I need help with this question please Help!!

Mathematics

1 answer:

ololo11 [35]3 years ago

8 0

Answer:

step-by-step explanation:

15 I think Or it could be 12/3

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Help please, properties of congruence

lawyer [7]

Answer:

Step-by-step explanation:

4 0

3 years ago

Help me on #8 on a-d please.

irga5000 [103]

So for these types of questions you want to substitute the value given into the equation...
So for a,

f(x)=2x-7
f(-3)=?
well instead of x you place -3,
so
f(-3)= 2*-3 - 7
So now you solve using order of operations (PEMDAS)
So,
2*-3=-6 So,
f(-3)=-6-7
-6-7=-13
So,
f(-3)=-13

Try to do that for the others and I'll let you know if you're right. Good luck!

5 0

3 years ago

Frank is having a raised rectangular platform built. He designed it so that the length of the platform is 4 feet longer than the

Anastaziya [24]

One system of equations would be
L = w+4
H = w-10
4H + 8(wL) = 1544
There is one viable solution; the width is 12, the length is 16, and the height is 2.

Using substitution with the system of equations, we have
4(w-10)+8(w(w+4))=1544
4w-40+8(w²+4w)=1544
4w-40+8w²+32w=1544

Combining like terms, we have
8w²+36w-40=1544

Factoring out a 4, we have
4(2w²+9w-10)=1544

Dividing both sides by 4 gives us
2w²+9w-10=386

Subtract 386 from both sides to get
2w²+9w-396=0

Using the quadratic formula, we have
$w=\frac{-9\pm \sqrt{9^2-4(2)(-396)}}{2(2)}
\\
\\=\frac{-9\pm \sqrt{81--3168}}{4}
\\
\\=\frac{-9\pm \sqrt{3249}}{4}=\frac{-9\pm 57}{4}
\\
\\=\frac{-9+57}{4}\text{ or }\frac{-9-57}{4}=\frac{48}{4}\text{ or }\frac{-66}{4}
\\
\\=12\text{ or }-16.5$

Since a negative width makes no sense, we know that w=12.

This means L=w+4=12+4=16 and H=w-10=12-10=2

5 0

4 years ago

4a-2b+40 when a=2 and b=7

hammer [34]

Answer:

Step-by-step explanation:

4(2)-2(7)+40

8-14+40

-6+40=34

7 0

3 years ago

Read 2 more answers

In applying the first-in, first-out method of costing inventories, if 8,000 units that are 30% completed are in process on June

ValentinkaMS [17]

Answer:

The FIFO method (first-in, first-out) considerate the amount of processing at the beginning and the end of the period. This two moments are converted in equivalent units as it follows:

On June 1, the 30% of 8000 units are completed: 0.30(8000) = 2400 completed units.

During June, 28,000 units are completed.

On June 30, the 80% of 4000 units are completed: 0.80(4000) = 3200 units completed. But these units are remaining from June 1. So, the actual amount of equivalent units from June 1 and June 30 is 3200 - 2400 = 800 units.

Then, we some the total of equivalent units of production 28000 + 800 = 28800.

Therefore, the answer is false, because is more than 28600.

3 0

3 years ago