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andrezito [222]
3 years ago
7

I NEED HELP ASAP WILL GIVE BRAINLYEST

Mathematics
2 answers:
KIM [24]3 years ago
6 0

Answer:

I'm not 100% positive, but I think it's C (the third one)

Step-by-step explanation:

I'm sorry if it's wrong!

NemiM [27]3 years ago
4 0

Answer:

its c brodie

Step-by-step explanation:

it is

You might be interested in
WILL GIVE BRAINLIEST!!!
mamaluj [8]

Answer:

87 points

Step-by-step explanation:

lets take "x" as the avg test scores of the past 6 tests

so

since their are 6 tests, we would represent the 6 tests as "6x"

to find average we need to add all numbers, and divide by the number of numbers

so since the final exam counts as two tests we need to add "99" twice

so

(6x+99+99)/8=90

multiply by "8" on bots sides and add 99 and 99 together

6x+198=720

subtract 198

6x=522

divide by 6

x=87

hope this helps

4 0
4 years ago
Sara earned $7.25 per hour plus an additional $105 in tips waiting tables last week. She earned at least $329.75. If h
jonny [76]

Answer:

The minimum number of hours that Sara could have worked is 31 hours .

The inequality representation of possible value of h is                               105 + 7.25 h \geq329.75  

Step-by-step explanation:

Given as :

The earning of Sara in per hour amount = $7.25 per hour

The additional earning of Sara as tips = $105

The Total earning of Sara = $329.75

Let The minimum number of hours that Sara could have worked =  h hours

<u>Now, According to question</u>

The Total earning of Sara = The earning of Sara in per hour amount × minimum working hours + The additional earning of Sara as tips

I.e $329.75 = $7.25 per hour × h + $105

Or, $105 + $7.25 per hour × h = $329.75

Or, $7.25 per hour × h = $329.75 - $105

Or, 7.25 per hour × h = 224.75

∴ h = \dfrac{224.75}{7.25}

I,e h = 31 hours

So, The number of hours Sara worked = h = 31 hours . Answer

Hence, The minimum number of hours that Sara could have worked is 31 hours .

The inequality representation of possible value of h is                               105 + 7.25 h \geq $329.75  

Answer

4 0
4 years ago
Find the value of x in each case. Give reasons to justify your solutions<br> Q ∈ PR
slavikrds [6]

The exterior angle theorem states that an exterior angle is equal to the sum of its remote interior angles.

With that we know...

m<QRS+m<RSQ=m<SQP

90+34=x+72

124=x+72

x=52 degrees

answer: 52 degrees

7 0
3 years ago
Knowing the population standard deviation, a 95% confidence interval infers that the population mean ___________. is between 0 a
nevsk [136]

Answer:

within ±1.96 standard deviations of the sample mean

Step-by-step explanation:

A 95% confidence interval is found using the formula C = 1 - α, and some other stuff, but let's focus on that for now. Using the formula:

.95 = 1 - α

α = .05

If α = .05, that means a 2-sided confidence interval would be found using the sample mean and the Z-score Z(subscript α/2), or Z.₀₂₅ because α AKA .05 divided by 2 = .025. From there, you take this either to your calculator or a Z-table (or perhaps you have a chart that lists the common CI values), and see that for the area to be .025 beneath a standard normal curve, your Z value is ±1.96 ("plus or minus" because we're considering a 2-sided confidence interval).

3 0
3 years ago
Using the zero product property solve for the x values given (3x-2)(x+1)=0.
RSB [31]

Answer:

{2/3 ; -1}

Step-by-step explanation:

IF THIS ANSWER HELPS YOU, PLEASE MARK IT AS BRAINLIEST!

7 0
3 years ago
Read 2 more answers
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