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fiasKO [112]
3 years ago
9

I really need help with this since I have a math test tomorrow, I'd really appreciate it if someone could help.

Mathematics
1 answer:
Elza [17]3 years ago
5 0
Ok first of all, I EXTREMELY appreciate your use of parenthesis. Ok so first just raise both sides to the power of 1/2.

(\frac{3}{8})^{x}=\frac{8}{11}

You'll see why I didn't include a negative. Then apply the log base 3/8 and you get

x =   log_{ \frac{3}{8} }( \frac{8}{11} )
Then you split the log up and you get
x =  log_{ \frac{3}{8} }(8)  -  log_{ \frac{3}{8} }(11)
You couldn't put a negative value for a log. That is why I excluded the negative part of the sqrt.
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Greatest common factor of 7 and 7
Zina [86]

Answer:

7

Step-by-step explanation:

It is the same number, all you have to do is write out the factors but if its ever the same number just know itll always be that number

3 0
3 years ago
In triangle XYZ, the measure of angle YXZ is 14.5*, and the measure of angle XYZ is 75. What is the measure of
sergiy2304 [10]
I believe the measure of angle XZY is 90.5°
5 0
2 years ago
Please answer this now in two minutes
Xelga [282]

Answer:

17.5

Step-by-step explanation:

The following data were obtained from the question:

Angle R = 105°

Side R = r

Side S = 15

Side T = 6

The value of r can be obtained by using cosine rule formula as shown below:

inding sides:

r² = s²+ t² – 2st cos(R)

r² = 15² + 6² – 2 × 15 × 6 × cos105°

r² = 225 + 36 – 180 × cos105°

r² = 261 + 46.587

r² = 307.587

Take the square root of both side

r = √307.587

r = 17.5

Therefore, the value of r is 17.5

7 0
3 years ago
The base of a parallelogram is 1.4 feet long and the height is 0.32feet. What is the area of the parallelogram ​
bija089 [108]

Step-by-step explanation:

In a parallelogram

base (b) = 1.4 feet

height (h) = 0.32 feet

Now

Area of the parallelogram

= b * h

= 1.4 * 0.32

= 0.448 feet²

Hope it will help :)

6 0
2 years ago
2x+7y=3<br><br>x=−4y<br><br>​what is x and y
natima [27]

Answer:

x=-4

y=-3

Step-by-step explanation:

2(-4y)+7y=3

-8y+7y=3

y=-3

3 0
2 years ago
Read 2 more answers
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