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4 years ago

3(5+3)^2 +14 help me pls i cannot deal w my parents again

Mathematics

2 answers:

Yakvenalex [24]4 years ago

7 0

Answer:

206

Step-by-step explanation:

3(5+3)^2+14

3(8)^2+14

3(64)+14

194+14

=206

Scilla [17]4 years ago

6 0

Answer:

206

Step-by-step explanation:

I put it in a calculator

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Use the equation r = d - 1 to find the value of r when d = 3.

natta225 [31]

Answer:

$r = d - 1 \\ d = 3 \\ r = (3) - 1 \\ r = 2$

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3 years ago

Cassie has test grades of 62, 85 and 89 on the first three tests in herpre-algebra class. What are the possible scores she can m

Vsevolod [243]

Explanation:

The test grade for 1st three tests = 62, 85, 89

Let the fourth test score = x

The result we hoping to get is grade B.

Let's find the average of the four test score

$\text{Average = }\frac{Su\text{ m of all test score}}{nu\text{mber of test score}}$ $\begin{gathered} s\text{ um of test scores = 62 + 85 + 89 + x} \\ nu\text{mber of test score = 4} \\ \frac{\text{62 + 85 + 89 + x}}{4}=\text{ Average} \end{gathered}$ $\begin{gathered} A\text{ grade B represents atleast 80} \\ \text{Atleast represents }\ge \\ \frac{\text{62 + 85 + 89 + x}}{4}\text{ }\ge\text{ 80} \\ \frac{\text{236 + x}}{4}\text{ }\ge\text{ 80} \end{gathered}$ $\begin{gathered} \text{236 + x }\ge\text{ }80(4) \\ \text{236 + x }\ge\text{ }320 \\ \text{subtract }236\text{ from both sides:} \\ 236\text{ - 236 + x }\ge\text{ }320\text{ - 23}6 \\ x\text{ }\ge\text{ 84} \end{gathered}$

This means Cassie needs to score 84 or more to get a grade of B

In ineq

3 0

1 year ago

I need help please and thank you

NemiM [27]

Answer:

7x-32=3

32+3= 35

7x=35

35/7

x=5

the answer is 5

Plz mark as brainliest

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3 years ago

Read 2 more answers

A bag contains 6 red marbles, 4 blue marbles, and 1 green marble.What is the probability of choosing a marble that is not blue w

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Answer: 6/121

Step-by-step explanation:

P(not blue)= P(red) × P(green)

=6/11 × 1/11

6/121

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