All categories

2 years ago

Please help me, if you help then thank you

Mathematics

1 answer:

NNADVOKAT [17]2 years ago

3 0

Answer:

He should have subtracted the exponents

Step-by-step explanation:

You might be interested in

Determine the value of x.<br> x feet<br> 14 feet<br> 48 feet

Citrus2011 [14]

Answer:50 feet

142+482=502

196+2304=2500

Step-by-step explanation:

6 0

2 years ago

Math help ASAP easy points<br><br> What is the value of Z?<br><br> Enter your answer in the box.

Romashka [77]

<h3>Answer: 23</h3>

The three angles of any triangle always add to 180, so,

z+62+95 = 180

z+157 = 180

z+157-157 = 180-157 .... subtract 157 from both sides

z = 23

As a check,

z+62+95 = 23+62+95 = 180

so the answer is confirmed.

3 0

3 years ago

Read 2 more answers

Factor the quadratic equation below to reveal the solutions. X^2+4x-21=-9

a_sh-v [17]

Answer:

x = 3 and x = -7

Step-by-step explanation:

The given quadratic equation is $x^2+4x-21=0$ . We need to find the solution of this equation.

If the equation is in the form of $ax^2+bx+c=0$ , then its solutions are given by :

$x=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}$

Here, a = 1, b = 4 and c = -21

Plugging all the values in the value of x, such that :

$x=\dfrac{-b+ \sqrt{b^2-4ac} }{2a},\dfrac{-b- \sqrt{b^2-4ac} }{2a}\\\\x=\dfrac{-4+ \sqrt{(4)^2-4\times 1\times (-21)} }{2(1)},\dfrac{-4- \sqrt{(4)^2-4\times 1\times (-21)} }{2(1)}\\\\x=3, -7$

So, the solutions of the quadratic equation are 3 and -7.

6 0

3 years ago

Correct and best explained answer gets brainliest.

Oduvanchick [21]

The answer is b. okay

4 0

2 years ago

The equation y = 0.25x describes a proportional relationship between x and y. What is the constant of proportionality?

hoa [83]

Answer:

k = 0.25

Step-by-step explanation:

The standard equation of a proportional relationship is

y = kx ← k is the constant of proportion

y = 0.25x ← is in this form

with k = 0.25

8 0

2 years ago