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2 years ago

Tammy needs at least an 85% in order to pass her chemistry class.

Mathematics

1 answer:

MissTica2 years ago

7 0

17/20 or 0.85 is the answer

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15 cm<br> 8 cm<br> 6 cm<br> Find the area

DaniilM [7]

Answer:

The answer is 720

Step-by-step explanation:

15*8*6=720

Hope this helps!!

5 0

2 years ago

The focus of a parabola is (0, -3) and the directrix is y = 3. What is the equation of the parabola?

snow_tiger [21]

Answer:

Step-by-step explanation:

the answer is D, just answered it and I got it right.

5 0

3 years ago

Help anyone can help me do this question,I will mark brainlest.

Luda [366]

Answer:

$344 {cm}^{2}$

Step-by-step explanation:

$area \: of \: the \: square \\ = 40cm \times 40cm \\ = 1600 {cm}^{3} \\$

$area \: of \: the \: circle \\ = \pi {r}^{2} \\ = 3.14 \times {(20)}^{2} \\ = 3.14 \times 400 \\ = 1256 {cm}^{2} \\$

$area \: of \: shaded \: region \\ = 1600 {cm}^{2} - 1256 {cm}^{2} \\ = 344 {cm}^{2} \\$

3 0

3 years ago

Solve for completing the square x^2-12x+11=0

Ede4ka [16]

Answer:

x = 6 ± 5

Step-by-step explanation:

x² - 12x + 11 =0

x² - 12x = -11 Now add this number to both sides of the equal sign (1/2 of the coefficient of x-term squared)

x² - 12x +36 = -11 + 36 1/2(-12)² = 36

(x - 6)(x - 6) = 25

(x - 6)² = 25

$\sqrt{(x-6)}$ ² = $\sqrt{25}$ square root of both side of the equation

x - 6 = ± 5 (5)² = 25 and (-5)² = 25

x = 6 ± 5

4 0

3 years ago

Bianca drove at 60 miles per hour for 1 1/2 hours

aleksandrvk [35]

Answer:

Bianca's speed: 60 mph

Colin's speed: (150)/(2.5) = 60 mph

Dave's speed: (105)/(7/4) = 60 mph

C. Bianca had the fastest average rate of speed

4 0

3 years ago