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3 years ago

What is 5/2x + 2y = 5

Mathematics

1 answer:

Vikentia [17]3 years ago

7 0

Answer:

y= -x+1/2

Step-by-step explanation:

You might be interested in

Factor completely x2 + 20x + 99

Bad White [126]

$x^2 + 20x + 99=x^2+9x+11x+99=x(x+9)+11(x+9)=(x+11)(x+9)$

6 0

3 years ago

DVDs are on sale for $29 each. Felipe writes the expression 2 x 29 to find the cost in dollars of buying 2

Diano4ka-milaya [45]

Answer:

1(29 + 29)= a

Step-by-step explanation:

If the DVD costs 29$, and he buys 2, then you will just add them and multiply them by one.

6 0

4 years ago

10# A consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like

ella [17]

ANSWER:

104

STEP-BY-STEP EXPLANATION:

Given:

Standard deviation (σ) = 700

Confidence level = 95%

Mean error (Eμ) = 135

We have for a confidence level of 95%:

$\begin{gathered} \alpha=100\%-95\%=5\%=0.05 \\ \\ \alpha\text{/2}=\frac{0.05}{2}=0.025 \\ \\ \text{ The corresponding Z value for \alpha/2 = 0.025 is as follows:} \\ \\ Z_{\alpha\text{/2}}=1.96 \end{gathered}$

Now, we calculate the minimum value of the sample size as follows:

$\begin{gathered} n=\left(\frac{Z_{\alpha\text{/2}}\cdot\sigma}{E}\right)^2 \\ \\ \text{ We replacing:} \\ \\ \:n=\left(\frac{1.96\cdot 700}{135}\right)^2 \\ \\ \:n=103.2858\cong104 \end{gathered}$

The minimum sample size needed is 104

3 0

1 year ago

Which polynomial is the product of (4x+1) and (3x+2)?

maria [59]

$(4x+1)(3x+2)\\\\=4x \times 3x+4x \times 2 + 1 \times 3x + 1 \times 2\\\\ = 12x^2+8x+3x+2\\\\ = 12x^2+11x+2$

Answer A

8 0

3 years ago

The angled of a triangle are in the ratio of 2:3:4 find angles in degrees

jeyben [28]

40°, 60° and 80°

sum the parts of the ratio 2 + 3 + 4 = 9

The sum of the angles in a triangle = 180°

Divide 180 by 9 to find one part of the ratio

$\frac{180}{9}$ = 20° ← 1 part of the ratio

2 parts = 2 × 20 = 40°

3 parts = 3 × 20 = 60°

4 parts = 4 × 20 = 80°

The angles in the triangle are 40°, 60° and 80°

6 0

4 years ago