanley has 49 seashells from Florida.

Now, to find the number of seashells of his collection altogether.

Let the number of seashells all together be $x.$

Percentage of seashells found on Florida beaches = 35%.

Number of seashells found on Florida beaches = 49.

Now, to get the number of seashells altogether we put an equation:

$35\%\ of\ x=49.$

⇒ $\frac{35}{100} \times x=49$

⇒ $0.35\times x=49$

⇒ $0.35x=49$

Dividing both sides by 0.35 we get:

⇒ $x=140.$

Therefore, the number of seashells he have in his collection all together is 140.

4 0

3 years ago

Given f(x) and g(x) = f(k⋅x), use the graph to determine the value of k.

Fantom [35]

Answer:

Option A k=5

Step-by-step explanation:

step 1

Find the equation of f(x)

we have the points

(-10,-6) and (0,4)

Find the slope m

$m=(4+6)/(0+10)=1$

The function in slope intercept form is equal to

$f(x)=mx+b$

we have

$m=1$

$b=4$ -----> the point (0,4) is the y-intercept

substitute

$f(x)=x+4$

step 2

Find the equation of g(x)

we have the points

(-2,-6) and (0,4)

Find the slope m

$m=(4+6)/(0+2)=5$

The function in slope intercept form is equal to

$g(x)=mx+b$

we have

$m=5$

$b=4$ -----> the point (0,4) is the y-intercept

substitute

$g(x)=5x+4$

step 3

Find the value of k

we have

$f(x)=x+4$

$g(x)=5x+4$ -----> equation A

$g(x)=f(kx)$ -----> equation B

$f(kx)=kx+4$ ----> equation C

substitute equation A and equation C in equation B and solve for k

$kx+4=5x+4$

$kx-5x=0\\kx=5x\\k=5$

6 0

4 years ago

melisa1 [442]

<span>The measure of angle SUT is equal to 90 degrees </span>

8 0

3 years ago

I need the answer no explanation

cricket20 [7]

Answer:

the answer is option D because it cant be division or multiplication and minus does not work

8 0

3 years ago

Read 2 more answers

Help me i'll give brainlist

Levart [38]

Answer:

$x=\frac{1}{2}$

Step-by-step explanation:

equation of a circle: $(x - h)^2+(y-k)^2=r^2$

where (h, k) = center and r = radius

From inspection, we can see that the center of the circle = (0, 0)

and the radius = 1

$\implies (x - 0)^2+(y-0)^2=1^2$

$\implies x^2+y^2=1$

Substitute $y=\frac{\sqrt{3}}{2}$ into $x^2+y^2=1$ and solve for $x$ :

$\implies x^2+(\frac{\sqrt{3}}{2})^2=1$

$\implies x^2+\frac{3}{4}=1$

$\implies x^2=\frac{1}{4}$

$\implies x=\pm \sqrt{\frac{1}{4}}$

$\implies x=\pm\frac{1}{2}$

As point P is in quadrant 1, $x$ is positive, so $x=\frac{1}{2}$

7 0

2 years ago