3 years ago

Plzzzzzzzzzzzzzzzzz help me

Mathematics

1 answer:

harina [27]3 years ago

5 0

Answer:D

Step-by-step explanation:

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Please answer all with explanation

stepladder [879]

3b.4+y/3=2

12+y/3=2

12+y=6

y=6-12

y=-6

8 0

3 years ago

8. Rename the quadratic function f(x) = -2(x + 4)2 - 5 in standard form. A. f(x) = -2x2 + 16x - 37 G. f(x) = -2x2 – 16x + 27 B.

NNADVOKAT [17]

Answer:

see explanation

Step-by-step explanation:

f(x)= -2(x²+8x+16)-5

$-2 {x}^{2} - 16x - 32 - 5 \\ f(x)= - 2 {x}^{2} - 16x - 37$

7 0

3 years ago

Given the speeds of each runner below, determine who runs the fastest.

Lesechka [4]

Answer:

Debbie runs 9 feet per second: 9 ft/s

Jessica runs 1 mile in 440 seconds: 414/50 ft/s = 207/25 ft/s = 8 7/25 ft/s

jesssica runs 131 feet in 10 seconds: since 1 mile = 5280 ft we have 1/470 mi/s = 5280/470 ft/s = 528/47 ft/s = 11 11/47 ft/s

ron runs 603 feet in 1 minute: 547 ft/min = 603/60 ft/s = 201/20 ft/s = 10 1/20 ft/s

Since:

11 11/47 > 10 1/20 > 9 > 8 7/25

Emily runs the fastest.

7 0

3 years ago

Jack bought a 1/4 pound of salami and 1 2/3 pounds of Ham at the deli. Both items are on sale for $12 per pound. What is the tot

Liono4ka [1.6K]

Answer:

Salami: $3.00

Ham: $ 8.00

Step-by-step explanation:

12 * 1/4 = 12/4 = $3.00

12 * 2/3 = 24/3 = $8.00

8 0

3 years ago

If two angles are supplementary and one angle is 81°, what does the second angle measure?

ankoles [38]

Answer:

Step-by-step explanation: $\geq \\ \sqrt{x}$

8 0

3 years ago