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MATH SOLVE
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Look at the figure. How can you prove ∆ABD and ∆ACD are congruent?A. ∆ABD ≅ ∆ACD by the SAS Postulate.B. It is not possible to determine if the triangles are congruent.C. ∆ABD ≅ ∆ACD by the SSS Postulate.
General
10 months ago
PLEASE HELP WITH THIS QUESTION! WILL MARK BRAINLIESTRiley made a scale drawing of a triangular clock face. Riley used a scale factor of 3 when making her drawing. If the base and the height of Riley's drawing are 10 centimeters and 15 centimeters respectively, what is the area of the triangular clock face?A. 75 square centimetersB. 225 square centimetersC. 675 square centimetersD. 2,700 square centimeters
General
10 months ago
Solve the inequalities by graphing. Select the correct graph. y > x y < -x
General
10 months ago
Please help asap! lots of points
General
10 months ago
How do you multiply fractions using cancellations
General
10 months ago
Which of the following are in correct order from greatest to least?
General
10 months ago
ASAP What is the lateral area of this regular octagonal pyramid?? Explain your answer if you can plz thanks
General
10 months ago
What is the value of x in the diagram below?
General
10 months ago
Edgar has birdbath that holds 2 gallons of water.He only wants fill it 3/4 full How many 1 pint containers does it take to fill birdbath? EXPLAIN
General
10 months ago
Consider the proof.Given: In △ABC, BD ⊥ ACProve: the formula for the law of cosines, a2 = b2 + c2 – 2bccos(A)StatementReason1. In △ABC, BD ⊥ AC 1. given2. In △ADB, c2 = x2 + h2 2. Pythagorean thm. 3. In △BDC, a2 = (b – x)2 + h2 3. Pythagorean thm. 4. a2 = b2 – 2bx + x2 + h2 4. prop. of multiplication5. a2 = b2 – 2bx + c2 5. substitution6. In △ADB, cos(A) = 6. def. cosine7. ccos(A) = x 7. mult. prop. of equality8. a2 = b2 – 2bccos(A) + c2 8. ?9. a2 = b2 + c2 – 2bccos(A) 9. commutative propertyWhat is the missing reason in Step 8? a. Pythagorean theoremb. definition of cosinec. substitutiond. properties of multiplication
General
10 months ago
A pyramid has a regular hexagonal base with side lengths of 4 and a slant height of 6. Find the total area of the pyramid.
General
10 months ago
Tristan’s fish is 1/2 yard long, 1/6 yard wide, 1/3 yard high. What should the side lengths of each cubic block used to find the volume be?
General
10 months ago
Derive the equation of the parabola with a focus at (0, –4) and a directrix of y = 4. (2 points)A f(x) = –16x2B f(x) = – x2C f(x) = x2D f(x) = 16x2
General
10 months ago
Factor completely: 5ab + 3ay + 5b + 3y (1 point) (5b + 3y)(a + 1) (5b - 3y)(a + 1) (5b + 3y)(a - 1) Prime 5. Factor completely: 4x3 + 28x2 + 7x + 49 (2 points) (x - 7)(4x2 + 7) (x - 7)(4x2 - 7) (x + 7)(4x2 + 7) (x + 7)(4x2 - 7) 6. Factor completely: 21x3 + 35x2 + 9x + 15 (2 points) (3x - 5)(7x2 - 3) (3x - 5)(7x2 + 3) (3x + 5)(7x2 - 3) (3x + 5)(7x2 + 3) 7. Factor completely: 10xy + 3y + 20ax + 6a (2 points) (10x - 3)(y - 2a) (10x - 3)(y + 2a) (10x + 3)(y + 2a) (10x + 3)(y - 2a)
General
10 months ago
A system of two linear equations is shown. 5x + 2y = –4 5x + 2y = 1 Which statement is true regarding the solution to this system of linear equations? A.The system has no solution. B.The system has one unique solution at (5, 2). C. The system has one unique solution at (–4, 1). D. The system has an infinite number of solutions.
General
10 months ago
AC←→ is tangent to the circle with center at B. The measure of ∠ACB is 71°. What is the measure of ∠ABC? Enter your answer in the box. m∠ABC = __ °
General
10 months ago
3. In the rhombus, what are m∠1, m∠2 and m∠3? The diagram is not drawn to scale.
General
10 months ago
What is the value of n?Enter your answer in the box.n = cm
General
10 months ago
Given: ΔABC Prove: All three angles of ΔABC add up to 180°. The flow chart with missing reason proves the measures of the interior angles of ΔABC total 180°.
General
10 months ago
A potato chips manufacturing facility uses 1/6 of a barrel of oil in each batch. The facility used 2/3 of a barrel of oil yesterday. How many batches of potato chips did the facility make? A. 2/3 B. 1/4 C.2 D.4
General
10 months ago
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