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3 years ago

Someone plz help me please

Mathematics

1 answer:

Liula [17]3 years ago

3 0

Answer:

c and d

Step-by-step explanation:

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4. Solve the inequality: 2x + 3 < 11

GarryVolchara [31]

Step-by-step explanation:

2x+3<11
2x<11-3
2x<8
x<8/2
x<4

hope it helps.

5 0

3 years ago

-5+(-5)=?<br>Please help

sasho [114]

Hello!

The answer to your problem is -10

Since your adding 2 negatives the answer will come out as a negative. your adding -5 to another -5 so the answer will be -10.

5 0

3 years ago

Read 2 more answers

Rewrite the function by completing the square.

bixtya [17]

Answer:

$g(x) = 4(x - 2)^2 -9$

Step-by-step explanation:

Given

$g(x) = 4x^2 - 16x + 7$

Required

Complete the square

Rewrite so that $x^2$ has 1 coefficient

$g(x) = 4(x^2 - 4x) + 7$

Take half of the coefficient of x

$\frac{4}{2} = 2$

Square the result

$(\frac{4}{2})^2 = 2^2$

$(\frac{4}{2})^2 = 4$

Add and subtract the result in the bracket

$g(x) = 4(x^2 - 4x + 4 - 4) + 7$

Expand the bracket to remove -4

$g(x) = 4(x^2 - 4x + 4) - 16 + 7$

$g(x) = 4(x^2 - 4x + 4) -9$

Expand the bracket

$g(x) = 4(x^2 - 2x -2x+ 4) -9$

Factorize

$g(x) = 4(x(x - 2) -2(x-2)) -9$

Factor out x - 2

$g(x) = 4((x - 2)(x-2)) -9$

Express as square

$g(x) = 4(x - 2)^2 -9$

3 0

3 years ago

Can someone please help me

Ede4ka [16]

Answer:

27.4 km

Step-by-step explanation:

vertical line- y

17 km/y= tan 54

y= 17/tan 54= 25.2 km

25.2/x= cos 23

x= 25.2/cos 23= 27.4 km

7 0

3 years ago

Evaluate the expression when x = 3/10 and y = - 2/15

Shkiper50 [21]

Answer:

6/15-3/10

Step-by-step explanation:

3x2/15=6/15

7 0

3 years ago

Read 2 more answers