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3 years ago

23∙(−800)= I will give you 30 points!

Mathematics

1 answer:

Romashka [77]3 years ago

4 0

Answer:

-18,400

Step-by-step explanation:

23 * (-800) = 18,400.

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Slove the question l10.24l

natta225 [31]

Answer:

10.24

Step-by-step explanation:

absolute value is always the same number but positive. Hope I helped.

5 0

3 years ago

What is the value of x in the equation 3 / 2 (4x - 2) - 3x = 5 - (x + 2)? Please hurry.

OLga [1]

Answer:

Step-by-step explanation:

$\frac{3}{2} (4x - 2) - 3x = 5 - (x + 2)$

Expand

$\frac{3}{2} (4x - 2) = 6x - 3$

$- (x + 2) = - x - 2$

$6x - 3 - 3x = 5 - x - 2$

Collect like terms and simplify

$6x - 3x + x = 5 - 2 + 3 \\ 4x = 6$

Divide both sides of the equation by 4

$\frac{4x}{4} = \frac{6}{4}$

simplify

$x = \frac{3}{2}$

7 0

3 years ago

Read 2 more answers

32 divided by 11 is it two or 10 Please help me

mars1129 [50]

Answer:

2 with a remainder of 10

Step-by-step explanation:

11 goes into 32 2 times which is 22. Then there is 10 leftover as a remainder.

5 0

3 years ago

Write 9/4 as a decimal. Round to three decimal places

Greeley [361]

9/4 = 2 1/4

1/4 = 0.25

2.25 is your answer

hope this helps

7 0

3 years ago

mariela is standing in a building and looking out a window at a tree. The tree is 20 feet away from Mariela, Mariela's line of s

PtichkaEL [24]

Answer: 30.01 feet.

Step-by-step explanation:

You need to remember this identity:

$tan\alpha=\frac{opposite}{adjacent}$

Observe the figure attached, where $h_t$ is the height in feet of the tree.

You need to calculate $h_1$ of the Triangle 1, where:

$\alpha= \alpha_1=42\°\\opposite=h_1\\adjacent=20$

Substitute values into $tan\alpha=\frac{opposite}{adjacent}$ and solve for $h_1$ :

$tan(42\°)=\frac{h_1}{20}\\\\h_1=20*tan(42\°)\\h_1=18$

Now you need to calculate $h_2$ of the Triangle 2, where:

$\alpha= \alpha_2=31\°\\opposite=h_2\\adjacent=20$

Substitute values into $tan\alpha=\frac{opposite}{adjacent}$ and solve for $h_2$ :

$tan(31\°)=\frac{h_2}{20}\\\\h_2=20*tan(31\°)\\h_2=12.01$

Then the height in feet of the tree is:

$h_t=h_1+h_2\\h_t=(18+12.01)ft\\h_t=30.01ft$

5 0

3 years ago