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shusha [124]
3 years ago
7

Lydia received a parking ticket because she parked ten feet from a fire hydrant. She had estimated her distance from the fire hy

drant as being the minimum allowable distance, which is fifteen feet. What was her percent error?
fifteen percent

thirty-three percent

fifty percent

sixty-seven percent
Mathematics
2 answers:
GREYUIT [131]3 years ago
7 0
Is a 15% percent ................
iogann1982 [59]3 years ago
4 0
15%, 15/10 is 1.5 move the decimal point and vuala
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Find r(x + 1) if r(x) = x3 + x + 1
suter [353]

Substitute x + 1 as x in the equation of the function:

r(x)=x^3+x+1\\\\r(x+1)=(x+1)^3+(x+1)+1=x^3+3(x^2)(1)+3(x)(1^2)+1^3+x+1+1\\\\=x^3+3x^2+3x+x+2=x^3+3x^2+4x+2

Used

(a+b)^3=a^3+3a^3b+3ab^3+b^3

7 0
3 years ago
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Multiply.<br> (2x2 – 3x)(3x2 + 2x - 1)
exis [7]

Answer:

-6x^{2} –7x + 20

Step-by-step explanation:

(2x2 – 3x)(3x2 + 2x – 1)

(4 – 3x)(2x + 5)

(4*2x) + (4*5) + (–3x*2x) + (–3x*5)

8x + 20 -6x^{2} –15x

-6x^{2} –7x + 20

8 0
3 years ago
Work out the percentage discount offered with the family ticket option
ycow [4]

Answer:

15% discount was offered with the family ticket option.

Step-by-step explanation:

So adult is 55 so 55 x 2=110

45 x 2=90

110+90=200 so 170 ( Family ticket )

170 divide by 200=0.85 x 100=85% 100% - 85%=15%

5 0
2 years ago
I need help will give brainiest answer
lukranit [14]

Answer:

i beilive (a) is c idk i could be wrong..

Step-by-step explanation:

4 0
3 years ago
The Venn diagram shows the results of two events resulting from rolling a number cube.
tankabanditka [31]

Answer:

P(A|B)=\frac{2}{3}

P(A)*P(B)=\frac{1}{3}

P(A) =\frac{2}{3}

P(B) =\frac{1}{2}.

Step-by-step explanation:

We use the Venn diagram to calculate the desired probabilities.

Note that there are 6 possible results in the sample space

S = {1, 2, 3, 4, 5, 6}

Then note that in the region representing the intercept of A and B there are two possible values.

So

P (A\ and\ B) = \frac{2}{6} = \frac{1}{3}

In the region that represents event A there are 4 possible outcomes {4, 5, 1, 2}

So

P(A) = \frac{4}{6} = \frac{2}{3}

In the region that represents event B there are 3 possible outcomes {1, 2, 6}

So

P(B) = \frac{3}{6} = \frac{1}{2}.

Now

P(A | B)=\frac{P(A \ and\ B)}{P(B)}\\\\P(A | B)=\frac{\frac{1}{3}}{\frac{1}{2}}\\\\P(A|B)=\frac{2}{3}

P(A)*P(B)=\frac{2}{3}*\frac{1}{2}=\frac{1}{3}

6 0
3 years ago
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