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grigory [225]
3 years ago
12

Help with the image below

Mathematics
1 answer:
Yuki888 [10]3 years ago
3 0

Answer:

3x +12

Step-by-step explanation:

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8y-10-5y+8=0<br><br> Y=.....
Montano1993 [528]
8y-10-5y+8=o
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4 0
4 years ago
Right triangles abc and dbc with right angle c are given below. If cos(a)=15,ab=12 and cd=2, find the length of bd.
dmitriy555 [2]

see the attached figure to better understand the problem

we have that

cos(A)=\frac{1}{5} \\ AB=12\ units\\ CD=2\ units

Step 1

<u>Find the value of AC</u>

we know that

in the right triangle ABC

cos (A)=(AC/AB)\\AC=AB*cos(A)

substitute the values in the formula

AC=12*(1/5)\\ AC=2.4\ units

Step 2

<u>Find the value of BC</u>

we know that

in the right triangle ABC

Applying the Pythagorean Theorem

AB^{2} =AC^{2}+BC^{2}\\ BC^{2}=AB^{2} -AC^{2}

substitute the values

BC^{2}=12^{2} -2.4^{2}\\BC^{2}= 138.24\\ BC=11.76\ units

Step 3  

<u>Find the value of BD</u>

we know that

in the right triangle BCD

Applying the Pythagorean Theorem

BD^{2} =DC^{2}+BC^{2}

substitute the values  

BD^{2} =2^{2}+11.76^{2}

BD=11.93\ units

therefore

<u>the answer is</u>

the length of BD is 11.93 units

8 0
3 years ago
Read 2 more answers
CAN ANYONE PLS HELP ME IN THIS PLS I WILL MARK U AS BRAINLIEST :) and pls show work
sergejj [24]

Answer:

(5.9 , 1)

Step-by-step explanation:

(1 , 0) (1 , 2)  length = 2

Third vertex ( x , y)

(x - 1)² + (y - 0)² = 5²

(x - 1)² + (y - 2)² = 5²    isosceles triangle

(y - 2)² - y² = 0

-4y + 4 = 0

y = <u>1</u>

(x - 1)² + (1 - 0)² = 5²

(x - 1)² = 24

x - 1 = ± 2√6

x = 1 + 2√6 or x = 1 - 2√6

X in the 1st quadrant    x = 1+2√6 = <u>5.9</u>

3 0
4 years ago
Read 2 more answers
Help please. I’ll mark you brainliest
Anastaziya [24]
The answer is D. y=x2-8x+15                                                     
4 0
4 years ago
The group of hikers walked 9.75 miles in 3 hours. Maintaining the same pace, how many miles will they cover in 4 hours?
suter [353]

Answer:

I believe 13 miles.

Step-by-step explanation:

Set up a ratio since it will be at the same pace.

9.75 miles/3 hours = x miles/4 hours

Cross multiply to solve for x.

9.75 (4) = 3x

39 = 3x

So x = 13 miles.

6 0
4 years ago
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