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4 years ago

What is the simplified value of the expression below? –8*(-3) -24 -11 11 24

Mathematics

1 answer:

LenKa [72]4 years ago

3 0

The answers 24

Hope this helped.

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-1^{2008} + (-1)^{2007} = ? (1 - (-1)^[11])^[2] = ? Questions for fun~

vladimir2022 [97]

1. -2
2. 4
Is the answers to the following questions

7 0

3 years ago

At a concession stand,three hot dog(s) and two hamburger(s) cost $8.25;two hot dog(s) and three hamburger(s) cost $8.00. Fin

poizon [28]

Answer:

The cost of one hot dog and the cost of one hamburger is $3.25

The cost of one hot dog is $1.75

Step-by-step explanation:

Let the number of hot dogs be represented by d and hamburgers be h

3d + 2h = 8.25 ----- eqn(I)

2d + 3h = 8.00 ----- eqn(II)

From eqn(I): d = (8.25 - 2h)/3

substitute the expression for d into eqn(II)

2d + 3h = 8

2(8.25 - 2h)/3 + 3h = 8

(16.50 - 4h) + 3h(3) = 8(3)

16.50 - 4h + 9h = 24

5h = 24 - 16.50

5h = 7.50

h = 7.50/5 = 1.50

One hamburger costs $1.50

d = (8.25 - 2h)/3 = (8.25 - 2×1.50)/3 = (8.25 - 3.00)/3 = 5.25/3 = 1.75

One hot dog costs $1.75

Cost of one hot dog and cost of one hamburger = $1.75 + $1.50 = $3.25

3 0

3 years ago

PLEASE HELP ME! Find m∠FEC. Answer Options: A. 69 B. 50 C. 57 D. 37

Anna35 [415]

Answer:

Option (A)

Step-by-step explanation:

Measure of an angle formed between a chord and a secant is equal to the half of the difference of the intercepted arcs.

m(∠FEC) = $\frac{1}{2}[m(\text{arc FC})-m(\text{arc})FD]$

(15 + 6x)° = $\frac{1}{2}[(24x - 6)^{\circ}-(9+7x)^{\circ}]$

30 + 12x = (24x - 7x) - (6 + 9)

30 + 12x = 17x - 15

17x - 12x = 30 + 15

5x = 45

x = 9

m(∠FED) = (15 + 6x)

= 15 + 6(9)

= 69°

Option (A) will be the correct option.

7 0

3 years ago

A flashlight is projecting a triangle onto a wall, as shown below.

zavuch27 [327]

Answer:

Hence the correct option is 3rd option. 40

Step-by-step explanation:

If two figures are similar, then the ratio of the corresponding sides is proportional.

$\frac{15}{30} =\frac{20}{n} \\\\n=\frac{30 \times 20}{15} \\\\n= 40.$

6 0

3 years ago

1. What is the discriminant of the equation 5x2 - 20x + 20 = 0?

jok3333 [9.3K]

Answer:

Step-by-step explanation:

D = 20²-4(5)(20) = 400-400 = 0

6 0

3 years ago