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3 years ago

Cindy bought 4 packets of onion seeds. Each packet contained 12 seeds. She planted 1 packet of the seeds, and 8 seeds sprouted.

Mathematics

1 answer:

olga55 [171]3 years ago

7 0

Answer:

B because 8 seeds from pack 1. u do 8 times 3 other packs which is 24 So in between 20-30 seeds will sprout

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Solve the equation for 0° ≤ x ≤ 90°. Round to the nearest degree. 8cotθ + 3 = 5

galina1969 [7]

Answer:

θ = 76°

Explanation:

The given equation is:

8 cotθ + 3 = 5

8 cotθ = 5-3

8 cotθ = 2

cot θ = $\frac{2}{8} = \frac{1}{4}$

Now, we find θ

We know that the cot function is the inverse of the tan function.

The tan of an angle is positive in the first and third quadrants, therefore, the cot will be positive in the first and third quadrants as well

Now, we are given the condition:

0° ≤ x ≤ 90°

Therefore, we know for sure that our angle is in the first quadrant

θ = cot⁻¹( $\frac{1}{4}$ ) = 75.96° = 76° to the nearest degree

Hope this helps :)

5 0

3 years ago

How mucho Does it cost to buy 12 meals if each 3 Meals cost $7.25$ explain please

choli [55]

$\bf \begin{array}{ccll}meals&\$\\\cline{1-2}3&7.25\\12&x\end{array}\implies \cfrac{3}{12}=\cfrac{7.25}{x}\implies \cfrac{1}{4}=\cfrac{7.25}{x}\\\\\\ x=\cfrac{4\cdot 7.25}{1}\implies x=29$

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3 years ago

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In the united states , 13 out of every 20 cans are recycled what percent of cans are recycled

WARRIOR [948]

Answer:

75%

Step-by-step explanation:

3 0

3 years ago

Need help ASAP!!

mestny [16]

j + a = 50

j= a + 12

a+ 12 +a = 50

2a +12 = 50-12

2a = 38

a = 19

j =31

a = 19

Jordan is 31 years old and Anna is 19 years old.

4 0

3 years ago

Factor 16x^2 + 49. Check your work.

Shtirlitz [24]

Answer:

$16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})$

Step-by-step explanation:

Given : Expression $16x^2+49$

To find : Factor the expression ?

Solution :

The given expression is a quadratic function $y=ax^2+bx+c$ the solution is $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

On comparing with general form,

a=16, b=0, c=49

Substitute in the formula,

$x=\frac{-0\pm\sqrt{0^2-4(16)(49)}}{2(16)}$

$x=\frac{\pm\sqrt{-3136}}{32}$

$x=\frac{\pm56i}{32}$

$x=\frac{56i}{32},\frac{-56i}{32}$

$x=\frac{7i}{4},\frac{-7i}{4}$

Factors are $(x-\frac{7i}{4}),(x+\frac{7i}{4})$

Therefore, $16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})$

4 0

3 years ago