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3 years ago

8

Help meeeeedkxkdjsjs

1 answer:

Alex3 years ago

5 0

18 - (8 - 3 • (2t + 5)) = 0

6t + 25 = 0

3.1 Solve : 6t+25 = 0

Subtract 25 from both sides of the equation :
6t = -25
Divide both sides of the equation by 6:
t = -25/6 = -4.167

Final answer is

t = -25/6 = -4.167

You might be interested in

There are 3 red and 8 green balls in a bag. If you randomly choose balls one at a time, with replacement, what is the probabilit

Kaylis [27]

So, the total number of balls is 11. We want to pick 2 red balls and 1 green ball. WLOG (since order doesnt matter here), we can say he picks red, green, red. That means on his first pick, he has a $\frac{3}{11}$ chance of picking the red ball, and he places it back in the bag. The probability of picking a green ball is $\frac{8}{11}$ , and then he places the ball back in the bag. The probability of picking the last red ball is the same as the last red ball example, and we simply multiply the probabilities together as per the multiplication rule to get:

$\frac{3}{11}\frac{3}{11}\frac{8}{11}=\frac{3*3*8}{11^3}=\frac{72}{1331}$

Now, without replacement the order does matter. He picks a red ball, a red ball then a green ball. The probability of picking the first red ball is $\frac{2}{11}$ , and the probability of picking the second red ball is $\frac{1}{10}$ and the probability of picking the green ball is $\frac{1}{9}$ . We want to multiply thm again, as per the multiplication rule like the last problem.

$\frac{2}{11}*\frac{1}{10}*\frac{1}{9}=\frac{1}{11*5*9}=\frac{1}{495}$

5 0

3 years ago

NEED HELP I need to fill in the highlighted parts

Gemiola [76]

The statements and reasons why the given statements are true are presented in the following two column proofs;

Question 1

Given: 9·(x + 6) - 41 = 75

$Prove \ x = \dfrac{62}{9}$

Statement ${}$ Reason

S1. 9·(x + 6) - 41 = 75 ${}$ R1. <u>Given</u>

S2. 9·(x + 6) = 116 ${}$ R2. <u>Addition property</u>

S3. <u>9·x + 54 = 116 </u> ${}$ R3. Distributive property

S4. 9·x = 62 ${}$ R4. <u>Subtraction property</u>

S5. $x = \dfrac{62}{9}$ ${}$ R5. <u>Division property of equality</u>

Question 2.

Statement ${}$ Reason

S1. m∠A + m∠B = m∠D ${}$ R1. Given

S2. ∠C and ∠D form a Linear Pair ${}$ R2. Definition of linear pair

S3. ∠C and ∠D are supplementary ${}$ R3. <u>Linear pair ∠s are supplementary</u>

S4. <u>∠C + ∠D = 180° </u> ${}$ R4. Definition of supplementary

S5. m∠C + m∠A + m∠B = 180° ${}$ R5. <u>Substitution property</u>

Question 3.

Statement ${}$ Reason

S1. ∠BDA ≅ ∠A ${}$ R1. Given

S2. ∠BDA ≅ ∠CDE ${}$ R2. <u>Vertical angle theorem</u>

S3. ∠CDE ≅ ∠A ${}$ R3. Transitive property of congruency

S4. m∠CDE = m∠A ${}$ R4. <u>Definition of congruency</u>

S5. <u>(13·x + 20)° = (14·x + 15)°</u> ${}$ R5. Substitution Property of Equality

S6. 14·x° = 13·x + 5° ${}$ R6. <u>Subtraction property</u>

S7. x = 5 ${}$ R7. Subtraction property

Learn more here:

brainly.com/question/11331230

6 0

3 years ago

The bag has 2 yellow cubes, 5 green cubes, and 3 red cubes. Without replacing the yellow cube, what is the probability of select

laila [671]

32% chance of selecting red at random.

3 0

3 years ago

(4x1,000)+(5x100)+(9x10)+(2x1)+(7x1/10) in standard form

Igoryamba

Answer:

4592.7

Step-by-step explanation:

Add them up:

4000 + 500 + 90 + 2 + 0.7 = 4592.7

6 0

2 years ago

What logarithmic equation is equivalent to the exponential equation e^a=28.37

Tju [1.3M]

Answer:

a=ln(28.37)

Step-by-step explanation:

e^a=28.37

Take ln both sides

ln(e^a)=ln(28.37)

a=ln(28.37)

8 0

3 years ago