3 years ago

Can anybody help me with this?

Mathematics

1 answer:

Alborosie3 years ago

8 0

Answer:

135 degress

Step-by-step explanation:

add a to b which is 45 and b to c which is 90.

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In a certain clothing store 3 shirts and 5 ties cost 60 dollars and 2 shirts and 3 ties cost 39 dollars what is the cost for eac

Artyom0805 [142]

Solve by elimination:
S = shirt
T= tie

3s+5t=60
2s+3t=39

=
Shirt = 15
Tie = 3

3 0

3 years ago

Which of the following is an equivalent equation obtained by completing the square of the expression below? x^2+6x−8=0 A (x+3)^2

valentina_108 [34]

Answer:

Solving the equation $x^2+6x-8=0$ by completing the square method we get $\mathbf{(x+3)^2=17}$

Option B is correct option.

Step-by-step explanation:

We need to solve the equation $x^2+6x-8=0$ by completing the square method.

For completing the square method: we need to follow: $a^2+2ab+b^2=(a+b)^2$

We are given:

$x^2+6x-8=0$

Solving by completing the square

$x^2+2(x)(?)+(?)^2-8=0$

We need to find ? in our case ? is 3 because 2*3= 6 and our middle term is 6x i,e 2(x)(3)=6x.

So, adding and subtracting (3)^2

$x^2+2(x)(3)+(3)^2-8-(3)^2=0\\(x+3)^2-8-9=0\\(x+3)^2-17=0\\(x+3)^2=17$

So, solving the equation $x^2+6x-8=0$ by completing the square method we get $\mathbf{(x+3)^2=17}$

Option B is correct option.

7 0

3 years ago

I need help plz will give brainliest

lesya [120]

Answer:

$10,000

Step-by-step explanation:

Cross multiply and divide by 55.

Hope this helps!

5 0

3 years ago

Read 2 more answers

What fraction of the months of the year have 31 days

ozzi

7 out of 12 have 31 im guessing

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4 years ago

One year, the population of a city was 193,000. Several years later it was 162,120. Find the percent decrease.

Fofino [41]

16%. You divide those two numbers and then multiply the answer by 100

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3 years ago