Can someone please help with these to problems.. thank you!

Mathematics

2 answers:

MakcuM [25]4 years ago

8 0

PEMDAS

The E stands for exponent, but also powers and square roots.

1. -2√9+4. The square root of 9 is 3. Because the -2 is outside the square root, you have to multiply it by the answer. -2*3=-6. -6+4=-2. The answer to #1 is -2.

2. Doing the same thing you did in #1 in question #2, you get the answer is 29.

Helen [10]4 years ago

3 0

-2 x 3 +4

-6+4

the answer is -2

then for the second one

5+4 x 6

5+24
answer =29

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A couch, a love seat, and a chair cost $1565. The couch costs twice as much as the chair, and the live seat costs $400 more than

Naily [24]

Couch: 2x
love seat: 2x+400
chair: x
total amount: $1565
2x+2x+400+x=1565
5x+400=1565
5x=1165
x= 233
The cost of the chair is $233. The cost of the couch is $466. The cost of the love seat is $866.

Hope this helps!

7 0

3 years ago

Solve this equation for x. Round your answer to<br>the nearest hundredth.<br>7 = In(x + 5)<br>

oksian1 [2.3K]

Answer:

x ≈ 1091.63

Step-by-step explanation:

Using the rule of logarithms

$log_{b}$ x = n ⇔ x = $b^{n}$