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3 years ago

Can someone please help me with this and if able to explain how I work it out please

Mathematics

1 answer:

vagabundo [1.1K]3 years ago

7 0

Answer:

4 = $\sqrt{15$

Step-by-step explanation:

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10x+2 = 3x + 30 Find x (please)

Ganezh [65]

Answer: x=4

10x-3x=30-2
7x=28
X=4

7 0

3 years ago

Of the employees who work at stalling printing 90% attened the safety procedures meeting. If 63 employees attended the meeting h

My name is Ann [436]

90% of what is 63....

0.90x = 63
x = 63 / 0.90
x = 70....so 70 ppl work at stalling printing

6 0

3 years ago

Identify the number of terms in the expression. Type the answer in the space provided.

nadya68 [22]

Answer:

Step-by-step explanation:

Terms are separated from one another by + and/or - signs. In this case neither appears, so the given expression constitutes a single term.

3 0

3 years ago

Solve the following equation: *<br> -9 (t – 2) = 4(t – 15)

iragen [17]

Answer:

6 =t

Step-by-step explanation:

-9 (t – 2) = 4(t – 15)

Distribute

-9t +18 = 4t -60

Add 9t to each side

-9t +18+9t = 4t+9t -60

18 = 13t -60

Add 60 to each side

18+60 = 13t-60+60

78 = 13t

Divide each side by 13

78/13 = 13t/13

6 =t

5 0

3 years ago

What is the directrix of the parabola defined by `(1)/(4)(y + 3) = (x − 2)^2`?

Sauron [17]

The directrix of the parabola is $y = \frac {-49}{16}$

<h3>How to determine the equation of the directrix?</h3>

The parabola equation is given as:

$\frac 14(y + 3) = (x -2)^2$

A parabola is represented as:

$4p(y - k) =(x -h)^2$

By comparing both equations, we have:

4p = 1/4 ==> p = 1/16

-k= 3 ==> k = -3

The directrix is represented as:

y = k - p

So, we have:

$y = -3 - \frac 1{16}$

Take the LCM

$y = \frac {-16 * 3- 1}{16}$

Evaluate

$y = \frac {-49}{16}$

Hence, the directrix of the parabola is $y = \frac {-49}{16}$