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2 years ago

14

CAN SOMEONE HELP ME WITH THIS

1 answer:

jasenka [17]2 years ago

4 0

Answer:

The vertices of a triangle 1/4 the size of the shown triangle would be: (1,1), (2,3), (0,3)

Step-by-step explanation:

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statistical models predict that price p( in dollars) of a new smartphone will change according to the function p=900-4t^2. where

miskamm [114]

You are given the function $p=900-4t^2.$

Express t:

$4t^2=900-p,\\\\t^2=\dfrac{900-p}{4},\\\\t=\sqrt{\dfrac{900-p}{4}}.$

This expression gives the month t in terms of the price p.

5 0

3 years ago

Read 2 more answers

(Anderson, 1.14) Assume that P(A) = 0.4 and P(B) = 0.7. Making no further assumptions on A and B, show that P(A ∩ B) satisfies 0

Goshia [24]

Answer with Step-by-step explanation:

We are given that

P(A)=0.4 and P(B)=0.7

We know that

$P(A)+P(B)+P(A\cap B)=P(A\cup B)$

We know that

Maximum value of $P(A\cup B)$ =1 and minimum value of $P(A\cup B)$ =0

$0\leq P(A\cup B )\leq 1$

$0\leq P(A)+P(B)-P(A\cap B)\leq 1$

$0\leq 0.4+0.7-P(A\cap B)\leq 1$

$0\leq 1.1-P(A\cap B)\leq 1$

$0\leq 1.1-P(A\cap B)$

$P(A\cap B)\leq 1.1$

It is not possible that $P(A\cap B)$ is equal to 1.1

$1.1-P(A\cap B)\leq 1$

$-P(A\cap B)\leq 1-1.1=-0.1$

Multiply by (-1) on both sides

$P(A\cap B)\geq 0.1$

Again, $P(A\cup B)\geq P(B)$

$0.4+0.7-P(A\cap B)\geq 0.7$

$1.1-P(A\cap B)\geq 0.7$

$-P(A\cap B)\geq -1.1+0.7=-0.4$

Multiply by (-1) on both sides

$P(A\cap B)\leq 0.4$

Hence, $0.1\leq P(A\cap B)\leq 0.4$

3 0

3 years ago

Rachel made 28 hats. Rachel made 7 times as many hats as Greg. Let n be the number of hats that Greg made.

il63 [147K]

Answer:

28/7=n is what I believe would be the answer

5 0

3 years ago

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Can you draw a trapezoid with three angles

Kisachek [45]

No, because a trapezoid has four sides.

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3 years ago

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Find the value of x.<br> 2x420<br> 3x+10

Elden [556K]

Answer:

2x+20+3x+10 = 180 (int. angles, parallel)

5x+30 = 180

5x=150

x=30

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2 years ago