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2 years ago

What is the measure of this angle? A. 60 B. 120 C. 125 D. 80

Mathematics

1 answer:

Umnica [9.8K]2 years ago

3 0

60, because 120 is bigger than a right angle, and the picture shows that it is definitely smaller than a right angle.

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Any suggestions or answers

Dominik [7]

The answer would be “D”

6 0

2 years ago

You tell me can A triangle can be formed with side lengths 4 in, 5 in, and 8 in.

den301095 [7]

Yes because the adding 4 and 8 would give you the max 12. Then to get the minimum you would subtract 8 and 4 getting 4. The numbers have to fall within that spectrum. They cannot be any more, less, or the exact numbers given.

5 0

2 years ago

Ten oranges cost $1.60. how much do 8 oranges cost?

aniked [119]

Answer: $1.28 = cost of 8 oranges

Step-by-step explanation:

$1.60 / 10 = cost of 1 orange

$0.16 = cost of 1 orange

$0.16 (8) = cost of 8 oranges

$1.28 = cost of 8 oranges

7 0

2 years ago

Solve 3x2 = −12x − 15. x = −4 ± 2i x = −4 ± i x = −2 ± 2i x = −2 ± i

diamong [38]

ANSWER

$x = - 2 \pm i$

EXPLANATION

We use the method of completing the squares.

The equation is
$3 {x}^{2} = - 12x - 15$

We rewrite the above equation to obtain;

$3 {x}^{2} + 12x = - 15$

We divide through by 3 to obtain;

${x}^{2} + 4x = - 5$

We add half the coefficient of
$x$

to both sides of the equation to get,

${x}^{2} + 4x + {2}^{2} = - 5 + {2}^{2}$

The right hand side is now a perfect square.

${(x + 2)}^{2} = - 1$

We now take square root of both sides to get;

$x + 2 = \pm \sqrt{ - 1}$

We add -2 to both sides,

$x = - 2 \pm \sqrt{ - 1}$

We simplify to obtain,

$x = - 2 \pm i$

3 0

2 years ago

Can anyone help me evaluate this f(x)=8+4x the functions are 0 and -2.

Fynjy0 [20]

Answer: f(0)=8

f(-2)=0

Step-by-step explanation:

f(0)=8+4(0)

f(0)=8+0

f(0)=8

f(-2)=8+4(-2)

f(-2)=8+(-8)

f(-2)=8-8

f(-2)=0

3 0

9 months ago