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2 years ago

Find the zeros for y=x^2-3x-10

Mathematics

2 answers:

attashe74 [19]2 years ago

7 0

Answer:

x=5 and -2

Step-by-step explanation:

Deffense [45]2 years ago

3 0

Answer: y=x^2-3x-10 = The solution is the result of

−

and

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Please help me answer the question 9 though 10

olchik [2.2K]

Answer:

9) slope of AC = slope of FH

Equation of the line is y = - x + 5

10) Area = 320

Step-by-step explanation:

For 9, the only thing similar IS the slope of the hypotenuse because the triangles are along the same line. Unless they're asking for the equation of the line, then that's just using the point slope equation which is:

y = - x + 5

For 10, just multiply 4 and 5 by 4 to get 16 and 20. Then multiply 16 and 20 to get 320.

8 0

2 years ago

The weights of red delicious apples are approximately normally distributed with a mean of 9 Ounces and a standard deviation of 0

Simora [160]

Answer:

The mean of W is 55 ounces.

The standard deviation of W is 4.33 ounces.

Step-by-step explanation:

Let X: weight of a red delicious apple, and B: the weight of the box and packing material.

The distribution that will represent W: the total weight of the packaged 5 randomly selected apples will be also normally distributed.

Applying the property of the mean: $E(aX)=aE(X)$ , the mean of W will be:

$\mu_W=E(W)=E(5X+B)=5E(X)+E(B)=5*9+10=45+10=55$

Applying the property of the variance: $V(aX+b)=a^2V(X)$ , the variance of W will be:

$\sigma^2_W=V(W)=V(5X+B)=5^2V(X)+V(B)=25*0.75+0=18.75$

The mean standard deviation of W will be the squared root of V(W):

$\sigma_W=\sqrt{V(W)}=\sqrt{18.75}=4.33$

The mean of W is 55 ounces.

The standard deviation of W is 4.33 ounces.

3 0

3 years ago

Find the area of the shaded region

dsp73

Answer:

Step-by-step explanation:

I am not 100% sure but I really hope this helps you.

6 0

2 years ago

A grapefruit weighs 0.25 kilograms a lemon weighs 0.24 times as much as the grapefruit how many kilograms did the lemon weigh

lesantik [10]

Answer:

The lemon weighs 0.06 kilograms.

Step-by-step explanation:

0.25*0.24=0.06

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2 years ago

If a triangle has the same base and height will it have the same area

emmasim [6.3K]

Answer:

Yes

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers