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3 years ago

I need help with this.

Mathematics

1 answer:

ryzh [129]3 years ago

6 0

Answer:

The answer is (D) the starting temperature was 82 degrees F and dropped at a rate of 8 degrees per hour.

Step-by-step explanation:

For every 2 hours the temperature drops 8 degrees.

hope it helps

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Solve the Inequality Give 5 solutions of the inequality ( Show your solution).<br> 2x -3 < 5

marysya [2.9K]

Answer:

Inequality Form:

x<4

1<4

3<4

-1004<4

Interval Notation:

(−∞,4)

(-1004,4)

(3,4)

(1,4)

Step-by-step explanation:

5 0

4 years ago

Eduardo mixed 5 pounds o cashews and almonds. Cashews cost $8 per pound and almonds cost $6 per pound. The total cost of the mix

NemiM [27]

Answer:

3.5 pounds of the mixture was almonds

Step-by-step explanation:

Assume that the mixture contains x pounds of cashews and y pounds of almonds

∵ x represents the amount of cashew

∵ y represents the amount of almond

∵ Eduardo mixed 5 pounds of cashews and almonds

∴ x + y = 5 ⇒ (1)

∵ Cashews cost $8 per pound

∵ Almonds cost $6 per pound

∵ The total cost of the mixture was $33

→ Multiply x by 8 and y by 6 and equate their sum by 33

∴ 8x + 6y = 33 ⇒ (2)

Now we have a system of equations to solve it

→ Multiply equation (1) by -8 to eliminate x

∵ -8(x) + -8(y) = -8(5)

∴ -8x - 8y = -40 ⇒ (3)

→ Add equations(2) and (3)

∵ (8x + -8x) + (6y + -8y) = (33 + -40)

∴ -2y = -7

→ Divide both sides by -2

∴ y = 3.5

∵ y represents the amount of almond

∴ 3.5 pounds of the mixture was almonds

7 0

3 years ago

HELP PLSSS IT'S A FINALLL!!!!!!!!!!! WILL GIVE BRAINLEST AND 50 POINTS!!!! PLEASE PLEASE PLEASE HELP!!!!

Lelu [443]

Answer:

Step-by-step explanation:

1). By applying Pythagoras theorem in the triangle formed by two sides and the diagonal,

Length of the diagonal = $\sqrt{(\text{side})^2+(\text{side})^2}$

= $(\text{side})\sqrt{2}$

= 25√2

AC ≈ 35.56 units

2). Since, diagonal of a square is the angle bisector of interior angles of the square,

m∠CAB = 45°

By applying sine rule in ΔABC,

sin(45°) = $\frac{\text{Opposite side}}{\text{Hypotenuse}}$

$\frac{1}{\sqrt{2}}=\frac{AB}{AC}$

$\frac{1}{\sqrt{2}}=\frac{25}{AC}$

AC = 25√2

AC ≈ 35.56 units

4 0

3 years ago

To get to his parents’ house, Ruben would have to drive due north 12 miles. To get to his grandparents’ house, he would have to

Nata [24]

Answer:

d = 15 miles

Step-by-step explanation:

To get to his parents’ house, Ruben would have to drive due north 12 miles.

To get to his grandparents’ house, he would have to drive due east 9 miles.

It is required to find the distance between the parents’ and grandparents’ houses.

First distance is 12 miles and second distance is 9 miles.

So,

$d=\sqrt{12^2+9^2} \\\\d=15\ \text{miles}$

So, the distance between the parents’ and grandparents’ houses is 15 miles.

6 0

4 years ago

Please help step by step

TEA [102]

Answer:

i have made it in above picture

6 0

3 years ago