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3 years ago

PLEASE HELP ME WITH THESE TWO QUESTIONS!! BRAINLEIST

Mathematics

2 answers:

Alex17521 [72]3 years ago

5 0

Answer:

Okay, i will help you on those.

Step-by-step explanation:

Can you give me brainliest on this question? ty :D

PtichkaEL [24]3 years ago

3 0

What is the question

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A bathtub is draining at a constant rate. After 2 minutes, it holds 35 gallons of water. Four minutes later, it holds 15 gallons

OLga [1]

Answer:

Step-by-step explanation:

The slope-intercept formula is:

y = m x + b,

or: y = b - m x, since the rate is negative.

For the 1st formula we have: y = 30 and x = 2

For the 2nd formula: y = 12 and x = 5 ( because: 5 = 2 + 3, or : 3 minutes later, which can be confusing )

30 = b - 2 m

12 = b - 5 m

--------------------

b = 30 + 2 m

12 = 30 + 2 m - 5 m

3 m = 18

m = 18 : 3 = 6

b = 30 + 2 * 6 = 30 + 12 = 42

Answer:

y = 42 - 6 x

4 0

3 years ago

Which of the following numbers are square roots of 64?<br> Check all that apply.

Shkiper50 [21]

Answer:

B AND D

Step-by-step explanation:

Because 8*8=64 and -8*-8=64

p.s

can u mark me brainliest?

5 0

3 years ago

Read 2 more answers

Which of the following expressions are equivalent

gtnhenbr [62]

Answer:

where's the equations and expressions..?

6 0

4 years ago

9. This piecewise function represents the Social Security taxes for 2009. How much did Rachel pay in Social

ANEK [815]

Answer:

Option c.

Step-by-step explanation:

It is given that the piecewise function represents the Social Security taxes for 2009.

$Tax=\begin{cases}0.062x & \text{ when } 0< x < 106,800 \\ \$6,621.60 & \text{ when } x > 106,800 \end{cases}$

We need to find Rachel's security tax if she earned $102,000 in 2009.

Since 102,000 lies in $0$ , therefore

$Tax=0.062x$

Put x=102000.

$Tax=0.062(102000)$

$Tax=6324$

So, the Social Security tax is $6324.

Therefore, the correct option is c.

5 0

4 years ago

(2^8 ⋅ 3^−5 ⋅ 6^0)^−2 ⋅ 3 to the power of negative 2 over 2 to the power of 3, whole to the power of 4 ⋅ 2^28 (5 points) Write y

mihalych1998 [28]

Start by looking at simplifying the smaller problems

anything to the power zero is 1 $6^0 = 1$

next apply the power of a power rule... multiply the powers

$(2^8\times 3^{-5} \times 1 )^{-2} = 2^{8\times -2}\times 3^{-5 \times -2}$

which becomes

$2^{-16}\times 3^{10}$

4 0

3 years ago